YOKOGAWA UT520 User Manual
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YOKOGAWA UT520 User Manual

Digital indicating controllers
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User's
Manual
Models UT550/UT520
Digital Indicating Controllers
User's Manual for
Single-loop Control
IM 05D01C02-41E
IM 05D01C02-41E
3rd Edition

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Summary of Contents for YOKOGAWA UT520

  • Page 1 User’s Manual Models UT550/UT520 Digital Indicating Controllers User’s Manual for Single-loop Control IM 05D01C02-41E IM 05D01C02-41E 3rd Edition...
  • Page 2 Blank Page...
  • Page 3 User Setting column, where you can record your setpoints when setting them in the controller. I Controllers Applicable to Single-loop Control The specification codes of the UT550/UT520 applicable to single-loop control are given in the table below. UT550-00...
  • Page 4 I Force Majeure (1) Yokogawa assumes no liability to any party for any loss or damage, direct or indirect, caused by the use or any unpredictable defect of the product. (2) No portion of the software supplied by Yokogawa may be transferred, exchanged, leased or sublet for use by any third party without the prior permission of Yokogawa.
  • Page 5 (1) In order to protect the product and the system controlled by it against damage and ensure its safe use, make certain that all of the instructions and precautions relating to safety contained in this document are strictly adhered to. Yokogawa does not guaran- tee safety if products are not handled according to these instructions.
  • Page 6 Blank Page...

  • Page 7: Table Of Contents

    Toc-i <Int> <Rev> Models UT550/UT520 Digital Indicating Controllers User’s Manual for Single-loop Control IM 05D01C02-41E 3rd Edition CONTENTS Introduction......................i Installation ....................1-1 Model and Suffix Codes .................. 1-1 How to Install ....................1-2 How to Connect Wires ..................1-5 Hardware Specifications ................

  • Page 8: Table Of Contents

    Toc-ii <Int> <Rev> Troubleshooting and Maintenance ............4-1 Troubleshooting ....................4-1 Maintenance ....................4-6 4.2.1 Cleaning ................... 4-6 4.2.2 Replacing Brackets ................4-6 4.2.3 Attaching Terminal Cover ..............4-6 4.2.4 Replacing Parts with a Limited Service Life ........4-8 4.2.5 Replacing Control Output Relays ............

  • Page 9: Installation

    With 5 additional DIs and 4 additional DOs With auxiliary analog (remote) input and 1 additional DI Model Suffix Code Description UT520 Digital indicating controller (provided with retransmission output and 15 VDC loop power supply as standard) Type Standard type None...

  • Page 10: How To Install

    <Toc> < 1. Installation > Contact input terminals Contact output terminals Model and Suffix Codes UT520-00 UT520-07 UT520-08 Note: For details on the functions of contact inputs/outputs, see “1.5 Terminal Wiring Diagrams” . How to Install NOTE To install the controller, select a location where:...
  • Page 11 145 min. (53) “N” stands for the number of controllers to be installed. However, the measured value applies if N +0.8 +0.8 (25) UT520 Unit: mm Small bracket LP2 CAS REM MAN SET/ENT A / M Small bracket (Panel thickness)
  • Page 12 <Toc> < 1. Installation > I How to Install Turn off the power to the controller before installing it on the panel because there is a possibility of electric shock. CAUTION After opening the mounting hole on the panel, follow the procedures below to install the controller: Insert the controller into the opening from the front of the panel so that the terminal board on the rear is at the far side.

  • Page 13: How To Connect Wires

    When there is a possibility of being struck by external lightning surge, use the arrester to protect the instrument. I For DC Relay Wiring I For AC Relay Wiring UT550/UT520 External AC power supply UT550/UT520 External DC power supply O.C Relay Diode UT’s contact...
  • Page 14 Power supply, grounding, relay contact outputs 600 V PVC insulated wires, JIS C 3307, 0.9 to 2.0 mm Thermocouple Shielded compensating lead wires, JIS C 1610, (See Yokogawa Electric’s GS 6B1U1-E.) Shielded wires (three conductors), UL2482 (Hitachi Cable) Other signals Shielded wires...

