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3750-manual

1. 552 LineTurn Round RS485 circuits are a multi drop half duplex system When a device is transmitting it drives the transmission lines to the appropriate levels when it is not transmitting its outputs are set to a high impedance in order that another device can transmit It is important that a transmitter releases the transmission lines before another device starts transmission This imposes the following restraints on a computer system communicating with the Controller s a The transmitter must release the transmission lines within 6 milliseconds of the end of the last character of a message being transmitted Note that delays due to buffers such as those used in universal asynchronous receivers transmitters UARTs within the computer must be taken into account b The transmitter must not start transmission until at least 6 milliseconds have elapsed since the reception of the last character of a message All WEST Controllers which have an RS485 communications facility adhere to this standard thus provided that the master device conforms similarly to the standard there should be no line contention problems 5 5 3 Communications Protocol All communication is initiated by the mastcr device The master sends a command or query to the addressed slave and the slave replies with an acknowledgement of the command or the reply to the query All messages in either direction comprise a a Start of Message character
2. b Before handling a PCB momentarily touch a convenient earthing point e g a metal bench or rack in order to discharge most of the static electricity stored c Wear a wrist earthing strap 3 The Controller also contains a lithium battery on the CPU Board When removing the CPU Board from the Controller ensure that it is not placed on a conducting surface such contact would short circuit the battery IF TT IS REQUIRED TO REPLACE THE BATTERY THIS OPERATION SHOULD BE PERFORMED BY A TRAINED TECHNICIAN 6 1 1 Withdrawing the Controller from its Housing 1 With an appropriate size screwdriver Smm or 3 16 inch flat blade rotate the locking screw at the bottom of the Controller front panel in an anti clockwise direction to disengage the Controller back connectors from their sockets in the housing Continue rotating the locking screw anti clockwise until the screw is free from its bush in the Controller housing 2 Gently withdraw the Controller from its housing 6 1 2 Separating the PCBs if an Options Board is Fitted If the Controller has an Options Board fitted it will be necessary to separate the two PCBs the CPU Board and the Options Board in order to gain access to the link jumpers This is achieved as follows 1 Extract the screw securing the CPU Board on the right hand side as viewed from the front of the Controller to the bracket attached to the Controller front panel assembly 2 Grasp the guides projecting rear
3. 42 PROFILE DATA When Profile Data is selected the Controller will display the first in the Profile Data display sequence The full sequence is as follows If the Rate ramp programming method If the Time ramp programming method has been selected see Subsection 4 4 has been selected see Subsection 4 4 FSP Final set point value for Ramp 1 FSP Final set point value for Ramp 1 rtrl Rate per hour change for Ramp 1 E r Time duration for Ramp 1 EL Event Output state during Ramp 1 Etr Event Output state during Ramp 1 L d Time duration of Dwell 1 L d Time duration of Dwell 1 Etd Event Output state for Dwell 1 Ftd l Event Output state for Dwell 1 FSP Final set point value for Ramp 2 FGA Final set point value for Ramp 2 rire Rate per hour change for Ramp2 L pg Time duration for Ramp 2 Etre Event Output state during Ramp 2 Etre Event Output state during Ramp 2 L de Time duration for Dwell 2 L de Time duration for Dwell 2 ELd Event Output state for Dwell 2 Ftd Event Output state for Dwell 2 E Nate of els oF he rot Displayed only if Event Output option is fitted and enabled A typical profile is illustrated in Figure 4 1 and comprises two ramps and two dwell periods which are defined using these parameters 4 2 February 1990 IM0039 4 IM 0039 3750 Programmer Controller Section 4 Installation and Operating Instructions Setting up Procedures Defined by FSP a
4. Table 5 5 data Field Format Decimal Point Posn First Four Digits Fifth Digit abcd 0 abc d 1 ab cd 2 a bed 3 a b c d 4 abcd 5 These values indicate that abc d 6 default parameter values are prae 7 being used a bcd 8 a b c d 9 5 10 February 1990 IMO039 5 IM 0039 3750 Programmer Controller Section 6 installation and Operating Instructions Re configuration SECTION 6 RANGE CHANGING AND RE CONFIGURATION It is possible to change the range of an input or output and to re configure the Model 3750 Controller by means of changing the positions of link jumpers on the CPU Board and if fitted the Options Board In order to gain access to these link jumpers it is necessary to dismantle the Controller NOTE The range changing and re configuration operations described in this Section are confined to those which can be achieved by simply changing the positions of the appropriate link jumpers It is not possible to change from one type of input to another or from one type of output to another without changing the Boards 61 DISMANTLING THE CONTROLLER CAUTION 1 Before starting the dismantling ne ensure that the mains line supply has been disconnected 2 The Controller contains devices which are vulnerable to damage from electrostatic discharge In order to minimise the risk of such damage certain precautions are recommended a Never touch the tracks or components except for link jumpers on the PCBs
5. P data N Type 4 Message L N P or R N P I This is sent by the master to the addressed controller following a successful Type 3 message transmission and reply to from the same controller Provided that the data content and the parameter specified in the preceding Type 3 message are still valid the controller will then set the parameter to the desired value and will reply with L N P data A or R N P data A where data is the new value of the parameter If the new value or parameter specified is invalid the controller will replay with a negative acknowledgement L N P data N or R N P data N where data is the current unaltered value of the parameter If the immediately preceding message received by the controller was not a Type 3 message the Type 4 message is ignored A leaflet giving further details of software requirements and suggestions for programs to be implemented on the master is available on request from your nearest West Division IM0039 5 February 1990 5 5 Section 5 RS485 Communications Link Parameter identifier A B C D E F O 4 9 0 o v US W X and Y FA 3750 Programmer Controller IM 0039 installation and Operating Instructions Table 5 2 Parameters Start Character L Parameter Set Point Maximum Output 1 Power Limit Alarm Value Derivative Time Constant On Off Output 2 Value On Off Differential Scale Range Maximum Scale Rang
6. b one or two address characters defining the slave c a parameter data string and d an End of Message character Messages from the master may be one of four types IMOO39 5 February 1990 5 3 Section 5 3750 Programmer Controller IM 0039 RS485 Communications Link installation and Operating Instructions Type 1 L N Type 2 L Nj P C Or R N P C Type 3 L N P data or R N P data Type 4 L N P I Or R N P I where all characters are in ASCII code and LorR is the Start Character Hex 4C or 52 N is the slave controller address in the range 1 32 addresses 1 9 may be represented as a single digit e g 7 or in two digit form the first digit being a leading zero e g 07 P is the parameter to be interrogated or modified Hex 41 5D see Tables 5 2 and 5 3 C Is the command see below indicates that data is to follow Hex 23 data is a numeric data string in ASCII code see Table 5 5 is the End Character Hex 2A No spaces are permitted in messages Type 1 Message L N This is used by the master device to determine whether a slave controller is active The reply from the addressed controller if it is active is L N A An inactive controller will give no reply Type 2 Message L N P C or R N P C This is used by the master device to interrogate or modify a parameter in the addressed controller P is the paramet
7. 87172 Fax 44 0 273 609990 CAUTION REFER TO MANUAL THE INTERNATIONAL HAZARD SYMBOL IS INSCRIBED ADJACENT TO THE REAR CONNECTION TERMINALS IT IS IMPORTANT TO READ THE MANUAL BEFORE INSTALLING OR COMMISSIONING THE UNIT GULTON S A 58 Rue Gounod 02210 Saint Cloud France Tel 33 1 4602 2533 Telex 042 200266 Fax 33 1 4602 4004 WEST INSTRUMENTS Mark IV Vertriebs GmbH L rchenstrasse 99 6230 Frankfurt 80 Germany Tel 069 3801034 Telex 041 413847 Fax 069 386959 WEST INSTRUMENT Guiton Industries Inc Route 2 and Middle Road East Greenwich Rhode Island 02818 0962 U S A Tel 1 401 884 6800 Fax 1 401 884 4872 Twx 701 387 1500 Subsidiaries of MARK IV IM 0039 3750 Programmer Controller Installation and Operating Instructions WEST 3750 PROGRAMMER CONTROLLER INSTALLATION AND OPERATING INSTRUCTIONS IM 0039 A0 Gulton Limited 1990 NOTE Our policy is one of continued improvement and consequently the information contained in this publication may differ in some respects from the instrument in question Therefore this document does not constitute an offer or part of an offer for sale Table of Contents Section Title 1 Introduction 1 1 Operator Controls and Indicators 1 2 Options and Variants 2 Installation 2 1 Unpacking Procedure 2 2 Panel mounting a Standard Controller 23 Panel mounting a Controller with a Remote Front Panel 24 Removal of the Controller from its Ho
8. Auto Mode Manual Mode 2 If the Controller is in Auto Mode depress the FUNC key until the upper display shows HbrE 3 Depress the Run Time key The profile is instantly aborted and the Controller will display the process variable value in the upper display the lower display will show Hbr L 4 Depress the Raise key or the Lower key to return to Normal Display Mode 3 8 6 Jumping to the Next Segment of a Currently Running Profile With the Controller in Auto Mode and currently cxecuting a profile a jump from the current segment of the profile to the next segment may be implemented as follows 1 Depress the Run Time key The Controller will display hULd YE or 2 Depress the FUNC key until the upper display shows ul IP 3 Depress the Run Time key The Controller will immediately advance the profile to the start of the next segment and an exit will be made from Run Time Mode 3 8 7 Making an Exit from Run Time Mode When an exit is made from Run Time Mode the Controller displays return to the status active immediately prior to the selection of Run Time Mode with the following exceptions a Upon selecting Manual Mode the displays will show the process variable value upper display and the percentage power output lower display b Upon selecting Auto Mode the Controller will always return to Normal Display Mode IMO039 3 February 1990 3 7 Section 3 3750 Programmer Controlier IM 0039 Operating instruct
9. Connections 2 6 11 RS485 Compatible Serial Communications Link Controllers which are fitted with the RS485 Communications Option j e Product Code X06 use terminals 10 11 and 12 as shown in Figure 2 22 Controllers fittcd with this option arc supplicd configured fur 7 B TX HX slave operation The Controller may be configured for operation as a master device from the front panel see Subsection 4 5 10 The RS485 communications operation is described in Section 5 A A Tx Rx 12 Signal Common e e E d ION ION ad 2 7 INDUCTIVE LOADS EXTERNAL CONTACTORS AND MAINS OPERATED RE LAYS WARNING Operating the Controller with inductive loads and without the appropriate protection components may give rise to a hazard owing to high voltage transients which may occur during the switching cycles Removal of the Controller s internal snubber components could give rise to a serious hazard Gulton Limited and Mark IV Industries do not accept responsibility for any damage which may occur as a consequence f the unauthorised removal of these components 2 7 1 General Notes The standard relay contacts fitted in the Controller are suitable for AC supply voltages in the range 24V to 240V The Output 1 relay is rated at up to 5A with a resistive load and up to 1A with an inductive load The Alarm and Output 2 Event Output relays are rated at up to 2A with a resistive load and up to 1A with an inductive load The Model 3750 Contr
10. The default setting is OFF 4 2 5 Dwell 1 Time t dl This defines the duration of the first dwell soak period in hours and minutes or if the x60 function bY60 is set to YES in minutes and seconds see Subsection 4 5 3 It may be adjusted within the range 0 99 59 selection of a value greater than 99 59 causes the first dwell period to continue indefinitely The default value is 1 00 4 2 6 Dwell 1 Event Output State Etdl This function is applicable only if the Event Output option has been fitted and enabled it defines the state ON or OFF of the Event Output during the first dwell period The default setting is OFF IMOO39 4 February 1990 4 3 Section 4 3750 Programmer Controller IM 0039 Setting up Procedures Installation and Operating Instructions x PS DET NOMINIS III RITIENI OO O A SD OO ROSA O OS ON NR LIP of Output Proportional Band M n eq rgd Relative Gain rCG 1 00 100 Relative Gain rCG 0 50 A O SERIA REIR l aga M Overlap OL positive value Output 2 ARA Process Variable of Output Proportional Band i M a nad Relative Gain rCG 1 00 x i i 2 I 100 Relative Gain rCG 0 50 AMENS y i i l l t t i Output 2 ps E Deadband E OL negative value PIPERIS A ROO OO Process Variable D3 C e RR RN O SA DIRMI II eSI nee rate M MARBRE Paper RR Dette Figure 4 2 Overlap Deadband OP 1 an
11. and status in a single message from the master device The reply to such a command would be in the form L N xx aaaaa bbbbb ccccc ddddd eeeee A where xx indicates the number of data digits to follow this is 20 for an Output 1 Only controller and 25 for an Output 1 and Output 2 controller The data digits are expressed as shown in Table 5 5 and may comprise aaaaa the current value of the set point bbbbb the current value of the process variable CCCCC the current value of Output 1 power 0 100 ddddd the current value of Output 2 power if applicable 0 100 eeeee the controller status as described in Table 5 2 Type 3 Message L N P data or R N P data This message type is used by the master to set a parameter to the value specified in data The command is not immediately implemented by the slave the slave will receive this command and will then wait for a Type 4 message Upon receipt of a Type 3 message if the data content and the specified parameter are valid the slave controller replies with L N P data or R N P data indicating that the controller is ready to implement the command If the parameter character P is not alphabetic the command is ignored If the parameter specified is invalid or is not modifiable or if the desired value is outside the permitted range for that parameter the controller replies with a negative acknowledgement L N P data N or R N
12. in the reply from the controller will be 00010 for ON or 00000 for OFF The state can be changed by sending a Type 3 Type 4 message sequence with data set as required 00010 ON 00000 OFF 3 Programmer Commands Profile control commands are available using Type 3 and Type 4 data set protocol only Using Type 3 protocol the third and fourth digits of the data field must be one of the numbers shown in Table 5 4 the rest of the data field being set to zero The reply will also contain the command number The type 4 message does not contain the command 3750 Programmer Controller installation and Operating Instructions Table 5 3 Parameters Start Character R Parameter Stage Number of modification review Ramp Final Temperature Ramp rate time duration of ramp State of Event Output in ramp e Dwell time duration State of Event Output in dwell Number of profile cycles Number of profile cycles completed Current segment number Not applicable Programmer commands Programmer status 9 Current set point value Current Event Output status Not applicable Not applicable Not applicable Not applicabie Not applicable Not applicable Not applicable Guaranteed Soak Hysteresis value Not applicable Not applicable Not applicable Not applicable NOTES ON TABLE 5 3 1 These parameters are not modifiable whilst a profile is running Modifiable Yes Yes Yes Yes Yes T Yes Yes No No Yes No No No
