TLV SC-F71 Instruction Manual
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TLV SC-F71 Instruction Manual

Multi-purpose controller
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172-65710M-04 (SC-F71 Parameters/Functions) 23 December 2021
Multi-purpose Controller
SC-F71
(Parameters/Functions)
Copyright © 2021 by TLV CO., LTD.
All rights reserved

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Summary of Contents for TLV SC-F71

  • Page 1 172-65710M-04 (SC-F71 Parameters/Functions) 23 December 2021 Multi-purpose Controller SC-F71 (Parameters/Functions) Copyright © 2021 by TLV CO., LTD. All rights reserved...

  • Page 2: Table Of Contents

    6. Output Function ..............143 6.1 Changing Output Assignment [Control Output, Retransmission Output, Logic Calculation (Event) Output, Instrument Status Output] ....143 6.2 Changing Output Type of OUT3 ............151 6.3 Using Retransmission Output ............153 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 3 9.9 Checking the Instrument Information ..........344 10. Setting and Key Operation ........... 347 10.1 Limiting the Setting Range of Set Value (SV) ......... 347 10.2 Eliminating a Sudden Set Value Change (Setting Change Rate Limiter) 350 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 4 10.7 Registering a Set Value (SV) Without Pressing the SET Key ..380 10.8 Accessing Some Functions Directly (FUNC Key) ......381 10.9 Restricting Key Operation (Set Data Lock) ........384 10.10 Initializing the Set Data ..............386 Product Warranty ............... 388 Service ..................389 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 5: Introduction

    If detailed instructions for special order specifications or options not contained in this manual are required, please contact TLV for full details. This instruction manual is intended for use with the model(s) listed on the front cover.

  • Page 6: Pictorial Table Of Contents

    Pictorial table of contents Sections describing hardware shown below. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 7: Safety Considerations

     Do not touch high-voltage connections such as power supply terminals, etc. to avoid electric shock.  TLV is not responsible if this instrument is repaired, modified or disassembled by non-factory-approved personnel. Malfunction may occur and warranty is void under these conditions.
  • Page 8 Deformation or discoloration may occur. Use a soft, dry cloth to remove stains from the instrument.  To avoid damage to the instrument display, do not rub with an abrasive material or push the front panel with a hard object. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 9: Notice

     The figures, diagrams and numeric values used in this manual are only for explanation purpose.  TLV is not responsible for any damage or injury that is caused as a result of using this instrument, instrument failure or indirect damage.

  • Page 10: Symbols

    11-segment character Minus Period B (b) D (d) O (o) ＊ Degree Prime → Asterisk Š ‹ 7-segment character Minus Period B (b) D (d) N (n) O (o) ＊ Degree Prime Asterisk Š 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 11 Voltage (V)/Current (I) Screens used in this manual The SC-F71 has two inputs. Following input type is available by setting parameters: Dual PV (PV + PV) type or PV + Remove setting type. The input type is set to PV + Remote setting type when shipped from the factory.

  • Page 12: Document Configuration

    172-65712M This manual describes how to set up the F71 Instruction Manual instrument for communication with a [PLC Communication] programmable controller (PLC). Read this manual carefully before operating the instrument. Please place the manual in a convenient location for easy reference. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 13: Mode Switching

    This chapter describes various modes and how to switch between them. Mode switching The instrument has eight different modes for operation and setting. Modes can be MODE switched through the key operation of keys. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 14 Automatically (in 1 second) Monitor & SV setting mode Parameter select mode The first selected screen is Input 1_Measured value (PV)/ displayed. Input 1_Set value (SV) * Displayed for 2 seconds (Single input type) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 15: Selecting Parameters

    Manual mode.  1-loop control (including Remote setting input/Input circuit error alarm)  2-loop control/Cascade control  Control with PV select  Differential temperature control 1-loop control (including Remote setting input/Input circuit error alarm) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 16 2-loop control/Cascade control Control with PV select 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 17 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 18 Differential temperature control 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 19: Parameter Select Mode [B]

    PV/SV monitor* screens are displayed. The instrument starts from the Parameter select mode after being turned on. * The PV/SV monitor includes SV setting mode and Manual manipulated output value setting. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 20: Operation Transfer Mode [C]

    The display can be switched in the reverse order when the R.SET key is pressed. Use the key to switch modes (no SET key operation required), and a status indicator lights up or blinks if there is a status indicator corresponding to the mode. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 21: Setting Lock Mode [D]

    15 setting 5 PSL15 PSL05 Setting lock mode is entered. The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 22: Memory Area Transfer Mode [E]

    2.5 Memory Area Transfer Mode [E] Display of each mode AREA Memory area transfer AREA Monitor & SV setting mode The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 23: Parameter Setting Mode [F]

    Input 1_ value (EV4') Manual reset [low] EV4` 1. MR Return to Input 1_ Pn40 FF amount screen 1. FF The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 24 This parameter is displayed when any of the following are selected in Select function for input 2: "Remote setting input", "Cascade control", "Control with PV select", or "2-loop control/Differential temperature control". The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 25: Setup Setting Mode [G]

    1.LEV5 Input 1_ Level PID setting 6 1.LEV6 Input 1_ Level PID setting 7 1.LEV7 Return to Sn51 screen The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 26 2.LEV5 Input 2_ Level PID setting 6 2.LEV6 Input 2_ Level PID setting 7 2.LEV7 Return to Sn52 screen The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 27 Input 2_ Digital filter Hold reset C.DF 2.HLDR Return to Cascade_ Sn52 Scale high screen C.SCH Cascade_ Scale low C.SCL The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 28: Engineering Mode [H]

    To set up parameters in Engineering mode, control must be stopped (STOP). Parameters can be checked while in RUN mode. The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 29 Area switching time (Without Interlock area set signal) selection DITIM Output Return to action at Fn23 screen control stop The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 30 Fn42 screen Fn43 screen selection dOLG2 DO3 logic calculation selection dOLG3 DO4 logic calculation selection dOLG4 Return to Fn34 screen The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 31 Input 1_ Start determination SV tracking point 1.PDA Integral/derivative Input 1_ Level time decimal point PID action position selection 1.DDP 1.LPID The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 32 STOP [heat-side] 2.RMV Input 2_ Start determination point 2.PDA Input 2_ Level PID action selection 2.LPID The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 33 Input 1_ Response Pressure corrective action speed learning (temp) limiter for ramp control parameter L2 0 down 1.PrL 1. L2 1.Pc3 The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 34 Input 2_ Response Pressure corrective action speed learning (temp) limiter for ramp control parameter L2 0 down 2.PrL 2. L2 2.Pc3 The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 35 Input 1_Manipulated output value at stop [cool-side] 1.RMVc Undershoot suppression factor Overlap/ Deadband reference point dbPA Return to Fn56 screen The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 36 CMRM MP.LTM Return to response Fn60 screen waiting time MP.TMO communication start time MP.STM Slave register bias MP.SLB The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 37 Fn71 screen Fn72 screen temperature ROM version Product identification code monitor SC-F7 Instrument number monitor 00000 Return to Fn91 screen The display can be switched in the reverse order when the R.SET key is pressed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 38: Parameter

     PV select input span: PV select input range low up to PV select input range high [Example] When there is a relation as follows between the Input range of Input 1 and Input 2. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 39: Monitor & Sv Setting Mode [A]

    Input 2_Set value (SV) Input 2_Setting limiter low to Input 2_ Setting limiter high [Varies with the setting of the Decimal point ★ position.] Set value (SV) of -(Input 1_Input span) to +(Input 1_Input differential temperature span) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 40 "Remote/Local transfer (two-loop/differential temperature control transfer)". Displayed when "Soft start" is selected in "Soft start/setting change rate limiter selection" in Function block No. 70: Memory area function (AREA). Displayed when Interlock function is available. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 41: Parameter Select Mode [B]

    Displayed when "2-loop/differential temperature control" is selected in "Select function for Input 2" AND "PID control" or "Heating/Cooling PID control" is selected both in Input 1 and Input 2. Displayed when "Memory area transfer (without area set signal)" is selected in DI function selection. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 42: Setting Lock Mode [D]

    Displayed only (not settable) when "Memory area transfer (without area set signal)" is selected in "DI function selection" AND "External mode" is selected in "Control area Local/External transfer." Not displayed when "Memory area is not adjustable when the setting data is locked" is selected in Area lock. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 43: Parameter Setting Mode [F]

    Select function for input 2. PV select input range low to PV select input range high [Varies with the setting of the Decimal point position.] Manipulated output value: ★ -5.0 to +105.0% 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 44 Displayed when Event 3 is available. Displayed when type selected in Event 3 has high/low individual setting. Displayed when Event 4 is available. Displayed when type selected in Event 4 has high/low individual setting. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 45 [Decimal point position depends on the Table 1 ★ setting for Input 1_Valve coefficient F.] ★ Data included in Memory area Not displayed when "Pressure control operation [MC-(V)COS(R)]" is selected in "Input 1_Control action". 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 46 1) 2) 3) 5) Input 2_FF amount ★ 2. OLH Input 2_Output limiter Input 2_Output limiter low to 105.0% 105.0 ★ high 5.0% to Input 2_Output limiter high 5.0 2. OLL Input 2_Output limiter low ★ 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 47 [cool-side] ★ Data included in Memory area Displayed when the “Input 1_Control action” is Heating/Cooling PID control. Displayed when the “Input 1_Proportional band [heat-side]” in the same memory area is other than 0 (0.0) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 48 [Time unit depends on the Soft start time seconds) unit setting.] 2.SVRU Input 2_Setting change 0 to Input 2_Input span rate limiter (up) 0: No function ★ [Varies with the setting of the Decimal point position.] 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 49 Displayed when “Control with PV select” is selected in “Select function for Input 2”. Displayed when "2-loop control/Differential temperature control" is selected, AND in the case of "2-loop control", "PID control" or "Heating/Cooling PID control" is selected in both Input 1_Control action and Input 2_Control action. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 50: Setup Setting Mode [G]