  • Page 15: Hardware Specifications

    <Toc> < 1. Installation > Hardware Specifications PV Input Signals • Number of inputs: 1 (terminals • Input type: Universal input system. The input type can be selected with the software. • Sampling period: Can be selected from 50, 100, 200 and 500 ms. Initial value: 200 ms •...
  • Page 16 <Toc> < 1. Installation > Feedback Resistance Input Provided for position proportional type only (terminals • Slide resistance value: 100 to 2.5 k of overall resistance (burnout detection for sliding wire provided) • Measuring resolution: 0.1% of overall resistance Loop Power Supply Power is supplied to a two-wire transmitter.
  • Page 17 UT550- UT550- UT550- UT550- UT550- UT520-00 UT520-07 UT520-08 • Input type: Non-voltage contact or transistor open collector input • Input contact rating: 12 V DC, 10 mA or more • On/off determination: For non-voltage contact input, contact resistance of 1 k or less is determined as “on”...
  • Page 18 5-digit, 7-segment, red LEDs, character height of 20 mm for UT550 and 12 mm for UT520 • Setpoint display: 3-digit and 5-digit, 7-segment, red LEDs, character height of 9.3 mm (for both UT520 and UT550) • Status indicating lamps: LEDs Safety and EMC Standards •...
  • Page 19 • Dimensions: UT550 96 (W) 96 (H) 100 (depth from panel face) mm UT520 48 (W) 96 (H) 100 (depth from panel face) mm • Installation: Panel-mounting type. With top and bottom mounting hardware (1 each) • Panel cutout dimensions: +0.8...
  • Page 20 1-12 <Toc> < 1. Installation > Power Supply Specifications • Power supply: Rated voltage of 100 to 240 V AC ( 10%), 50/60 Hz • Power consumption: Max. 20 VA (8.0 W max.) • Internal fuse rating: 250 V AC, 1.6A time-lug fuse •...

  • Page 21: Terminal Wiring Diagrams

    1-13 <Toc> < 1. Installation > • Feedback slide resistance input terminals: Not isolated from analog current output terminals (control, retransmission), 15 V DC loop power supply, and voltage pulse control outputs. Isolated from other input/output terminals and internal circuit. •...
  • Page 22 1.SP2.SP 3.SP4.SP 5.SP6.SP7.SP 8.SP...
  • Page 23 0-20 mA DC 4-20 mA DC, voltage pulse (12 V) 1.SP2.SP 3.SP4.SP 5.SP6.SP7.SP 8.SP 48 49 48 49...
  • Page 26 Blank Page...

  • Page 27: Initial Settings

    If changed to initial values, set them to the appropriate values again. Set operating parameters. Controller operation The following explanation of operation for the UT550’s panel, shown in the figure, is the same as that of the UT520’s panel. IM 05D01C02-41E 3rd Edition: May 31, 2006-00...

  • Page 28: Names And Functions Of Front Panel Parts

    <Toc> < 2. Initial Settings > Names and Functions of Front Panel Parts 4. Process 4. Process 1. Deviation 5. Setpoint variable (PV) variable (PV) monitor display display display 2. Status 2. Status indicator 5. Setpoint indicator lamps lamps display 6.