13. run time control options offered for selection Lower display Normally displays the set point value In Set Up Mode it displays a legend which identifies the profile data control parameter or programmer function being viewed adjusted LED Indicators The 3750 front panel is equipped with seven LEDs which indicate the various output states and Controller functions Controls Four pushbuttons are provided for parameter entry and for selection of Controller functions Full details of the use of these controls and indicators can be found in Section 3 12 OPTIONS AND VARIANTS There is a wide range of options and variants available for the 3750 Controller The variants and options fitted to cach controller are indicated by the product codes shown on the product code label affixed to the side of the controller Full details of the options and variants available and guidance on interpretation of the product code label are given in Appendix B IMOO39 1 February 1990 1 1 IM 0039 3750 Programmer Controller Section 2 installation and Operating Instructions installation SECTION 2 INSTALLATION 2 1 UNPACKING PROCEDURE 1 Remove the controller from its packaging The Controller is supplied with a muunting clamp and two screws If a Remote Front Panel option X74 X75 or X79 has been ordered the package should also contain the remote front panel and the connecting cable with terminating plugs NOTE Retain the packing for future u
14. 22 P X Fitted P Parked Not fitted IMOO39 6 February 1990 6 3 Section 6 3750 Programmer Controller IM 0039 Re configuration Installation and Operating Instructions SE tote aura CN AA ANS A A Cd O SR e RR AR O COO x RR RE ER ts L D D mts PPPN O AA E ed N Vr 6 2 2 RTD Inputs A Controller equipped with an RTD Input may be re configured to a different RTD Input by changing link jumpers on the CPU Board see Figure 6 3 in accordance with the information in Table 6 3 Table 6 3 RTD Input Link Jumpers Input CPU Board Link Jumpers Product Code Range LJ5 LJ6 LJ7 LJ8 LJ9 LJ16 T2221 O to 600 C P X X P X P T2222 32 to 1112 F X X X P X P T2229 32 to 572 F X X X P P P T2230 101 0 to 100 0 C P P X X X X T2231 150 0 to 212 0 F X P X X X X T2251 O to 300 C P x X P P P T2295 0 0 to 100 0 C P X P P X X T2296 32 0 to 212 0 F X X P P X X 12297 200 to 205 C P x P X P X T2298 328 to 401 F X X P X P X T7201 101 0 to 300 0 C P X X X xX P T7202 150 to 572 F X X X X X P X Fitted P Parked 6 4 February 1990 IMOO39 6 M 0039 3750 Programmer Controller Section 6 Installation and Operating Instructions Re configuration 6 2 3 Linear Inputs In a Controller which has a Linear Input fitted the CPU Board will have components which are specific to that linear input range thercfure only limited re ranging can b
15. 450 Link Jumpers 65 DC OUTPUTS WITHOUT X06 OPTION The DC Output Options Board Type 468 provides a DC output for Output 1 or Output 2 but not both This Board can be supplied with or without Alarm Output When the Alarm Output is fitted the Alarm Output functions are identical to those for the Standard Options Board Type 450 The DC outputs are configured using link jumpers on the DC Output Options Board see Figure 6 5 and Table 6 6 The required Alarm configuration is selected by link jumpers LJ21 LJ22 and LJ23 on the DC Output Options Board as shown in Table 6 5 DC output is selected for Output 1 or Output 2 using link jumpers on the DC Output Options Board see Figure 6 5 and Table 6 6 The range of the DC Output can be changed by moving link jumpers on the Board as shown in Table 6 6 DC Output 1 is reverse acting unless link LJ4 is fitted on the CPU Board see Subsection 6 3 DC Output 2 is direct acting unless link LJ4 is fitted on the CPU Board 6 6 February 1990 IMO039 6 M 0039 3750 Programmer Controlier Section 6 Installation and Operating Instructions Re configuration Table 6 6 Options Board 468 Link Jumper Settings Link Jumpera Product Code LJ20 LJ24 LJ25 LJ26 LJ27 X Fitted H21 e P P X X P Parked H24 X P X X X lt Fit if Controller has H61 P X X X Output 2 C10 or H64 X X X X C50 or Event Output C21 X P P P X C0056 or CO00 56 fitted C24 X X P P X C61 X P X P X C64 X X X P X P
16. 7 OP 2 Alarm Output Link Jumper Settings Link Jumpers Product Code LJ20 LJ24 LJ25 C0000 P P E C1000 X X C0056 or C00 56 X X C5000 X X Coo P X 6 8 February 1990 IM0039 6 IM 0039 3750 Programmer Controlier Section 6 Instailation and Operating Instructions Re configuration 67 DC OUTPUT RS485 COMMUNICATIONS OPTIONS BOARD TYPE 489 This Options Board provides both an RS485 compatible communications link and a DC output for either Output 1 or Output 2 but not both The following combinations are available 1 DC Output 1 Relay Event Output 2 or SSR Output 2 RS485 Communications 2 Relay or SSR Output 1 DC Output 2 RS485 Communications 3 DC Output 1 Alarm Relay RS485 Communications 4 DC Output 1 RS485 Communications The selection of DC Output 1 or DC Output 2 the output ranges and the Alarm function are defined by means of link jumpers on this Options Board Figure 6 7 shows the link jumper positions on the Type 489 Board and Tables 6 8 and 6 9 show the link jumper settings for the various configurations Switch functions are described in Section 5 Viet trt ttt cG A DO PRA tito te A AAA Q Figure 6 7 Options Board 489 Link Jumpers Table 6 8 Options Board 489 DC Output Jumpers Link Jumpers Product Code LJ20 LJ24 LJ25 LJ26 LJ27 LJ21 LJ22 LJ23 H21 a P P ue X S H24 P XA X H61 p X m X See Table 6 9 H64 X X X C2100 P
17. Figure 2 19 Alarm Output Connections COM PS N O A AA RS 2 6 9 Event Output Product Codes C0056 C00 56 The connections for the Event Output are shown in Figure 2 20 Controllers with the Event Output option are supplied configured for Output 2 Cool The Controller may be configured for an Event Output from the Controller front panel see Subsection 4 5 4 sLolelozeretesngotereterererereseteresetateteseseceresenstaferelelesoteretetecoreresefeleratatetarereteleterotuteteletecetetetetecetetetorecetatetetesetatateraetetatetateteraletetetetatatatetatetatatetataletatetatafatefotel DR A nS Controllers with Controllers with DC Output 1 Relay SSR Output 1 Recorder Output E O et N O Soe Common DSS OREN N C RS All other Configurations E 7 AP D D D D 260 d tratarlo TEE aE LON Figure 2 20 Event Output Connections SOAZ E 2 10 February 1990 IMOO39 2 IM 0039 3750 Programmer Controiler Installation and Operating instructions 2 6 10 Recorder Output Product Codes X12 X18 X19 and X20 NOTE This Option is not available with RS485 Communications Product Code X06 Also when this option is fitted it is possible to have only one of Output 2 Event Output or Alarm output The connections for the Recorder Output are shown in Figure 2 21 Section 2 Installation RA x ate Ma a eI CELIA ISO DIRA HU utput D TET EE Figure 2 21 Recorder
18. Figure 2 24 The valucs shown in Table 2 2 may be used for these components Table 2 2 Protection Network Component Values Load Current Value of C uF West Part No Value of R Q West Part No 70mA 0 047 22206 22 23220 304 150mA 0 100 22207 47 23470 304 500mA 0 220 22208 47 23470 304 1A 0 470 22209 47 234 70 304 NOTE All capacitors should conform to VDE Class X and should he suitable for operation at 260V AC All resistors wirewound or Allen Bradley Type HB should have a minimum rating of 2 watts 2 12 February 1990 IMOQ039 2 IM 0039 3750 Programmer Controller Section 3 installation and Operating Instructions Operating instructions SECTION 3 OPERATING INSTRUCTIONS A ar 31 INTRODUCTION ger These instructions are based on the assumption that the Controller has been set up and is in User Mode NAS The set point and process variable values are displayed If the profile is not a running the set point value is adjustable from the front panel The operator 4 may select to start the profile hold or abort the profile if it is currently HHHH running may jump from one segment of the currently running profile to the 0 next or may choose if Auto Manual selection is enabled manual control of OP1 0 MAN the process OP2 9 9 RAMP scr ALM 9 RUN A tances a a es O A ES A N Figure 3 1 3750 Controller Front Panel 3 2 DISPLAYS USER MODE rom rane Profile Not Running
19. I I E i I AAA ARA ARRE OA ARAR AH AR IRRADIA RO RR OS O OS A a OE RR RR UR RUE RUE PA CC EROR LR RIOS O O ERE RO ION IN O D CER M Figure 4 3 Tuning Output 1 Only or VMD Output IMOOSS 4 February 1990 4 11 Section 4 3750 Programmer Controller IM 0039 Setting up Procedures installation and Operating Instructions 443 Controllers Fitted with Output 1 and Output 2 NOTE Before starting to tune the Controller to the load check that Output 1 Power Limit OPhi is set to the required level see Subsection 4 3 12 Set Point Minimum SPLo and Set Point Maximum SPhi are set to safe levels see Subsection 4 3 9 Cycle Times Ct1 Ct2 are set to suitable values see Subsections 4 3 13 and 4 3 14 In addition to the proportional band integral and derivative two more control parameters are provided in the Set Up sequence a Relative Gain rCG b Deadband Overlap OL The relationship between these parameters and the Controller output is illustrated in Figure 4 2 1 Set the overlap to 0 2 Set the relative gain to 1 00 3 With power connected to the heater but with the machine not running perform the tuning method described in Subsection 4 4 1 4 Start the machine and observe the oscillation if any of the process variable about the set point S Follow the instructions in Figure 4 4 4 12 February 1990 IMOO39 4 IM 0039 3750 Programmer Controlier Section 4 Installation and Operating Instructions Setting u
20. P kx X P P P C2400 X P s X P P P C6100 E P x lt 0X P P P C6400 x X X X P P P X Fitted P Parked Fit link LJ20 if Output 1 and Output 2 Event Output are required otherwise park LJ20 Fit link LJ26 if Relay Output 2 Event Output Code C10 C0056 or C00 56 or SSR Output 2 Code C50 is required otherwise park LJ26 IMOO39 6 February 1990 6 9 Section 6 3750 Programmer Controller M 0039 Re configuration installation and Operating Instructions Table 6 9 Option Board LJ Settings for CPU Board O P Link Jumpers Product Code LJ21 LJ22 LJ23 PRO E Output type Relay or SSR is H50 P P P determined by components fitted on C1000 P P P the CPU Board C5000 P P P C0000 P P P Output on the CPU Board not used C0050 X P P Di i Standard Alarm Out ires th tandard Alarm Output requires the este use of a CPU Board with Relay C0047 P X P Out put C0048 X X P C0049 X X X C0056 or C00 56 P P P Requires the use of a CPU Board with Relay output X Fitted P Parked 68 OPTIONS BOARD 496 This Options Board provides the controller with Recorder Output and Relay SSR Output The RS485 Communi cations Link Option is not available when this Options Board is fitted The following combinations are available in addition to the process input and Output 1 1 Alarm or Output 2 Relay or Event Output Relay Recorder Output 2 SSR Output 2 Recorder Output 3 Recorder Output only 4 VMD Out
21. SSR or Event SOMI OP1 or Alarm N O i Epics C CS 3 T Linear RTD Ther Alarm coup e Process input 1 RELAY b NC ope 50 60Hz When DC Output 1 is fitted Product Codes H21 H24 H61 and H64 this is connected to Terminals 17 amp 18 Relay Output 2 C10 Event Output C0056 or C00 56 or Alarm relay COOxx is connected to Terminals 4 5 amp 6 and SSR Output 2 C50 is connected to Terminals 4 amp 5 Figure 2 6 Connections with Recorder O P 2 4 February 1990 IM0039 2 IM 0039 3750 Programmer Controller Section 2 installation and Operating Instructions Installation A NAO NO iiaia OOO EET 2 6 1 Mains Line Input Earth Ground The Controller is supplied to operate on 24V 100 132V or 193 264V AC supplies 50 60Hz Check Line U that the installation mains voltage corresponds to that indicated on the product code label before con N eutral L necting power to the controller N o oa lela ro eo ta Tai Sess naan A tetera ra NAP AAA IIA O A Figure 2 7 Mains Line Supply Connections CAUTION This equipment is designed for installation in an enclosure which provides adequate protection against electric shock Local requirements regarding electrical installation should be rigidly observed Ground terminals must be connected separately and must not be made common with the neutral connection Consideration should be given to the prevention of unauthorised perso
22. be adjusted while the profile is running 4 3 2 Output Power OP This is the Output 1 power level It can only be adjusted in Manual Control Mode otherwise it is a Read Only parameter The adjustment range is 100 to 100 or 0 to 100 on Controllers with Output 1 only This parameter is not available on Controllers which have the VMD Output Option Product Code H70 fitted 4 3 3 Proportional Band Pb The Proportional Band can be set to a value between 0 and 1000 of the span of the controller If the Proportional Band is set to 0 the controller operates in an ON OFF Mode 4 3 4 Integral Time Constant rSEt This can be set to a value between 10 seconds and 30 minutes If the Integral Time Constant is set to a value greater than 30 minutes the upper display goes blank and integral control is disabled This parameter is omitted from the sequence if the Proportional Band is set to 0 4 3 5 Derivative Time Constant rAtE This can be set to a value between 0 seconds and 10 minutes This parameter is omitted from the sequence if Proportional Band 0 4 3 6 Relative Gain rCG This defines the Output 2 gain relative to Output 1 within the Proportional Dand and thc maximum Output 2 outside the Proportional Band It can be set to a value between 02 and 1 00 If rCG gt 1 00 the upper display goes blank and Output 2 operates in an ON OFF mode 4 3 7 Overlap Deadband OL This defines the area within the Proportion
23. been adjusted to the required value return to the normal display mode by depressing the FUNC key 3 7 2 Dwell Set Point Adjustment and Cycle Count Profile Running If the profile is running and dwell set point changes have not been disabled the value of the current profile dwell set point can be temporarily changed as follows 1 Depress the FUNC pushbutton The lower display will show one of the following legends d5P d5Pd First ramp or dwell period Second ramp or dwell period If the profile is cxccuting the first ramp dSP1 is the final valuc of set point for that ramp If the profile is currently in the first dwell period dSP1 is the constant value of set point during that dwell period The parameter dSP2 applies to the second ramp or dwell period in a similar manner The upper display will show the current value of the profile dwell set point 2 Adjust the set point value using the Raise and Lower keys as applicable 3 When the set point is at the required value depressing the FUNC key will either cause a return to the normal display mode or if CYCL gt 1 cause the lower display to show the legend LAN IMOO39 3 February 1990 3 3 Section 3 3750 Programmer Controller IM 0039 Operating Instructions installation and Operating Instructions and the upper display to show the number of cycles of the profile currently completed In the latter case another depression of the FUNC key will cause a return to Normal Display Mo