    Displayed as "RS ratio" when "Remote setting input" is selected in Select function for Input 2. Displayed when Input 2 is Voltage/Current and when Square root extraction is available. Not displayed when "No function" or "Remote setting input" is slected in "Select function for Input 2." 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 51 (Input 1_Level PID setting 4) less than or equal to (Input 1_Level PID setting 5) less than or equal to (Input 1_ Level PID setting 6) less than or equal to (Input 1_Level PID setting 7) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 52 2: ST running now -1: Aborted. Setting changed -2: Aborted. Abnormal input -3: Aborted. Timeout -4: Aborted. Abnormal calculated values Not displayed when "Pressure control operation [MC-(V)COS(R)]" is selected in "Input 1_Control action". 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 53 0.1 to 1000.0% of Input 1_Input span MAS.I Cascade_Integral time 1 to 3600 seconds, 0.1 to 3600.0 1) 3) (master-side) seconds or 0.01 to 360.00 seconds [Varies with the setting of the Integral/ Derivative time decimal point position.] 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 54 0: No 2.OSP prevention feature 1: Yes Displayed when "2-loop control/Differential temperature control" is selected in "Select function for Input 2" AND "3 – 7 (Pressure control operation [MC-(V)COS(R)])" is selected in "Input 2_Control action". 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 55: Engineering Mode [H]

    If they are changed unnecessarily, it may result in malfunction or failure of the instrument. TLV will not bear any responsibility for malfunction or failure as a result of improper changes in the Engineering mode. NOTE Parameters in Engineering mode are settable only when the controller is in STOP mode.
  • Page 56 SET. KY Data registration 0: SET key method Used to register the Set value (SV) using the SET key. 1: Direct registration Used to register the Set value (SV) without pressing the SET key. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 57 When MC-(V)COS(R) pressure control is selected for Input 1_Control action: 15 to 24 0: C 1. U N I T Input 1_Display unit Product 1: F identificatio n code specified at the time of order. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 58 AND a setting other than "Pressure control operation [MC-(V)COS(R)])" is selected in "Input 1_Control action". Displayed when "Voltage (V)/Current (I)" is selected in Input 1 AND "PID control" or "Heating/Cooling PID control" is selected in "Input 1_Control action". 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 59 Input 2_Minimum value of input range to Input range (Input 2_Input range high - 1 digit) Voltage (V)/Current (I) Inputs (For Remote setting input): Input 1_Minimum value of input range to (Input 2_Input range high - 1 digit) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 60 10: Autotuning (AT) (Common to Input 1 and 2) 11: Input 1_Autotuning (AT) 12: Input 2_Autotuning (AT) 13: Set data unlock/lock transfer 14: Direct/Reverse action transfer 15: Memory area transfer (2 points, without area set signal) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 61 Same as OUT1 function selection OUT2 function selection oSL3 Same as OUT1 function selection OUT3 function selection oLG1 0 to 255 OUT1 logic calculation 0: OFF selection +1: Event 1 +2: Event 2 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 62 4: Input 1_Deviation 5: Input 1_Manipulated output value [heat- side] 6: Input 1_Manipulated output value [cool- side] 7: Input 2_Measured value (PV) 8: Input 2_Local SV 9: Input 2_SV monitor value 10: Input 2_Deviation 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 63 11: Input 2_Manipulated output value 12: Remote setting input value 13: Current transformer 1 (CT1) input value 14: Current transformer 2 (CT2) input value 15: Measured value (PV) of differential temperature input 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 64 Input 2_ Input range high Input 2_ Deviation: +(Input 2_Input span) Manipulate d output value, and Current transformer (CT) input value: 100.0 Measured value (PV) differential temperatur e input: 100 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 65 Retransmission output 2 Same as Retransmission output 1 type type AHS2 Retransmission output 2 Same as Retransmission output 1 scale high scale high ALS2 Retransmission output 2 Same as Retransmission output 1 scale low scale low 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 66 DO2 logic calculation Same as DO1 logic calculation selection selection doLG3 DO3 logic calculation Same as DO1 logic calculation selection selection doLG4 DO4 logic calculation Same as DO1 logic calculation selection selection 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 67 This is the first parameter symbol of Fn42 Function block No. 42 EVA2 Event 2 assignment Same as Event 1 assignment Event 2 type Same as Event 1 type EHo2 Event 2 hold action Same as Event 1 hold action 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 68 0: 0% when power is restored 1: Output limiter low 2: Status immediately before power cut MVTS Manual manipulated 0: The last manipulated output value output value selection (Balanceless-bumpless function) 1: Manual manipulated output value 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 69 Input 1_Output change 0.0 to 1000.0%/seconds of manipulated rate limiter (up) [heat- output side] 0.0: OFF 1. ORd Input 1_ Output change 0.0 to 1000.0%/seconds of manipulated rate limiter (down) [heat- output side] 0.0: OFF 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 70 Not displayed when "Pressure control operation [MC-(V)COS(R)]" is selected in "Input 1_Control action". Displayed when "Cascade control" is selected in "Select function for Input 2" AND a setting other than "Pressure control operation [MC-(V)COS(R)]" is selected in "Input 1_Control action". 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 71 2. L P I D Input 2_Level PID action 0: Switching by Memory area number selection 1: Switching by Set value (SV) (Level PID action) 2: Switching by Measured value (PV) (Level PID action) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 72 G): 0.00 to 99.99 Control Coefficient F = 1 (barg): 0.00 to 99.99 action: 0 Coefficient F = 2 (psig): 0.0 to 999.9 Coefficient F = 3 (kPaG): 0 to 9999 When “7” is 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 73 Input 1_No. of corrective 0 to 99 times (99: unlimited times) 1. Pc1 actions Input 1_Corrective action 0: Yes 1. Pc2 repeat 1: No Input 1_Corrective actions 0: Yes 1. Pc3 for ramp control 1: No 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 74 When Input 2_Control action is set to 3 to When a limiter setting other than “7” is Input 2_Input range low to Input 2_Input range high selected in When Input 2_Control action is set to 8: Input 2_ 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 75 Input 2_Corrective action 0: Yes 2. Pc2 repeat 1: No Input 2_Corrective actions 0: Yes 2. Pc3 for ramp control 1: No Input 2_Lower range of 0.0 to 105.0% 20.0 2. oLb corrective action amount 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 76 (master-side) 1: Load factor adjustment (AT: 2 cycles) inputs: 0 V/I inputs: 1 SLV. AT Cascade_AT mode 0: Easy adjustment (AT: one cycle) TC/RTD (slave-side) 1: Load factor adjustment (AT: 2 cycles) inputs: 0 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 77 Displayed when Communication function is supplied. Data bit configuration table Set value Data bit Parity bit Stop bit Set value Data bit Parity bit Stop bit Without Without Without Without Even Even Even Even : Not settable for Modbus 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 78 [Varies with the setting of the Decimal select: PV point position.] select input range high) 1. SLL Input 1_Setting limiter low Input 1_Input range low to Input 1_Setting Input 1_ limiter high Input range 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 79 Use the UP or DOWN key to scroll the display horizontally (left or right).   00000  Instrument number Instrument number is displayed. monitor The serial number of the instrument is displayed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 80: Parameters That Are Initialized/Modified When Settings Are Changed

     Communication protocol Engineering Mode Function block No. 60  Register type Engineering Mode Function block No. 62  Soak time unit Engineering Mode Function block No. 70  Initialization Engineering Mode Function block No. 91 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 81 Input 1_Derivative time [cool-side] 1. db Input 1_Overlap/Deadband TC/RTD inputs: 0 V/I inputs: 0.0 1. SVRU Parameter Input 1_Setting change rate limiter group No. 70 (up) 1. SVRd Input 1_Setting change rate limiter (down) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 82 Input 1_SV monitor value, and Remote setting input value: Input 1_Input range high (Control with PV select: PV select input range high) Input 1_Deviation: (Input 1_Input span) Measured value (PV) of differential temperature input: 100 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 83 * No function, Control with PV select, 2-loop control/Differential temperature control, or Cascade control. 7. Retransmission output is "No retransmission output," "Input 1_Measured value (PV)", "Input 1_Set value (SV)", "Input 1_Deviation," "Input 1_Remote setting input value," OR Measured value (PV) of differential temperature input. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 84 Input 1_Level PID setting 6  1.LEV7 Input 1_Level PID setting 7 1. ATb Setting Input 1_AT bias  group No. 53 1 1.EXDJ Setting Input 1_Determination point of external  group No. 57 disturbance 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 85 Input 1_ Maximum value of input range Others: 100 2.PGSL ･TC/RTD inputs Input 2_Input range low Input 2_Minimum value of input range ･V/I inputs Remote setting input: Input 1_Minimum value of input range Others: 0 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 86 4. Retransmission output is "No retransmission output," "Input 1_Measured value (PV)," "Input 1_Set value (SV)," "Input 1_Deviation," "Input 1_Remote setting input value," OR Measured value (PV) of differential temperature input. 4.1.3 When Input 1_Decimal point position (1.PGDP) is changed [Engineering 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 87 V/I inputs: 0.1 2. OHL Input 2_ON/OFF action differential gap  (lower)  2. SVRU Parameter Input 2_Setting change rate limiter (up) group No. 70 2. SVRd Input 2_Setting change rate limiter  (down) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 88 Input 2_Input range high  (Input 2_5 % of input  (high) span) 2. P U N Input 2_Input error determination point Input 2_Input range low  (Input 2_5 % of input  (low) span) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 89  Input 1_Manual reset 1. FF  Input 1_FF amount 1. OHH Input 1_ON/OFF action differential gap TC/RTD inputs: 1  (upper) V/I inputs: 0.1 1. OHL Input 1_ON/OFF action differential gap  (lower) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 90 2. MCdb Input 2_Dead band See Table 1 in 3.7.3 Function Input 2_Valve coefficient F MC-COS(R) control: 3 Engineering block No. 54 MC-VCOS(R) control: 10 mode 2. P r L Input 2_Pressure (Temperature) limiter 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 91 Initial value AHS2 Same as Retransmission output 1 Engineering Function Retransmission output 2 scale high scale high Mode block No. 32 ALS2 Same as Retransmission output 1 Retransmission output 2 scale low scale low 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 92 Process action: max. Engineering Function Event 3 hold action EHo3 Mode block No. 43 Event 3 differential gap Deviation, Process and SV: TC/RTD inputs: 2 V/I inputs: 0.2 MV: 0.2 Event 3 timer EVT3 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 93 The following parameters will be initialized. Mode Items Symbol Initial value Engineering Function Device address Original communication: 0 Mode block No. 60 Modbus: 1 PLC communication: 0 Data bit configuration MP.REG Function Register type block No. 62 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 94: Parameters To Be Automatically Converted

