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Technical Reference

ALM?

Request current alarm code information.

Sample Response:
0018

Note: These

alarms are additive and may occur in any combination. To decode, use the following list.

Subtract out the largest possible integer first, then the next largest possible integer, and so on.

The integer 16 is the largest possible integer to subtract out, leaving a remainder of 2.

The integer 2

stands alone. Thus Alarm Codes

and 2 are now present in the system.

AlarmCode

•

128

•

256

512

Low RAM back-up battery.

Power interrupt.

Ch-1 Actual has exceeded UP, the upper process alarm value.

CH-1

Actual has exceeded LP, the lower process alarm value.

Ch-1 Actual has exceeded Ud, the upper deviation alarm value.

Ch-1 Actual has exceeded Ld, the lower deviation alarm va!ue.
Ch-2 Actual has exceeded UP, the upper process alarm value.

Ch-2 Actual has exceeded LP, the

lower

process alarm value.

Ch-2 Actual has exceeded Ud, the upper deviation alarm value.

Ch-2 Actual

has exceeded Ld,

the lower deviation alarm value.

ALM 00

Clear all alarm conditions now occurring.

Sample Transmission:
ALM 00

NXS --

Put

the Series 1500

into

Step - - now.

Sample Transmission:

NXS 25

ERR?

Request the last communcation error code

and clear the error code register to 0.

Error codes are listed in the Error Code

section following this one.

Sample Response:

0111

Data Communications, Commands and Syntax, Chapter

4 WATLOW Series 1500 User's Manual 71

Содержание Ramping and Profiling Microprocessor-Based Control SERIES...

Страница 1: ...al Series 1500 Watlow Controls Inc 1241 Bundy Blvd Winona MN 55987 507 454 5300 Fax 507 452 4507 W150 MA30 9043 October 1990 Supersedes W150 MA20 8843 Ramping and Profiling Microprocessor Based Contro...

Страница 2: ...t or its performance A full explanation is in the narrow column on the outside of the page Technical Assistance If you encounter a problem with your Watlow control review all of your configuration inf...

Страница 3: ...mple Program Steps Table 3 31 Noise Suppression Device Ratings Table 4 Charts 17 Series 1500 Sample Program Chart Chart 1 53 RTD Guarded Access Chart Chart 2 54 T C Guarded Access Chart Chart 3 55 RTD...

Страница 4: ...e switch output for activating periphered equipment or processes Models with optional communica tions may be connected to a computer via a serial communications interface The Series 1500 will handle 5...

Страница 5: ...s alarm points control parameters recycle events and time These default values provide minimum operating instructions until you enter your data The default values are listed in Chapter 4 Technical Ref...

Страница 6: ...ed only as long as alarm condition exists RTD Unit Only 3 ON The Ch 2 sensor is an RTD sensor Jumpers W151 and W153 on the Signal Conditioner board A007 1316 must be installed OFF The Ch 2 inputs is a...

Страница 7: ...strip the Series 1500 will show a flashing A digit in the FUNCTION display The digit is an alarm code The ACTUAL display will show four steady dashes meaning open sensor These are normal displays for...

Страница 8: ...rsion will simulate input sensors at room temperature for this procedure Make the correct connections using Figure 4 For an RTD unit connect a 107 resistor provided across Terminals 5 and 6 and anothe...

Страница 9: ...p type program loops wait for conditions set points auxiliary event outputs ON OFF and step duration Monitor Data Mode MNTR DATA OR Change Parameter Mode CHG PARA Set up or change system wide para met...

Страница 10: ...splay Figure 6 Series 1500 Front Panel Components How to Read the Displays and Use the Keys Here s an understanding of the Series 1500 displays keys and LEDs Use Figure 6 to locate the keys LEDs and d...

Страница 11: ...GUARDED ACCESS data is not cleared TIME LED When lit indicates that the FUNC TION and DATA displays are showing time DOWN key Acts opposite the UP key Ramps the value in the DATA display downward A l...

Страница 12: ...eter These modes change with the MODE key They make up the basic software routines that run the Series 1500 Each mode has sub routines and different prompts that appear in the FUNCTION display wheneve...

Страница 13: ...ep but must be in the CHG DATA mode to change the step number You ll see Step type Ch 1 and Ch 2 set points Auxiliary outputs programming Step duration Monitoring a Running Program You may look at the...