24. hole in the Options Board into the pillar on the CPU Board and tighten until both boards are secured together Fitting the Boards to the Front Panel Assembly 1 Align the boards with the guides attached to the front panel the CPU Board the one with a transformer should be on the right hand side when viewed from the front Ensure that the plugs on the CPU Board are aligned with the sockets on the front panel assembly 2 Push the boards into the guides until all the tecth on thc boards locate firmly into the holes in the guides 3 Insert the screw made available during the previous dismantling of the Controller through the CPU Board into the bracket attached to the front panel tighten the screw to secure the boards in position Fitting the Controller into the Housing 1 Carefully slide the Controller rear end first into the housing ensuring that the circuit board s locate against the outside of the guides moulded into the top and bottom of the housing 2 Push the Controller firmly into position in order that the rear connectors of the circuit board s make good connection with the terminals at the rear of the housing 3 Engage the locking screw at the bottom of the front panel in its bush in the housing and tighten until the Controller is secured in its housing February 1990 IM 0039 IMO039 6 M 0039 3750 Programmer Controller Appendix A installation and Operating Instructions Specifications APPENDIX A SP
25. hut urnas irent La LR rra A ere ete aeree H e Ln net eerte ftat tete titan att tt II nmt tfft ttt ttt teet Net tetst A A AER AS February 1990 IMON239 4 M 0039 3750 Programmer Controller Section 5 installation and Operating Instructions RS485 Communications Link SECTION 5 OPERATION VIA AN RS485 COMPATIBLE SERIAL COMMUNICATIONS LINK NOTE The Communications Link is not available on Controllers which are fitted with either a the Recorder Output Option or b the Alarm relay output with either Output 2 or the Event Output The WEST Model 3750 Controller may be fitted with the facility for serial communication via an RS485 compatible serial link 5 1 RS485 CONNECTIONS Controllers which are equipped with the RS485 Option use Terminals 10 11 and 12 as described in Subsection 2 7 9 and Figure 2 19 Communication is at 4800 Baud and the cable used should be suitable for data transfer at this frequency and for the distance required The transmitters and receivers in the Controller conform to recommendations contained in EIA Standard RS485 Up to 32 Controllers may be connected in parallel with one master device 5 2 ACTIVATING THE COMMUNICATIONS LINK CONTROLLER OPERATING AS SLAVE For the Controller to operate as a slave the CoM Programmer Function must be set to Std see Subsection 4 5 The two variants of Option Board which provide the RS485 Option are shown in Figures 5 1 Option Board Type 481 and 5 2 Option Board Ty
26. output open loop version Alarm output RS485 compatible serial communications input output Recorder output The connections to the rear terminals are shown in Figure 2 5 for standard Controllers and Figure 2 6 for Controllers fitted with the Recorder Output option IMOO39 2 February 1990 2 3 Section 2 3750 Programmer Controller Installation IM 0039 Installation and Operating Instructions BEE AN INNATA NN MN TR ARAN OTAN EE 2 24V i dd E i E 2 d S ER ROA MER NE NE SR RRA PRE Ne RE NG Er Y E 2 B Tx Rx RS485 OP1 Rina SSR p or Event SSR DC 4 OP2 AR TIN AIS NI OP1 oO kas e 3 O za O m lt D 3 AR r EP d S pe Event Linear RTD Ther coup y Process input 50 60Hz When DC Output 1 is fitted Product Codes H21 H24 H61 and H64 this is connected to Terminals 14 amp 15 Relay Output 2 C10 or Event Output C0056 or C00 56 is connected to Terminals 4 5 amp 6 and SSR Output 2 C50 is connected to Terminals 4 amp 5 If DC Output 1 RS485 Communications and the Alarm Relay option are fitted the Alarm output uses Terminals 4 5 amp 6 Figure 2 5 Rear Terminal Connections Standard 24V 110 120V or OURSTAGE Fra Recorder O P z E X OSE SS SFIS RES DO AAA RE SN REER AREA CALAS OOO OAR Ha s Ol 220 240V N B lt 131 jose up D a er Internally connected S e DONOTUSE
27. see Subsection 4 6 This parameter will be omitted from the Set Up sequence if the deviation alarm option is not fitted 43 19 Scale Range Decimal Point rPnt This parameter defines the position of the decimal point on the measured variable and the set point The default value is 1 This parameter is omitted from the Set Up sequence if the Linear Input Option is not fitted 4 3 20 Scale Range Maximum and Scale Range Minimum rhi amp rLo These parameters define the maximum and minimum values to which the set point may be adjusted The permitted range of these parameters is dependent upon the value of the Scale Range Decimal Position rPnt The default values are 100 0 for rhi and 000 0 for rLo These parameters are omitted from the Set Up sequence if the Linear Input Option is not fitted 4 3 21 Motor Travel Time tr NOTE This parameter is only applicable to Controllers with VMD Open Loop Output This parameter must be set to the time taken for the motor to turn the valve from completely open to completely closed or vice versa It can be adjusted within the range five seconds to five minutes The default value is one minute 4 3 22 Motor Switching Hysteresis hYSt NOTE This parameter is only applicable to Controllers with VMD Open Loop Output This parameter defines the minimum amount of motor travel expressed as a percentage of the total motor travel which the VMD Open Loop output can cause This enables minor fluctua
28. value of this parameter can be set in the range 1 2 1 2 4 8 16 32 64 128 256 and 512 seconds This parameter is omitted if Proportional Band Pb 0 if rCG gt 1 or if Output 2 is not fitted 4 3 15 Output 2 Value Out2 This parameter defines the switch on and switch off levels for Output 2 operating in ON OFF Mode The levels are defined as follows for a direct acting Output 2 Switch on Set Point Output 2 Value 1 2 x On Off differential Switch off Set Point Output 2 Value 1 2 x On Off differential Note that the Output 2 Value may be negative in which case the expressions above are still valid but Output 2 will switch on when the process variable is below the set point 4 5 February 1990 IM0039 4 IM 0039 3750 Programmer Controller Section 4 Installation and Operating Instructions Setting up Procedures 43 16 Process Alarm Value P AL This sets the level of the process variable at which the process alarm will operate see Subsection 4 6 This parameter will be omitted from the Set Up sequence if the process alarm option is not fitted 4 3 17 Band Alarm Value b_AL _ This sets the level of the process variable deviation at which the band alarm will operate see Subsection 4 6 This parameter will be omitted from the Set Up sequence if the band alarm option is not fitted 4 3 18 Deviation Alarm Value d AL This sets the level of the process variable deviation at which the deviation alarm will operate
29. with ON OFF relay output Section 4 Setting up Procedures Default Value 32 seconds 32 seconds Range Maximum 5 units 5 units 100 0 0 0 1 minute 196 3 Accessible only if Output 2 is fitted and is set to ON OFF Relative Gain rCG gt 1 00 4 These parameters are optional Refer to Subsection 4 6 for details of alarm operation 5 Only accessible if DC Linear Input is fitted 6 0 to 100 on Controllers with Output 1 only or with Output 2 set to ON OFF Relative Gain gt 1 00 or to Event 7 Controllers fitted with VMD Output only 8 Not accessed if Output 2 is not fitted enabled IMOO39 4 February 1990 4 9 Section 4 3750 Programmer Controller IM 0039 Setting up Procedures installation and Operating Instructions 44 TUNING THE CONTROLLER 4 4 1 Controllers Fitted with Output 1 Only NOTE For Controllers fitted with VMD Open Loop Output refer to Subsection 4 4 2 Before starting to tune the controller to the load check that Output 1 Power Limit OPhi is set to the required level see Subsection 4 3 12 Set Point Maximum SPhi and Set Point Minimum SPLo are set to safe levels see Subsection 4 3 9 Cycle Times Ct1 Ct2 are set to suitable values see Subsections 4 3 13 and 4 3 14 The following simple techniques may be used to determine values for proportional band Pb deriavtive rAtE and integral rSEt NOTE This technique is suitable only for processes which
30. 1 IM 0039 number but the Controller will execute the command specified by the immediately preceding Type 3 message and will reply giving the number of the executed command Type 3 commands will be in the form R N K data Type 3 replies will be in the form R N K data I Type 4 commands will be in the form R N KI Type 4 replies will be in the form R N K data A February 1990 IMOOS39 5 IM 0039 3750 Programmer Controller Section 5 Installation and Operating Instructions RS485 Communications Link NOTES ON TABLE 5 3 Continued The data field will be 00xx0 where xx is the command number If RS485 control is disabled negative acknowledgements will be sent Command 5 Abort will display Abrt on the controller if no parameters are being reviewed on the front panel at the time d Setting Number of Cycles to zero using a Type 3 or Type 4 message sequence will set an infinite number of cycles The same effect will be achieved if Number of Cycles is incremented to a value greater than 9999 using a Type 2 message sequence S Current Segment Number will cause a zero reply if the profile is not running 6 Programmer Status Programmer status is encoded using binary weighting as shown below Flag ISP SP PV x60 Track amp Hold Rate Time Guar Soak Hyst Wait Binary Weighting 2 22 2 2 2 23 Decimal Weighting 2048 512 128 32 16 8 Condition when set ISP PV Active Active Rate Active Waiting F
31. 3750 Programmer Controller Section 3 Installation and Operating Instructions Operating Instructions 35 SELF TEST PROCEDURE Whenthe Controller is powered up a self test procedure is automatically started during which all LED segements in the two front panel displays appear and all LED indicators are ON When the self test procedure is complete the Controller reverts to normal operation 36 NORMAL DISPLAY On completion of the self test procedure the Controller is in User Mode The upper display indicates the current value of the process variable and the lower display indicates the current value of the set point 37 USER MODE INSTRUCTIONS 3 7 1 Set Point Adjustment Profile Not Running The value of the set point may be adjusted from the front panel as follows 1 Depress the FUNC pushbutton The lower display will show the legend M The upper display will show the current value of the set point 2 Adjust the set point value using the Raise and Lower keys as applicable NOTE When either the Raise or Lower key is depressed momemtarily the set point value will be incremented or decremented as appropriate by one unit If the key is held depressed for longer th n one second the set point value is incremented or decremented as appropriate at the rate of 25 units per second If the key is held depressed for longer than 10 seconds the set point value will change at the rate of 250 units per second 3 When the set point has
32. Connections IMOO39 2 IM 0039 3750 Programmer Controller Section 2 Installation and Operating Instructions Installation 2 6 5 Output 1 Heat 2 6 5 1 RELAY OUTPUT 1 PRODUCT CODE H10 g anana The Output 1 relay has contacts connected to the rear terminals on the Controller The contacts are rated at 5A 240V AC with a resistive load CO When the relay is energised the front panel OP 1 indicator is illumi A eee ettet e eeu Xx nated The connections for the Output 1 relay are as shown in Figur b 2 11 NISI AERE rV tt Pt Pu Stt tat tM ASA PRAE Figure 2 11 Relay Output 1 Refer also to Subsection 2 7 Connections 2 6 5 2 SSR DRIVE OUTPUT 1 PRODUCT CODE H50 Controllers fitted with the SSR Output 1 produce a time proportioned gt CERRO IRON EERE OE REIN NR BREMEN E non isolated DC signal OV 12V nominal output impedance 250 EX ohms This is suitable for driving the WEST 2200 Series Thyristor Units S or other solid state relays with an isolated input When Output 1 is ON P the front panel OF 1 indicator will be illuminated The connections S 3 EA ptor A DAAA A A c tattetptittote E as shown in Figure 2 12 Figure 2 12 SSR Drive Output 1 Connections 2 6 53 DC OUTPUT 1 PRODUCT CODES H21 H24 H61 amp H64 Refer to Appendix B for details of SPUD aOR RANIA PATENT m these outputs Standard Controllers with Controllers Recorder Output O E NOT
33. E When this output NOTE When this output i is fitted to a Controller is fitted to a Controller E Output 2 Event Output Output 2 Event Output 2 or Alarm is connected or Alarm is connected to Terminals 4 5 and 6 to Terminals 4 5 and 6 RANA A eee e Figure 2 13 DC Output 1 Connections IMOO39 2 February 1990 2 7 Section 2 3750 Programmer Controller IM 0039 Installation Installation and Operating Instructions 2 6 6 Output 2 Cool NOTE If Output 1 is reverse acting Output 2 is direct acting and vice versa 2 6 6 1 OUTPUT 2 RELAY PRODUCT CODE C10 The Output 2 I el ay has sin gl e pole ES E ON double throw contacts connected to the a 6 16 T 13 T rear terminals as shown in Figure 2 14 The contacts are rated at 2A 240V AC e COM a COM 14 COM with a resistive load When the relay is energised the front panel OP 2 indicator Wo 4 18 N O NO 3 is set ON Refer also to Subsection 2 7 E i Controllers with Controllers All other i DC Output 1 with Relay SSR configurations Output 1 Recorder Output DIS 5 0 APH 55 5 5 5 RR SAA 15 5 5 9 2 5 1 5 19 9 9 2 25 1 9 ATHA Mei NR AR RN E RN EE AR RR e IN AHA IO eee ea ratu nut III IR RI o uut UP aT aHa IN RR Figure 2 44 Relay Output 2 Connections RI RRB a E PEETERS 2 6 6 2 OUTPUT 2 SSR DRIVE PRODUCT CODE C50 Controllers with this output pr oduce a e oon m xd tdem deeem Se e HER pnm Sram vir veta a o
34. ECIFICATION FOR 3750 PROGRAMMER CONTROLLER INPUT Input Types Thermocouple Resistance Temperature Detector RTD and DC Linear Common Mode Rejection Negligible effect up to 264V 50 60Hz Series Mode Rejection 100046 of span at 50 60Hz causes negligible effect Thermocouple Break Protection Upscale standard downscale optional or none optional Thermocouple Calibration Complies with BS4937 NBS125 and IEC584 stand ards RTD Pt100 Calibration Complies with BS1904 and DIN43760 standards OUTPUTS Output 1 Relay SPDT contact rating 5A resistive 120V 240V AC Relay life 10 operations Solid State Relay SSR Drive OV 12V nominal 18V maximum Output imped ance 250Q Output 2 or Event Output Optional Relay SPDT contact rating 2A resistive 120V 240V AC Relay life 10 operations Solid State Relay SSR Drive OV 12V nominal 18V maximum Output imped ance 250Q DC Output Optional The DC Output option may be fitted either on Output 1 or on Output 2 but not both The output is normally isolated to withstand up to 260V it is non isolated if the RS485 Communications Option Option X06 is fitted The are four variants of the DC Output option 1 4mA 20mA nominal into 500Q maximum 2 0mA 20mA nominal into 500Q maximum 3 1V SV nominal into 50kQ minimum 4 OV 5V nominal into 50kQ minimum Recorder Output optional Output Range 4 20mA or 0 20mA into 500 ohms maximum 1 5V or 0 SV out
35. ODAIS RAID SNR EEE EEL ELE LTEL EL ELLE PURI RU SEE ARR EIAFFARPANPE KAFFEE RRABSE PPS FIERI z M AMNES SS T ZE Tea ue 2 Z I Z S dia NE MM etat utu Figure 6 5 Options Board 468 Link Jumpers IMOOS39 6 February 1990 6 7 Section 6 3750 Programmer Controller IM 0039 Re configuration Installation and Operating Instructions 6 6 RS485 COMMUNICATIONS OPTIONS BOARD TYPE 481 This Options Board is supplied in one of four forms 1 Communications Option Output 2 Event Relay Codes C10 X06 C0056 X06 2 Communications Option Output 2 SSR Code C50 X06 3 Communications option Alarm Output Code C00 X06 4 Communications Option only Code C00 X06 Figure 6 6 shows the switches and link jumpers on the RS485 Communications Options Board When an option is not supplied the associated link jumpers will not be fitted to the Board If an Alarm Output is supplied the operation of that Alarm Output is defined by the configuration of link jumpers LJ21 LJ22 and LJ23 see Table 6 5 and the C00 entry in Table 6 7 If Output 2 is supplied its action direct or reverse is the opposite of that for Output 1 The link jumper configurations to select Output 2 or Alarm Output are shown in Table 6 7 Switch functions are described in Section 5 IEA s O A f eS A A A OS el RI ENN m an n cn ED Marat MENSES ENCORE SIRI SS SS SENDEN SEE RE Table 6
