- DL manuals
- Watlow
- Controller
- Ramping and Profiling Microprocessor-Based Control SERIES 1500
- User Manual
Watlow Ramping and Profiling Microprocessor-Based Control SERIES 1500 User Manual
Summary of Ramping and Profiling Microprocessor-Based Control SERIES 1500
Page 1
Adjust actual user's manual 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 control $10.00 made in the u.S.A..
Page 2: Use The Manual
Watlow series 1500 user's manual 2 blf1090 use the manual this manual will make your job easier. Reading it and applying the information is a good way to become familiar with the series 1500. Here's an overview. Introduction, chapter 1, page 4. A sample program in action, chapter 2, page 16. Install...
Page 3
Watlow series 1500 user's manual 3 contents contents 59 restarting a program 59 remote hold input 60 data communications 60 communication parameters 60 protocol 60 command rules & words 61 syntax 73 data communication error codes 74 troubleshooting 75 field calibration procedure 80 specifications 82...
Page 4: Starting Out
Starting out 4 watlow series 1500 user's manual starting out, chapter 1 chapter 1 starting out with the watlow series 1500 "read me first." congratulations, you're about to become a fully-qualified user of the watlow series 1500! It is a versatile microprocessor-based control; powerful, yet simple t...
Page 5: Starting Out
Starting out watlow series 1500 user's manual 5 starting out, chapter 1 control because it will move from one process variable to another in a uniform manner. Operator-friendly features include automatic "prompts," or entry codes, to assist you in programming and monitoring. The series 1500 has othe...
Page 6: Starting Out
Starting out 6 watlow series 1500 user's manual starting out, chapter 1 how to set the dip switches the watlow series 1500 has a set of dual in-line package (dip) switches on circuit board, a007-1318. The location of the board and switches appear in figure 2.The switches are clearly numbered; the "o...
Page 7: Starting Out
Starting out watlow series 1500 user's manual 7 starting out, chapter 1 quick wire you may "power up " the series 1500 with the following operational check-out. This procedure also prepares you for the sample program in chapter 2. Or, you may skip this section and the sample program, and go directly...
Page 8: Starting Out
Starting out starting out, chapter 1 8 watlow series 1500 user's manual figure 4 - quick wire simu- lated sensor wiring 3. If you did not set dip switch #6 in the "on" position before, do that now: disconnect power from the unit. Open the 1500, set dip switch #6 to on for a cold start. Replace the c...
Page 9: Starting Out
Starting out starting out, chapter 1 watlow series 1500 user's manual 9 overview of the three operating modes before getting into the details of the series 1500's keys and displays, take a look at figure 5, showing the three different modes. After you feel comfortable with the names of the modes and...
Page 10: Starting Out
Starting out starting out, chapter 1 10 watlow series 1500 user's manual ch sel key: channel select--selects either channel 1 or channel 2 for the actual display. Actual display: shows the actual value of the variable in channel 1 or channel 2, in four digits. % rh led: when lit indicates per cent r...
Page 11: Starting Out
Starting out starting out, chapter 1 watlow series 1500 user's manual 11 data display: indicates the entered data or monitored value in four digits. Chg para led: when lit indicates the processor is in the change parameter mode. Function display: shows the prompts used in the three modes. It also di...
Page 12: Starting Out
Starting out 12 watlow series 1500 user's manual starting out, chapter 1 now that you have a good idea how the 1500's front panel works, look again at the operating modes. This time take a more detailed look. Overview of the mode software again, the series 1500 has threeoperating modes: monitor data...
Page 13: Starting Out
Starting out starting out, chapter 1 watlow series 1500 user's manual 13 figure 7 - monitor data (mntr data) mode overview monitor data mode (mntr data): monitoring a halted program you may look at any step, but must be in the chg data mode to change the step number. You'll see: • step type. • ch-1 ...
Page 14: Starting Out
Starting out 14 watlow series 1500 user's manual starting out, chapter 1 figure 8 - change data (chg data) mode overview a simple, regular profile step. Set point (sp): this step# is an sp step. Set point for ch-1. Set point for ch-2. Auxiliary (event) outputs, on/off. Step duration. Go to any next ...
Page 15: Starting Out
Starting out starting out, chapter 1 watlow series 1500 user's manual 15 where to go from here you are now ready to go to the sample program, chapter 2, or to installation and wiring, chapter 3. If you skip the sample program, do not forget to check the position of dip switch 6 before you begin prog...
