Spirax Sarco SX80 Installation And Maintenance Instructions Manual
  1. Manuals
  2. Brands
  3. Spirax Sarco Manuals
  4. Temperature Controller
  5. SX80
  6. Installation and maintenance instructions manual

Spirax Sarco SX80 Installation And Maintenance Instructions Manual

Pid temperature and pressure controller
Hide thumbs Also See for SX80:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Installation & Maintenance Instructions
3231354/3
Installation and Maintenance Instructions
IM-P323-35 CH Issue 3
SX80 and SX90
Controllers
SX80
SX90
IM-P323-35
1. Installation and basic
operation
2. Step 2: Wiring
3. Safety and EMC
information
4. Switch on
5. Operator level 2
6. Access to further
parameters
7. Controller block diagram
8. Process (temperature or
pressure) input
9. Output parameters
10. Setpoint generator
11. Control
12. Alarms
13. Timer
14. Recipe
15. Digital communications
16. Calibration
17. Access parameters
18. Appendix A technical
specification
19. Parameter index
20. General index
© Copyright 2013
Printed in France
CH Issue 3
1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SX80 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Spirax Sarco SX80

Summary of Contents for Spirax Sarco SX80

  • Page 1 3231354/3 IM-P323-35 CH Issue 3 SX80 and SX90 Controllers Installation and Maintenance Instructions 1. Installation and basic operation 2. Step 2: Wiring 3. Safety and EMC information 4. Switch on 5. Operator level 2 6. Access to further SX80 parameters 7.
  • Page 2 IM-P323-35 CH Issue 3...

  • Page 3: Table Of Contents

    SX80/90 SX80/90 PID Temperature and Pressure Controllers IM-P323-35 SX80 and SX90 PID Temperature and Pressure Controllers IM-P323-35 CH Issue 3 User Manual Part Number 3231354 Issue 7.0 Feb-13 User Manual Part Number 3231354 Issue 3 March 2013 Contents Installation and Basic Operation .................... 5 What Instrument Do I Have? .........................
  • Page 4 OP-5 and OP-6 (Outputs 5 and 6) SX90 only ......................36 9.1.10 OP-3 and OP-4 (Outputs 3 and 4) SX80 only ......................37 9.1.11 Digital Input Parameters LA and LB – SX80 and LB, LC and LD - SX90 ..............38 Setpoint Generator ........................39 10.1 Setpoint Parameters ..........................39 10.1.1...
  • Page 5 SX80/90 11.6 On/Off Control ............................47 11.7 Valve Position Control ........................... 47 11.8 Loop Break ............................. 47 11.9 Cooling Algorithm ..........................47 11.10 Control Parameters ..........................48 11.11 Example: To Configure Heating and Cooling ................. 51 11.11.1 Effect of Control Action, Hysteresis and Deadband ....................52 Alarms ............................

  • Page 6: Access Parameters

    (HOLD.B) is found in the Setpoint list section 10.1. • There are three local setpoints in SX80 and SX90 and the ability to take a remote setpoint in SX90 only. See also level 2 parameter section 5.3 and sections 9.1.11, and 10.

  • Page 7: Installation And Basic Operation

    A universal input accepts various thermocouples, RTDs or humidity 5 to 85% RH non condensing. process inputs. Up to three (SX80) or six (SX90) outputs can The instrument can be mounted on a panel up to 15mm thick. be configured for control, alarm or re-transmission purposes.

  • Page 8: Step 2: Wiring

    SX80/90 Step 2: Wiring Terminal Layout SX80 Controller Ensure that you have the correct supply for your controller Digital Inputs A & B IO1 Relay Output Output 3 Normally open relays Output 4 Output 2 Analogue 4-20mA Line Supply 100 to 230Vac +15% Sensor input R = 2.49Ω...

  • Page 9: Wire Sizes

    Positive • Calibration accuracy: < +(1% of reading +200μA) Negative Outputs 3 & 4 (OP3/4) SX80 only • Use the correct compensating cable preferably shielded Outputs 3 and 4 are normally open (Form A) relays which share a common connection. They are intended to control 2.5.2...