36. Output with alarm DC Output 2 is not available with DC Output 1 Event Output and Output 2 are mutually exclusive B 2 February 1990 IMOO39 B IM 0039 Alarms OTHER OPTIONS IMOO39 B C 50 C 51 C 46 C 47 C 48 C 49 X06 3750 Programmer Controller Appendix B Installation and Operating Instructions Product Codes Relay high low deviation direct acting Relay high low deviation reverse acting Band Alarm relay ON if process variable inside band Band Alarm relay ON if process variable outside band Relay process alarm direct acting Relay process alarm reverse acting RS485 compatible communications link with Option X06 fitted it is possible to have Output 2 Evcnt Output or Alarm Output fitted but not more than one of these NOTE The Communications Option is not available with Recorder Output X69 X73 X79 X74 X75 X76 X12 X18 X19 X20 Push on blade terminals 1 4 DIN to 1 8 DIN conversion plate Remote Front Panel with 0 5m connecting cable Remote Front Panel with 2 0m connecting cable Remote Front Panel with 5 0m connecting cable Chassis Mounting Bracket for use with X74 X75 or X79 Recorder Output 0 5V Recorder Output 0 20mA Recorder Output 4 20mA Recorder Output 1 5V February 1990 B 3
37. Set Point to Range Maximum Range Minimum to Set Point 1999 to 9999 1999 to 9999 IM 0039 Default Value Range Minimum Read Only 10 5 mins 00 secs 30 secs Standard 00 secs VMD Output 1 00 0 Range Maximum Range Minimum Range Maximum Range Minimum 0 to 100 of full power February 1990 100 not available if VMD Option is fitted IMOU39 4 IM 0039 Parameter Output 1 Cycle Time Output 2 Cycle Time Output 2 Value Process Alarm Value Band Alarm Value Deviation Alarm Value Scale Range Decimal Point Scale Range Maximum Scale Range Minimum Motor Travel Time 3750 Programmer Controller Installation and Operating Instructions Table 4 1 Cont Ranges amp Default Values Legend LEI Le lute P HL b AL d fil rPnt rhi rlo Er org 27 Motor Switching Hysteresis h YG L Manual Control Fnable Disable Enbl Range 0 5 1 2 4 8 16 32 or 64 seconds 0 5 1 2 4 8 16 32 64 128 256 or 512 seconds x span from Set Point Range Minimum to Range Maximum O to span from Set Point x span from Set Point 0 1 20r 3 rLo 1 to 9999 1999 to rhi 1 5 seconds to 5 minutes in 1 second increments 0 0496 to 596 of travel in 0 0156 increments 0 Disabled or 1 Enabled NOTES ON TABLE 4 1 1 These parameters are not operative or accessible if the Proportional Band Pb 0 2 Switching differential
38. Set Up Mode and will initially display Prof Profile Data dHtA This is the first of a sequence of three header displays which gives access to the three categories of functions in Set Up Mode 1 Profile Data defines the final sct point value and duration rate for cach ramp period duration of each dwell period use of Event Output during running of the profile and the number of cycles of the profile to be executed 2 Controller Functions parameters which define the way in which control is exercised on the process variable 3 Programmer Functions Defines the guaranteed soak hysteresis use of Track and Hold facility timescales of the profile hours minutes or minutes seconds selection of Output 2 or Event Output ramp programming method profile start point power fail strategy and ability to change the dwell set points whilst the profile is running The operator may step through this sequence of header displays by depressing the Raise or Lower key for each step The full sequence is ProF Lont Prob dHtH Funk Funt Profile Data Controller Programmer Functions Functions When the desired header is displayed the operator may select the opening display in the sequence for that set by depressing the FUNC key whereupon the display sequence for that set may be stepped through in a forward direction only by depressing the FUNC key at each step When the last parameter function in each set is displayed depression of the FUNC
39. Upper Display This normally displays the value of the process variable Lower Display This normally displays the set point value or if Manual control is selected the output power value in the form Pxxx If the FUNC key is depressed the set point legend SP will be displayed in the lower display and the set point value will appear in the upper display this may be adjusted using the Raise Lower keys A further depression of the FUNC key will cause a return to the normal display Profile Running Upper Display This normally displays the value of the process variable If the FUNC key is depressed either of the two dwell set point values is displayed depend ent upon which segment of the profile is currently running Lower display This normally displays the current set point value If the FUNC key is depressed the legend dSP1 or dSP2 will appear to indicate that the value in the upper display is that of Dwell Set Point 1 or Dwell Set Point 2 A second depression of the FUNC key will either return the controller to the normal display mode or cause the number of cycles completed to be displayed NOTE The units for the process variable e g F or C are displayed in a window on the lower right of the display group IMOOS39 3 February 1990 3 1 Section 3 3750 Programmer Controller IM 0039 Operating instructions installation and Operating Instructions 3 3 FRONT PANEL INDICATORS OP1 This indicates the state of the Output 1 relay
40. WEST 3750 PROGRAMMER CONTROLLER Installation Operating Instructions Dynapar Veeder Root and Eagle Signal Brands Sales Repair and Application Support 1675 Delany Rd Gurnee IL 60031 847 662 4150 Sales Order Entry Fax 847 782 5277 Applications Support Fax 800 873 8731 Sales Order Entry 800 234 8731 Applications Support NorthStar Brand Sales Repair and Application Support 1675 Delany Rd Gurnee IL 60031 847 782 5288 Sales Order Entry Fax 847 782 5277 Applications Support Fax 800 326 6216 Sales Order Entry 800 326 6216 Applications Support Partlow West Rustrak and LFE Brands Sales Repair and Application Support 1675 Delany Rd Gurnee IL 60031 847 662 4150 Sales Order Entry Fax 847 782 5277 Applications Support Fax 800 873 8731 Sales Order Entry 800 866 6659 Applications Support Please disregard all phone numbers and addresses in this manual The phone numbers and address on this page are the correct phone number and addresses to use for sales repair and application support Copyright Gulton Limited NOTE Our policy is one of continued improvement and subsequent i NTIN f y the information contained in this publication may differ in some respects from the instrument in question Therefore this document does not constitute an offer or part of an offer for sale WEST INSTRUMENTS Mark IV Instruments Ltd The Hyde Brighton Sussex BN2 4JU England Tel 44 0 273 606271 Telex
41. al Band in which Output 1 and Output 2 are both active 0 to 20 or the area within the Proportional Band in which Output 1 and Output 2 are both inactive 0 to 20 iIMOO39 4 February 1990 4 5 Section 4 3750 Programmer Controiler IM 0039 Setting up Procedures installation and Operating Instructions 4 3 8 On OFF Differential diF1 diF2 or diFF This parameter is included in the sequence only if Proportional Band 0 or if Output 2 is set to ON OFF Mode Relative Gain 1 00 It applies to Output 1 and Output 2 if Proportional Band 0 It applies only to Output 2 if Output 2 is set to ON OFF Mode Relative Gain gt 1 00 This parameter provides a deadband to prevent too frequent load switching and can be set to a value between 0 1 and 10 of the span of the controller 4 3 9 Set Point Minimum and Set Point Maximum SPhi amp SPLo These should be set to values such that in User Mode the operator cannot adjust the Set Point to a value which might cause damage 4 3 10 Recorder Output Scale Maximum roPH This parameter defines the maximum scale value of the Recorder Output Terminals 10 and 11 and may be adjusted over the range 1999 to 9999 The decimal point position for the Recorder Output scaling always corresponds to that for the process variable input range If thc Recorder Output Scale Maxunum is adjusted to be less than the Recorder Output Scale Minimum the relationship between the process variable value and the Recorder O
42. and ON OFF gt 1 00 20 to 20 of Proportional Band 10 seconds 30 minutes in one second increments and OFF 10 seconds 99 minutes 59 seconds with VMD Open Loop Output Option no OFF setting for this configuration 00 seconds 10 minutes in one second increments ON OFF Differential 0 1 10 of span ENVIRONMENT Reference Conditions Ambient Temperature 20 C 2 C Supply Voltage 120V or 240V 1 50 601z 1 Thermocouple source resistance 10Q RTD Pt100 lt 0 1Q per lead both leads equal Relative Humidity 60 70 A 2 February 1990 IM0039 A 3750 Programmer Controller installation and Operating Instructions Operating Conditions Ambient Temperature Supply Voltage Maximum Source Resistance Thermocouple RTD Pt100 PERFORMANCE Reference Accuracy Temperature Stability Cold Junction Compensation Effect of Thermocouple Resistance Effect of RTD Lead Resistance Effect of Supply Voltage Change GENERAL Display Front Panel Controls Dimensions Width Height Depth Weight Power Consumption Appendix A Specifications 0 C 50 C operating 20 C 60 C storage 193V 264V 50 60Hz 100V 132V 50 60Hz lt 1000Q lt 5Q per lead equal resistance in each lead Typically 0 5 of span 1 lsd 0 015 of span for 1 C change in ambient tem perature lt 0 1 C change for 1 C change in ambient tem
43. are not harmed by large fluctuations in the process variable They provide an acceptable basis from which to start fine tuning for a wide range of processes For additional information on tuning including alternative tuning techniques refer to the book Principles of Temperature Control available from WEST 1 Set the Set Point SP to the normal operating process value set it to a lower value if overshoot beyond the normal operating process value is likely to cause damage 2 Set the Proportional Band Pb to 196 the Integral Time Constant rSEt to Off 1 e increase the value of rSEt until the upper display goes blank and the Derivative Time Constant rAtE to 0 3 Follow the instructions in Figure 4 3 At each stage allow sufficient time before moving on to the subsequent stage AFTER SETTING UP THE PARAMETERS SET THE CONTROLLER TO USER MODE SEE SUBSEC TION 4 7 TO PREVENT UNAUTHORISED ADJUSTMENT TO THE VALUES 4 4 2 Controllers with VMD Open Loop Output Before starting to tune the controller to the load check that the Set Point Maximum SPhi and Set Point Minimum SPLo are set to safe levels see Subsection 4 3 9 The tuning procedure is as follows 1 Set the set point SP to below the normal operating process value significantly lower if overshoot beyond this value is likely to cause damage 2 Set the proportional band Pb to 192 set the integral time constant rSEt to its maximum value 99 minutes 59 second
44. d OP2 Fitted atata atatan et 4 2 7 Final Set Point 2 FSP2 This parameter is the value of the set point at the erid of the second ramp period this value will be maintained throughout the second dwell period This parameter may be adjusted within the range Set Point Low Limit SPLo Set Point High Limit SPhi see Subsection 4 3 4 2 8 Ramp 2 Change Rate rtr2 Rate Ramp Prorgamming Mode Only This parameter defines the rate of change of the set point during the second ramp in units hour or if the x60 function bY60 is set to YES in units minute see Subsection 4 5 3 It may be set to a value in the range 1 9999 The default value is 60 or 6 0 dependent upon the input range fitted see Subsection 6 2 4 2 9 Ramp 2 Time t r2 Time Ramp Programming Mode Only This parameter defines the duration of Ramp 2 in hours and minutes or if the x60 function bY60 is set to YES in minutes and seconds see Subsection 4 5 3 It may be set to a value in the range 0 99 59 The default setting is 01 00 4 2 10 Ramp 2 Event Output State Etr2 This function is applicable only if the Event Output option has been fitted and enabled it defines the state ON or OFF of the Event Output during Ramp 2 The default setting is OFF 4 4 February 1990 IMO0039 4 M 0039 3750 Programmer Controlier Section 4 installation and Operating instructions Setting up Procedures 42 11 Dwell 2 Time t d2 This defines the duration of the sec
45. de NOTE The new value of the dwell set point will be valid only for the current execution of the profile It does not change the value permanently held in the profile parameters 38 RUN TIME MODE INSTRUCTIONS Run Time Mode may be entered at any time even when the Controller is in Set Up Mode Run Time Mode is selected by simply depressing the Run Time key In Run Time Mode the operator may a start the profile running if it is not already doing so b hold suspend a currently running profile the set point will be frozen at its value when the Hold condition started c abort a currently running or currently held profile the process will be released to automatic or manual control as selected with the value of set point defined by the controller set point SP parameter d jump to the next segment of the currently running profile or e select manual or automatic control of the process if manual control selection has been enabled in Set Up Mode see Section 4 When Run Time Mode is first entered the Controller will initially display one of the following run hid Abrk gu a Me qus Profile Held not running Profile not running Profile running Profile running Held Auto Mode Manual Mode Auto Mode Manual Mode The operator may then step through the Run Time options on the upper display by depressing the FUNC key to make each step The sequence is dependent upon the mode in which the Controller is current
46. e Minimum Integral Time Constant Not applicable Overlap Deadband Controller Status Process Variable Output 1 Cycle Time Motor Travel Time Output 2 Cycle Time Motor Hysteresis Proportional Band Range Decimal Point Not applicable Set Point Set Point Minimum Relative Gain Deviation Output Power Not applicable Controller Commands Combo Scan Not Applicable February 1990 Modifiable Yes Yes Yes Yes Yes Yes for Output 1 and Output 2 if fitted if the Proportional Band is set to 0 for Output 2 only if Relative Gain gt 1 00 i e Output 2 is in On Off Mode Yes if linear input fitted Yes if linear input fitted Yes Yes No No Yes Yes Yes Yes Yes Yes if linear input fitted Yes Yes Yes No Yes if in Manual Mode Yes No IM0039 5 IM 0039 IMOO39 5 3750 Programmer Controlier Section 5 Installation and Operating Instructions RS485 Communications Link NOTES ON TABLE 5 2 Not applicable to Controllers fitted with VMD Output Applicable only to Controllers fitted with VMD Output 1 To set the Integral Time Constant OFF using the Parameter Set command the data field should be set to 00002 2 The value of the status is transmitted as four decimal digits followed by 0 The four digit number must be converted into binary form in which Bit 0 the least significant bit refers to the alarm 1 safe 0 unsafe alarm not fitted or alarm switched of