     Input 1_Level PID setting 5 Setup Setting Mode Setting group No. 51  Input 1_Level PID setting 6 Setup Setting Mode Setting group No. 51  Input 1_Level PID setting 7 Setup Setting Mode Setting group No. 51 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 95  Input 2_Level PID setting 7 Setup Setting Mode Setting group No. 52  Input 1_Pressure (Temperature) Limiter Engineering Mode Function block No. 53  Input 2_Pressure (Temperature) Limiter Engineering Mode Function block No. 54 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 96 Input range Setting range 0 °C 100 °C 800 °C 1372 °C Setting limiter Setting limiter high 400 °C Input range Change Setting range 0.0 °C 100 °C 400 °C Setting limiter Setting limiter high 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 97  1.PHLd Setting group No. 91 Input 1_Peak hold monitor  1.bHLd Input 1_Bottom hold monitor 1.PGSH  Function block No. 21 Input 1_Input range high Engineering 1.PGSL  Mode Input 1_Input range high 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 98 If the control action is set to “Heating/Cooling PID control,” the data of the following parameter will be automatically converted. Mode Items Symbol 1. M. M V Setup Setting Mode Setting group No. 51 Input 1_Manual manipulated output value 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 99 Input 2_Determination point of external disturbance SLV.P Setting group No. 58 Cascade_Proportional band (master-side)  C.SCH Cascade_Scale high  C.SCL Cascade_Scale low  2.PHLd Input 2_Peak hold monitor Setting group No. 91  2.bHLd Input 2_Bottom hold monitor 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 100 Event 4 set value (EV4) [high] EV4` Event 4 set value (EV4’) [low] 1. P Input 1_Proportional band [heat-side] 1.OHH Parameter group No. 51 Input 1_ON/OFF action differential gap (upper) 1.OHL Input 1_ON/OFF action differential gap (lower) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 101 OR Measured value (PV) of differential temperature input. 7. "Pressure control operation [MC-(V)COS(R)]" is selected in "Input 2_Control action". 8. "Pressure control operation [MC-(V)COS(R)]" or "Temperature control operation [MC-(V)COS(R)]" is selected in "Input 2_Control action". 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 102 Input 1_Level PID setting 1 1.LEV2 Input 1_Level PID setting 2 1.LEV4 Input 1_Level PID setting 4 1.LEV5 Input 1_Level PID setting 5 1.LEV6 Input 1_Level PID setting 6 1.LEV7 Input 1_Level PID setting 7 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 103 Input 2_Level PID setting 2 2.LEV3 Input 2_Level PID setting 3 2.LEV4 Input 2_Level PID setting 4 2.LEV5 Input 2_Level PID setting 5 2.LEV6 Input 2_Level PID setting 6 2.LEV7 Input 2_Level PID setting 7 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 104 Input 2_Level PID setting 1 2.LEV2 Input 2_Level PID setting 2 2.LEV3 Input 2_Level PID setting 3 2.LEV5 Input 2_Level PID setting 5 2.LEV6 Input 2_Level PID setting 6 2.LEV7 Input 2_Level PID setting 7 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 105 4.2.25 When Input 2_Pressure (Temperature) limiter (2.PrL) is changed [Engineering mode: Function block No. 54] The following parameters will be automatically converted. Mode Items Symbol 2. M. M V Setup Setting Mode Setting group No. 52 Input 2_ Manual manipulated output value 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 106: Input Function

    (The input range specified when ordered can be changed by setting the input range high and low.) Example of input change 1: Changing thermocouple K “-200.0 to +1372.0 C” to “0.0 to 400.0 C” 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 107 +100.00 °C. Accordingly setting beyond this range is not possible. Example of input change 3: In the case of Voltage input (1 to 5 V DC), the input range has been reduced from “0.0 to 100.0” to “0.0 to 50.0.” 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 108 * High voltage input: 0 to 10 V DC, 0 to 5 V DC, 1 to 5 V DC, 0 to 1 V DC, 10 to 10 V DC, 5 to 5 V DC Low voltage input: 0 to 100 mV DC, 0 to 10 mV DC 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 109 Input 2_Decimal point position [Engineering Mode: Function block No. 22 (Fn22)] Parameter symbol Data range Factory set value 2. P Gd P 0: No decimal place Same as Input 1_Decimal 1: One decimal place point position 2: Two decimal places 3: Three decimal places 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 110 When 3 to 7 (pressure control operation [MC-(V)COS(R)]) is set to Input 2_Control action, the set value for the parameter should be entered with the same pressure unit selected for Input 2_Valve coefficient F. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 111 One decimal place -50 to +1768 C -58 to +3214 F No decimal place -50.0 to +1768.0 C -58.0 to +3214.0 F One decimal place -50 to +1768 C -58 to +3214 F No decimal place 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 112 Thermocouple (TC) input Input No. of Input No. of Code Range Code Range type digits** type digits** 0 to 200 C -199.9 to +400.0 C 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 113 0 to 1 V DC range 4 to 20 mA DC range -199999 to +99999 -19999 to +99999 0 to 5 V DC -10 to +10V DC 0 to 10 V DC -5 to +5 V DC 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 114 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 115: Switching Functions Using Digital Inputs (Di)

    ) are used for switching the Memory area and not settable. Explanation of functional setting RUN/STOP: RUN/STOP transfer AUTO/MAN (1/2): Auto/Manual transfer (Common to Input 1/Input 2) AUTO/MAN (1): Auto/Manual transfer (Input 1 only) AUTO/MAN (2): Auto/Manual transfer (Input 2 only) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 116 Unlock Direct/Reverse action transfer Direct action Reverse action Only one of the functions is available When “1: Switch by signal” is selected in Function block No. 58: Selection of PV select trigger (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 117 Interlock Interlock state Interlock release Peak/Bottom hold Peak/Bottom hold state Peak/Bottom hold release After the contact is transferred, it takes “up to 200 ms” until the action of NOTE this instrument is actually selected. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 118             : Open : Closed : DI1 is 15 : DI1 is either 16 or 17 : DI1 is either 18 or 19 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 119 To perform an Area jump “Digital input 1 (DI1) Close edge” or “Digital input 1 (DI1) Open edge,” or both of these must be selected in Select Trigger type for Memory area transfer (Parameter setting mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 120 Setting via front keys Setting via or through Instrument status Digital Input (DI) communication Remote mode Remote mode Remote mode Local mode Priority to Local Remote mode Local mode Local mode mode Local mode 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 121 3: Input 1_Auto/Manual transfer 4: Input 2_Auto/Manual transfer 5: Remote/Local transfer (Cascade mode transfer, PV select transfer, 2-loop control/Differential temperature control) 6: Interlock release 7: Hold reset (Common to Input 1 and 2) 8: Input 1_Hold reset 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 122 DI6 function selection [Engineering mode: Function block No. 23 (Fn23)] ● Parameter symbol Data range Factory set value D I S L6 Same as DI2 function selection “DI6 function selection” will not be displayed when the optional communication function is selected. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 123 EXT: External mode To display “Control area Local/External transfer”, choose “15, 16, or 18” in DI1 function selection. When “External mode” is set in “Control area Local/External transfer,” control area cannot be switched via key operations. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 124  Press SET and <MODE keys simultaneously to return to the Measured value (PV)/Set value (SV) Monitor. (The MONI key may be pressed to return to the Measured value (PV)/Set value (SV) Monitor)  Select RUN on the RUN/STOP transfer.  Select lock on the Set data unlock/lock transfer. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 125: Correcting Input

    SC-F71 [A]: 200 C SC-F71 [B]: 198 C To correct the Measure value (PV) of SC-F71 [B], add bias of 2 C by PV bias: Displayed value  Measured value (PV)  PV bias  198 C  2 C  200 C 200 °C...
  • Page 126 When Remote setting input is supplied, it is displayed as PV ratio. Input 2_Input type is not displayed when “No function” is selected in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 127 Next parameter is displayed. < Press MODE keys simultaneously to return to the Measured value (PV)/Set value (SV) Monitor. (The MONI key may be pressed to return to the Measured value (PV)/Set value (SV) Monitor.) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 128: Preventing The Input Flicker

    When Remote setting input is supplied, it is displayed as RS digital filter. Input 2_Input type is not displayed when “No function” is selected in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 129: Inverting The Input

    Reverse setting (Input range high < Input range low) of Input range high and low is not available on the instrument. However, with the Input invert function, the display relation to the input can be inverted. Example: with/without invert function for voltage input 0 to 5 V 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 130 To display “Input 2_Inverting input”, choose “Current” or “Voltage” in Function block No. 22: Input 2_Input type (Engineering mode). Not displayed when “No function” or “Remote setting input” is selected in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 131 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 132: Extracting Square Root Of Input

    To display “Input 1_Square root extraction”, choose “Current” or “Voltage” in Function block No. 21: Input 1_Input type (Engineering mode), AND choose “0 to 2” in Function block No. 51: Input 1_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 133 AND choose “1: Used” in Function block No. 22: Input 2_Square root extraction (Engineering mode). Not displayed when “No function” or “Remote setting input” is selected in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 134 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 135: Changing Error Handling At Input Error

    RTD input: Upscale High voltage/Current inputs: Downscale (Indicates value near 0) Refer to the Input range table for the input range of each input. Refer to 6.1 Changing Output Assignment for Input error status output. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 136 Input 1_Action input error. Input 1_Action input error. Manipulated output Input 1_Manipulated output Input 1_Manipulated output Input 1_Manipulated output value at input error value at input error value at input error value at input error 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 137 When the Input 2 is used: Action selected for Input 1_Action input No Action at input error error. Manipulated output value at input Input 1_Manipulated output value at Input 1_Manipulated output value at error input error input error 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 138 (0 to 100 mV DC, 0 to 10 mV DC)” in Function block No. 22: “Input 2_Input type” (Engineering mode), AND choose “0, 1, 2, 8 or 9” in Function block No. 51: Input 1_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 139 PID control. To display “Input 2_Action (high) input error”, choose “2-loop control/Differential temperature input” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 140 Factory set value 2. PS M -5.0 to +105.0% -5.0 To display “Input 2_Manipulated output value at input error”, choose “2-loop control/Differential temperature control” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 141 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 142: Using Dual Input Function