  • Page 10: Output 3 (Op3) 4-20Ma - Sx90 Only

    SX80/90 SX80/90 2.15 2.15 Digital Inputs A & B – SX80 only Digital Inputs A & B – SX80 only 2.10 2.10 Output 3 (OP3) 4-20mA - SX90 only Output 3 (OP3) 4-20mA - SX90 only These are contact closure inputs which may be configured for These are contact closure inputs which may be configured for OP3 is a 4-20mA analogue output in SX90 only.

  • Page 11: General Note About Relays And Inductive Loads

    SX80/90 2.18.1 General Note About Relays and 2.20 Digital Communications Inductive Loads Digital communications uses the Modbus protocol. The High voltage transients may occur when switching inductive interface is EIA422 (5-wire). loads such as some contactors or solenoid valves. Through ☺...

  • Page 12: Wiring Examples

    SX80/90 2.21 Wiring Examples 2.21.1 Pressure Control This example shows a controller connected to a 4-20mA pressure control valve. Contactor Auxiliary Controller fuse circuit fuse Alarm relay SX80 4-20mA pressure control valve 2.49Ω 4-20mA input from pressure transducer Safety requirements for permanently connected equipment state: •...

  • Page 13: Cascade Control Temperature/Pressure

    Temp Remote SP 4-20mA control input output 2.49Ω Control valve Note: SX80 setting using Quick Code 12345 = PHXXE Pressure control 4-20mA 4-20mA output SX90 setting using Quick Code 1 = Select number that matches the range of the pressure transducer 2 = H;...

  • Page 14: Cascade Control Back Pressure/Pressure Reduction

    The objective here is to reduce the steam pressure but not to exceed the output of the boiler. The SX80 is set to the pressure necessary to maintain good boiler operating conditions. If the load exceeds the boiler capacity and the pressure at the boiler drops the control valve closes and maintains a suitable upstream pressure.

  • Page 15: Safety And Emc Information

    SX80/90 Installation Safety Requirements Safety and EMC Information Safety Symbols This controller is intended for industrial temperature and process control applications when it will meet the Various symbols may be used on the controller. They have requirements of the European Directives on Safety and EMC.
  • Page 16 SX80/90 Conductive pollution Installation requirements for EMC Electrically conductive pollution must be excluded from the To ensure compliance with the European EMC directive cabinet in which the controller is mounted. For example, certain installation precautions are necessary as follows: carbon dust is a form of electrically conductive pollution. To •...

  • Page 17: Switch On

    SET 1 1. Input type, range and DP 2. Control type and I/O 3. IO1 alarm relay OP4 alarm relay (not if 5. Language SX80 and VP) Manual Latching Manual Latching X Unconfigured P PT100 99.9 to 300.0 D Boundless VP, on...

  • Page 18: To Re-Enter Quick Code Mode

    SX80/90 To Re-Enter Quick Code mode Pre-Configured Controller or Subsequent Starts If you need to re-enter the ‘Quick Configuration’ mode this can always be done as follows:- After the brief start up sequence the quick start codes are Power down the controller normally shown.

  • Page 19: Alarms

    SX80/90 4.4.2 Alarms 4.4.3 Alarm Indication Up to two process alarms may be configured using the If an alarm occurs, the red ALM beacon will flash. A Quick Start Codes section 4.1.1. Each alarm can be scrolling text message will describe the source of the alarm.

  • Page 20: Auto, Manual And Off Mode

    SX80/90 4.4.5 4.4.6 Auto, Manual and Off Mode To Select Auto, Manual or Off Mode ▼ ▲ The controller can be put into Auto, Manual or Off mode – Press and hold (Mode) together see next section. for more than 1 second.

  • Page 21: Level 1 Operator Parameters

    SX80/90 Operator Level 2 4.4.7 Level 1 Operator Parameters Level 2 provides access to additional parameters. Access to A minimal list of parameters are available in operator Level these is protected by a security code. 1 which is designed for day to day operation. Access to these parameters is not protected by a pass code.
  • Page 22 SX80/90 Mnemonic Scrolling Display and description Range WKG.SP WORKING SETPOINT is the active setpoint value and appears when the Settable between SP.HI to controller is in Manual mode. It may be derived from SP1 or SP2, or, if the SP.LO controller is ramping (see SP.RRT or SP.FRT), it is the current ramp value.
  • Page 23 SX80/90 Mnemonic Scrolling Display and description Range The next section applies to Alarms only see also section 12. If an alarm is not configured the parameters do not appear. A1.--- ALARM 1 (2, 3 or 4) SETPOINT - sets the threshold value at which an SP.HI to SP.LO...