Страница 14: ...Repeat that step __ times Jump Counts Go to any next step a means to wait for a particular condition or time This Step is a WT step Wait for this Ch 1 value to occur __ Wait for this Ch 2 value to occ...

Страница 15: ...ult values Cold Start Figure 9 Change Parameter CHG PARA Mode Overview Program These Parameters Set Recycle Option program repeat Set up Ch 1 PID parameters and calibration offset Set up Ch 2 PID para...

Страница 16: ...e Sample Program Let s assume that Great Grandma handed down to you her secret recipe for wonder ful apple pie It s not that her ingredients are so different but she took great care to control baking...

Страница 17: ...hen you want them to You even have an Event Output to put your pies in and take them out of the oven at just the right times You ll need to turn the Events ON as follows STEP CH 1 EVENTS CH 2 EVENTS 1...

Страница 18: ...mode to watch things happen CHG DATA This is the mode where you ll enter program operating DATA set points time interval for each step and Event Outputs In this mode you can also change data or corre...

Страница 19: ...ressing FCTNuntil GA comes around again 2 Place 0006 one of the Guarded Access codes into the Data Display using the UP DOWN keys 3 Press ENTER untilthe RC RC Recycle prompt appears in the Function Di...

Страница 20: ...02 SP and you do want to enter Set Point Data first press ENTER The display changes to S1 Set Point for Ch 1 2 Use the UP DOWN keys to put 400 0 into the display Some practice may be necessary to stop...

Страница 21: ...The display changes to JS Jump to Step Enter the number of the step the program will jump to 0004 Press ENTER The display changes to JC Jump Count 4 Since you want to jump back to Step 4 two times to...

Страница 22: ...mmed time Now use the MODE key to move to the CHG PARA mode with the TlME LED also ON You can watch as real time approaches your programmed time When the times match the step numberchanges to 02 You w...

Страница 23: ...ginning conditions depend on the step performed just previously Know where you are going and where you ve been C Step 4 of your Sample Program is an example l As the chart on page 17 shows you expect...

Страница 24: ...to 2 Any value from 1 to 255 can be used in loops of this type B If you program 0 into JC the JUMP will occur infinitely This action could set up a never ending loop if the jump is backwards Oryou ca...

Страница 25: ...data for this step only will clear and you can now reprogram it 6 Interactive Changing of Set Points and Events When in the halted condition the Series 1500 actively maintains the current set points a...

Страница 26: ...ickel Silver sheath made for fast temperature response The detector element is platinum wire 100 at 0 C with a temperature coefficient of 0 003916 C The sheath is 0 1875 in 5 mm diameter 2 75 in 70 mm...

Страница 27: ...hese sensors should be moderate The sensors must be thermally insulated from the sensor mounting Both thermocouples must be un grounded to obtain correct readings Wiring Practices for Preventing Noise...

Страница 28: ...control circuit signals must travel over two feet or when they are bundled in parallel with other signal wires not line voltage or load wires The size or gauge of wire should be selected by calculati...

Страница 29: ...are ways to achieve a minimum level of clean input power protection In almost all cases these guidelines will remove the potential for input power problems If you ve applied these measures and still...

Страница 30: ...ions or other low power lines going to the control Don t use conduit for computer ground Don t have phase angle fired devices in the same electrical enclosure or on the same power line with the contro...

Страница 31: ...ise Choose the one best suited for your system if you are unsure which one to use see Figure 12 For very dirty or critical application use micro computer regulated power supply or Uninterruptable Powe...

Страница 32: ...l circuit and at the same time buffed the control circuit from A C line noise Devices like a Corcom use media electromagnetic filtering other than electric circuits to filter out the electrical noise...

Страница 33: ...00 User s Manual 33 Bezel 1 180 0 500 7 000 5 375 0 015 8 68 Note All dimensions in inches Note All dimensions in inches 6 0 6 0 5 433 SQ MIN 5 472 SQ MAX or 5 7 16 Nominal Your Panel Thickness 0 06 t...

Страница 34: ...r 230 VAC jumper 33 to 35 Attach Chassis Ground to 34 If you wish to disable Channel 2 Figure 18 will show you how to do that Figure 19 provides the pin configuration for units equipped with RS 422 RS...

Страница 35: ...o Terminals 5 and 6 with a jumper wire from Terminal 6 to Terminal 7 For Channel 2 attach the leads to Terminals 8 and 9 with a jumper wire from Terminal 9 to Figure 14 Signal Conditioner Connections...