     Input circuit error alarm function The instrument uses two inputs to detect an error from the difference in input between the two. Refer to 7.7 Preventing Control with Input Errors (Input Circuit Error Alarm).. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 143 Heating/Cooling control: 0 to 3, 6 Refer to 4. Parameters that are Initialized/Modified when Setting is Changed for the parameters that are initialized or changed when the Select function for Input 2 is changed. Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 144: Output Function

    6.1 Changing Output Assignment [Control Output, Retransmission Output, Logic Calculation (Event) Output, Instrument Status Output] SC-F71 has such hardware outputs of OUT1 to 3 (3 points) and DO1 to 4 (4 points) as shown below. The following output signals are assigned to each output terminal.
  • Page 145  FAIL output: Output turns on when the instrument is in FAIL state. When FAIL is selected, the output terminal is fixed to de-energizing, and the previous setting of energizing and de-energizing will be unavailable. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 146 Under the conditions of an available Input circuit error alarm, when the Measured value of Input 2 goes over the Set value of the Input circuit error alarm and the measured value of Input 1, the Input error high alarm of Input 1 will turn on. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 147 Enter “1” to output Event 1, “2” for Event 2, “4” for Event 3, and “8” for Event 4. Add the sum of these numbers (15), then the outputs of Event 1 to 4 are produced as a logical OR. [Setup procedures] 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 148 Energized/De-energized selection calculation selection” and “DO1 (2, 3, 4) logic (Multiple selection is available) calculation selection.” All outputs are energized OUT1 de-energized OUT2 de-energized OUT3 de-energized DO1 de-energized DO2 de-energized DO3 de-energized DO4 de-energized 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 149 10: Output of the communication monitoring result 11: FAIL output 12: Output Input 1_Control error state 13: Output Input 2_Control error state Available only when “Pressure control operation [MC-(V)COS(R)] is selected in “Control action”. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 150 Same as OUT1 logic calculation selection  DO3 logic calculation selection [Engineering Mode: Function block No. 34 (Fn34)] Parameter symbol Data range Factory set value dO L G3 Same as OUT1 logic calculation selection 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 151  DO4 logic calculation selection [Engineering Mode: Function block No. 34 (Fn34)] Parameter symbol Data range Factory set value dO L G4 Same as OUT1 logic calculation selection Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 152: Changing Output Type Of Out3

    2: Current output (0 to 20 mA DC) Refer to “4. Parameters that are Initialized/Modified when Setting is Changed” for the parameters that are initialized when the Universal output type selection (OUT3) is changed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 153 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 154: Using Retransmission Output

    Input 2_Measured value (PV)] is output. Available when “Remote setting input” is selected in Select function for Input 2. The output will be 0% when the Retransmission output type not provided on the instrument is set. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 155 12: Remote setting input value 13: Measured value (PV) of differential temperature input Refer to “4. Parameters that are Initialized/Modified when Setting is Changed” for the parameters that are initialized when the Retransmission output 1 type is changed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 156 Factory set value AO 2 Same as Retransmission output 1 Refer to “4. Parameters that are Initialized/Modified when Setting is Changed” for the parameters that are initialized when the Retransmission output 2 type is changed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 157 Same as Retransmission output 1 scale low Same as Retransmission output 1 scale low To display “Retransmission output 3 scale low”, choose “Current output” in Function block No. 30: Universal output type selection” (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 158 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 159: Changing Proportional Cycle Time

    OFF output is below 100%.) Minimum ON/OFF time of proportioning cycle is not operative if the Proportioning cycle is set shorter than the Minimum ON/OFF time of proportioning cycle (Proportioning cycle  Minimum ON/OFF proportioning time). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 160 MODE keys simultaneously to return to ON/OFF time of proportional cycle the Measured value (PV)/Set value (SV) Monitor. (The key may be pressed to return to the MONI Measured value (PV)/Set value (SV) Monitor.) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 161: Changing Energizing/De-Energizing Output

    Factory set value EX C 0 to 127 0: All outputs are energized +1: OUT1 de-energized +2: OUT2 de-energized +4: OUT3 de-energized +8: DO1 de-energized +16: DO2 de-energized +32: DO3 de-energized +64: DO4 de-energized 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 162: Limiting Output

    To select two or more functions, sum each value. 6.6 Limiting Output Use output limiter to limit the output. Description of function This is the function which restricts the high and low limits of Manipulated output values (MV). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 163 “Cascade control” in Function block No. 58: Select function for Input 2 (Engineering mode). Refer to “4. Parameters that are Initialized/Modified when Setting is Changed” for the parameters that are automatically converted when the Input 2_Output limiter low is changed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 164 Function block No. 51: Input 1_Control action (Engineering mode). Refer to “4. Parameters that are Initialized/Modified when Setting is Changed” for the parameters that are automatically converted when the Input 1_Output limiter low [cool-side] is changed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 165 Next parameter is displayed. Press and < MODE keys simultaneously to return to the Measured value (PV)/Set value (SV) Monitor. (The MONI key may be pressed to return to the Measured value (PV)/Set value (SV) Monitor.) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 166: Suppressing Sudden Change In Output (Output Change Rate Limiter)

    The Output change rate limiter will be unavailable when control is stopped (at STOP), when control action is an ON/OFF control or MC-(V)COS(R) Pressure control operation. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 167 1. o RD c 0.0 to 1000.0%/seconds of manipulated output 0.0: OFF To display “Input 1_Output change rate limiter (down) [cool-side]”, choose “Heating/Cooling PID control” in Function block No. 51: Input 1_Control action (Engineering mode) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 168 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 169: Suppressing Sudden Change In Output (Balanceless Bumpless)

     Bumpless action associated with Auto/Manual transfer at the time of memory area selection This instrument allows Auto/Manual transfer at the time of Memory area selection. Selection of balanceless bumpless action and bump action can be made at the time of Auto/Manual transfer. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 170  Input 1_Output limiter low [cool-side] is greater than 0.0%: -(Input 1_Output limiter high [cool-side]) to -(Input 1_Output limiter low [cool-side]) (3) Fixed at 0.0% in the following cases: Input 1_Output limiter high [cool-side] less than or equal to 0.0%, AND Input 1_Output limiter high [heat-side] less than or equal to 0.0% 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 171 (bump) is selected in Input 2_Auto/Manual transfer selection (Area)] To display “Input 2_Manipulated output value (Area)”, choose “2-loop control/Differential temperature control” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 172 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 173: Changing The Output Action While In Control Stop Mode

    For example, this combination is not available: Event 1: Continue to output even while in Control stop. Event 2: Output to be stopped. Selection can be made in the unit of Retransmission output, Logic operation output, Instrument status output. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 174 Factory set value 1. R MV c -5.0 to +105.0% -5.0 To display “Input 1_Manipulated output value at STOP [cool-side]”, choose “Heating/Cooling PID control” in Function block No. 51: Input 1_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 175 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 176: Monitoring Manipulated Output Value

    500 . (Several times) In case of Input 2_Manipulated two inputs output value monitor 2. MV MODE 500 . The MONI key may be used instead. The R.SET key may be used to return. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 177: Event Function

    Refer to 7.1.5 Preventing event from turning on due to a transient abnormal input for Event timer. Set the Event set value. Set the Event set value Refer to 7.1.7 Changing the event set value for event set value. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 178 Event 1 assignment is changed.  Event 2 assignment [Engineering Mode: Function block No. 42 (Fn42)] Parameter symbol Data range Factory set value EV A 2 1: Input 1 2: Input 2 3: Differential temperature input 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 179 “Cascade control” in Function block No. 58: Select function for Input 2 (Engineering mode). Refer to “4. Parameters that are Initialized/Modified when Setting is Changed” for the parameters that are initialized when the Event 4 assignment is changed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 180 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 181 Local SV type The Event set value is set for the Set value (SV) [Local SV]. Local SV: Local SV is displayed in the Measured value (PV)/Set value (SV) screen (Monitor & SV setting mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 182 Limiter) for the Setting change rate limiter. Some examples of Deviation high are described in the following: Deviation high: When the deviation (PV – SV) is more than the Event set value, the event ON occurs. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 183 ON occurs. Low action: When the deviation (PV – SV) is more than the Event set value [low], the event ON occurs. (Without High/Low individual setting) (With High/Low individual setting) High High 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 184 OFF: Event action turned off (: Set value (SV) : Event set value ☆: Event differential gap) SV high When the Set value (SV) is more than the Event set value, the event ON occurs. High 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 185 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 186 When a Manipulated output value (MV) reaches the Event set value, the event ON occurs. ON: Event action turned on OFF: Event action turned off (: Set value (SV) : Event set value ☆: Event differential gap) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 187 Factory set value ES 2 Same as Event 1 type Refer to “4. Parameters that are Initialized/Modified when Setting is Changed” for the parameters that are initialized when the Event 2 type is changed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 188 Hold action will be cancelled when Measured value (PV) is in the Event status OFF area  When the power is turned on  When transferred from STOP (control STOP) to RUN (control RUN) [Example] Difference between with and without hold action for deviation low 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 189 EH O 2 0: Hold action OFF 1: Hold action ON 2: Re-hold action ON Setting hold or re-hold action on the event that is not available with hold and re-hold actions will just be ignored. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 190  Event 2 differential gap [Engineering Mode: Function block No. 42 (Fn42)] Parameter symbol Data range Factory set value EH 2 Same as Event 1 differential gap Deviation, Process and SV: TC/RTD inputs: 2 V/I inputs: 0.2% of input span MV: 0.2 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 191 The Event timer is also activated for the following reasons:  When set to the event state simultaneously with power turned on  When set to the event state simultaneously with control changed to RUN (control start) from STOP (control stop). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 192 Since the Set value for Event 1 to 4 are included in the Memory area, up to 16 data can be stored per parameter. Refer to the the SC-F71 Quick Start Guide (172-65706M) or Instruction Manual [Hardware] (172-65709M) for how to set Event set values.