  • Page 29: Setting Pv Input Type (Setting First At Power-On)

    <Toc> < 2. Initial Settings > Setting PV Input Type (Setting First at Power-on) NOTE • The controller displays an operating display when the power is turned on. The submenu “IN” appears at this point if the type of PV input has not been defined yet. In this case, first press the key once to display the parameter “IN1”...
  • Page 30 <Toc> < 2. Initial Settings > Press the SET/ENT key once to register the Press the SET/ENT key once to display the setpoint. parameter “RL1” (minimum value of PV input range). Displays parameter “RL1”. SET/ENT SET/ENT Press the SET/ENT key once to display the Press the key to display the parameter “UN1”...
  • Page 31 <Toc> < 2. Initial Settings > I Instrument Input Range Codes Instrument Input Instrument Input Type Measurement Accuracy Range Code Input Range Set the data item PV Input Type “IN1” to the OFF option to leave the PV input Unspecified type undefined.
  • Page 32 <Toc> < 2. Initial Settings > NOTE The controller may automatically initialize the registered operating parameter setpoints if any change is made to the data item PV Input Type (IN1), Maximum Value of PV Input Range (RH1), Minimum Value of PV Input Range (RL1), PV Input Decimal Point Position (DP1), Maximum Value of PV Input Scale (SH1) or Minimum Value of PV Input Scale (SL1).

  • Page 33: Changing Pv Input Type

    <Toc> < 2. Initial Settings > Changing PV Input Type The following operating procedure de- PV input terminal scribes an example of changing the setting Thermocouple/mV/V input......of K-type thermocouple (-200.0 to 500.0˚C) RTD input ..........to RTD Pt100 (-200.0 to 500.0˚C) and a measurement range of 0.0 to 200.0˚C. Bring the operating display into view Press the SET/ENT...
  • Page 34 <Toc> < 2. Initial Settings > Press the SET/ENT key once to register the Press the SET/ENT key once to display the setpoint. parameter “RL1” (minimum value of PV input range). Displays parameter “RL1”. SET/ENT SET/ENT Press the SET/ENT key once to display the parameter “UN1”.

  • Page 35: Setting Control Output Type (Except For A Position Proportional Controller)

    <Toc> < 2. Initial Settings > Setting Control Output Type (except for a Position Proportional Controller) The following operating procedure describes an example of changing time proportional PID relay output (0: factory-shipped value) to current output (2). Control output terminal Values in parentheses are setpoints Time proportional PID relay (0)/on-off(3) output......
  • Page 36 2-10 <Toc> < 2. Initial Settings > Press the key to display the Press the SET/ENT key for more than 3 sec- required setpoint. The figure below shows onds. This returns you to the display an example of setting to current output (4 shown at power-on (figure below).

  • Page 37: Calibrating Valve Position (For A Position Proportional Controller Only)

    2-11 <Toc> < 2. Initial Settings > Calibrating Valve Position (for a Position Proportional Controller Only) The following operation describes a procedure of inputting a feedback signal from a control valve to calibrate the full closed and full open positions of the valve automatically. To cali- brate the valve position, you need to carry out wire connections and bring the controller into manual mode.
  • Page 38 2-12 <Toc> < 2. Initial Settings > Press the key to display “ON”. Calibration has ended successfully when the indication changes from “ON” to “OFF”. Go to step [14]. Blinks during change. SET/ENT SET/ENT Press the SET/ENT key once. The controller automatically calibrates the valve position (fully open or closed).

  • Page 39: Initializing Parameters

    2-13 <Toc> < 2. Initial Settings > Initializing Parameters Be sure to follow the steps below after a change of setting has been made to the data item PV Input Type, PV Input Range or PV Input Scale. Initializing the above parameter setpoints may initialize the registered operating/setup paraemters.

  • Page 40: Changing Alarm Type

    2-14 <Toc> < 2. Initial Settings > Press the key to display “ON”. Press the SET/ENT key for more than 3 sec- onds. This returns you to the display shown at power-on (figure below). Blinks during change. Displays PV SET/ENT Displays target setpoint-1 “1.SP”.
  • Page 41 2-15 <Toc> < 2. Initial Settings > Press the SET/ENT key once to display the Press the SET/ENT key once to register the submenu “SP”. setpoint. Displays submenu “SP”. Displays symbol “ST.S”. SET/ENT SET/ENT Press the key once to display the You can take the same steps for alarm-2 submenu “ALM”.
  • Page 42 2-16 <Toc> < 2. Initial Settings > I List of Alarm Types The table below shows the alarm types and alarm actions. In the table, codes 1 to 10 are not provided with stand-by actions, while codes 11 to 20 are provided with stand-by actions.