  • Page 24: Soft Start Timer

    SX80/90 Soft Start Timer If the controller is configured for PID, Soft Start limits the output power for a fixed duration after power up or when the controller is changed from configuration level to an operator level or when the timer is set to Run. When the timer is running the RUN beacon is illuminated.

  • Page 25: Access To Further Parameters

    SX80/90 Access to Further Parameters 6.1.2 Configuration Level This level makes available all parameters including the Parameters are available under different levels of security operational parameters. It is used to set up additional and are defined as Level 1 (Lev1), Level 2 (Lev2), Level 3 functions in the instrument which are not available in the (Lev 3) and Configuration (C on f).

  • Page 26: To Select Access Level 3 Or Configuration Level

    SX80/90 6.1.3 To Select Access Level 3 or Configuration Level Do This The Display You Should See Additional Notes From any display press and To Select Level 3 The display will pass from the current operating level, for example, Lev 1 to Lev 3 as the...

  • Page 27: Parameter Lists

    6.2.1 To Choose Parameter List Headers The scrolling banner is only shown once after the parameter is first accessed. (Views are shown for SX80 controllers). Press . Each list header is selected in turn every time this key is pressed.

  • Page 28: Navigation Diagram

    Section 17 In SX80 controllers some lists are not available, for example Output 5, Output 6, and Digital Communications. In SX80 Logic Inputs A and B are available, Logic Inputs C and D are not available . IM-P323-35: Part No 3231354 Issue 7.0...

  • Page 29: Controller Block Diagram

    For SX80 Outputs 5 and 6, Digital and Communications are measured by the sensor and compared with a Setpoint (SP) not available. Digital input A and B is available in SX80. set by the user. Digital inputs B, C and D are available in SX90.

  • Page 30: Process (Temperature Or Pressure) Input

    SX80/90 Process (Temperature or Pressure) Input Parameters in the input list configure the input to match your sensor. These parameters provide the following features:- Input Type and Thermocouple (TC) and 3-wire resistance thermometer (RTD) temperature detectors linearisation Linear input (-10 to +80mV). mA assumes a 2.49Ω external shunt.

  • Page 31: Input Types And Ranges

    SX80/90 INPUT LIST ‘ I N P U T ’ Name Scrolling Display Parameter Description Value Default Access Level S B . typ SENSOR BREAK Defines the action which is applied to No sensor break will be Conf TYPE the control output if the sensor breaks...

  • Page 32: Operation Of Sensor Break

    SX80/90 8.1.2 Operation of Sensor Break Sensor break type (SB.TYP) can be set to operate in three different modes:- Latching SB.TYP = Off Type of Output Output in Sensor Break Alarm State For heat + cool, OP.HI and OP.LO can be set OP.HI (100%)

  • Page 33: Pv Offset

    SX80/90 8.1.3 8.1.4 PV Offset PV Input Scaling All ranges of the controller have been calibrated against Input scaling applies to the linear mV input range only. This traceable reference standards. This means that if the input is set by configuring the INPUT TYPE parameter to mV and type is changed it is not necessary to calibrate the controller.

  • Page 34: Output Parameters

    Press to select the next list header IO-1. Relay Output List (IO-1) - SX80 and SX90 This is supplied as a normally open relay. Connections are made to terminals 1A and 1B. Using the Quick Start Codes this output can either be disabled or configured as an alarm. In Conf level it can be re-configured as raise or lower output for valve position.

  • Page 35: Remote Digital Setpoint Select And Remote Fail

    SX80/90 9.1.1 Remote Digital Setpoint Select and 9.1.5 Example: To Configure IO-1 Relay to Remote Fail Operate on Alarms 1 and 2:- These parameters are associated with the retransmission of Do This Display Additional remote setpoint through master comms (see section 15.4).

  • Page 36: Output List 2 (Op-2) - Sx 80 And Sx90

    Output List 2 (OP-2) - SX 80 and SX90 Press to select OP-2. This is a mA output which is available on terminals 2A and 2B of both SX80 and SX90. It can be configured in Conf level as 0- 20 or 4-20mA. OUTPUT LIST 2 ‘op -2’...