Страница 36: ...Temp RH Control Output Power Supply Input 0 5 Amp Solid State Relay Figure 16 Power Supply Input Temp RH Output Connections for Dual Solid State Relay Version NOTE The control power outputs for each...

Страница 37: ...Input Temp RH Output Connections for Dual Solid State Switch Version CH 1 Heat Load CH 1 Cool Load CH 2 Humidify or Heat Load CH 2 De humidify or Cool Load Power See Figure 17 next page 25 26 27 28 2...

Страница 38: ...e line ground wire to Terminal 34 Figure 17 Power Supply Input CH 1 CH 2 Output Connections CHASSIS GROUND L1 L2 Required when running Ch 1 TEMP control without Ch 2 RTD T C 1 Select TT 1 for TEMP TEM...

Страница 39: ...rticularly helpful in recording your program You must also set the RS 423 RS 422 Jumper for a communications interface Put the jumper on W423 for RS 423 or on W422 for RS 422 DB 15 Connector W423 W422...

Страница 40: ...in this section This will enable you to program the Series 1500 quickly and without mistakes Together the Series 1500 Programming Chart the Guarded Access Chart and the General Parameter Chart will p...

Страница 41: ...key to select the data for the DATA display Then press the ENTER key to enter the data The display will momentarily blank then the entered data will re appear for a short duration and then self prompt...

Страница 42: ...ctual time of day values for each and press ENTER The Blank Step Any unprogrammed step is first a Blank Step before information entered makes it a Set Point Jump Loop or Wait Step A Blank Step halts t...

Страница 43: ...to right Press ENTER E2 Channel 2 Event Outputs Again select a 1 or a 0 for eachof the four available events 1 ON 0 OFF The DATA display shows the 1 or 0 entry for Events 4 l through 1 from left to r...

Страница 44: ...roces sor never reaches Step 7 See the example below Use simple loops in your programs You ll find hints to programming below JS Jump Step selects the step to jump to press ENTER JC Jump Count selects...

Страница 45: ...ank or when a 0 is in the display When waiting for Time program all three units HR MN SC If you program only 53 for Minutes but enter nothing for Hours or Seconds the programmed time will be 53 minute...

Страница 46: ...ter Mode CHG PARA Press the mode key to select the Change Parameter CHG PARA mode The TIME LED will be ON The FUNCTION and DATA displays will show the real time of day Press FCTN to produce the time p...

Страница 47: ...ters are more fully explained in the Alarm reference section p 46 Ranges for your particular unit are in the charts on pages 49 or 50 UP Upper Process Type Alarm Select an alarm point of this type for...

Страница 48: ...e UP and DOWN keys Press ENTER press FCTN L2 Ch 2 Low Set Point Limit Place the Channel 2 lower set point limit in the DATA display with the UP and DOWN keys Press ENTER press FCTN LC Front Panel Keyb...

Страница 49: ...When any one of a channel s alarms is triggered the Event 4 indicator on the Series 1500 front panel for that channel will light If the Event Output Alarm Option is selected the number of events per c...

Страница 50: ...ime clock and a short power interruption occurs the 1500 will pick up the program where it left off The program however will be running behind the real time clock correct time by the duration of the p...

Страница 51: ...rogram the Events in the CHG DATA Mode entering them in a 1 ON O OFF manner for each step The four place DATA display shows the ON OFF status reading from left to right beginning with Event Output 4 o...

Страница 52: ...F 0500VDC 1 00 0 F 0 000VDC 0 0 F 5 000VDC 1 000 0 F Ei uum O OOOVDC 0 C 1 250VDC 250 C 2 500VDC 500 C If using RH 0 000VDC 0 0 RH 0 500VDC l00 0 RH If using 0 0 500V option 5 000VDC 1 00 0 RH If usin...

Страница 53: ...0 00 20 00 repeats min 1 1C RT Ch 1 Rate 1C Rb Ch 1 Rate Band 1C CT Ch 1 Cycle Time 2H Pb Ch 2 Prop Band 2H RS Ch 2 Reset 2H RT Ch 2Rate 2H Rb Ch 2 Rate Band 2H CT Ch 2 Cycle Time 2 db Ch 2 Dead Band...

Страница 54: ...Ch 1 Lower Process Alarm 99 99 3200 F 99 99 1760 C Cl Ud Ch 1 Upper Deviation Alarm 3200 0 3200 F 1760 0 1760 C Cl Ld Ch 1 Lower Deviation Alarm 999 999 0 F 999 999 0 C c 2 UP Ch 2 Upper Process Alarm...