47. e achieved by changing link jumper positions Control lers with Product Code T4443 or T4499 may be changed from one to the other and vice versa these Controllers may also be re configured for thermocouple input as described in Subsection 6 2 1 With any other linear input configurations the only change possible by means of the link jumpers is alteration of the scale range minimum from 076 to 2076 of scale range maximum and vice versa Table 6 4 shows the Linear Input Product Codes which can be interchanged Table 6 4 Linear Input Link Jumper Settings Input Product Code Input Range Link Jumper LJ5 T4412 0 100mV Parked T4416 20 100mV Fitted T4444 0 1V Parked 14415 0 2 1 0V Fitted T4445 0 5V Parked T4434 1 5V Fitted T3413 0 20mA Parked T3414 4 20mA Fitted Apart from Link Jumper LJ5 no other link jumpers should be altered 6 3 CHANGING THE ACTION OF OUTPUT 1 Output 1 Relay SSR or DC output may be configured to be direct acting or reverse acting Reverse Acting active e g relay energised when process variable lt set point Direct Acting active e g relay energised when process variable gt set point For a direct acting Output 1 Product Code H 31 link jumper LJ4 should be fitted on the CPU Board For a reverse acting Output 1 the standard configuration link jumper LJ4 on the CPU Board should be parked 6 4 OUTPUT 2 EVENT OUTPUT AND ALARM OUTPUTS NOTE The Output 2 and Event Output are mutually exclu
48. e following combinations are available in addition to process input 1 DC Output 1 Relay SSR Output 2 or Event Output Relay Recorder Output 2 DC Output 1 Alarm Recorder Output 3 Relay SSR Output 1 DC Output 2 Recorder Output The selection of output type alarm type and the Recorder Output option is defined by link jumpers on the Options Board The locations of the link jumpers are shown in Figure 6 9 and the available link jumper settings are shown in Table 6 11 Table 6 11 Options Board 497 DC Output Link Jumpers Link Jumpers Product Code LJ20 LJ24 LJ25 LJ26 LJ21 LJ22 LJ23 H21 P P EN H24 X P Tt H61 P XX kk HEA ra X X m See Table 6 12 C2100 P P ad P P P C2400 gt X P s P P P C6100 P X dee P P P C6400 X X ex P P P X Fitted P Parked Fit Link LJ20 if Output 1 and Output 2 Event Output are required otherwise park Fit Link LJ26 if Relay Output 2 Event Output Code C10 C0056 or C00 56 or SSR Output 2 Code C50 is required otherwise park Table 6 12 Option Board 497 LJs for CPU Board O P Link Jumpers Product Code LJ21 LJ22 LJ23 H10 P P P H50 P P P Fes Gren or SSR etermin y components fitted on C1000 E P the CPU Board C5000 P P Po i C0000 P P P Output on the CPU Board not used C0050 X P P C0051 X P X C0046 p X X Standard Alarm Output requires the use of a CPU Board with Relay C0048 X X P C0049 X X X _ _ C0056 or C00 56 P P P Requires the use o
49. ebruary 1990 B 1 Appendix B 3750Programmer Controller IM 0039 Installation and Operating Instructions Three wire Resistance Temperature Detector RTD T2221 Oto 600 C T2295 0 0 to 100 0 C T2222 32to 1112 F T2296 32 0 to 212 0 F T2229 32 to 572 C T2297 200 to 205 C T2230 101 0 to 100 0 C T2298 328 to 401 F T2231 150 0 to 212 0 F T7201 101 0 to 300 0 C T2251 0 to 300 C T7202 150 to 572 F DC Linear Input T4443 0 50mV T4415 0 2 1 0V T4499 10 50mV T4445 0 5V T4412 0 100mV T4434 1 5V T4416 20 100mV T3413 0 20mA T4444 0 1V T3414 4 20mA OUTPUTS Output 1 Normally reverse acting H10 Relay H61 DC Output 1V 5V H50 SSR Drive H64 DC Output 0V 5V H21 DC Output 4mA 20mA H70 VMD Open Loop Output H24 DC Output 0mA 4mA DC Output 2 is not available with DC Output 1 VMD Open Loop Output is available with the following restrictions a Output 2 is not available if the VMD Open Loop Output is fittcd b The VMD Open Loop Output cannot be re configured to any other output option Controllers with any other output cannot be re configured to VMD Open Loop Output Output 1 Option H 31 Direct Acting Output 2 Action opposite to Output 1 i e normally direct acting or Event Output C00 Output 2 not fitted C10 Relay C50 SSR Drive Cu DC Output 4mA 20mA C24 DC Output 0mA 20mA C61 DC Output 1V 5V C64 DC Output 0V 5V C0056 or C00 56 Event Output C00 56 Event
50. ed comprise one start bit seven data bits one parity bit even and a stop bit The link is asynchronous and operates at a transfer rate of 4800 Baud IMOO39 5 February 1990 5 1 Section 5 3750 Programmer Controller IM 0039 RS485 Communications Link Installation and Operating Instructions AAA ANA IA CCAA IN O fttt Pt E RON ETNIAS EAS ARA AR NAAA lt 2 D d 2 AAA A KAAM A AS Pa AR HAM FS A Figure 5 1 Option Board Type 481 RS485 Switches EI A eee ee PEE REDIRECCIONES EIA L MS NS E E pi z Z 2 i A MN 7 P e gt NI Tau utat etta POSADA ESNAREISIIILELURESELSELEL ES LISELI E NELLIE EEESESEESSSESOESSSEELS A er I HO Figure 5 2 Option Board Type 489 RS485 Switches 5 2 February 1990 IM0039 5 M 0039 3750 Programmer Controlier Section 5 Installation and Operating Instructions RS485 Communications Link Table 5 1 RS485 Channel Selection Switch Switch Channel No 5 S4 S3 S2 S1 Channel No S5 S4 S3 S2 S1 1 lt X 17 X e X 2 lt X s 18 X 2 X 3 X X 19 X X X 4 X 20 X X 5 X X 21 X X X 6 X X 22 X X X 7 X X X 23 X X X X 8 X 24 X X 9 X X 25 X X X 10 X X 26 X X X 11 X X X 27 X X X X 12 X X 28 X X X 13 X X X 29 X X X X 14 X X X 30 X X X X 15 X X X 31 X X X X X 16 X 32
51. er as defined in Table 5 2 or Table 5 3 and C is the command which may be one of the following Hex 2B to increment the value of the parameter defined by P Hex 2D to decrement the value of the parameter defined by P Hex 3F to determine the current value of the parameter defined by P The reply from the addressed controller is of the form L N P data A or R N P data where data is five ASCH coded digits whose format is shown in Table 5 5 The data is either the value requested in the query or the new parameter value after modification If the value specified is not valid because it is outside the permitted value range of that parameter or because the parameter 15 not modifiable the controller replies with a negative acknowledgement 5 4 February 1990 IMOO39 5 IM 0039 3750 Programmer Controlier Section 5 installation and Operating Instructions RS485 Communications Link L N P data N The data string in the reply is the current unchanged value of the specified parameter If the process variable or the deviation is interrogated when the process variable is outside the range of the controller the reply is L N P lt gt 0A if over range or L N P lt gt 5A if under range A parameter character in the message from the master device indicates that a combo scan is required this provides a facility for interrogating the values of set point process variable power output s
52. f Bit 1 is not used Bit 2 is not used Bit 3 will be set to 1 if any programmable parameter has been changed by means other than the communications link since the last time access was gained to the status word Bit 4 indicates whether alteration of the parameters via the RS485 link is enabled 1 enabled 0 disabled Bits 5 6 and 7 are not used 3 To set Output 2 to ON OFF Mode with DC or time proportioned Output 1 the data field for the Relative Gain parameter should be set to 00002 4 Deviation Process variable Set Point 5 Only Type 3 or Type 4 messages can be used with this parameter For this type of message the second least significant digit of the data field must be one of four numbers the remaining digits being zeroes The reply from the Controller will also contain this comand number The Type 4 message does not include the command number but the reply to the Type 4 message contains the number of the command executed These command numbers are 0010 Activate Manual Control 0020 Activate Automatic Control February 1990 5 7 Section 5 RS485 Communications Link 5 8 Parameter Identifier N lt x lt CAODOVTOZS lt XT AC TI OmmodG o gt 2 Parameters D and F are used when an Event Output is fitted To use these functions the Stage Number must first be selected using parameter A then parameter s D and or F must be accessed If these parameters are interrogated using a Type 2 message data
53. f a CPU Board X Fitted P Parked with Relay output 6 12 February 1990 IMO039 6 IM 0039 3750 Programmer Controller Section 6 Installation and Operating Instructions Re configuration Table 6 13 Options Board 497 Option Selection Link Jumpers Link jumpers LJ28 LJ29 LJ30 and Product Code LJ32 LJ33 LJ31 must be parked X12 P X X18 P P P Parked X19 X P X Fitted X20 X X Recorder O P OFF P P venae O OOO OOO ated aa aub tut tp E AAAA AA pS A A E rta ST IR Ate CNO Figure 6 9 Options Board 497 Link Jumpers 6 10 CHANGING THE MAINS LINE SUPPLY VOLTAGE On the CPU Board link jumper LJ1 is fitted for operation on a 193V 264V supply Code L01 and link jumper LJ2 is fitted for operation on a 100V 132V supply Code L02 It is not possible to re configure the Controller to from 24V operation Code L04 IM0039 6 February 1990 6 13 Section 6 3750 Programmer Controller Re configuration Installation and Operating Instructions 6 11 ASSEMBLING THE CONTROLLER 6 11 1 6 11 2 6 11 3 6 14 Fitting the Options Board to the CPU Board if required 1 Hold the two boards side by side with the component sides facing each other and the PC connectors aligned 2 Carefully align the multiple pin plugs on the Options Board with the sockets on the CPU Board and gently engage the plugs and sockets 3 Insert the screw made available during the previous separation of the two boards through the
54. fety purposes see Figure 2 18 This connects the supply to the motor via the normally closed contacts on the relays Refer also to Subsection 2 7 PA A A A A tanteo t GO I PI LO OR LM EN OO o ui A Valve NC E NG aa E G EN COM Close Relay o wo Relay Controllers with Recorder Output Z aaa a N C N C Valve Open com Relay Valve COM Close N O Relay DA O O DD A A a N O PODIO All other configurations e MARA ABAR RRA RE SAAS RAM ERE SOE AR ARAR AAR A ARAR LIARS RR EERE ARAR RR EE ETERS TEER RRR ET i Cata aa utat tas O NN YN a Figure 2 17 VMD Open Loop Connections tt stetetetatetatetatatatetatetytetstatatatety ii a ee ee A ETA atat ee Tete etta Te E E Open Close Common Terminal numbers shown in brackets are the variations for Controllers with Recorder Output RRA O ROO OO O SIT O A O SS OOO ROO OO ROI NN IMOO39 2 February 1990 2 9 Section 2 3750 Programmer Controller IM 0039 installation installation and Operating Instructions 2 6 8 Alarm Output Optional Product Codes C 46 to C 51 Th e r el ay conn e cti ons for an al arm out q ON SIS put are shown in Figure 2 19 Details of the operations of the various types of N C red alarms may be found in Subsection 4 6 2 ES NIC COM eL Controllers with DC Output 1 either _ Allother RS485 Communications CORUGUESMONS 3 or Recorder Output i A K s E O ORO AID ARI te HIPH deett t
55. he screw which holds it in place 2 Insert the remote front panel into the cut out in the mounting panel 3 Holding the front panel in position re attach the mounting clamp securing the front panel in position 76T OI geet DIE OOO DORA O EL EA TAO LEA e 3 E we se The Controller may be mounted in the same manner as the standard Controller see Subsection 2 2 2 and Figure 2 2 or it may be secured with a chassis mounting bracket as described in the following procedure see also Figure 2 3 110mm Attach the chassis mounting bracket to the mounting panel or chassis by means of suitable screws or bolts maximum thread diameter 4mm E 2 Insert the Controller through the aperture in the bracket and attach it to the bracket by means of the mounting clamp in the same manner as for mounting aj standard Controller to a mounting panel aT v ATA ie nS aT 2 8 27 RAAT mtn a aSa aT am ata ata an A A a a n A n aTa aa a a r A TATA ATTA Figure 2 3 Chassis Mounting Bracket 2 3 3 Connecting the Controller to the Remote Front Panel The Controller with a remote front panel is supplied with an inter connecting cable This is installed by inserting the two ends of the cable into the IDC sockets on the remote front panel and the front of the Controller ensure that the plastic key on each of the cable connectors engages with the keyway in the corresponding connector The connectors are secured in place by squee
56. ions Installation and Operating Instructions c Upon aborting a profile the displays will immediately show the process variable value upper display and in the lower display the legend Abre Depression of the Raise key or the Lower key will then cause a return to Normal Display Mode 39 DEFAULT PARAMETER INDICATION If the Controller is operating with default values the upper display will show a decimal point after each digit of the displayed value See Section 4 for details of setting up control parameter values 3 10 REMOTE CONTROL VIA THE RS485 COMPATIBLE LINK If the controller is fitted with the RS485 compatible serial communications facility Option X06 and this has been enabled see Section 5 parameters may be changed via this communications link 3 8 February 1990 IMO039 3 IM 0039 3750 Programmer Controller Section 4 Installation and Operating Instructions Setting up Procedures SECTION 4 SETTING UP PROCEDURES 4 1 TO ENTER SET UP MODE With the Controller in User Mode and the upper display showing the current value of the process variable and the lower display showing the current value of the set point proceed as follows 1 Depress and hold down the Raise and Lower keys simultaneously until the front panel SET indicator starts to flash 2 Within three seconds of the SET indicator starting to flash depress and hold down the FUNC key until the SET indicator is continuously ON The Controller is now in
57. is not or currently running currently running 2 If the profile is Held RUN indicator flashing or is currently running RUN indicator ON depress the FUNC key until the upper display shows Auto The Controller will assume automatic control of the process and will return to Normal Display Mode showing the process variable value in the upper display and the set point value in the lower display 3 Depress the Run Time key 3 8 3 Starting Kesuming a Profile With the Controller in Auto Mode a profile can be started if not running or released if Held as follows 1 Depress the Run Time key The controller will display run YES 2 Depress the Run Time key again The Controller will exit Run Time Mode and the profile will be started re started 3 8 4 Holding Suspending a Currently Running Profile With the Controller in Auto Mode a currently running profile can be Held as follows 1 Depress the Run Time key The Controller will display hild YES 2 Depress the Run Time key again The profile will be suspended with the set point frozen at its value at the instant of suspension 36 February 1990 IMOO39 3 IM 0039 3750 Programmer Controller Section 3 Installation and Operating instructions Operating Instructions 3 8 5 Aborting a Profile A currently Held or currently running profile may be aborted as follows 1 Depress the Run Time key The Controller will display one of the following Auto Mode
58. key will cause the corresponding header display to appear again If the FUNC key is held down the Controller will advance through the display sequence until cither the FUNC key is released ur the header is displayed again Each display will show the value setting of the selected parameter function in the upper display and the legend which identifies that parameter in the lower display While each parameter is displayed the operator may adjust the value of that parameter within the permitted range by use of the Raise to increment and Lower to decrement keys The upper and lower displays will flash if the operator attempts to IMOO39 4 February 1990 4 1 Section 4 3750 Programmer Controller IM 0039 Setting up Procedures installation and Operating Instructions a adjust a parameter to a value outside the range of adjustment b adjust a parameter to a value beyond the limit set by another parameter e g SP Limit c adjust a read only parameter e g process variable In such instances the attempted adjustment will not be implemented When initially setting up the Controller the Controller Function and Programmer Function parameters see Subsections 4 3 and 4 4 should be set before entering the Profile Data Subsequently in most applications adjustment will only be necessary to the Profile Data NOTE In Set Up Mode if one minute elapses during which no key is operated the Controller will return automatically to User Mode