  • Page 37: Aa Relay (Aa) (Output 4) - Sx90 Only

    4.SRC.D I/O 4 SOURCE D nw.AL Any new alarm Ct.AL CT alarm, load, leak & overcurrent This parameter is not applicable to SX80/90. Loop break alarm Sensor break alarm t.End Timer end status t.run Timer run status Manual status rmt.F Remote fail - see section 9.1.1.

  • Page 38: And Op-6 (Outputs 5 And 6) Sx90 Only

    In Conf level, however, they can be re-configured as a heat or cool outputs, if control type is PID or on/off, or additional alarms (alarms 3 and 4, for example). Outputs 5 and 6 have the same function as Outputs 3 and 4 in the SX80. OP5 or OP6 RELAY ‘op5’ ‘op6’...

  • Page 39: And Op-4 (Outputs 3 And 4) Sx80 Only

    SX80/90 9.1.10 OP-3 and OP-4 (Outputs 3 and 4) SX80 only to select OP-3 and again to select OP-4. Press Outputs 3 and 4 are two single relays connected to terminals AA, AB, and AC - AB being common to both relays.

  • Page 40: Digital Input Parameters La And Lb - Sx80 And Lb, Lc And Ld - Sx90

    In SX90, digital input B is available on terminals LB/LC, digital input C on terminals 4A/4C and digital input D on terminals 4B/4C. They are not isolated from the sensor input. LC and LD in SX90 and LA and LB in SX80 are not isolated from each other since they share a common terminal (4C and LC respectively).

  • Page 41: Setpoint Generator

    SX80/90 Setpoint Generator Press to select sp. The setpoint generator provides the target value at which it is required to control the process. It is shown in the controller block diagram, section 7. The following functions are available:- Number of setpoints Three - setpoint 1 (SP1), setpoint 2 (SP2) or setpoint 3 (SP3).
  • Page 42 SX80/90 SETPOINT LIST ‘SP’ Name Scrolling Parameter Description Value Default Access Display Level transmitted at 4 and 20mA – if the setpoint is only R op. lo SETPOINT Sets the lower limit for the setpoint outside this range then it is clipped.

  • Page 43: Examples

    SX80/90 10.1.1 Examples The following four examples show the working setpoint for various settings: Setpoint Type Setpoint select = SP1 SP1 = 100 Remote setpoint = 60 Ratio = 1 Bias = 0 Working setpoint = 100 Remote SP has no effect Working setpoint = Remote SP taken from a 0-10V external source eg 60.

  • Page 44: Servo To Pv

    By default the controller is set to servo to PV. This means, in general, that whenever the setpoint is changed the new setpoint takes the current value of the PV, then ramps at the chosen rate to the requested setpoint. In SX80 and SX90 there are some exclusions...

  • Page 45: Example 2, Changes Writing Directly To The Target Setpoint (Tgtsp)

    SX80/90 10.2.2 Example 2, changes writing directly to the Target Setpoint (TgtSP) Initial settings: Process Variable (PV) fixed at 50. Rising and Falling Ramp Rate to any value (other than OFF). Working SP Target SP (TgtSP) TgtSP = 10 TgtSP changed TgtSP changed to TgtSP increased to 30.

  • Page 46: Holdback

    SX80/90 10.3 Holdback Holdback freezes a ramping setpoint if the Process Variable (PV) does not follow the ramp. This is generally due to the ramp rate being set too fast for the process to follow. By keeping the PV and the SP close to the same value, ensures that the dwell period starts at the correct temperature (generally referred to as guaranteed soak).

  • Page 47: Control

    SX80/90 Control 11.2 Tuning In tuning, you match the characteristics (PID parameters) of Parameters in this section allow the control loop to be set up the controller to those of the process being controlled in for optimum control conditions. An example of a order to obtain good control.

  • Page 48: How To Tune

    SX80/90 11.2.2 How To Tune 11.2.4 Manual Tuning If for any reason automatic tuning gives unsatisfactory Set the setpoint to the value at which you will results, you can tune the controller manually. There are a normally operate the process.

  • Page 49: Integral Action And Manual Reset

    (UP) or the close direction (dwn) via a reversing motor drive. It operates in boundless (SX80 and SX90) or bounded (SX90 only) mode. It does not require a feedback from a...