  • Page 193: Checking Event On State

    EVT1: Event 1 EVT2: Event 2 EVT3: Event 3 EVT4: Event 4 In1. UP: Input 1_Input error high In1. dn: Input 1_Input error low In2. UP: Input 2_Input error high In2. dn: Input 2_Input error low 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 194: Keeping The Event State (Interlock Function)

    4: Event 3 8: Event 4 16: Input 1_Input error high 32: Input 1_Input error low 64: Input 2_Input error high 128: Input 2_Input error low To select two or more functions, sum each value. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 195: Releasing The Event State (Interlock Release)

    Measured value (PV) is out of the event zone after it enters the event zone once. The Interlock may be released by Digital input (DI) and Communication (optional) as well as key operation. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 196 Refer to 5.2 Switching Functions Using Digital Inputs (DI) for Interlock release through Digital input (DI). Refer to the SC-F71 Instruction Manual [Host Communication] (172-65711M) for Interlock release through Communication. Parameter setting  Interlock release[Monitor & SV Setting Mode]...

  • Page 197: Preventing Control With Input Errors (Input Circuit Error Alarm)

    Compensating cable   Input 1 Input 2 Parallel connection Voltage input Current input     Signal Signal Input 1 Input 2 Input 1 Input 2 source source Parallel connection Series connction 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 198 [Varies with the setting of the Decimal point position.] Input span To display “Input circuit error alarm set value”, choose “Input circuit error alarm” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 199 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 200: Control Function

    Operation when transferred to RUN from STOP is in accordance with the Hot/Cold start selection setting. Refer to 8.19 Changing the Action at Power ON (Hot/Cold Start) for Hot/Cold start. Refer to the SC-F71 Instruction Manual [Host communication] (172-65711M) for RUN/STOP switching by communication (optional). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 201 To switch the RUN/STOP using the Digital Input (DI), use “DI function selection” in Function block No. 23 (Engineering mode). Refer to 5.2 Switching Functions Using Digital Inputs (DI) for the Digital input (DI) assignment. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 202: Changing Control Action

     MC-COS(R)/MC-VCOS(R) Temperature control When the control mode is set to Cascade control which uses two measured inputs, the selectable control action is limited to “PID control (direct action),” “PID control (reverse action),” or “ON/OFF action.” 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 203 Refer to 8.6 Controlling with ON/OFF Action for ON/OFF action. Heating/Cooling PID control In Heating/Cooling control, only one controller enables heating and cooling control. Refer to 8.7 Controlling with Heating/Cooling Action for Heating/Cooling PID control. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 204 MC-COS(R)/MC-VCOS(R) Pressure control Pressure control performed in combination with the TLV control valve for steam, MC- COS/MC-VCOS series. By controlling the steam pressure with TLV proprietary algorithms that utilizes the characteristics of the COS (VCOS) series, accuracy and responsiveness that exceeds conventional control valves can be achieved.
  • Page 205 5: Pressure control operation [MC-COS(R)-16, 65 to 150 mm] 6: Pressure control operation [MC-COS(R)-21] 7: Pressure control operation [MC-VCOS(R)] 8: Temperature control operation [MC-COS(R)-16] 9: Temperature control operation [MC-VCOS(R)] 2: n/a For cascade control, only 0 or 1 are selectable. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 206 “Cascade control” in Function block No. 58: Select function for Input 2 (Engineering mode), AND choose a setting other than “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.52: Input 2_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 207 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 208: Setting Pid Values Automatically (Autotuning)

    (Display range: 0 hours 00 minutes to 48 hours 00 minutes) The SV display shows “TCAL” from the start of Autotuning (AT) till the display of the remaining time. Once the remaining time is displayed, the time is reduced every minute. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 209 PID values manually. Manual setting of PID values may also be necessary if the set value is around the ambient temperature or is close to the maximum temperature achieved by the load. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 210 To display “Input 1_Autotuning (AT)”, choose a setting other than “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.51: Input 1_ Control action (Engineering mode).  Input 2_Autotunning (AT) [Operation Transfer Mode] Parameter symbol Data range Factory set value 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 211 Differential temperature control” in Function block No. 58: Select function for Input 2 (Engineering mode), AND choose a setting other than “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.52: Input 2_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 212 AT start MODE In case of two inputs Input 2_ Autotuning (AT) 2.ATU 2.ATU MODE MODE Set Autotuning AT start Aborting Autotuning (AT) Input 1_ Input 2_ Autotuning (AT) Autotuning (AT) 1.ATU 1.ATU 2.ATU 2.ATU 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 213 Next parameter is displayed. < Press keys simultaneously to return to the MODE Measured value (PV)/Set value (SV) Monitor. (The key may be pressed to return to the Measured MONI value (PV)/Set value (SV) Monitor.) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 214: Setting Pid Values Automatically (Startup Tuning)

    STOP to RUN, the control will start with Hot start 2 even if the setting is Hot start 1. Refer to 8.19 Changing the Action at Power ON (Hot/Cold Start) for Hot/Cold start setting. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 215 Startup tuning (ST) is executed at Set value (SV) change.  When Startup tuning (ST) is started at power on, priority is given to Startup tuning (ST) and the Proactive function will not start. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 216 Function block No. 58: Select function for Input 2 (Engineering mode), AND choose a setting other than “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.52: Input 2_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 217 Function block No. 58: Select function for Input 2 (Engineering mode) AND choose a setting other than “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.52: Input 2_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 218 Before starting ST, refer to Requirements for Startup tuning (ST) start. Make sure that all required conditions to start ST are satisfied. Startup tuning can be started in the following manner (started in the manner that satisfies the starting condition). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 219: Setting Pid Values Manually

    Manipulated output value (MV) is gradually reduced. The Measured value (PV) stabilizes within the Proportional band at the equilibrium point, but in many cases the stabilized temperature does not match the Set value (SV). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 220 The longer the Derivative time is, the stronger the Derivative effect is, and the shorter the weaker. The Derivative effect, if set too strong, produces large Manipulated output (MV) against a small change of the Measured value (PV), thus causing hunting and resulting in unstable control. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 221 The sample here shows a general tendency. Control results depend on the controlled object and combinations of control constants. [Adjustment of Proportional band (P)] Setting the proportional band as small as possible enables the Set value (SV) to be reached faster without overshoot. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 222 “Cascade control” in Function block No.58: Select function for Input 2”, AND choose a setting other than “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.52: Input 2_Control action 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 223 To display “Input 1_Integral time [cool-side]”, choose “Heating/Cooling PID control” in Function block No.51: Input 1_Control action (Engineering mode). Additionally, a value other than 0 must also be entered in the Input 1_ Proportional band in the same memory area. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 224 To display “Input 1_Derivative time [cool-side]”, choose “Heating/Cooling PID control” in Function block No.51: Input 1_Control action (Engineering mode). Additionally, a value other than 0 must also be entered in the Input 1_ Proportional band in the same memory area. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 225: Controlling With On/Off Action

    Measured value (PV) whether it is above or below the Set value (SV). Description of function When the Measured value (PV) is above the Set value (SV), the Manipulated output value (MV) is turned OFF, and when the Measured value (PV) is below the Set value 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 226 Select any one from “2: Heating/Cooling PID control [water cooling]”, “3: Heating/ Cooling PID control [air cooling]”, or “4: Heating/Cooling PID control [Cooling linear type]” and set “0” at the Input 1_Proportional band [heat-side]. Then, the controller starts Heating/Cooling control with ON/OFF action. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 227 “Temperature control operation [MC-(V)COS(R)] is selected in Input 1_control action. To display “Input 1_Proportional band [heat-side]”, chose a setting other than “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No. 51: Input 1_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 228 “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No. 51: Input 1_Control action (Engineering mode). Additionally, a value 0 must also be entered in the Input 1_Proportional band [heat-side] in the same memory area. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 229 “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.52: Input 2_Control action (Engineering mode). Additionally, a value 0 must also be entered in the Input 2_Proportional band in the same memory area. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 230: Controlling With Heating/Cooling Control

    Overlap/Deadband below the Set value (SV) [setting on the negative side] generates an overlap of the heating and the cooling proportional bands. Setting this parameter above the Set value (SV) [setting on the positive side] generates a deadband. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 231 (MV) (MV) [heat-side] [cool-side] 100% 100% Heat-side Cool-side Heat-side Cool-side output value output value output value output value Temp. Temp. Set value (MV) Set value (MV) [dbPA] [dbPA] Deadband Overlap dbPA: Overlap/Deadband reference point 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 232 The undershoot suppression effect increases as a smaller value is set for the Undershoot suppression factor. The undershoot factor is small Set value (SV) The overshoot factor is large 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 233 (Pressure control operation [MC-(V)COS(R)])” in Function block No.51: Input 1_ Control action (Engineering mode). Additionally, a value other than 0 must also be entered in the Input 1_Proportional band in the same memory area. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 234 To display “Input 1_Derivative time [cool-side]”, choose “Heating/Cooling PID control” in Function block No. 51: Input 1_Control action (Engineering mode). Additionally, a value other than 0 must also be entered in the Input 1_ Proportional band [heat-side] in the same memory area. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 235  Overlap/Deadband reference point [Engineering Mode: Function block No. 56 (Fn56)] Parameter symbol Data range Factory set value d B PA 0.0 to 1.0 To display “Overlap/Deadband reference point”, choose “Heating/Cooling PID control” in Function block No.51: Input 1_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 236 Setting procedure  Selecting Heating/Cooling PID control 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 237: Using With Mc-Cos/Mc-Vcos