  • Page 43: Description Of Multiple Setpoints And Pid

    Power-on Description of Multiple Setpoints and PID The UT550/UT520 has a maximum of eight target setpoints, and has PID for each of these setpoints. The following shows the correspondence between the target setpoint numbers (SPN), target setpoints (SP), and PID parameters.
  • Page 44 Blank Page...

  • Page 45: Operations

    <Toc> < 3. Operations > Operations This chapter describes key entries for operating the controller. For operations using external contact inputs, see “1.5 Terminal Wiring Diagrams”. If you cannot remem- ber how to carry out an operation during setting, press the key for more than 3 SET/ENT seconds.
  • Page 46 <Toc> < 3. Operations > I Operating Displays for a Heating/Cooling Controller G SP display The PV input value appears on the PV display. The target setpoint (1.SP) appears on the Setpoint display. G Heating/Cooling OUT Display The PV input value appears on the PV display. The heating and cooling sides control output value (C.H) appears on the Setpoint display.

  • Page 47: Setting Target Setpoint (Sp)

    <Toc> < 3. Operations > Setting Target Setpoint (SP) The following operating procedure describes an example of setting 150.0 to a target setpoint. In automatic operation, the controller starts control using set target setpoints. Bring the operating display into view Press the key once to register the SET/ENT...
  • Page 48 <Toc> < 3. Operations > Bring the operating display into view Press the SET/ENT key once again to display (display appears at power on). the parameter “AT”. MAN lamp Displays PV. OFF. Displays parameter Displays “AT”. target setpoint-1 “1.SP”. SET/ENT SET/ENT Press the key to display the...

  • Page 49: Setting Pid Manually

    <Toc> < 3. Operations > Setting PID Manually If you know the values to be set or if suitable PID constants cannot be obtained by auto- tuning, follow the procedure below to set values. Bring the operating display into view Press the SET/ENT key six times to display...

  • Page 50: Setting Alarm Setpoints

    <Toc> < 3. Operations > Setting Alarm Setpoints Alarm output terminals Factory-shipped settings The following operating procedure describes an Alarm-1 (terminal numbers )....PV high limit alarm example of setting 160.0 to alarm-1 setpoint. Alarm-2 (terminal numbers )....PV low limit alarm Check alarm type before setting the alarm setpoint.

  • Page 51: Selecting Target Setpoint Numbers (Spn)

    <Toc> < 3. Operations > Selecting Target Setpoint Numbers (SPN) The following operating procedure describes an example of changing a target setpoint number (SPN) from 1 to 2. NOTE If a target setpoint number has been switched using contact input, when the contact input is on, that number cannot be selected by keystroke.

  • Page 52: Switching Between Run And Stop

    <Toc> < 3. Operations > Switching between Run and Stop Selection between the Run state (RUN) and Stop state (STOP) can be made with contact input 2 (DI2). (Factory-set default) “RUN” when DI2 is set to OFF SET/ENT “STOP” when DI2 is set to ON When the controller is stopped, input and outputs are as follows: PV input Displays the PV value.

  • Page 53: Manipulating Control Output During Manual Operation

    <Toc> < 3. Operations > Manipulating Control Output during Manual Operation NOTE Control output cannot be changed if the controller is stopped. In this case, the preset output value (operating parameter PO) will be output. In heating/cooling control, the heating preset output value (operating parameter PO) and cooling-side preset output value (operating parameter Oc) will be output.
  • Page 54 3-10 <Toc> < 3. Operations > G Controller behavior and control output manipulation when the dead band is positive The following is an example when the DB parameter is set at 12.4%. If you hold down the key with the heating-side output under manipulation (i.e., cooling- side output C = 0.0%), the heating-side output (H =) decreases.