  • Page 50: Control Parameters

    On/Off applications, Ch1 is usually the heating Boundless Valve position control channel, Ch2 is the cooling channel. bmtr Bounded Valve position control not available in SX80. C TR L. C COOLING TYPE Cooling disable As Quick Conf Start Code Selects the channel 2 Control algorithm.
  • Page 51 SX80/90 CONTROL LIST ‘C TR L’ Parameter Parameter Description Value Default Access Name Level (Scrolling Display) O P. H I OUTPUT HIGH 0 to 100% if control type is valve position or heat 100.0% only. Adjust to limit the maximum heating power applied to the process +100.0% if control type is heat/cool...
  • Page 52 SX80/90 CONTROL LIST ‘C TR L’ Parameter Parameter Description Value Default Access Name Level (Scrolling Display) none none F.M O D FORCED MANUAL OUTPUT MODE Transfer between Auto/Manual/Auto is bumpless Selects how the loop behaves on transfer from Auto to Manual.

  • Page 53: Example: To Configure Heating And Cooling

    Heating Type on.of On/Off control. No heating output configured. bmtr Bounded Valve position control not available in SX80. Boundless valve position control. Cooling Type choices are:-  Press to select ‘C T R L . C ’...

  • Page 54: Effect Of Control Action, Hysteresis And Deadband

    SX80/90 11.11.1 Effect of Control Action, Hysteresis and Deadband For temperature control ‘CONTROL ACTION’ will be set to ‘ ’. For a PID controller this means that the heater power decreases as the PV increases. For an on/off controller output 1 (usually heat) will be on (100%) when PV is below the setpoint and output 2 (usually cool) will be on when PV is above the setpoint Hysteresis applies to on/off control only.

  • Page 55: Alarms

    SX80/90 Alarms Alarms are used to alert an operator when a pre-set level has been exceeded. They are indicated by a scrolling message on the display and the red ALM beacon. They may also switch an output– usually a relay (see section 12.1.1) –...

  • Page 56: Types Of Alarm

    SX80/90 SX80/90 12.1 Types of Alarm 12.1 Types of Alarm This section shows graphically the operation of different types of alarm used in the controller. The graphs show changes in This section shows graphically the operation of different types of alarm used in the controller. The graphs show changes in temperature plotted against time.

  • Page 57: Alarm Relay Output

    SX80/90 12.1.1 Alarm Relay Output 12.1.3 To Acknowledge An Alarm Alarms can operate a specific output (usually a relay). Any individual alarm can operate an individual output or any  Press together. combination of alarms, up to four, can operate an individual output.

  • Page 58: Behaviour Of Alarms After A Power Cycle

    SX80/90 12.2 Behaviour of Alarms After a Power 12.2.2 Example 2 Cycle Alarm configured as Absolute Low; Blocking: Manual Latching The response of an alarm after a power cycle depends upon the latching type, whether it has been configured to be a blocking alarm, it's state and the acknowledge status of the alarm.

  • Page 59: Alarm Parameters

    SX80/90 12.3 Alarm Parameters Four alarms are available. Parameters do not appear if the Alarm Type = None. The following table shows the parameters to set up and configure alarms. ALARM LIST ‘ALARM ’ Name Scrolling Display Parameter Description Value...

  • Page 60: Example: To Configure Alarm 1

    SX80/90 12.3.1 Example: To Configure Alarm 1 Enter configuration level as described. Then:- Do This The Display You Should See Additional Notes Press as many times as necessary to select ‘ALARM’ ALARM Alarm Type choices are:-  Press to select ‘A1.TYP’...

  • Page 61: Diagnostic Alarms

    SX80/90 12.4 Diagnostic Alarms Diagnostic alarms indicate a possible fault within the controller or connected devices. Display shows What it means What to do about it E.Conf A change made to a parameter takes a finite time to be Enter configuration mode then return to the required entered.

  • Page 62: Timer

    SX80/90 Timer A timer can be disabled or configured to operate in Soft Start mode. The timer can be configured in Level 2 (also 3 and Conf). Operation of the timer has been described in section 5.4. 13.1 Timer Parameters The full list of all available parameters in configuration level is given in the following table.