    Refer to 8.3 Setting PID Values Automatically (Autotuning) for Autotuning (AT). 8.8 Using with MC-COS/MC-VCOS The SC-F71 is the only controller that controls TLV steam control valves MC- COS/MC-COSR and MC-VCOS/MC-VCOSR series. MC-COS(R)/MC-VCOS(R) series combines an automatic pressure reducing valve with a control valve.
  • Page 238 3.38600 0.68948 Table 8-2-1 Correction factor of valve coefficient E New unit system kg/cm barg psig kPaG MPaG Current (F=0) (F=1) (F=2) (F=3) (F=4) unit system ─ kg/cm G (F=0) 0.98067 1.42230 0.98067 0.98067 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 239 Steam pressure supplied to the secondary side of the control valve can be controlled with the pressure control valve for steam MC-COS(R)/MC-VCOS(R) series. By controlling the steam pressure with TLV proprietary algorithms for pressure reducing valve for steam, COS (VCOS) series, accuracy and responsiveness exceeding normal control valves can be achieved.
  • Page 240 (attached) on the MC-(V)COS(R), which is also indicated on the valve coefficient tag when the equipment is new. To display “Input 1_Valve coefficient F”, choose “3 to 7 (Pressure control operation [MC-(V)COS(R)])” or “8 and 9 (Temperature control operation [MC- 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 241 To display “Input 1_Pressure (Temp) limiter”, choose “3 to 7 (Pressure control operation [MC-(V)COS(R)])” or “8 and 9 (Temperature control operation [MC- (V)COS(R)])” in Function block No.51: Input 1_Control action (Engineering mode).  Input 1_Return bias [Engineering Mode: Function block No. 53 (Fn53)] 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 242 -50.0 to 50.0% NOTE Do not change the factory set value. TLV engineers may change the value to adjust the controllability after checking the users’ applications and conditions. Unnecessary changes to values may affect controllability. Please contact TLV for details.
  • Page 243 1: No NOTE Do not change the factory set value. TLV engineers may change the value to adjust the controllability after checking the users’ applications and conditions. Unnecessary changes to values may affect controllability. Please contact TLV for details. To display “Input 1_Corrective actions for ramp control”, choose “3 to 7 (Pressure control operation [MC-(V)COS(R)])”...
  • Page 244  Input 2_Valve coefficient F [Engineering Mode: Function block No. 54 (Fn54)] Parameter symbol Data range Factory set value When Input 2_Control type is set to 3 to 6 or 8: Same as Input 1_Valve 0: kg/cm coefficient F (pressure unit) 1: barg 2: psig 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 245 7: 0 When Input 2_Control type is set to 8: When Input 2_Control type Valve coefficient is set to 7: Input 2_Input Coefficient F = 0 (kg/cm G): 0.00 to 99.99 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 246 -50.0 to 50.0% NOTE Do not change the factory set value. TLV engineers may change the value to adjust the controllability after checking the users’ applications and conditions. Unnecessary changes to values may affect controllability. Please contact TLV for details.
  • Page 247 0 to 99 times (99: unlimited times) NOTE Do not change the factory set value. TLV engineers may change the value to adjust the controllability after checking the users’ applications and conditions. Unnecessary changes to values may affect controllability. Please contact TLV for details.
  • Page 248 TLV engineers may change the value to adjust the controllability after checking the users’ applications and conditions. Unnecessary changes to values may affect controllability. Please contact TLV for details. To display “Input 2_Lower range of corrective action amount”, choose “2-loop control/Differential temperature control”...
  • Page 249 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 250 To display “Input 1_Valve coefficient A to E”, choose “3 to 7 (Pressure control operation [MC-(V)COS(R)])” or “8 and 9 (Temperature control operation [MC- (V)COS(R)])” in Function block No.51: Input 1_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 251 Parameter symbol Data range Factory set value 1. P ru N 0: C Product identification code 1: F specified at the time of order. To display “Input 1_Temperature limiter unit”, choose “9: Temperature control 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 252 -50.0 to 50.0% NOTE Do not change the factory set value. TLV engineers may change the value to adjust the controllability after checking the users’ applications and conditions. Unnecessary changes to values may affect controllability. Please contact TLV for details.
  • Page 253 When 0 (0.0, 0.00, 0.000) and Input 2_Pressure (Temp) Limiter function OFF [Varies with the setting of the Decimal point position when Input 2_Control action is a setting other than “8”.] To display “Input 2_Pressure (Temperature) limiter”, choose “2-loop control/ 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 254 -50.0 to 50.0% NOTE Do not change the factory set value. TLV engineers may change the value to adjust the controllability after checking the users’ applications and conditions. Unnecessary changes to values may affect controllability. Please contact TLV for details.
  • Page 255 “Cascade control” in Function block No. 58: Select function for Input 2 (Engineering mode), AND choose a setting other than “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.52: Input 2_ Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 256 Differential temperature control” or “Cascade control” in Function block No. 58: Select function for Input 2 (Engineering mode), AND choose a setting other than “3 to 7 (Pressure control operation [MC-VCOS(R)])” in Function block No. 52: Input 2_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 257 Setting procedure  Selecting control action and setting valve coefficient 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 258: Controlling With Manual Control

    The Auto/Manual transfer can be made by a key operation, Digital input (DI) or communication (optional). Refer to the SC-F71 Instruction Manual [Host communication] (172-65711M) for the Auto Manual transfer through communication. Refer to 6.8 Suppressing Sudden Change in Output (Balanceless Bumpless) for the Manipulated output value (balanceless bumpless) associated with the Auto/Manual transfer.
  • Page 259 The above switching action can be inverted (The functions at contact close and contact open can be swapped). This setting can be done at “DI logic invert.” For details, refer to 5.2 Switching Functions Using Digital Inputs (DI). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 260 - 20 0 . The Cooling side output value. When the Manual 50 0 . manual manipulated manipulated output value enters the output value negative range, the output is transferred to the Cooling side manual manipulated 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 261: Using Remote Setting Input

    The signal type of the Remote setting input can be set in Function block No. 22: Input 2_Input type (Engineering mode). Refer to the Instruction SC-F71 [Host communication] (172-65711M) for Remote/Local transfer through communication. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 262 280 . MODE 0 0 . (2 seconds (Several or more) times) Switch to Remote mode Monitor & SV setting mode PV/SV monitor 280 . MODE 30 0 . Remote setting input value 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 263 The above switching action can be inverted (The functions at contact close and contact open can be swapped). This setting can be done at “DI logic invert.” Refer to 5.2 Switching Functions Using Digital Inputs (DI) for details. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 264 Heating/Cooling control: 0 to 3, 6 Refer to “4. Parameters that are Initialized/Modified when Setting is Changed” for the parameters that are initialized or changed when the Select function for input 2 is changed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 265: Executing 2-Loop Control

    Description of function The 2-loop control enables two single loop control on a single instrument. Input 1 and Input 2 are independent from each other and setting must be done separately on each channel. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 266 The 2-loop control and the Differential temperature control are switchable. For the detail of the Differential temperature control, refer to 8.12 Executing Differential temperature control. Mode transfer  Selection by front key operation Transfer Differential temperature control to 2-loop control 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 267 Setting via front keys or Setting via Digital Input (DI) Instrument status through communication Differential temperature Differential temperature Differential temperature control control control 2-loop control Differential temperature 2-loop control 2-loop control control 2-loop control 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 268: Executing Differential Temperature Control

    The Input 1_Monitor Set value (SV)* of is used in actual control. * Input 1_Monitor Set value (SV) = Controlled temperature = Input 2_Measured value (PV) [Reference temperature] + Set value of Differential temperature input 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 269 Switch to Differential temperature control Monitor & SV setting mode PV/SV monitor 280 . MODE Measured value (PV) of differential temperature input 0 0 . Set value (SV) of differential temperature input 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 270 To display “Set value (SV) of differential temperature input”, choose “2- loop/Differential temperature control” in Function block No. 58: Select function for Input 2 (Engineering mode) and switch to “Differential temperature control” in “Remote/Local transfer”. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 271 Heating/Cooling control: 0 to 3, 6 Refer to “4. Parameters that are Initialized/Modified when Setting is Changed” for the parameters that are initialized or changed when the Select function for input 2 is changed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 272: Executing Control With Pv Select

    (for low temperature range as PV1) and Input 2 (for high temperature range as PV2). Parameters on the Input 1 are used for control computation. Output is also provided on the Input 1 side as Manipulated output 1 (MV1). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 273 Setting limiter Input 2_PV bias Input 1_PV bias Input 1_Setting Control with PV select change rate limiter PID calculation Input 1_Output limiter Manipulated output 1 (MV1) Input 1_Output change rate limiter Output assignment Output 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 274 At temperature fall: PV2 to PV1 PV select Measured value (PV)  When PV1 is smaller than PV2 When the PV select transfer time is set When the PV select transfer time is not set (Set value: 0.0) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 275 Refer to the SC-F71 Instruction Manual [Host communication] (172-65711M) for the input switchover through communication. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 276 Switching the input with Digital Input (DI) Legend Input 1 (PV1) Input 2 (PV2) PV select Measured value (PV) When the PV select transfer time is set When the PV select transfer time is not set (Set value: 0.0) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 277 The “PV select input span”, the “PV select input range high” and the “PV select iput range low” mean “Input span”, “Input range high” and “Input range low” at the time of Control with PV select respectively. The setting range is as follows. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 278 When “Control with PV select” is set to Select function for Input INP1 INP1: Input 1 INP2: Input 2 To display “Remote/Local transfer” (Control with PV select), choose “Control with PV select” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 279 0: Switching by level 1: Switching by signal (Key, DI and Communication) To display “Selection of PV select trigger”, choose “Control with PV select” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 280 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 281: Executing Cascade Control

    Slave to bring the measured value of the controlled object to the target value. On the SC-F71, Input 1 can be assigned to the Master and Input 2 to the Slave respectively to conduct Cascade control on a single instrument. The use of Autotuning (AT) exclusively designed for the Cascade control allows the PID values of both the Master and the Slave to be calculated.
  • Page 282 (PID values of Input 1) Output To switch between “Cascade control” and “Master single control”, choose “Cascade control (Master single ↔ Cascade)” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 283 (PID values of Input 2) Output To switch between “Cascade control” and “Slave single control”, choose “Cascade control (Slave single ↔ Cascade)” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 284     Note adjustment Slave (AT once) single Load factor control       Note adjustment (AT twice)  : Not calculated  : Calculated Note: Setting is ignored. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 285 To switch the Remote/Local (Cascade control) using the Digital Input (DI), use “DI function selection” in Function block No. 23 (Engineering mode). Refer to 5.2 Switching Functions Using Digital Inputs (DI) for the Digital input (DI) assignment. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 286 “Temperature control operation [MC-(V)COS(R)] is selected in Input 1_control action. To display “Input 1_Proportional band [heat-side]”, choose a setting other than “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.51: Input 1_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 287 Data range Factory set value 0 to 3600 seconds, 0.0 to 3600.0 seconds or 0.00 to 360.00 seconds 0 (0.0, 0.00): PD action [Varies with the setting of the Integral/Derivative time decimal point position.] 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 288 0 (0.0, 0.00): PI action [Varies with the setting of the Integral/Derivative time decimal point position.] To display “Cascade_Derivative time (master-side)”, choose “Cascade control” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 289 Input 2_Setting limiter low to Cascade_Scale high Input 2_Setting limiter low [Varies with the setting of the Decimal point position.] To display “Cascade_Scale low”, choose “Cascade control” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 290 0: Easy adjustment (AT: one cycle) TC/RTD inputs: 0 1: Load factor adjustment (AT: 2 cycles) V/I inputs: 1 To display “Cascade_AT mode (slave-side)”, choose “Cascade control” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 291 Setting procedure Calculating the PID values for Cascade control (Slave single  Cascade) using AT  Cascade control related setting 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 292 Next parameter is displayed. Press and < MODE keys simultaneously to return to the Measured value (PV)/Set value (SV) Monitor. (The MONI key may be pressed to return to the Measured value (PV)/Set value (SV) Monitor.) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 293  Checking PID values 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 294: Controlling With Level Pid