  • Page 55: Switching Between Remote (Rem) And Local (Lcl)

    3-11 <Toc> < 3. Operations > I Manipulating the Control Output during Position Proportional Control The controller continues to provide control output as long as the key is being pressed. key : Closes the valve. key : Opens the valve. Displays the MAN lamp ON.
  • Page 56 3-12 <Toc> < 3. Operations > Bring the operating display into view Press the key to display “REM”. (display appears at power on). Blinks during REM lamp Displays PV. change. OFF. Displays Displays setpoint “REM”. target setpoint-1 SET/ENT “1.SP”. SET/ENT Press the SET/ENT key once to register the...

  • Page 57: Troubleshooting And Maintenance

    <Toc> < 4. Troubleshooting and Maintenance > Troubleshooting and Maintenance Troubleshooting I Troubleshooting Flow If the operating display does not appear after turning on the controller’s power, follow the measures in the procedure below. If a problem appears complicated, contact our sales representative.
  • Page 58 <Toc> < 4. Troubleshooting and Maintenance > I Errors at Power On The following table shows errors that may be detected by the fault diagnosis function when the power is turned on. Error indication Description Control Alarm Retransmission Communication Remedy (on PV display unit) of error output...
  • Page 59 <Toc> < 4. Troubleshooting and Maintenance > I Possible Errors during Operation The following shows possible errors occurring during operations. Error indication Description Alarm Retransmis- Commu- Control output Remedy (on PV display unit) of error output sion output nication Displays “RJC” and Measured RJC error PV alternately...
  • Page 60 <Toc> < 4. Troubleshooting and Maintenance > G Power failure of more than about 2 seconds The following show effects caused in “settings” and “operation status.” Alarm action Continues. Alarm with standby function will enter standby status. Setting parameter Set contents of each parameter are retained. Auto-tuning Cancelled.
  • Page 61 G The controller does not show the correct process variable (PV). • The UT550/UT520 controllers have a universal input. The type of PV input can be set/changed using the parameter “IN1”. At this point, the controller must be wired correctly according to the selected type of PV input.

  • Page 62: Maintenance

    <Toc> < 4. Troubleshooting and Maintenance > Maintenance This section describes the cleaning and maintenance of the UT550/UT520. 4.2.1 Cleaning The front panel and operation keys should be gently wiped with a dry cloth. NOTE Do not use alcohol, benzine, or any other solvents.
  • Page 63 <Toc> < 4. Troubleshooting and Maintenance > I Attaching Terminal Cover The procedure for attaching the terminal cover is as follows. Do not touch the terminals on the rear panel when power is being supplied to the controller. Doing so may result in electric shock. Before attaching the terminal cover, turn off the source circuit breaker and use a terster to check that the power cable is not conducting any electricity.