Страница 55: ...e in the ON position 6 ON 1 Cold Start on power up Memory cleared parameters set to default values I I 1 6 OFF 1 Warm Start on power up Programmed values are retained for all parameters 1 I 7 ON C fun...

Страница 56: ...ent Outputs 4 3 2 1 4 3 2 1 Step Type Set Value Step Type HR Set Point SP Jump Loop JL Wait For WT HR WH WE S1 JS W1 S2 W2 JC Set Point SP Jump Loop JL Wait For WT HR WH S1 JS W1 S2 W2 JC WE Set Point...

Страница 57: ...No _______ System _______ Programmer _______ Date _______ Page _______ of _______ E2 E1 JL Wait For WT WH WM W1 W2 WE Set Point SP Jump Loop JL Wait For WT HR MN WH WM S1 JS W1 S2 W2 JC WE Set Point...

Страница 58: ...tation Technology Third Edition by Curtis D Johnson Hardcover 1982 497 pp ISBN 0 471 05789 4 approx 37 00 Its overall objective is to provide instructional material for a general understanding of proc...

Страница 59: ...because the initial reset value is 0 00 repeats per minute The ACTUAL temperature will stabilize below the desired set point When Pb 0 RS Rb RT and Ct are inoperative and the 1500 functions as a simpl...

Страница 60: ...he set point at the instant of termination How to Restart a Program Press the RUN HALT key to restart the program The PROGRAM HALT LED goes out If you entered no new data or did not change steps durin...

Страница 61: ...can select one of two hardware interfaces 1 RS422A for a multidrop or multiple device network up to ten devices total with 4000 network length limit or 2 RS 423A RS 232C compatible for one on one comm...

Страница 62: ...negative value Whenever you send an STP command to enter step parameters the Series 1500 is automatically halted The correct protocol must be applied to each command string for the communications to f...

Страница 63: ...ode infonnation ALM 00 Clear all alarm codes NXS ERR PDA PDA TIM TIM LIM LIM LOC LOC RCY RCY Put the Series 1500 into Step Request the last communication error and then clear the error code to 0 Reque...

Страница 64: ...f the binary number totaling the states of the events for each channel Each of the event outputs has a 1 state for ON or a 0 state for OFF If DIP SW 1 is ON there are 4 events per channel 8 total If D...

Страница 65: ...Unprogrammed parameter 0000 Step Type Ch 1 set Point Ch 2 set Point Set Point Step STP Step Ch 1 Set Ch 2 Set Ch 1 al 2 Hr Mn Type Point Point Events Events DurationOf The Step Sample Response 000112...

Страница 66: ...terStepparameters the Series 1500 haIts automatically Blank Step STP Unprogrammed parameter 00 l l l l l l l S t e p Ch1 Set Ch 2Set Ch 1 Ch 2 Hr Mn Sec T y p e Point P o i n t Events Events Duration...

Страница 67: ...ime of day and upper and lower set point limits w D s HR MN SC Ch 1 upper C h 1Lowet Ch 2Upper Ch 2Lower RealTme Clock Limit Limit Limit Limit Sample Response 08 25 00 9999 999 9999 999 PTR Enter real...

Страница 68: ...sponse 8765 4321 1234 123 w CH 2 UpperLimit CH 2LowerLimit LIM Enter upper and lower set point limits Ch 1UpperLimit Ch 1 Lower Limit CH 2Upper Limit CH 2Lower Limit SampleTransmission LIM 8765 4321 1...

Страница 69: ...eat Heat Cool Sample Response 0048 0012 0034 0003 0029 0021 0012 0084 0021 0043 0000 0020 Ch1 Ch1 Prop Reset Ch1 Ch1 Ch1 Ch1 Rate Cycle Dead Ch1 Calib Time Band Offset SampleCommand GA1 0048 0012 0034...

Страница 70: ...0012 Dual PID w e w B B _ __d_ 3 w ctl2 Ch2 Ch2 P r o p Reset Rate Rate Calib P r o p Reset Rate offset Heat Heat Heat Heat Heat E SampleCommand GA2 0048 0012 0034 0003 0029 0021 0012 0058 0021 0043...

Страница 71: ...has exceeded LP the lower process alarm value Ch 1 Actual has exceeded Ud the upper deviation alarm value Ch 1 Actual has exceeded Ld the lower deviation alarm va ue Ch 2 Actual has exceeded UP the up...