59. lag Run Abort Hold Binary Weighting 2 2 29 Decimal Weighting 4 2 1 Condition when set Running Aborting Holding The status data is transmitted by the Controller as four decimal digits followed by 0 the four decimal digits representing the sum of all the flags which are set This number must be converted from decimal into binary in the master to interpret the eight status bits 7 Dwell Time Duration may be set to infinity by using the Parameter Set command to set the value of this parameter to 99 60 i e the data field of the command should be set to 99602 8 Guaranteed Soak Hysteresis may be set OFF by using the parameter set command to set this parameter to a value equal to the span of the Controller e g if a DC Linear Input is fitted Scale Range Maximum Scale Range Minimum Table 5 4 Programmer Command Numbers Command Number Command Function 01 Run profile 02 Hold profile 09 Cancel Hold 04 Segment Advance jump to next segment 05 Abort profile 06 ISP SP 07 ISP PV 10 Track amp Hold enable 11 Track amp Hold disable 12 x60 enable 13 x60 disable IMOO39 5 February 1990 5 9 Section 5 3750 Programmer Controller IM 0039 RS485 Communications Link installation and Operating Instructions 5 5 4 Data Format The data field contains five ASCII coded decimal digits The first four digits form a decimal number whose sign and magnitude are defined by the value of the fifth digit as shown in Table 5 5
60. lows 1 With a flat bladed screwdriver of appropriate size 1 4 inch rotate i the locking screw see Figure 2 4 anticlockwise until the locking Locking Screw E screw thread is completely dis engaged This will p artially move the Pes Controller out of the housing and dis engage the connections at the Figure 2 4 Location of rear of the Controller inside the housing Locking Screw 2 Carefully pull the Controller forwards clear of the housing 25 REPLACEMENT OF THE CONTROLLER IN ITS HOUSING 1 Carefully slide the Controller into its housing ensuring that the Controller PCB s locate against the outside of the card guides moulded in the top and bottom of the housing 2 Push the Controller firmly into place such that sound connection is made between the Controller PCBs edge connectors and the rear connections inside the housing 3 Engage the thread of the locking screw and tighten the locking screw until the Controller is securely in position in the housing 2 6 CONNECTIONS AND WIRING The following connections for outputs and inputs are provided at the rear of the Controller housing with some controller configurations some of the connections may not be present Mains Line input Thermocouple resistance temperature detector RTD or DC linear input Output 1 HEAT Relay solid state relay SSR or DC output Output 2 COOL output Relay SSR or DC output or Event Output Relay Valvc motor drivc VMD
61. ly operating NOTE The Auto and Profile not running TN Man options are shown e IN TT An p only if Manual Mode Selection is enabled ae Hubo mmus gt hd Abre IP PAn won gt Abre Auto mon gt eun Abre PAn Poieni gt Abr k Puto 3 4 February 1990 IMO039 3 IM 0039 3750 Programmer Controller Section 3 installation and Operating Instructions Operating Instructions If the last option in a sequence is displayed a subsequent depression of the FUNC key will cause an exit from Run Time Mode If the FUNC key is held depressed the display will scroll through the appropriate sequence and will then exit from the Run Time Mode When the desired option is displayed it is selected by depressing the Run Time key Upon selection of an option the appropriate action is implemented and an exit is made from the Run Time Mode NOTE The Raise and Lower keys serve no function in Run Time Mode 3 8 1 Selecting Manual Control CAUTION Extreme caution should be exercised in the use of the Manual Control facility to avoid the possibility of damage to either the process or the process equipment To select Manual Control on a Controller which is currently in Auto Mode 1 Depress the Run Time key the Controller will display run hUl d YES YESA If the profile is Held not If the profile is currently running currently running 2 Depress the FUNC key until the upper display shows Hn 3 Depress the Run Time key The process
62. meter during a ramp or dwell period the ramp dwell timing is suspended until the deviation is less than the Guaranteed Soak Hysteresis Whilst the timing is suspended the lower display will flash in normal display mode When the deviation becomes less than the Guaranteed Soak Hysteresis the timing is resumed This parameter can be set to YES ON or no OFF This parameter is included in the display sequence only if the Guaranteed Soak Hysteresis is set ON Note that the Track and Hold facility when ON is active at all times i e whenever the deviation exceeds the Guaranteed Soak Hysteresis the timing during a ramp or dwell is suspended The operation of the Guaranteed Soak Hysteresis and Track and Hold parameters is illustrated in Figure 4 5 4 5 3 x60 Operation bY60 This facility when selected alters the timescales for ramp and dwell periods from the normal units hour or hours minutes to units minute or minutes seconds i e timescales are shortened by a factor of 60 This parameter can be set to YES ON or no OFF 4 5 4 Output 2 or Event Output Configuration OP2 This parameter permits the output to be allocated either as Cool or as an Event Output Event Output is applicable only if the Outpnt 2 relay hardware is fitted 4 5 5 Ramp Programming Method rMP This parameter defines the method by which ramps may be defined Rate The ramp is defined by a final value FSP1 or FSP2 and a ramp rate rtr1 or rtr2
63. n nel from gaining access to the power terminations The Ground terminal 9 should be connected to a protective ground conductor before any other connections are made and should remain connected at all times Power should be connected via a two pole isolating switch and a 1A 193 264V supply 2A 100 132V supply or 5A 24V supply fuse as shown in Figure 2 7 2 6 2 Thermocouple Input gusten Thermocouple input connections are shown in Figure 2 8 The correct type i of thermocouple extension leadwire or compensating cable must be used for the entire distance between the Controller and the thermocouple 3 ensuring that the correct polarity is observed throughout Joints in the cable should be avoided if possible All Controllers supplied with a thermo i CRUCEROS do merecen RENE couple input have a cold junction compensation unit connected across Figure 2 8 Thermocouple Input terminals 1 and 2 This unit should never be removed Connections NOTE Do not run thermocouple cables adjacent to power carrying conductors If the wiring is Tun in a conduit use a separate conduit for the thermocouple wiring If the thermocouple is grounded this must be done at one point only If the thermocouple extension lead is shielded the shield must be grounded at one point only The colour codes used on the thermocouple extension leads are shown in Table 2 1 IMOO39 2 February 1990 2 5 Section 2 3750 Programmer Controller IM 0039 Ins
64. n in Table 6 1 Break protection link settings are shown in Table 6 2 3750 Programmer Controller Installation and Operating Instructions 62 CHANGING INPUT RANGES Thermocouple Inputs Table 6 1 Thermocouple Input Link Jumpers Section 6 Re configuration input CPU Board Link Jumpers Product Code Type Range LJ5 LJ6 LJ7 LJ8 LJ9 LJ17 LJ1i8 LJ19 T1127 R 0 1650 C P X P X X X X T1128 R 32 3002 F X X P X X X X T1227 S 0 1650 C P P X P P X X T1228 S 32 3002 F X P X P P X X T1415 J 0 205 C P P P P Xx P X E T1416 J 32 401 F X P P P Y P X S T1417 J 0 450 C P P P Xx P P X T1418 J 32 842 F X P P X P P X T1419 J 0 760 C P P X X p P X S T1420 J 32 1400 F X P X X P P X T1541 T 0 260 C P X X X P X X T1542 T 32 500 F X X X X P X X T1719 K 0 760 C P P P Xx xX P X s T1720 K 32 1400 F X P P X X P X T1723 K 0 17319C P o X P P P P X T1724 K 32 2500 F X X P P P P X T1983 B 100 1820 C P P X P X X X T1984 B 212 3308 F X P X P X X X T4443 Linear O 50mV P P P P P P X T4499 Linear 10 50mV X P P P P P X X Fitted P Parked Not fitted A Controller with a thermocouple input can be changed to 0 50mV or 10 50mV linear input but not to any other linear input range nor to RTD input Table 6 2 Break Protection Link Jumper Settings Link Jumpers Break Protection Type Input Product Code LJi4 LJ15 Upscale T X Downscale T 21 X No protection T
65. na rEr FSP ana E r Defined by FSP2 rEre A IAS I 1 1 i t i i i M M M MM Dwell 1 Dwell 2 iu t l i i t i y i i i i i i l l L l I L de Ramp 1 Ramp 2 Figure 4 1 A Typical Profile 4 2 1 Final Set Point 1 FSP1 This parameter is the value of the set point at the end of the first ramp period this value will be maintained throughout the first dwell period This parameter may be adjusted within the range Set Point Low Limit SPLo Set Point High Limit SPhi see Subsection 4 3 4 2 2 Ramp 1 Change Rate rtri Rate Ramp Programming Mode Only This defines the rate of change of the set point during the first ramp in units hour or if the x60 function bY60 is set to YES in units minute see Subsection 4 5 3 It may be in the range 1 9999 The default value is 60 ur 6 0 dependent upon the input range fitted see Subsection 6 2 4 2 3 Ramp 1 Time t rl Time Ramp Programming Mode Only This defines the duration of Ramp 1 in hours and minutes or if the x60 function bY60 is set to YES in minutes and seconds see Subsection 4 5 3 It may be set to a value in the range 0 99 59 The default setting is 01 00 4 2 4 Ramp 1 Event Output State Etrl This function is applicable only if the Event Output option has been fitted and enabled it defines the state ON or OFF of the Event Output during Ramp 1
66. ng up Procedures SN NN NA qt e SD ds EL 4 e Product _Code Function x z C 50 T Ve Deviation C 50 Ve Deviation C 51 ve Deviation c 51 ve Deviation at al hau fa E ROO NERD SON MPA NON DION MA 4 20 Process variable below Set Point DUI O a RRR a A oE 4 A O HU 3750 Programmer Controiler IM 0039 Installation and Operating instructions CULO ORC ROO pon AC O Ra OOOO MR ata AO POR POROS anes EA OA DON DU e teta CIO OCIO ep a Set Point Process variable above Set Point i i Alarm Value ALM LED flashes ALM LED OFF Alarm Relay OFF Alarm relay ON I Alarm Value l ALM LED flashes i Alarm relay ON M LED OFF Alarm Relay OFF ALM LED flashes Alarm relay OFF ALM LED flashes Alarm relay OFF Alarm Value Warm Value t ALM LED OFF Alarm Relay ON ALM LED flashes Alarm relay OFF ALM LED flashes Alarm relay OFF arm Value Alarm Value ALM LED flashes ALM LED flashes Alarm relay ON ALM LED OFF Alarm Relay OFF Alarm relay ON ALM LED flashes ALM LED OFF Alarm Relay OFF Alarm relay ON arm Value ALM LED flashes ALM LED OFF Alarm Relay ON Alarm relay OFF ALM LED Controller front panel ALM indicator ADS E RO RAT OO OA O LP Eton monia a La ooa oa a a ena a tutu n Pa fam TUI antem atatum THARA A ARO n rene v nr anna PHI IH ttftt nf Futur nutu ara utut tunt utt rrt
67. normally in units hour Time The ramp is defined by a final value FSP1 or FSP2 and a time duration for the ramp tr1 or tr2 normally in hours This parameter may be set to rAtE Rate or tME Time NOTE If the setting of this parameter is changed the profile data parameter for the new setting ramp rate or ramp time is set to its default value 4 5 6 Initial Set Point Selection inSP This defines the profile starting set point value to be either the current Controller set point i SP or the current process variable value i Pv 4 5 7 Power Fail Strategy PrFL This parameter defines the response to restoration of power after a power failure during the running of the profile Abrt When power is restored the profile is aborted The upper display will show the process variable value and the lower display will show the legend Abrt When the profile is run again it will start from the beginning of Ramp 1 Cont When power is restored the profile will continue from the point reached at the instant of power failure IMOO39 4 February 1990 4 15 Section 4 3750 Programmer Controller Setting up Procedures installation and Operating Instructions O E Guaranteed Soak Hysteresis Active Track and Hold OFF awn P Se e ah a v Pm ae Guaranteed E X Er oak on BM ysteresis GGO IH SC C KEO CKC N X ws SALE ee es JJ C in 2 3 XQ Dwell Timing Suspended IDA AS Guaranteed Soak H
68. ns of alarm are available Product Code C 46 C 47 C 48 C 49 C 50 C 51 Type Band Alarm Band Alarm Process Alarm Process Alarm Deviation Alarm Deviation Alarm Action Relay ON inside band Relay ON outside band Direct Reverse Direct Reverse Product codes C 46 C 47 C 50 and C 51 refer to deviation alarms Product codes C 48 and C 49 refer to alarms with a value which is absolute i e not relative to the set point For confgurations C 50 and C 51 the value may be set positive or negative The operation of the various alarm types is shown in Figure 4 7 47 LEAVING SET UP MODE NOTE When the Controller is in Set Up Mode if more than one minute elapses without any pushbutton being depressed the Controller will return automatically to the User Mode Therefore the following procedure is required only if it is necessary to leave Set Up Mode immediately To return the Controller to User Mode 1 Using the FUNC pushbutton select display of any of the three Set Up Mode header displays in the upper display 2 Simultaneously depress and hold the Raise and Lower pushbuttons until the SET indicator starts to flash 3 Within three seconds of the SET indicator starting to flash release the Raise and Lower pushbuttons and depress and hold the FUNC pushbutton until the SET indicator is extinguished The Controller is now in User Mode IMQ039 4 February 1990 4 19 Section 4 Setti
69. nto place on the Controller a Gani see Figure 2 2 and push it forwards until it touches the rear face of panel Teeth on the arms which project to the rear of the clamp will engage with the ratchets moulded into the top and bottom surfaces of the Controller housing 3 Gently tighten the screws inthe clamp till the front panel 2 is fitted snugly in the cut out in the mounting panel i CAUTION id Panel Do not over tighten the screws this will distort thel us MGUNURO AME da cd A IR MI OMS ufu t Pate Su Ta taf ata Ta utu Puta afa Ta Pau R 8a au Pa n9 Ke mounting clamp Figure 2 2 Panel mounting a Controller IM0039 2 February 1990 2 1 Section 2 3750 Programmer Controller IM 0039 Installation Installation and Operating instructions 23 PANEL MOUNTING A CONTROLLER WITH A REMOTE FRONT PANEL 2 3 1 Pre Requisites 2 3 1 1 REMOTE FRONT PANEL The cut out required for the remote front panel is the same as that for the standard Controller see Figure 2 1 The remote front panel is 28 00 mm 1 10 in deep measured from the rear face of the front panel It is 96 00mm 3 8 in high 48 00mm 1 89 in wide and when panel mounted it projects 6 00mm 0 25 in out from the panel 2 3 1 2 CONTROLLER The cut out required for the Controller is the same as that for the standard Controller see Figure 2 1 2 3 2 Panel Mounting Procedure 2 3 2 1 REMOTE FRONT PANEL 1 Remove the mounting clamp from the front panel by undoing t
70. oller contains voltage dependent resistors VDRs across all relay contacts these protect the internal circuits for all loads up to the maximum rating No external protection components are necessary unless an external switch or contact is fitted in series with the Controller relay contacts see Subsection 2 7 2 IMOO39 2 February 1990 2 11 Section 2 3750 Programmer Controller IM 0039 Installation installation and Operating Instructions 2 7 2 An External Switch in Series with an External Inductive Load Damage may be caused to the Controller if the contacts of a switch relay or contactor are connected externally in series with the Controller relay contacts as shown in Figure 2 24 IN EIA NIIS NP EARN eaa INPUNE OS ON PO ROS IO teet ttt aaia A A TADEN Aaa 2 d gt ASNO OOO E m MIHI Idae atte e Hp epe ae te t e eee D A ARA AAA POS RO DO N Ite ee e HP et ett OA Figure 2 23 External Switch Inductive Load in Series Under these conditions the external contacts may operate whilst the Controller relay contacts are closed i e when the internal protection components are short circuited and therefore ineffective In applications in which it is necessary to fit the contacts of an external switch relay or contactor in series with the Controller relay a suitable VDR or a snubber network must be fitted either across the inductive load or across the unprotected contacts the components shown in dotted outline in