Page 16: Sample Program
Sample program 16 watlow series 1500 user's manual sample program, chapter 2 important note: if you have a series 1500 t/c version, or are using the rtd version for 2 channels of temp- erature control (temp-temp), then simply consider all sample program references to relative humidity as a second ch...
Page 17: Sample Program
Sample program watlow series 1500 user's manual 17 sample program, chapter 2 setting event outputs to make the pie process even more automated, you have your toppings — sugar, cinnamon and nutmeg—connected to solenoid dispensers controlled by the 1500's "event outputs." as you enter the sample progr...
Page 18: Sample Program
Sample program 18 watlow series 1500 user's manual sample program, chapter 2 ! Caution: this sample pro- gram will activate some of the "control outputs" and "event outputs" on the series 1500 terminal strips. To avoid any damage to your equipment while running the sample program, be sure all event ...
Page 19: Set The Recycle Option
4. 5. 6. 7. Press the enter key: the display will flash, then it will change to “mn.” use the up/down keys to place the correct value for minutes into the data display; then press enter. The display will show “sc” (seconds): again use the up/down keys to place seconds into the display and then press...
Page 20: Sample Program
Sample program 20 watlow series 1500 user's manual sample program, chapter 2 4. We suggest that you enter a time one hour from right now. Changing this time later is a simple matter. You go to the chg data mode with "wh" displayed and then enter the new time. Select hours (0 to 23) and press enter. ...
Page 21
Programming steps 3 through 6 now that you see how it’s done, enter the data for set point steps #3,4,5, & 6. But, be sure to stop and then return to these instructions when the display reaches “07 sp.” this is because you will be looping through steps #4 through #6 three times. Refer to the table b...
Page 22: Almost Ready To Run
Almost ready to run remember that step #1 was a “wait step.” even though you press the “run” key, you won’t see any action until the time you programmed into step #1. You may want to go back and adjust that time to a different value. There are various ways to get back to step #1 in chg data mode. Yo...
Page 23
C. D. E. F. While in the halt condition, the series 1500 maintains the set points and event output conditions from the step it was in when it was halted, or from last step before a “blank step” halted the control. If you restart the control, having made no change to the step data, the 1500 will comp...
Page 24
C. In your sample program’s wait step, you used “wait for time” because you aren’t connected to a variable oven yet. A more common use of the wait step could be as follows: l in step #2, you have allowed exactly four minutes to reach 400°, 90%rh. Depending upon your system, this may either be imposs...
Page 25: Sample Program
Sample program, chapter 2 sample program watlow series 1500 user's manual 25 however, remember that step #1 is programmed as a "wait step," so it will wait until the same time tomorrow. Since you now know what a wait step does, you may want to reprogram step #1 as a simple "set point" step so that y...
Page 26: Installation-Wiring
Installation-wiring installation - wiring, chapter 3 26 watlow series 1500 user's manual chapter 3 how to install and wire the 1500 this chapter tells you how to install and wire the series 1500. There are also some suggestions for sensor installation. Also, be sure to look at the noise reduction gu...
Page 27: Installation-Wiring
Installation-wiring installation - wiring, chapter 3 watlow series 1500 user's manual 27 use distilled water to avoid mineral deposits on the wick that can change the %rh reading. The wicking distance should be as short as practical. The cotton wick must be free of any sizing and starch. The "float ...
Page 28
2. 3. 4. 5. 6. 7. 8. 9. 10. 11. C. Shielded rtd sensor with the shield terminated to the series 1500 case and to an existing ground plane. Physical separation and wire routingmust be given careful considerationin planning the layout of the system.. For example, a.C. Power supply lines should be bund...
Page 29: Installation-Wiring
Installation-wiring installation - wiring, chapter 3 watlow series 1500 user's manual 29 input power wiring microprocessors are in a way like trout… they require a clean environment to be successful and to prosper. A clean environ- ment means on one level an environment that is free of excessive dus...
Page 30: Installation-Wiring
Installation-wiring installation - wiring, chapter 3 30 watlow series 1500 user's manual keep the line "clean." do keep low power control wires physically separated as far as possible from line voltage wires. Also keep all controller wiring separate from other nearby wiring. Physical separation is e...
Page 31: Installation-Wiring
Installation-wiring installation - wiring, chapter 3 watlow series 1500 user's manual 31 noise suppression devices available from watlow watlow winona stocks a few key noise suppression parts. You may order these by calling your local watlow distributor. Item electrical ratings part number common mo...