Страница 72: ...mmunications we recommend that you put the capability to wok You may write computer programs based on this command syntax You will also be able to build and store profiles for the Series 1500 72 WATLO...

Страница 73: ...out of limit 113 Ch 1 Upper Limit is out of limit 114 Ch 1 Lower Limit is out of limit 115 Ch 2 Upper Limit is out of limit 116 Ch 2 Lower Limit is out of limit 117 Proportional Band for Ch 1 is out...

Страница 74: ...ing Follow this procedure to troubleshoot a suspected bad sensor 1 Remove power from the unit 2 Check each sensor input with an ohmmeter at the terminals with the sensor installed Use the Connection L...

Страница 75: ...line voltage per wiring diagrams on page 37 3 Connect decade box for Channel 1 S1 to Term 5 S2 to Term 6 and S3 to Term 7 Short S2 to S3 at decade box 4 Connect decade box for Channel 2 S1 to Term 8...

Страница 76: ...ecessary Calibrate RH Output 14 Remove DVM plus lead from Term 3 and connect to Term 2 Set Ch 1 and Ch 2 inputs to 136 59 135 97 ohms Adjust F S pot for 0 500VDC on DVM Ch 2 Actual should read 100 0 1...

Страница 77: ...ioner CH 1 Input Terminals observe proper polarity per diagram on page 35 4 If calibrating both channels at the same time also connect a C J Compansator to the CH 2 terminals 5 If calibrating one chan...

Страница 78: ...TP100 TP99 for CH 2 and adjust Zero Adjust Pot for the following DVM reading at TP 100 TP99 for CH 2 Then verify that Actual reads as follows Type DVM Reading Actual Reading J 0 0VDC 0 003 0 F 3 K 0...

Страница 79: ...reading Actual should read the value shown Type mV Source DVM Reading Actual Reading J 39 40mV 1300 F 1 100VDC 0 003 704 C 3 K 52 93mV 2400 F 2 055VDC 0 003 1315 C 3 R 20 28mV 3100 F 2 662VDC 0 003 17...

Страница 80: ...d 20 On Off or 20 with PID l Alarm parameters user selectable l Latching or non latching both channels l Process high low and deviation high low per channel l 51 steps each selectable as l Set point v...

Страница 81: ...ate relay 0 5A 24VAC min 253VAC max opto isolated zero cross switching or l DC switched open collector solid state switches 10VDC 5mA Eight event outputs programmed per step or l Six event outputs pro...

Страница 82: ...lays 0 5A and 2 dry contact inputs event remote hold 2 8 discrete outputs S S switches 1 OVDC 5mA and 2 dry contact inputs event remote hold Communications A None C Electrically Isolated RS422 423 Mod...

Страница 83: ...ReturningMerchandise 1 2 3 4 5 Call Watlow Customer Service 507 454 5300 for a Return Material Authorlzatlon RMA number before returning any item for repair We need this information Ship to address l...

Страница 84: ...products in business since 1922 Watlow boasts the ability to begin with a full set of specifications and to complete an industrial product that is manufactured totally in house in the U S A Products...

Страница 85: ...ts step duration waitfor or jumploop conditions andauxiliaryoutputstatus Change Parameter Mode CHG PARA Set up the system step information for the Series 1500 including realtime highandlowrangelimits...

Страница 86: ...ess codes The GA parameters include alarm types PID parameters dead band cycle times calibration offset recycle option 2 channel temperature control device address and the front panel bck Indicated by...

Страница 87: ...aph Program Step A numbered step in a process control program which contains parameters for causing a predictable response by the control its own specific Ramping Progressing from one set point to ano...

Страница 88: ...input signal for use in the control Includes linearization and or sensorexcitiation Proportioning control Distance in degrees or other units between the minimum and maximum operating limits of a sens...

Страница 89: ...d Access Chart Chart3 54 H Halt Conditions 22 Helpful Hints 22 24 Ramping Conditions 23 Wait Step 23 Jump Loop Step 24 Recycle 24 I Installation Procedure 34 R Ramping Conditions 23 43 Rate 48 Rate Ba...

Страница 90: ...round in the Series 1500 Software ENTER ENTER Monitoring a Set Point SP Step in a running program Monitoring a Wait WT Step in a running program ENTER ENTER U1 Ch 1 Upper Set Point Limit L1 Ch 1 Lower...

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