  • Page 63: Recipe

    SX80/90 Recipe A recipe, available in Level 3, can take a snapshot of the current values and store these into a recipe number. This helps to reduce set up time, for example, where a number of different products are to made which require different parameter values.

  • Page 64: To Save Values In A Second Recipe

    SX80/90 14.3 To Save Values in a Second Recipe In this example the proportional band will be changed and stored in recipe 2. All other values will remain the same as recipe 1:- Do This The Display You Should See...

  • Page 65: Digital Communications

    SX80/90 Digital Communications Digital Communications (or ‘comms’ for short) is available in SX90 only. It allows the controller to communicate with a PC or computer system. This product conforms to MODBUS RTU protocol a full description of which can be found on www.modbus.org.

  • Page 66: Example To Set Up Instrument Address

    SX80/90 15.3 Example To Set Up Instrument Address This can be done in operator level 3:- Do This The Display you should see Additional Notes Scrolling display ‘c om m s lis t ’ Press as many times as necessary to select ‘COMMS LIST’...

  • Page 67: Broadcast Communications

    * even when broadcast master communications is In common with most instruments in its class, the operating. SX80/90 Range uses a non-volatile memory with a limited number of specified writes. Non-volatile memory is used to hold information that must be retained over a power...

  • Page 68: Eeprom Write Cycles

    An example of this is where event alarms are used to provide an on/off control loop. SX80/90 instruments should on no account be used in this manner since the toggling of the output will rapidly use up the 100,000 writes. The On/Off control in the PID algorithm should be used instead.

  • Page 69: Data Encoding

    SX80/90 15.5 DATA ENCODING ☺ Note that the iTools* OPC server provides a straightforward means of accessing any variable in the controller in the correct data format without the need to consider data representation. However if you wish to write...

  • Page 70: Parameter Modbus Addresses

    SX80/90 15.6 Parameter Modbus Addresses Parameter Parameter Name Modbus Mnemonic Address PV.IN PV (Temperature) Input Value (see also Modbus address 203 which allows writes over Modbus to this variable). TG.SP Target Setpoint. NB – do not write continuously changing values to this variable. The memory technology used in this product has a limited (100,000) number of write cycles.
  • Page 71 SX80/90 Parameter Parameter Name Modbus Mnemonic Address N.HI Valve nudge raise 0 - No; 1 - Yes N.LO Valve nudge lower 0 - No; 1 - Yes POTP.1 Channel 1 valve position POTB.1 Potentiometer break 1 - on 0 - off...
  • Page 72 Parameter Parameter Name Modbus Mnemonic Address RC.PV Calculated rate of change of the temperature or process variable in engineering units per minute. Home Home Display. 5 – PV and Load Current 0 – Standard PV and SP display 6 – PV only 1 –...
  • Page 73 SX80/90 Parameter Parameter Name Modbus Mnemonic Address A2.STS Alarm 2 Status (0 = Off, 1 = Active) A3.STS Alarm 3 Status (0 = Off, 1 = Active) A4.STS Alarm 4 Status (0 = Off, 1 = Active) REC.NO Recipe to Recall...
  • Page 74 Parameter Parameter Name Modbus Mnemonic Address uCAL User Calibration Enable A1.TYP Alarm 1 Type 3 – Deviation High 0 – Off 4 – Deviation Low 1 –Absolute High 5 – Deviation Band 2 – Absolute Low A2.TYP Alarm 2 Type (as Alarm 1 Type) A3.TYP Alarm 3 Type...
  • Page 75 SX80/90 Parameter Parameter Name Modbus Mnemonic Address 1 – Yes (start cal) Note values 2-4 cannot be written but are status returns only 2 – Cal Busy Analogue Output Calibration Value POT.L Potentiometer low point calibration 2 - Down 0 - Rest...
  • Page 76 SX80/90 Parameter Parameter Name Modbus Mnemonic Address L.SENS (LD) Configures the polarity of the logic input channel D (0 = Normal, 1 = Inverted) (SX90 only) 12409 Comms Module Type 3 – EIA422 12544 0 – None 4 – Remote setpoint input...
  • Page 77 SX80/90 Parameter Parameter Name Modbus Mnemonic Address 3.ID Output 3 Type 3 – DC OP 12800 0 – None 3.FUNC Output 3 Channel function 11 – DC Output Heat 12803 0 – None (or Telemetry Output) 12 – DC Output Cool 1 –...