  • Page 64: Replacing Parts With A Limited Service Life

    < 4. Troubleshooting and Maintenance > 4.2.4 Replacing Parts with a Limited Service Life The follwing UT550/UT520 parts have a limited service life. The service life given in the table assume that the controller is used under normal operating conditions. Part...
  • Page 65 Note: Be careful not to damage the RJC sensor. The location and number of the relays differ depending on the model code of the UT550/ UT520 Confirm the location of the control output relay to be replaced before pulling out the relay.
  • Page 66 4-10 <Toc> < 4. Troubleshooting and Maintenance > Pull out the relay to be replaced. The control output relays are easy to remove and mount, since they are connected via a socket onto the print boards. Insert the new relay in the socket. Use the following relay.
  • Page 67 Parameter Map This section contains “Operating Parameter Map” and “Setup Parameter Map” for UT550/ UT520 as a guideline for setting parameters. These maps are helpful in finding the positions of the displays when setting the param- eters, and should be used as a quick reference for the entire range of parameter displays.
  • Page 68 <Toc> < 5. Parameters > UT550/UT520 Operating Parameter Map Operating display Operating Operating Operating Operating SELECT SELECT SELECT display 1 display 2 display 3 display n display 1 display 2 display 5 SET3S Main menu SET3S MODE Submenu 7.PID 8.PID 1.PID...
  • Page 69 1.AA 2.AA Note: The number and contents of operating displays differs according to the 1.BA 2.BA UT550 or UT520 model, the UT modes and control output types. 1.AB 2.AB 1.BB 2.BB Note: The parameter codes of the UT550/UT520 are different from the 1.MD...
  • Page 70 Note: The parameter codes of the UT550/UT520 are different from the characters actually displayed on the LED indicator. Refer to "5.2 Lists of Parameters" for the corresponding indicator characters.
  • Page 71 P.L2 Note: The parameter items shown on the [TEST] submenu of the setup parameter display are to be used by Yokogawa service personnel to check the controller functions. Users cannot set or change these parameters. Note: The parameter codes of the UT550/UT520 are different from the characters actually displayed on the LED indicator.
  • Page 72 <Toc> < 5. Parameters > Lists of Parameters This section describes the functions of parameters briefly. In addition, each parameter table has a “User Setting” column, where you can record your setpoints when setting them in the controller. * Parameters relating to PV or setpoints should all be set in real numbers. For example, use temperature values to define target setpoints and alarm setpoints for temperature input.
  • Page 73 <Toc> < 5. Parameters > G Operation-related Parameters Located in: Main menu = ; Submenu = (LP1) (PAR) Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM Auto-tuning OFF (0): No auto-tuning OFF (0) 1: Auto-tuning for 1.SP 2: Auto-tuning for 2.SP...
  • Page 74 <Toc> < 5. Parameters > G Setpoint-, Alarm- and PID-related Parameters Located in: Main menu = ; Submenu = (LP1) (1.PID) The table below lists the Target Setpoint-1 (1.SP) operating parameter and parameters that apply to the 1.SP parameter. Parameter Name of Parameter Setting Range and Description Initial Value...
  • Page 75 <Toc> < 5. Parameters > Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM Cooling-side 0.0 to 999.9% of PV input range 5.0% Ref.4.1(1) proportional band (Cooling-side ON/OFF control applies when 0.0) (1.Pc) Cooling-side integral OFF (0), 1 to 6000 sec.
  • Page 76 5-10 <Toc> < 5. Parameters > G Ten-segment Linearizer Parameters Located in: Main menu = (PYS1) G Ten-segment linearizer biasing (factory-set default) Correction (Actual input + Ten- segment linearizer biasing) Actual input 1.B6 Ten-segment linearizer 1.B5 biasing 1.B3 1.B4 Ten-segment 1.A1 1.A2 1.A3 1.A4 1.A5 1.A6...
  • Page 77 5-11 <Toc> < 5. Parameters > Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM 0.0% of PV input range Ten-segment -66.7% to 105.0% of PV input range linearizer 1 Ref.1.1(2) (1.A1) input-1 0.0% of PV input range span 0.0% of Ten-segment...
  • Page 78 5-12 <Toc> < 5. Parameters > I Setup Parameters G Target Setpoint-related Parameters Located in: Main menu = ; Submenu = (SP) (LOOP1) Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM Remote input RSP (1): Uses the value set remotely via remote input (terminals).