71. ond dwell soak period in hours and minutes or if the x60 function bY60 is set to YES in minutes and seconds scc Subsection 4 5 3 It may be adjusted within the range 0 99 59 selection of a value greater than 99 59 causes the second dwell period to continue indefinitely The default value is 1 00 4 2 12 Dwell 2 Event Output State Etd2 This function is applicable only if the Event Output option has been fitted and enabled it defines the state ON or OFF of the Event Output during the second dwell period The default setting is OFF 4 2 13 Number of Cycles CyCL This defines the number of times the profile is to be executed automatically It may be set to a value in the range 1 9999 if a value greater than 9999 is set the profile will cycle indefinitely 4 3 CONTROLLER FUNCTIONS When Controller Functions arc selected in Sct Up Mode the Controller initially displays the current valuc of the process variable in the upper display and the current value of the set point in the lower display Depression of the FUNC key will start the display sequence for the Controller Functions The Controller Functions parameters are explained in the following Subsections after which the Controller Functions are summarised in Table 4 1 4 3 1 Set Point SP This is the initial value of the process variable It can be adjusted within the range defined by the Set Point High Limit SPhi and the Set Point Low Limit SPLo This parameter cannot
72. or SSR drive ON relay energised or SSR drive ON OFF relay de energised or SSR drive OFF or on Controllers fitted with the VMD Output Option this indicator being ON indicates that the valve is opening OP2 Optional This indicates the state of the Output 2 relay or SSR drive ON relay energised SSR drive ON or Event Output relay energised OFF relay de energised SSR drive OFF or Event Output relay de energised or on Controllers fitted with the VMD Output Option this indicator being ON indicates that the valve is closing ALARM Optional This indicator flashes to indicate an Alarm condition see Subsection 4 6 for details of alarm operation RAMP This indicator is ON if the profile is currently executing a ramp MAN Not applicable if Auto Manual selection is disabled This flashes when Manual Control has been selected SET This indicates that Set Up Made is selected see Section 4 for details of Set Up Mode RUN This indicator is ON if a profile is currently running and flashes when a profile is Held Pt 34 FRONT PANEL CONTROLS Raise key Used to increase the value of the selected parameter if a profile is not running Lower key Used to decrease the value of the selected parameter if a profile is not running Run Time key Used to select de select Run Time Mode and to select any option in that mode Selects parameters in sequence for display 3 2 February 1990 IM0039 3 IM 0039
73. p Procedures OS a A AI SE t ttt tet SOT Ye SL LEED PR AM SS SO A A A load de Does the Process Variabl oscillate e SPS I SRS HCN IR IE GS NST TR COO PE OO GO OD cooling rate faster than the heating rate No Yes L K L AAN OS tt Adjust the cooling rate rCG until the heating rate equals the cooling rate A OOO ace is the UNA oscilation Ye steady 2 eS BH me Z O D Increase the Overlap OL until oscillation is steady Increase the Proportional Band Pb until the osc illation just ceases O utet in o To Ta Tato a a o o Te Ta Tn S435 0 47 a Su AZA Ta nl aT n n Ta a Sa Te a ATE n a a ea a o ata a PUPA RR e eee en ee ee 8 8 8 ae ees E O E O EDE EAEE E OO MIRNA O RAS a RO O O COO Pp DDAN DD p DD In p nnn IMOO39 4 February 1990 4 13 Section 4 3750 Programmer Controller IM 0039 Setting up Procedures installation and Operating Instructions 45 PROGRAMMER FUNCTIONS When the Programmer Functions are selected in Set Up Mode the Controller initially displays in the lower display the legend This is the Guaranteed Soak Hysteresis and is the first in the Programmer Function display sequence The upper display will show the value of this parameter The full Programmer Function lower display sequence is as shown below The upper display will show the value setting in each case Lower Display Function Upper Displa
74. pe 489 These illustrations show the location of the on board DIL switches and the link jumper positions With switch S6 be set ON the Controller parameters may be adjusted by the master device via the RS485 communication channel When switch S6 is set OFF the Controller will not adjust or change any of its parameters in response to commands received via the RS485 channel With switch S6 in either position the Controller will return the requested information in response to an interrogation message see Subsection 5 4 3 from the master device 5 3 RS485 CHANNEL SELECTION CONTROLLER OPERATING AS SLAVE For the Controller to operate as a slave the CoM Programmer Function must be set to Std see Subsection 4 5 Each slave Controller connected to a master device has assigned to it a unique channel address which enables the master to communicate with cach slave Controller individually The channel address is defined by the setting of switches S1 S5 on the Option Board thus providing up to 32 possible channel addresses for each master device The channel addresses are defined in Table 5 1 54 OPERATING THE CONTROLLER AS A MASTER DEVICE To operate the Controller as a master device the CoM Programmer Function must be set to MSt see Subsection 4 5 The only other requirement is to observe the data format and communications protocol described in later subsections 5 5 RS485 OPERATION 5 5 1 Character Transmission Data characters transmitt
75. pera ture 0 1 of span error for resistance OQ 10092 0 196 of span error for 3Q lead resistance lt 0 1 of span error for supply voltage within specified limits Light emitting diode LED display showing Four digit seven segment numeric display A wide range of function parameter legends Four pushbuttons Run Time Select Function Select Raise Lower 48mm 1 89 in 96mm 3 78 in 153mm 6 02 in 0 6kg 1 32 Ib Approximately 5VA February 1990 A 3 IM 0039 3750 Programmer Controller l Appendix 8 Installation and Operating Instructions Product Codes APPENDIX B PRODUCT CODES ad La Lisa ee La Model Number Mains Line Supply input Thermocouple Break Protection Output 1 Output Action Output 2 Alarm Event Output Options MODEL NUMBER M3750 MAINS LINE VOLTAGE L01 200V 240V nominal 50 60Hz L02 110V 120V nominal 50 60Hz L04 24V nominal 2 50 60Hz INPUT TYPE AND RANGE Thermocouple T1127 R 0 1650 C T1420 J 32 1400 F T1128 R 32 3002 F T1541 T 0 260 C T1227 S 0 1650 C T1542 T 32 500 F T1228 S 32 3002 F T1719 K 0 760 C T1415 J 0 205 C T1720 K 32 1400 F T1416 J 32 401 F T1723 K 0 1371 C T1417 J 0 450 C T1724 K 32 2500 F T1418 J 32 842 F T1983 B 100 1820 C T1419 J 0 760 C T1984 B 212 3308 F Thermocouple Break Protection T Upscale break protection standard T 21 Downscale break protection T 22 No break protection IMOO39 B F
76. put Recorder Output The selection of Output 2 type or Event Output the Alarm relay and the Recorder Output option is defined by link jumpers on the Options Board The locations of the link jumpers are shown in Figure 6 8 and the available link jumper settings are shown in Table 6 10 6 10 February 1990 IM0039 6 3750 Programmer Controiler Section 6 Installation and Operating instructions Re configuration MUI RAI EPIIT HUE EELS ELLE EE CECE EL ELLE Se PRAEFERT ELS AN A Satan aa eats Tt Na SS RN E AE pn thee E ARR IS AAC GON G Figure 6 8 Options Board 496 Link Jumpers Table 6 10 Options Board 496 Link Jumper Settings Link Jumpers Product Code LJ20 LJ21 LJ22 LJ23 LJ24 LJ25 C00 P P P P X C10 C0056 or CO0 56 X P P P X C50 X P P P X C0046 P P X X X C0047 P P X P X C0048 P X X P X C0049 P X X X X C0050 P X P P X C0051 P X P X X H70C0000 P P P P X Special software required Product Code LJ32 LJ33 Link jumpers LJ28 LJ29 LJ30 and X12 P X LJ31 must be parked X18 P P X19 X P X20 X X Recorder O P OFF P P P Parked X Fitted Not fitted 1M0039 6 February 1990 6 11 Section 6 3750 Programmer Controller IM 0039 Re configuration Installation and Operating Instructions 69 OPTIONS BOARD 497 This Options Board provides the controller with Recorder Output and DC Output The RS485 Communications Link Option is not available when this Options Board is fitted Th
77. put 1 Output 2 Event Output And Alarm Outputs DC Outputs Without X06 Option R5485 Communications Options Board Type 481 DC Output RS485 Communications Options Board Type 489 Options Board 496 Options Board 497 Changing the Mains Line Supply Voltage Assembling the Controller Specification for 3750 Programmer Controller Product Codes February 1990 IM 0039 Page 4 14 4 19 4 19 5 1 S 1 5 1 3 1 5 1 6 1 6 1 6 3 6 5 6 5 6 6 6 8 6 9 6 10 6 12 6 13 6 14 B 1 IM0039FM IM 0039 3750 Programmer Controlier Section 1 Installation and Operating Instructions Introduction SECTION 1 INTRODUCTION The WEST 3750 is a compact proportional plus integral plus derivative PID programmer controller The facilities include a wide range of inputs proportional cooling output and auto manual operation The options available include the capability to operate as either a slave or a master via an RS485 compatible serial communi cations link The front panel is equipped with red light emitting diode LED displays The 3750 can control temperature or other process variable to a pre determined profile This profile may comprise up to two ramps positive or negative gradient and up to two dwell soak periods and is easily programmed into the Controller by the user A cycling facility is included which enables the Controller if desired to repeat the profile automatically a pre determined number of times up to 9999 o
78. put impedance 250 ohms Resolution gt 10 bits Accuracy 0 5 of span Temperature Stability 0 025 C M0039 A February 1990 A 1 Appendix A Specifications Alarm Output Optional Alternative configurations Alarm Type Process High Alarm Fail safe Process High Alarm Band Alarm ve deviation direct acting ve deviation direct acting ve deviation reverse acting ve deviation reverse acting Relay RS485 COMMUNICATIONS LINK 3750 Programmer Controller installation and Operating Instructions Relay Energised PV below alarm value PV above alarm value PV within deviation band PV gt SP deviation PV lt SP deviation PV lt SP deviation PV gt SP deviation IM 0039 ALM LED Flashes PV above alarm value PV above alarm value PV outside deviation band PV gt SP deviation PV SP deviation PV gt SP deviation PV lt SP deviation SPDT contact rating2A resistive 120V 240V AC Relay life 10 operations Three wire transmit receive connections driven from an isolated power supply Transceiver conforms to EIA 0 1000 of span 1 1000 of span with VMD Open Loop Option fitted Standard RS485 CONTROL Proportional Band Cycle Time Output 1 Output 2 Relative Gain Overlap Deadband Integral Time Constant Derivative Time Constant 1 2 1 2 4 8 16 32 or 64 seconds 1 2 1 2 4 8 16 32 64 128 256 or 512 seconds 0 02 to 1
79. r indefinitely The Controller housing conforms to 1 8 DIN measurements and Controllers may be mounted conveniently side by side in multiple installations Power consumption is only 5 watts approximately therefore minimum ventilation is required 11 OPERATOR CONTROLS AND INDICATORS The Controller may be operated in any one of three modes User Normal Display Mode Function Set Up Mode or Run time Control Mode In User Mode if a profile is not currently running the operator may adjust the set point value and monitor the controller outputs if a profile is currently running only dwell set point adjustment is possible if enabled In Set Up Mode all profile data control parameters and programmer functions can be reviewed and adjusted In Run time Control Mode the operator may initiate hold suspend or abort a profile or may jump to the next segment of a currently running profile the operator may also select manual control if this is selected whilst a profile is running the profile is automatically held and will resume operation when the Controller returns to automatic control The Controller front panel has a number of operator controls and indicators to serve the following functions Upper display Normally displays the value of the process variable In Set Up Mode the value of set point and other control parameter values arc displayed after sclection by means of the front panel pushbuttons In Run time Control Mode this displays the
80. r ney eT p time proportioned non isolated DC sig nal 0V 12V nominal output pd i Hk E 18 j LDS nk Controllers Controllers Ali other with with Relay SSR configurations DC Output 1 Output 1 4 Recorder Output E d AAA NONN GON NNN MERERI eei al areh a A E E E ee Figure 2 15 Output 2 SSR Drive Connections 2 6 6 3 DC OUTPUT 2 PRODUCT CODES C21 C24 C61 OR C64 A AS Wait a a a s atas ORRETARA a Re x RR A FO aad M V NN RL HR RO a et a E DOLI t m e N a aA OOO ON RO Rod IS G Ei P F3 w F w Ei E E b D e Z L Reter to Appendix B for details of these a Controllers with All other _Recorder Output config urations Figure 2 16 DC Output 2 Connections 2 8 February 1990 IMO039 2 IM 0039 3750 Programmer Controller Section 2 Installation and Operating Instructions Installation 2 6 7 VMD Open Loop Output NOTE When the VMD Open Loop output is fitted the Event Output option is not available The following mutually exclusive additonal options are available RS485 Serial Communications Alarm Recorder Output This output cannot be re configured to any other type of output The connections fora VMD Open Loop Output are shown in Figure 2 17 The Controller is designed to switch on either the Output 1 relay or the Output 2 relay i e to open or close the valve However under fault conditions both relays can be switched on simultaneously An interlock can be provided for sa
81. s and set the derivative time constant rAtE to zero 3 Set the motor travel time tr to the time required for the valve to travel from fully open to fully closed or vice versa 4 Set the motor switching hysteresis hYSt to the minimum motor travel required expressed as a percentage of the full motor travel Follow the instructions shown in Figure 4 3 allowing sufficient time at each stage before performing the subsequent stage with the exception that the derivative time constant rAtE should remain at zero for Controllers fitted with the VMD Output option 4 10 February 1990 IM0039 4 IM 0039 3750 Programmer Controller Section 4 Installation and Operating instructions Setting up Procedures O RS O OSOS DI LOS ON NOAA START Apply power to the load Does Time the Process Yes Value continually oscillate Are No t the oscillations Yes decaying to zero Note the time Note the period interval Ta NO of the decaying Increase the Proportional Band by a factor of 1 5 oscillations Tb PA or tt Increase the Proportional Bandi by a factor of 1 5 Setthe Integral Time Constant to 15 2 Set the Derivative Time Constant to Tb 7 Set the Proportional Band to 1 2 Set the Integral Time Constant to Ta Set the Derivative Time Constant to Ta x 2 7 5 The Controlleris now approximately tuned E ES A RON I e RC E