  • Page 78: Calibration

    SX80/90 Calibration The following adjustments can be made:- Offset the input to compensate for known errors in the sensor. Calibration of the feedback potentiometer for valve position control. Both of these adjustments are available to the user, since they may be made during the commissioning phase or, for example, when a sensor is changed.

  • Page 79: To Apply A Two Point Offset

    SX80/90 16.1.2 To Apply a Two Point Offset Assume the instrument is set up (as described in section 8.1.4.1) to display 0.0 for an input of 4.00mV and 500.0 for an input of 20.00mV. Assume that a particular sensor in use has known errors such that the instrument is required to read 8.0 for an input of 4.00mV and 490.0 for an input of 20.00mV.

  • Page 80: Feedback Potentiometer (Valve Position Control)

    SX80/90 16.2 Feedback Potentiometer (Valve Position Control) A feedback potentiometer may be connected to SX90 only to provide indication of the position of the valve. For bounded mode the potentiometer is necessary to control the position of the valve. In boundless control it is not necessary for control purposes but it can be used to provide indication of the valve position on the front panel meter.

  • Page 81: Input Calibration

    SX80/90 16.3 Input Calibration The controller is calibrated during manufacture using traceable standards for every input range. It is, therefore, not necessary to calibrate the controller when changing ranges. Furthermore, the use of a continuous automatic zero correction of the input ensures that the calibration of the instrument is optimised during normal operation.

  • Page 82: To Verify Thermocouple Input Calibration

    SX80/90 16.4.3 To Verify Thermocouple Input Calibration Connect a milli-volt source, traceable to national standards, to terminals V+ and V- as shown in the diagram below. The mV source must be capable of simulating the thermocouple cold junction temperature. It must be connected to the instrument using the correct type of thermocouple compensating cable for the thermocouple in use.

  • Page 83: To Re-Calibrate An Input

    SX80/90 16.5 To Re-calibrate an Input If it considered necessary to calibrate the input or output this can only be carried out in configuration level. In SX series instruments, inputs which can be calibrated are:- • mV Input. This is a linear 80mV range calibrated at two fixed points. This should always be done before calibrating either thermocouple or resistance thermometer inputs.

  • Page 84: To Calibrate Thermocouple Input

    SX80/90 16.5.2 To Calibrate Thermocouple Input Thermocouples are calibrated, firstly, by following the previous procedure for the mV ranges, then calibrating the CJC. Connect a mV source as described in section 16.4.3. Set the mV source to ‘ internal compensation’ for the thermocouple in use and set the output for 0mV .

  • Page 85: To Calibrate Rtd Input

    SX80/90 16.5.3 To Calibrate RTD Input The two points at which the RTD range is calibrated are 150.00Ω and 400.00Ω. Before starting RTD calibration: • A decade box with total resistance lower than 1K must be connected in place of the RTD as indicated on the connection diagram in section 16.4.4 before the instrument is powered up .

  • Page 86: To Calibrate Remote Setpoint Input

    SX80/90 16.5.4 To Calibrate Remote Setpoint Input Current Connect a milli amp source to terminals RI and RC as shown. Controller Source Copper cable Select Conf Level as described in Chapter 2, then:- Operation Do This Display View Additional Notes Select the Scrolling display ‘CALIBRATION...

  • Page 87: Output Calibration

    16.6.1 To Calibrate mA Outputs Output 2 SX80 and SX90 and Output 3 SX90 only are supplied as mA outputs. The outputs may be adjusted as follows:- Connect an ammeter to the output – terminals 2A/2B or 3A/3B (SX90) as appropriate.

  • Page 88: To Return To Factory Calibration

    SX80/90 16.7 To Return to Factory Calibration It is always possible to revert to the factory calibration as follows:- Operation Do This Display View Additional Notes Select the calibration From the ‘CAL’ list header press n o n e phase ...

  • Page 89: Calibration Parameters

    SX80/90 16.8 Calibration Parameters The following table gives the parameters available in the Calibration List. User Calibration is available in Level 3 only and is used to calibrate ‘Offset’ and feedback potentiometer see sections 16.1 & 16.2. CALIBRATION PARAMETER LIST ‘cA L’...