    Measured value (PV)  Level PID setting 2 group 2 area 2 Input range low  Set value (SV) or PID memory Memory Level 1 Measured value (PV)  Level PID setting 1 group 1 area 1 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 295 (See Example 2) [Example 2] Level PID setting 3 in Example 1 has been changed to -100 ºC. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 296  Parameters of Memory area at Level PID When using Level PID, parameters of Memory area are separated to be used for the Level PID function and the regular Memory area function. Parameters of Memory area (at Level PID) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 297 The value selected in the Level PID action selection [SV or PV] is checked and determined in which level of the PID it is, and the control is done using the PID values from the Memory area appropriate to the level. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 298 Refer to Parameters in each group for the parameters in Group 0.  Example of action of the Memory area when setting simple ramp/soak program at Level PID [When “1: Switching by Set value (SV) (Level PID action)” is selected in Level PID action selection] 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 299 Setting Level PID differential gap prevents memory areas from switching too frequently. When setting “Switch by Set value (SV)” to Level PID action: The setting of Level PID differential gap is available; however, it is recommended to set “0.0” to Level PID differential gap. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 300 When the Level PID action selection is “Switching by Measured value (PV)”: Level PID is done at the Measured value (PV) Input 1. The Level PID will not work at the Set value (SV) or Measured value (PV) of the Differential temperature input. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 301 Function block No. 58: Select function for Input 2 (Engineering mode), AND choose a setting other than “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.52: Input 2_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 302 “Cascade control” in Function block No. 58: Select function for Input 2 (Engineering mode), AND choose a setting other than “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.52: Input 2_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 303 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 304: Eliminating Offset Inherent To Proportioning Control (Manual Reset)

    Input 2 (Engineering mode), AND choose a setting other than “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.52: Input 2_Control action (Engineering mode). Additionally, value 0 must also be entered in the Input 1_Integral time in the same memory area. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 305: Continuing Stable Control After The Operation Transfer (Sv Tracking)

    [Change of set values when switched from Remote to Local mode] Operation mode: Remote mode Local mode SV tracking used Remote set value Remote set value just before switching SV tracking unused Remote set value Local set value 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 306 Input 2 (slave-side) follows the Input 2_Measured value (PV) just before the switching  When the Slave single control is switched to the Cascade control, the set value of Input 1 (master-side) follows the Input 1_Measured value (PV) just before the switching 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 307 = Input 1_Set value (master-side) = Input 1_Set value (master-side) SV tracking Input 2_Set value (slave-side) Input 2_Set value (slave-side) unused = Input 2_Set value (slave-side) = Set value according to the Manipulated output of Input 1 (master-side) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 308 = Measured value (PV) = Measured value (PV) Input 1 and Input 2 is the same action The SV tracking does not function at the time of switching from Auto mode to Manual mode. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 309 0 to 3 0: No SV tracking function +1: SV tracking at transferring Remote/Local, Cascade mode, or 2-loop control/Differential temperature control +2: SV tracking at transferring Auto/Manual To select two or more functions, sum each value. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 310 Setting procedure  SV tracking setting Refer to 8.9 Controlling with Manual Control for operating Auto/Manual switching. Refer to 8.10 Using Remote Setting Input for operating Remote/Local switching. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 311: Suppressing Overshoot

    (SV) change, and external disturbances. Overshoot during the transition from Ramp to Soak can be prevented. The intensity ranges from 0 to 4 (5 scales). Startup (power on, control stop to start), Set value (SV) change 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 312 During Ramp control (Change of SV by Setting change rate limiter) Overshoot can be suppressed when the temperature is in transition from the Ramp state to the Soak state. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 313 Differential temperature control” or “Cascade control” in Function block No. 58: Select function for Input 2 (Engineering mode), AND choose a setting other than “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.52: Input 2_Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 314 [MC-VCOS(R)])” in Function block No. 52: Input 2_Control action (Engineering mode). Additionally, a value other than 0 must also be entered in the Input 2_Proportional band [heat-side] and the Input 2_Integral time in the same memory area. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 315 “Cascade control” in Function block No. 58: Select function for Input 2 (Engineering mode), AND choose a setting other than “3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.52: Input 2_ Control action (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 316 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 317: Changing The Action At Power On (Hot/Cold Start)

    Determination point of Hot start 1 is set. Determination point of start is a deviation setting from the Set value (SV).  The start state is determined according to the Measured value (PV) level [deviation from set value] at power recovery. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 318 0 to Input 1_Input span (When Control with PV select: 0 to PV select input span) 0: Operation starts from any start state selected by Hot/Cold start [Varies with the setting of the Decimal point position.] 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 319  Output value selection when power is restored [Engineering Mode: Function block No. 50 (Fn50)] Parameter symbol Data range Factory set value MVSL 0: 0% 1: Output limiter low 2: Operation immediately before power cut 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 320 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 321: Display-Related Functions

    [Example] When “Event 1 set value (EV1)” screen in the Parameter setting mode is registered in the Parameter select setting screen, this screen can be viewed in both the Parameter select mode and the Parameter setting mode. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 322 Parameter select mode. Setting lock mode: Parameter select setting screen (for registration) : Registered screens : Unregistered screens (Set value = 0) Parameter select mode: Displayed screens : Only registered screens are grouped for display. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 323 Archive the Parameter select direct registration” screen and enable the direct registration registration. When the direct registration is set to ON, modes are forced to be data lock state except the Setting lock mode. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 324 Parameter select setting screen, the new screen will be added to after the registered screen. Even if there are unregistered screens, the new screen will be added to after the screen with the largest screen number of the Parameter select setting screen. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 325 No.16, and the data before that will be moved ahead to toward the direction of the smaller numbers. Consequently, the screen registered at the Parameter select setting 1 will be moved out and removed from the registration. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 326 [Example of Direct registration] This is an example to make a direct registration of “Input 1_PV bias” in the Setting group 21 in the Setup setting mode under the state of the “[Registered screen and display (1)]”. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 327  Parameter select setting 1 to 16 [Setting Lock Mode] Parameter symbol Data range Factory set value PS L 01 0: No registration 1 to 351 (Screen No.) Refer to Table 9.1 List of screen numbers for details. PS L 16 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 328 Cascade control in the Manual mode. selection (Area transfer) Input 2_Manual manipulated output value when the control is Input 2_Manipulated output 2-loop control and when Input 2 is in Manual mode. value (Area transfer) Remote/Local transfer selection (Area transfer) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 329 183 OUT3 logic calculation selection 127 PV select transfer time 184 Energized/De-energized selection Setup setting 185 Interlock selection Input 1_Overshoot prevention mode: Setting 186 Output action at control stop feature group No.59 187 Event action during MAN mode 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 330 241 Input 1_Action (high) input error 291 Input 2_Valve coefficient E 242 Input 1_Action (low) input error 292 Input 2_Valve coefficient F Input 1_Manipulated output 293 Input 2_Pressure standard for value at input error 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 331 333 Register type Engineering mode: Register start number (High- Function block order 4-bit) No.62 (Fn62) Register start number (Low- order 16-bit) 336 Monitor item register bias 337 Setting item register bias 338 Instrument link recognition time 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 332: Hiding Unnecessary Screens

    Input 1_Soft start remaining time, Input 2_Soft start remaining time, * Setting is done at “Manipulated output value (MV) monitor” ** Setting is done at “Soft start remaining time” [Operating navigation in the Monitor & SV setting mode] 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 333 +1: Remote setting input value monitor +2: Manipulated output value (MV) monitor +4: Current transformer (CT) monitor +8: Comprehensive event state +16: Memory area soak time To select two or more functions, sum each value. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 334: Hiding Screens In Operation Transfer Mode

    +4: Startup tuning (ST) +8: Auto/Manual transfer +16: Remote/Local transfer (Cascade mode transfer, PV select transfer, 2-loop control/Differential temperature control) +32: Control area Local/External transfer To select two or more functions, sum each value. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 335: Hiding The Screen Using The Blind Function

    When all of the necessary screens are placed together in the Parameter select mode, there will be no need of switching screens to other modes. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 336: Hiding The Display Of The Set Value (Sv)

    9.3 Hiding the Display of the Set Value (SV) On the normal PV/SV monitor screen, the Set value (SV) is displayed on the set value (SV) display unit. This display can be turned OFF. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 337 2. D S. S V 0: Hide Input 2_SV 1: Show Input 2_SV To display “Show/Hide Input 2_SV”, choose “2-loop control/Differential temperature control” or “Cascade control” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 338: Changing The Display Position Of Stop During The Control Stop

     STOP display selection [Engineering Mode: Function block No. 10 (Fn10)] Parameter symbol Data range Factory set value SP C H 0: Stop on PV display 1: Stop on SV display 2: Stop on MV display 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 339: Changing The Alm Lamp Lighting Condition

     Event 1  Event 2  Event 3  Event 4  Input 1_Input error high Factory set  Input 1_Input error ranges ALM lamp  Input 2_Input error high  Input 2_Input error 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 340 8: Event 4 16: Input 1_Input error high 32: Input 1_Input error low 64: Input 2_Input error high 128: Input 2_Input error low To select two or more functions, sum each value. Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 341: Changing The Display Contents Of The Mv Display

    9.6 Changing the Display Contents of the MV Display While the SC-F71 is monitoring the Measured value (PV) and the Set value (SV), the MV display can be configured to change the display contents. Description of function The MV display can display the following data.