  • Page 79 5-13 <Toc> < 5. Parameters > G Alarm-related Parameters Located in: Main menu = ; Submenu = (ALM) (LOOP1) Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM Alarm-1 type OFF (0), 1 to 31 Ref.3.3(3) (same as below) Ref.3.3(4)
  • Page 80 5-14 <Toc> < 5. Parameters > G Control Action-related Parameters Located in: Main menu = ; Submenu = (CTL) (LOOP1) Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM Output velocity OFF (0) OFF (0) limiter 0.1 to 100.0%/sec...
  • Page 81 5-15 <Toc> < 5. Parameters > Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM Zone switching 0.0 to10.0% of PV input range span 0.5% of PV Same as hysteresis Allows hysteresis to be set for switching at a reference point. input range above (RHY)
  • Page 82 5-16 <Toc> < 5. Parameters > G Retransmission Output Parameters Located in: Main menu = ; Submenu = (CMLP) (RET) Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM Retransmission OFF (0): Disable output-1 type 1: PV1, 2: SP1, 3: OUT1, 4: LPS loop power supply (15 V), (RT1)
  • Page 83 5-17 <Toc> < 5. Parameters > G Deviation Monitor Parameters Located in: Main menu = ; Submenu = (CMLP) (TRND) Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM 1.0% of PV Deviation display band 0.0 to 100.0% of PV input range span input range...
  • Page 84 5-18 <Toc> < 5. Parameters > G SELECT Display Parameters Located in: Main menu = ; Submenu = (CONF) (CSEL) Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM OFF (0) SELECT display-1 OFF (0), 201 to 1023 registration Select the desired parameter from among the operating...
  • Page 85 5-19 <Toc> < 5. Parameters > G Contact Input Registration Parameters Located in: Main menu = ; Submenu = (CONF) (DI) Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM 5161 Auto/Manual switching These parameters determine which contact input to use to make selections/switches listed on the left.
  • Page 86 5-20 <Toc> < 5. Parameters > G Input-related Parameters Located in: Main menu = ; Submenu = (UTMD) (IN) Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM OFF (0) PV input type Specify the type of PV input as a range code.
  • Page 87 5-21 <Toc> < 5. Parameters > Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM OFF (0) Remote input Allows the remote input value to be determined as shown below burnout action in case of remote input burnout.
  • Page 88 5-22 <Toc> < 5. Parameters > G Output-related Parameters Located in: Main menu = ; Submenu = (UTMD) (OUT) Parameter Name of Parameter Setting Range and Description Initial User Target Item Symbol Value Setting in CD-ROM Control output Time proportional PID relay contact output (terminals Heating/ type Time proportional PID voltage pulse output (terminals...
  • Page 89 5-23 <Toc> < 5. Parameters > Parameter Name of Parameter Setting Range and Description Initial User Target Item Symbol Value Setting in CD-ROM Analog output-2 100% Set the values of segmental points for the 0% and 100% output 100.0 % Same as segmental point levels at which the values are presented via OUTPUT-2...
  • Page 90 5-24 <Toc> < 5. Parameters > G Parallel-mode Output The following explains an example of letting “Analog OUTPUT-1 (terminals )” and “Analog OUTPUT-3 (terminals )” present the parallel-mode characteristics of split computations. 1. Set the Control Output Type (OT1) parameter to “2”. This sets the control output to “current output.”...
  • Page 91 5-25 <Toc> < 5. Parameters > G Communication Parameters Located in: Main menu = ; Submenu = (UTMD) (R485) Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM Protocol selection 0: PC link communication 1: PC link communication (with sum check) 2: Ladder communication (PSL)
  • Page 92 5-26 <Toc> < 5. Parameters > G Parameter-initializing Parameters Located in: Main menu = ; Submenu = (UTMD) (INIT) Parameter Name of Parameter Setting Range and Description Initial Value User Target Item Symbol Setting in CD-ROM Parameter initialization OFF (0): - OFF (0) ON (1): Initialize parameters (INI)
  • Page 93 5-27 <Toc> < 5. Parameters > Precautions in Heating/Cooling Control • Keep the ratio of the heating-side proportional band (P) to the cooling-side propor- tional band (Pc) equal to or below 5. • If neither the heating-side nor the cooling-side is performing ON/OFF control, setting the integral time (I or Ic) of one side to “0”...
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  • Page 95: Function Block Diagram And Descriptions