82. se should it be necessary to transport the Controller to another site or to return it to the supplier for repair 2 Examine the delivered items to check for damage or deficiency If any is found notify the carrier immediately Check that the product code shown on the product code label affixed to the side of the controller corresponds to the Controller ordered 22 PANEL MOUNTING A STANDARD CONTROLLER 2 2 1 Pre Requisites The panel on which the Contr oller i IS to be mounted must be T igid IN and may he up to 6 00 mm 0 25 inches thick The cut out required 7 is as shown in Figure 2 1 Several Controllers may be mounted side by side i in a continuous cut out of width t 48n 4 mm or 1 89n 0 16 inches where n is the number of Controllers to be installed The Controller is 150mm 5 90 in deep measured from the rear face of the front panel The front panel is 96 00 mm 3 80 in high and 48 00mm 1 89 in wide when panel mounted it projects out o 9 6 00mm 0 25 in from the panel 3 92 00mm 0 80 0 00 3 62in 0 03 0 00 ata ta etat ee eate e EI OS SON a oer n n Se Tes a Te a e yo ACI A O O O O A NI 2 2 2 Panel Mounting Procedure RR ER RRA OO So iS PO Wette 1 Insert the rear of the Controller housing through the cut out from the front of the panel and hold the Control 2 ler lightly in position against the panel 2 Raichet Clamping Screw 2 Slide the mounting clamp i
83. sive The Standard Options Board Type 450 if fitted provides Output 2 Event Output and or an Alarm Output This Options Board is supplied in one of five forms Configuration Product Code Output 2 Event Output Relay no Alarm Output C10 or C0056 Output 2 SSR no Alarm Output C50 Output 2 Event Output Relay with Alarm Output C10 or C00 56 Output 2 SSR with Alarm Output C50 Alarm Output Only no Output 2 C00 The action of Output 2 is always the opposite of that for Output 1 i e if Output 1 is reverse acting Output 2 is direct acting or vice versa If Output 2 or Event Output is to be used link LJ20 on the Options Board see Figure 6 4 should be fitted If Output 2 or Event Output is not to be used link LJ20 should be parked To change the action of the Alarm Output links on the Options Board should be fitted in accordance with the information in Table 6 5 Refer to Subsection 4 6 for details of Alarm Output operation IM0039 6 February 1990 6 5 Section 6 3750 Programmer Controller IM 0039 Re configuration Installation and Operating Instructions Table 6 5 Alarm Output Link Jumper Settings Link Jumpers Product Code LJ21 LJ22 LJ23 f Alarm Output is not supplied link C 50 X P P jumpers LJ21 LJ22 and LJ23 are itted C 51 X P X iine C 46 p X X X Fitted P Parked C 47 P X P C 48 X X P C 49 X X X C 00 P P P iret tS AAP rtt ttt tura fA an tette Att Nt A A A a O RR SS Figure 6 4 Options Board
84. tallation installation and Operating Instructions Table 2 1 Thermocouple Cable Colour Codes Thermocouple Type Cable Material British American German French BS ASTM DIN NFE T Copper Constantan white Blue Red Yellow Blue Red Brown Blue Blue w Blue Brown Blue J Iron Constantan Yellow White Red Yellow Blue Red Blue Black Black Black Blue Black K Nickel Chromium Brown Yellow Red Yellow Nickel Aluminium Blue Red Green Purple Red Yellow Green Yellow R 13 Copper White Black Red Yellow S 1096 Copper Nickel Blue Red White Green Green Green White Green B Platinum Rhodium Grey Red Grey Colour of overall sheath 2 6 3 Three wire Resistance Temperature Detector RTD Input RTD connections are shown in Figure 2 9 with the compensating lead NN tte ele iate LE connected to Terminal 3 For two wire RTD inputs Terminals 2 and 3 should be linked The extension leads should be of copper and the resistance of the wires connecting the resistance element should not exceed 5 ohms per lead the leads should be of equal length 2 6 4 DC Linear Inputs Any one of a range of linear inputs can be accommodated on the Controller see Appendix B Connections for linear inputs are as shown in Figure 2 10 2 6 February 1990 Figure 29 Three wire RTD Input Connections a a ARO PR O MN ur 2 10 DC Linear Input
85. the Controller acts as a Slave device Product Code X06 or as a Master device Product Code X82 for controlling up to 32 slave controllers When the Controller operates as a Master device the current set point value is output to all 32 slave controllers and is updated to all controllers every four seconds The two possible settings are Std standard Slave configuration and MSt Master configuration IMOO39 4 February 1990 4 17 Section 4 3750 Programmer Controller IM 0039 Setting up Procedures Installation and Operating Instructions ertet te en Pa utu tatit DO A CD E EEE Ramp Active Rate Mode Extended Ram Increased DSP d Original DSP Reduced DSP Bp S Reduced Ramp Point at which DSP was changed Ramp Active Time Mode niei Original DSP gradient increased gradient decreased K T Reduced DSP Point at which DSP was changed Dwell Active Time Mode or Rate Mode tYPE inSt Increased DSP Original DSP E Reduced DSP DSP changed i at this instant 7 Dwell Active tYPE set to rMP Rate Mode E Increased DSP z K Ramp rate defined by rtri or rtr2 as appropriate Original DSP DSP Changed Reduced DSP 7 at this instant ON RAS ARE Figure 4 6 Dwell Set Point Change Strategy 4 18 February 1990 IM0039 4 IM 0039 46 ALARMS 3750 Programmer Controller Section 4 Installation and Operating Instructions Setting up Procedures Six possible configuratio
86. tions in the control or process conditions to be ignored eliminating fluttering in the valve motor This parameter can be adjusted within the range 0 04 to 5 of full travel The default value is 1 4 3 23 Manual Control Enable Disable EnbL This parameter determines whether Manual Control is enabled or disabled Default setting is 0 disabled IM0039 4 February 1990 4 7 Section 4 Setting up Procedures Parameter Set Point Output Power Proportional Band Integral Time Constant Derivative Time Constant Relative Gain 8 Overlap Deadband On Off Differential OP 1 Only OP 2 Only OP 1 amp 0P28 Set Point High Limit Set Point Low Limit Recorder Output Scale Maximum Recorder Output Scale Minimum Output 1 Power Limit 4 6 3750 Programmer Controller Installation and Operating Instructions Table 4 1 Controller Function Ranges Default Values Legend 5p UP Pb r REL rHEE CLL I dif d LC d FF RDH SPL o roPH roPl OPR N l Range Between SP High Limit and SP Low Limit 100 to 10096 Adjustable in Manual Control Not applicable for VMD Output 096 to 100096 of span 196 to 100096 for VMD Output 10 secs 30 mins and OFF VMD Output 10 secs 99 mins 59 secs no OFF setting available 00 secs 10 mins 0 02 1 00 and ON OFF gt 1 00 20 to 20 of Proportional Band 0 196 to 1096 of span of Controller
87. using 2 5 Replacement of the Controller in its Housing 2 6 Connections and Wiring 2 7 Inductive Loads External Contactors And Mains operated Relays 3 Operating Instructions 3 1 Introduction 3 2 Displays User Mode 3 3 Front Panel Indicators 3 4 Front Panel Controls 3 5 Self test Procedure 3 6 Normal Display 3 7 User Mode Instructions 3 8 Run time Mode Instructions 3 9 Default Parameter Indication 3 10 Remote Control via the RS485 compatible Link 4 Setting up Procedures 4 1 To Enter Set up Mode 4 2 Profile Data 4 3 Controller Functions 4 4 Tuning the Controller IMOO39FM February 1990 Contents Page 1 1 1 1 1 1 2 1 2 1 2 2 2 2 2 3 2 3 2 11 3 1 3 1 3 3 2 3 2 3 3 3 3 3 3 3 4 3 8 3 8 4 1 4 1 4 2 4 5 4 310 ii Contents Section 4 5 4 6 4 7 5 5 1 22 5 3 5 4 5 5 6 6 1 6 2 6 3 6 4 6 5 6 6 6 7 6 8 6 9 6 10 6 11 Appendix A Appendix B iv 3750 Programmer Controller installation and Operating instructions Title Programmer Functions Alarms Leaving Set Up Mode Operation via an RS485 compatible Serial Communications Link RS485 Connections Activating the Communications Link Controller Operating as Slave RS485 Channel Selection Controller Operating as Slave Operating the Controller as a Master Device RS485 Operation Range changing and Re configuration Dismantling the Controller Changing Input Ranges Changing The Action Of Out
88. utput is reversed Example For a 0 5V recorder output this value corresponds to 5V output 4 3 11 Recorder Output Scale Minimum roPL This parameter defines the minimum scale value of the Recorder Output Terminals 10 and 11 and may be adjusted over the range 1999 to 9999 The decimal point position for the Recorder Output scaling always corresponds to that for the process variable input range If the Recorder Output Scale Minimum is adjusted to be greater than the Recorder Output Scale Maximum the relationship between the process variable value and the Recorder Output is inverted Example For a 0 5V recorder output this value corresponds to OV output 4 3 12 Output 1 Power Limit OPhi This is used to limit the power level of Output 1 and may be used to protect the process If no protection is required this parameter may be set to 100 This parameter is omitted if Proportional Band 0 4 3 13 Output 1 Cycle Time Ctl The selection of cycle times is dependent upon the process being controlled For relay outputs the cycle time should be as large as possible consistent with satisfactory control in order to maximise relay life If the SSR Drive Output is fitted the cycle time may be selected from the lower values in the permitted range The permitted range of values 1s 1 2 1 2 4 8 16 32 and 64 seconds This parameter is omitted from the Set Up sequence if Proportional Band 0 4 3 14 Output 2 Cycle Time Ct2 The
89. wards from the bottom of the front panel see Figure 6 1 and pull them downwards until the bottom of the PCBs are released and can be withdrawn backwards grasp the guides at the top of the front panel and disengage the top edges of the PCBs The two PCBs may now be removed from the front panel assembly 3 Extract the screw securing the Options Board to the pillar on the CPU Board Carefully pull the two Boards apart ensuring that the two Boards remain parallel to each other in order that the plugs and sockets linking the two Boards are not bent or distorted IM0039 6 February 1990 6 1 Section 6 3750 Prograrnmer Controller IM 0039 Re configuration Installation and Operating Instructions PONIA A O NN AA iad ee O El O o Ww O U o us NM etel ette tte aO io s E Z z e 7 F Z E 2 p4 tette DIMA n N IMMER MAM Screw securing CPU Board to bracket CPU Board SHN Figure 6 1 Det Ha ES re Ds AE E A E O RR AA Options Board NNI MSS G E Screw securing Options Board o to pillar on CPU Board i VF IA LEE ERUNT RR PEEL e UH ANI SHEEP Ce Figure 6 2 Separa ing the Two PCBs 6 2 February 1990 1M0039 6 M 0039 6 2 1 A Controller fitted with a thermocouple input may be re configured to a different thermocouple input by changing jumper links on the CPU Board see Figure 6 3 as show
90. will come under Manual Control and the Controller will exit Run Time Mode The MAN indicator will flash the upper display will show the process variable value and the lower display will show the percentage power output in the form P JUU The value of output power may be adjusted using the Raise and Lower keys as required The output power value can be varied in the range 0 100 for controllers fitted with Output 1 only or in the range 100 10076 for controllers fitted with both Output 1 and Output 2 NOTES 1 On Controllers with the VMD Output Option in Manual Control Mode the Raise and Lower keys are used as follows a The Raise key is used to energise the Open Valve relay and will cause the OP 1 indicator to go ON b The Lower key is used to energise the Close Valve relay and will cause the OP 2 indicator to go ON IMOO39 3 February 1990 3 5 Section 3 3750 Programmer Controller IM 0039 Operating Instructions Installation and Operating instructions NOTES Continued 2 If the Controller is powered down whilst in Manual Control mode it will remain in Manual Control mode when power is restored to the Controller The power output level will be as it was at the instant of power down 3 8 2 Selecting Auto Control Mode To select Auto Control Mode on a Controller which is currently in Manual Mode 1 Depress the Run Time key the Controller will display Hbrt Auto YES NLC h If the profile is Held If the profile
91. y Default P L L Guaranteed Value or blank Blank Soak Hysteresis L rH Track and Hold YFG no no b b YES no no OPE os Ent COOL COOL r P vero CHEE EPE AE m5P sa SP Pu 15P PEEL vr Abr Conk Hbrt SPL Sa YES no YES EA A Col Secs SEd PISE SEd 4 5 1 Guaranteed Soak Hysteresis GSH This defines the maximum deviation between Process Variable and Set Point which will allow dwell timing to start If the deviation exceeds this value the start of dwell timing will be suspended in order to allow time for the Process Variable to come closer to the Set Point Whilst the dwell timing is suspended the lower display will flash in normal display mode When the deviation becomes less than the Guaranteed Soak Hysteresis the dwell timing is started If the Guaranteed Soak Hysteresis is set to a value equal to the span of the Controller e g if a DC Linear Input is fitted Scale Range Maximum Scale Range Minimum the upper display goes blank and this facility is inoperative OFF Note that once dwell timing is started it will not be affected by any deviation outside the Guaranteed Soak Hysteresis band 4 14 February 1990 1M0039 4 IM 0039 3750 Programmer Controller Section 4 Installation and Operating instructions Setting up Procedures 4 5 2 Track and Hold Selection trAC When the Track and Hold facility is selected if the Process Variable and the Set Point differ by more than the value of the Guaranteed Soak Hysteresis para
92. ysteresis Active Track and PCIA ON ARS A Guaranteed 2m seem Soak DD O O A RA E l Dwell Dwell Dwell Timing Timing Timing Running Suspended Running Timing suspended whenever deviation is outside the GSH value NSDL Sea DED em KEY Guaranteed Soak Hysteresis Set Point CE Process Variable AAA A RRA RAH ARAR ARAR ARR RATE AREA hte ee E ee ee MR OR NR OR UR OE RR POINT AAA RARA RR RIA Figure 4 5 Guaranteed Soak Hysteresis Track and Hold 4 16 February 1990 alue dl pul oa LM uer Hysteresis nu a x ex Mac alue i Atta fats Serre rere IMOO39 4 IM 0039 3750 Programmer Controiler Section 4 Installation and Operating Instructions Setting up Procedures 4 5 8 Dwell Set Point Change Permission SPCh This parameter allows or inhibits the alteration of the dwell set points during the running of the profile YES Changes permitted no Changes inhibited 4 5 9 Dwell Set Point Change Strategy tYPE This parameter defines the response to a change in dwell set point value whilst the profile is running if this is permitted by Dwell Set Point Change Permission see Subsection 4 5 8 This parameter may bc sct to inSt instantaneous change or rMP ramp to new value The operation of this parameter is explained in Figure 4 6 This parameter appears only if the Ramp Programming Method is set to Rate 4 5 10 Communications Type Selection CoM This parameter defines whether
93. zing together the plastic retainer clips CAUTION Do not run the inter connecting cable in close proximity to power carrying cables 24 REMOVAL OF THE CONTROLLER FROM ITS HOUSING The Controller can be removed from its housing for servicing purposes or to replace sub assemblies leaving the housing and back wiring attached to the mounting panel CAUTION The mains line supply must be disconnected from the Controller before any attempt is made to remove the controller from its housing 2 2 February 1990 IMO039 2 IM 0039 3750 Programmer Controller Section 2 Installation and Operating Instructions Installation The Controller contains a lithium battery and devices which are sensitive to electrostatic discharge During handling of the Controller precautions should be taken to minimise the risk of electrostatic discharge or short circuiting of the battery i e Do not place the unhoused Controller ona conducting surface PA Touch only the edges of the PCBs in the Controller Ensure that fingers do not come into contact with any of the components or tracks on the PCB E Before handling the unhoused Controller touch a nearby ground connection e g a metal bench frame or rack 2 If possible wear an earth wrist strap whilst handling the un housed Controller 2 IF BATTERY REPLACEMENT IS REQUIRED THIS SHOULD BE PERFORMED BY A TRAINED TECHNICIAN e To remove the Controller from its housing proceed as fol

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