  • Page 342: Checking Input Peak Value/Bottom Value

    (min) Measured values (PV). Each of these values is updated when the measured temperature becomes more (or less) than the value now being held. The stored peak (max) and bottom (min) values can be reset on the Hold reset screen. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 343 To display “Input 2_Bottom hold monitor”, choose “Cascade control”, “Control with PV select”, “2-loop control/Differential temperature control” or “Input circuit error alarm” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 344: Suppressing The Display Flickering

     Applicable screens The PV/SV monitor screen which comes at the beginning in the Monitor & SV setting mode. When the instrument has two inputs, PV/SV on the Input 2 is also covered. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 345: Checking The Instrument Information

     Product identification code monitor Displays the product identification code of the instrument. As the product identification code is too long to be displayed on a single screen, it can be scrolled left and right with keys. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 346 Example: Product identification code is SC-F713801-8844*4NH1NN/2 303 SC-F71 comes with three display units; PV, SV and MV are displayed. SC-F7 SC-F7 C-F71 -F713 13801 13801 3871- 871-8 -8844 -8844 -8844 8844X 844X4 SC-F7 C-F71 -F713 13801 3801- 801-8 -8844 8844*...
  • Page 347 Operating procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 348: Setting And Key Operation

    Input 1_Input range is 0 to 1372 °C, Input 1_Setting limiter high is 800 °C. Changing the Input 1_Input range high to 400 °C will change the Setting limiter high to 400 °C accordingly. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 349 [Varies with the setting of the Decimal point position.] Refer to “4. Parameters that are Initialized/Modified when Setting is Changed” for the parameters that are automatically converted when the Input 1_Setting limiter low is changed. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 350 Input 2 (Engineering mode). Refer to “4. Parameters that are Initialized/Modified when Setting is Changed” for the parameters that are automatically converted when the Input 2_Setting limiter low is changed. Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 351: Eliminating A Sudden Set Value Change (Setting Change Rate Limiter)

    Set value (SV) change is available for events using a local SV During the Remote mode, the Input 1_Setting change rate limiter will function to Remote setting input value. Input 2_Setting change rate limiter will be unavailable during Cascade control. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 352 [Varies with the setting of the Decimal point position.] To display “Input 2_Setting change rate limiter (down)”, choose “2-loop control/ Differential temperature control” or “Cascade control” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 353 Setting procedure  Set the Setting change rate limiter unit time parameter 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 354 (SV) change is invalid. However, the event using a local SV will have the Event re-hold function by the set value (SV) change valid. Soft start will be invalid for the remote setting input value while remote mode is 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 355 1) When the set value (SV) is changed in an increasing direction 2) When the set value (SV) is changed in an increasing → decreasing direction  When the Soft start time is changed during Soft start 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 356 (Before change) Soft start time (After change)  Set value (SV) value when Autotuning (AT) is executed by applying Autotuning (AT) bias during Soft start Autotuning (AT) starts after the Soft start is finished. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 357 0 hours 00 minutes to 99 hours 59 minutes 0:00 0 minutes 00 seconds to 199 minutes 59 seconds (0 minutes 00 seconds) [The time unit depends on the setting of Soft start time unit.] 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 358 [The time unit depends on the setting of Soft start time unit.] To display “Input 2_Soft start time decrease”, choose “2-loop control/Differential temperature control” or “Cascade control” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 359 Setting Procedure  Setting Soft start function 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 360 Next parameter is displayed. < Press keys simultaneously to return to the MODE Measured value (PV)/Set value (SV) Monitor. (The key may be pressed to return to the MONI Measured value (PV)/Set value (SV) Monitor.) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 361: Storing The Control Related Set Values (Memory Area Function)

     Memory area parameters of Parameter group No. 56 (Pn56) [Input_1 Cooling control] Input 1_Proportional band [cool-side] Input 1_Integral time [cool-side] Input 1_Derivative time [cool-side] Input 1_Overlap/Deadband Input 1_Output limiter high [cool-side] Input 1_Output limiter low [cool-side] 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 362 Memory area. Parameter group No. 51: Input 1_ON/OFF action differential gap (upper) Input 1_ON/OFF action differential gap (lower) Parameter group No. 52: Input 2_ON/OFF action differential gap (upper) Input 2_ON/OFF action differential gap (lower) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 363 Digital input (DI), or communication. area Memory area transfer by Memory Area Soak display time is also possible. Refer to the SC-F71 Instruction Manual [Host communication] (172-65711M) for communication.  Selection by front key operation Changing the Control area from 1 to 2 Monitor &...
  • Page 364 Monitor & SV setting mode PV/SV monitor Memory area soak time monitor 280 . AREA AREA Set value (SV) in Memory area soak time 25 0 8 07 Memory area 3 in Memory area 2 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 365: Copying The Data In Memory Area To Set Other Areas

    Up to 16 Memory areas can be set, but it consumes time if Memory areas are set one after another. On this instrument, the data in the Memory area can be copied. Screens for Area copy mode [To exit from Area copy mode] 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 366 Parameter setting mode Parameter setting group No.00 Pn00 Area copy mode** AREA You can start from any screen inside Monitor & SV setting mode the Parameter PV/SV monitor setting mode. 280 . MODE AREA 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 367: Running A Simple Ramp/Soak Control

     Link area number: Sets the memory area numbers for linking the corresponding memory areas. Besides the above, the Setting change rate limiter unit time and Area soak time unit are set in the Engineering mode. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 368 Refer to the “Memory area soak time monitor” in the Monitor & SV setting mode for checking the elapsed time in each area. Memory area soak time can be displayed on the MV display. Refer to 9.6 Changing the Display Contents of the MV Display. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 369 The start area is made the Control area Check the Control area before the start of Ramp/Soak control.  Changes from the STOP mode to the Ramp/Soak control start RUN mode, and starts Ramp/Soak control. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 370 When implementing Ramp/Soak control, it may be necessary to set the following items in advance.  Function block No. 70 (Fn70): Setting change rate limiter unit time (Engineering mode)  Function block No. 70 (Fn70): Soak time unit (Engineering mode) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 371 Since control stops (STOP) at this time, go directly to the next step. ・Setting change rate limiter unit time: 60 seconds [factory set value] ・Soak time unit: 1 (0 minutes 00 seconds to 199 minutes 59 seconds) [factory set value] 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 372 Memory area 1, 2 and 3. The Memory area number flashes when a Memory area other than that in the Control area is displayed. (* Area other than Control area is displayed) AREA 2 000 Flashing* Flashing 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 373 Next parameter is displayed. < Press keys simultaneously to return to the MODE Measured value (PV)/Set value (SV) Monitor. (The key may be pressed to return to the MONI Measured value (PV)/Set value (SV) Monitor.) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 374: Using A Simple Sequence Operation

     Auto/Manual transfer selection (Area): Select the operation mode (Auto mode or Manual mode) at the time of switching the memory area. Selection between “Bump” or “Bumpless” is available both in Auto and Manual modes. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 375 Tracking) for the SV tracking function. Besides the above, the Setting change rate limiter unit time and Area soak time unit are set in the Engineering mode Example: Operating a simple sequence using Memory areas 1 through 4 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 376 To use the Digital input (DI) as a switching method, “Area jump” must be preset in the DI function selection. Refer to 7.2 Using Event Function for the Event function. Refer to 5.2 Switching Functions Using Digital Inputs (DI) for the DI function selection. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 377 (bump) is selected in Input 2_Auto/Manual transfer selection (Area)] To display “Input 2_Manipulated output value (Area)”, choose “2-loop control/Differential temperature control” in Function block No. 58: Select function for Input 2 (Engineering mode). 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 378 0: 0 hours 00 minutes to 99 hours 59 minutes 1: 0 minutes 00 seconds to 199 minutes 59 seconds 2: 0 hours 00 minutes 00 seconds to 9 hours 59 minutes 59 seconds 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 379 Setting procedure  Set the Setting change rate limiter unit time parameter and Soak time unit 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 380 < Press keys simultaneously to return to MODE transfer selection the Measured value (PV)/Set value (SV) Monitor. (Area) (The key may be pressed to return to the MONI Measured value (PV)/Set value (SV) Monitor.) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 381: Registering A Set Value (Sv) Without Pressing The Set Key

    S E T. K Y 0: SET key method Used to register the Set value (SV) using the SET key. 1: Direct registration Used to register the Set value (SV) without pressing the SET key. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 382: Accessing Some Functions Directly (Func Key)

    Setting procedure 10.8 Accessing Some Functions Directly (FUNC Key) SC-F71 has a FUNC key which allows a specified function to be assigned to it. Description of function Functions assignable to the FUNC key  RUN/STOP transfer: A  Autotuning (AT) (Common to Input 1 and 2): B ...
  • Page 383 10: Interlock release 11: Hold reset (Common to Input 1 and 2) 12: Input 1_Hold reset 13: Input 2_Hold reset 14: Set data unlock/lock transfer 15: Area jump 16: Parameter setting mode display switching 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 384 The function set at “FUNC key assignment” is activated upon a press of the FUNC key. 1: Press and hold The function set at “FUNC key assignment” is activated by holding the FUNC key pressed. Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 385: Restricting Key Operation (Set Data Lock)

    A character will be shown on the Set value (SV) display unit to show the lock mode MODE when any of key is pressed. The “LCK” is displayed only while the relevant key is pressed. Releasing the finger from the key will return the display to the original. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 386 A R E. L K 0: Memory area is adjustable when the setting data is locked. 1: Memory area is not adjustable when the setting data is locked. (Memory area transfer mode is not displayed) 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 387: Initializing The Set Data

     Initialization [Engineering Mode: Function block No. 91 (Fn91)] Parameter symbol Data range Factory set value DE F 1225: Start initialization Other values: Set values are maintained After the initialization, this instrument is restarted. This setting will automatically go back to zero. 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...
  • Page 388 Setting procedure 172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021...

  • Page 389: Product Warranty

    One year following product delivery. Warranty Coverage TLV CO., LTD. warrants this product to the original purchaser to be free from defective materials and workmanship. Under this warranty, the product will be repaired or replaced at our option, without charge for parts or labor.

  • Page 390: Service

    Service For Service or Technical Assistance: Contact your TLV representative or your TLV office. In Europe: Tel: [49]-(0)7263-9150-0 Daimler-Benz-Straße 16-18, 74915 Waibstadt, Germany Fax: [49]-(0)7263-9150-50 Tel: [44]-(0)1242-227223 Star Lodge, Montpellier Drive, Cheltenham, Gloucestershire, GL50 1TY, U.K. Fax: [44]-(0)1242-223077 Tel: [33]-(0)4-72482222 Parc d’Ariane 2, bât.

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