  • Page 90: Access Parameters

    SX80/90 Access Parameters The following table gives a summary of the parameters available under the ACCESS list header ☺ The Access List can be selected at any time when in configuration level. Hold key down for more than 3 seconds, then ▲...

  • Page 91: Home Display Configuration

    SX80/90 METER To configure the analogue meter to Meter display disabled Conf m e te r CONFIGURATION indicate any one of the parameters HEAT Heat Output demand listed. See section 17.1.4 This is only applicable to SX90 COOL Cool output demand controllers.

  • Page 92: Meter Configuration

    SX80/90 17.1.4 Meter Configuration HEAT The meter shows a representation of the heat output being applied by the control loop to the 100% load. It is scaled between 0 and 100% full scale deflection. COOL If the controller is configured for cool output only, the meter shows a representation of the cool -50% output being applied by the control loop to the load where fully right is -100%.

  • Page 93: Appendix A Technical Specification

    Contact closure or Contact open >1200Ω Contact closed <300Ω Logic LB 12Vdc at 12mA; LC/LD 12V at 6mA - SX90 only LA 12Vdc at 12mA; LB 12V at 40mA - SX80 Outputs Relay Form A (Normally open) Min: 12V, 100mA dc Max: 2A, 264Vac resistive...
  • Page 94 Dimensions and weight 48W x 48H x 90Dmm (1.89W x 1.89H x 3.54D in) 8.82oz (250g) Power Supply 100 to 230Vac +15%. 48 to 62Hz. SX80 6 Watts max, SX90 9 Watts max. Fusing Fit a 2A type T fuse in line with this controller Temperature and RH Operating: 32 to 131°F (0 to 55°C), RH: 5 to 85% non-condensing.

  • Page 95: Parameter Index

    SX80/90 Mnemonic Parameter Location Parameter Index Description CJ.TYP CJC TYPE Input List Section 8.1 This is a list of parameters used in SX series controllers in CJC.IN Input List Section 8.1 alphabetical order together with the section in which they TEMPERATURE are to be found.
  • Page 96 SX80/90 Mnemonic Parameter Location Mnemonic Parameter Location Description Description MV.LO LINEAR INPUT Input List Section 8.1 SETPOINT 1 Setpoint List Section 10.1 SETPOINT 2 Setpoint List Section 10.1 OP.HI OUTPUT HIGH Control List Section 11.10 SETPOINT 3 Setpoint List Section 10.1 OP.LO...

  • Page 97: General Index

    SX80/90 General Index 50, 70 ATUNE 46, 48 Auto 18, 50, 54, 57 1.FUNC Automatic 28, 45, 54, 58, 72 1.PLS 32, 74 AUTO-TUNE ENABLE 45, 48 1.SENS 32, 74 1.SRC.A 32, 74 1.SRC.B 32, 74 1.SRC.C 32, 74 b.tc 1.SRC.D...
  • Page 98 SX80/90 Linear 7, 28, 31, 50, 71, 73 LINEAR INPUT HIGH Fault detection LINEAR INPUT LOW FEATURE PASSCODE 89, 94 Loc.b FILT.T 28, 69 LOCAL SETPOINT TRIM FILTER TIME Logic 38, 69, 73 FORCED MANUAL OUTPUT MODE LOGIC INPUT FUNCTION...
  • Page 99 SX80/90 r.tc T.ELAP 60, 71 21, 48, 68 t.End 32, 35, 36, 37 ramp 20, 41, 42, 44 T.REMN 19, 20, 60, 71 RANGE HIGH LIMIT t.run 32, 35, 36, 37 RANGE LOW LIMIT T.STAT 22, 60, 68 RC.FT t.tc RC.PV...
  • Page 100 IM-P323-35 CH Issue 3...
  • Page 101 IM-P323-35 CH Issue 3...
  • Page 102 IM-P323-35 CH Issue 3...
  • Page 103 IM-P323-35 CH Issue 3...
  • Page 104 IM-P323-35 CH Issue 3...
  • Page 105 IM-P323-35 CH Issue 3...
  • Page 106 IM-P323-35 CH Issue 3...

This manual is also suitable for:

Sx90

Table of Contents

Save PDF