    For details on these function block diagrams, refer to the descriptions men- tioned later. In the function block diagram for “Single-loop control”, some contact input/output that UT520 does not have appear. Refer to the function block diagram after confirm- ing the presence/absence of the contact input/output. IM 05D01C02-41E...
  • Page 96 <Toc> < 6. Function Block Diagram and Descriptions > I Function Block Diagram for Single-loop Control PV input terminals Remote input Communication terminals terminals Contact input INPUT1 INPUT3 RS485 Input selection Input selection Unit selection Unit selection Analog input range conversion Analog input range conversion Analog input bias Analog input bias...
  • Page 97 <Toc> < 6. Function Block Diagram and Descriptions > I Function Block Diagram for Single-loop Heating/Cooling Control PV input terminals Remote input Communication terminals terminals Contact input INPUT1 INPUT3 RS485 Input selection Input selection Unit selection Unit selection Analog input range conversion Analog input range conversion Analog input bias Analog input bias...
  • Page 98 <Toc> < 6. Function Block Diagram and Descriptions > I Function Block Diagram for Single-loop Position-proportional Control PV input terminals Remote input Communication terminals terminals Contact input INPUT1 INPUT3 RS485 Input selection Input selection Unit selection Unit selection Analog input range conversion Analog input range conversion Analog input bias Analog input bias...
  • Page 99 <Toc> < 6. Function Block Diagram and Descriptions > Functions and Parameters for “Single-loop Control” in Initial State (Factory-set default) Functions and parameters in initial state are given in the tables below. For details on each parameter, refer to “5.2 Lists of Parameters.” I PV Input PV input (INPUT1) is a universal input, which can receive signals from a thermocouple or RTD, or DC voltage signals.
  • Page 100 <Toc> < 6. Function Block Diagram and Descriptions > I Remote Input Remote input (INPUT3) can receive DC voltage signals. The controller is capable of biasing, square root extraction, first-order lag computation (filtering), and ratio biasing on remote input signals. Each function can be set by the following parameters.
  • Page 101 <Toc> < 6. Function Block Diagram and Descriptions > I Target Setpoint and PID It is possible to use a maximum of eight groups of target setpoints and PID parameters. The target setpoint can be selected by key operation or contact input. For selection by contact input, refer to “Contact Input.”...
  • Page 102 <Toc> < 6. Function Block Diagram and Descriptions > I Control Output Control output (OUTPUT1) selects the output type among the current output, voltage pulse output, and relay contact output signal. For heating/cooling control, the cooling-side signals are output to OUTPUT2. Preset output value is output when the operation is stopped by key operation or contact input, which takes priority over the manual operation.
  • Page 103 <Toc> < 6. Function Block Diagram and Descriptions > I Retransmission Output PV, target setpoint, or control output can be output to retransmission output 1 (OUTPUT3). Retransmission output 2 (OUTPUT1) can be used when the control output is relay. Each function can be set by the following parameters. Setup Parameters Function Parameter...
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  • Page 105 <Int> <Toc> Revision Information G Title : Models UT550/UT520 Digital Indicating Controllers User’s Manual for Single-loop Control G Manual No. : IM 05D01C02-41E Mar. 2000/1st Edition Newly published Jul. 2004/2nd Edition Change of the company name May 2006/3rd Edition Revision by the change of safety standard description...
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  • Page 108 Sales Branch Offices / Houten (The Netherlands), Wien (Austria), Zaventem (Belgium), Ratingen (Germany), Madrid (Spain), Bratislava (Slovakia), Runcorn (United Kingdom), Milano (Italy), Velizy villacoublay(France), Johannesburg(Republic of South Africa) YOKOGAWA AMERICA DO SUL S.A. Headquarters & Plant Praca Acapulco, 31-Santo Amaro, Sao Paulo/SP, BRAZIL CEP-04675-190 Phone: +55-11-5681-2400 Facsimile: +55-11-5681-4434 YOKOGAWA ENGINEERING ASIA PTE.

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