Page 32
How to eliminate noise watlow part number for quencharc: 0804-0147-0000 call watlow customer service for mov part number. Cautlon: whenever attempting to open a series 1500 with data communications (rs-422/423 interface), be sure your system’s db-15 male connector is not connected to the rear of the...
Page 33: Installation-Wiring
Installation-wiring installation - wiring, chapter 3 watlow series 1500 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 to 0.25 figure 13 - ...
Page 34: Installation-Wiring
Installation-wiring 34 watlow series 1500 user's manual installation - wiring, chapter 3 installation procedure to mount the watlow series 1500: 1. Make a panel cutout per the dimensions in figure 10. 2. Remove the series 1500 chassis from its case by turning the front panel screw ccw. Grip the beze...
Page 35: Installation-Wiring
Installation-wiring installation - wiring, chapter 3 watlow series 1500 user's manual 35 k signal conditioner rtd version ( - ) ( + ) ch-2 0-5v input with dip #3 off dry bulb sensor ch-1 input ch-2 input analog signal common % rh analog output analog output ch-2 ° f (wet bulb) analog output ch-1 ° f...
Page 36: Installation-Wiring
Installation-wiring 36 watlow series 1500 user's manual installation - wiring, chapter 3 ! Fig. 15 - event output, remote hold input and event input connections for dual solid state relay version event input/output, 0.5 amp solid state relay event outputs can be powered by a line (up to 240vac) inde...
Page 37: Installation-Wiring
Installation-wiring installation - wiring, chapter 3 watlow series 1500 user's manual 37 event input/output, open collector model # 150_ - _ _ _ 2 - _ _ _0 temp & rh control output, power supply input, open collector fig. 15a - event output, remote hold input and event input connections for dual sol...
Page 38: Installation-Wiring
Installation-wiring 38 watlow series 1500 user's manual installation - wiring, chapter 3 chassis ground l2 l1 power supply input, temp & rh control output 115vac for 115vac control operation, install a jumper wire from terminal 32 to terminal 35, and a separate jumper wire from terminal 33 to termin...
Page 39: Installation-Wiring
Installation-wiring installation - wiring, chapter 3 watlow series 1500 user's manual 39 where to go from here now you are ready to program and tune your series 1500. If you haven't read the sample program information in chapter 2, please do so now. Or if you already understand how to program the se...
Page 40
Technical reference 40 watlow series 1500 user's manual programming, chapter 4 programming chapter 4 technical reference this section of the series 1500 manual is compiled for easy reference and rapid information retrieval. Notice the page headings as you thumb through the section; they will assist ...
Page 41
Technical reference watlow series 1500 user's manual 41 programming, chapter 4 programming chg data caution: be sure dip sw-6 is in the off (warm start) position before you begin pro- gramming; all your entries will be saved when power normally, the 1500 should be in the warm start condition. In col...
Page 42
Technical reference press to light chg data led. Press to select the step type you want: sp, jl, vvt or nx. Press enter to select individual prompts. Press to select values. Figure 20 - chg data mode flow diagram press to enter data into memory. S e r i e s 1500 d i s p l a y s step function data i ...
Page 43
Technical reference at the end of a program, orin a hatted condition, the series 1500 wiil continue to hold set points and event outputs at the same states they were in at the end of the final step or when the program was halted. Example: if you press the run/halt key at 1-1/2 minutes into a step, t...
Page 44
Technical reference 44 watlow series 1500 user's manual programming, chapter 4 here's an example: • you start a step #4 at 400 ° (step #3's set point), and ramp uniformly down to 275 ° (step 4's set point). • if you "loop back" from step #6, your starting point will be the step #6 set point and not ...
Page 45
Technical reference watlow series 1500 user's manual 45 programming, chapter 4 wt (wait) step programming this submode allows the series 1500 to wait for channel 1 and/or channel 2 actual process inputs and/or the real time of day. You can wait for one or two of these conditions, or all of them. If ...
Page 46
Technical reference altering a program note: if you have the opt ional battery backed clock, the time may already be correct. You cannot alter data or parameters while the program is running. The 1500 must be in the halt condition. If you want to move to a diierent step # to see what is programmed t...
Page 47
Technical reference watlow series 1500 user's manual 47 programming, chapter 4 this section will also vary accord- ing to the flow chart depending upon dip switch #4 (single or dual pid). Guarded access minutes with the up/down keys. Press enter. The prompt sc will appear. Select correct seconds wit...
Page 48
Technical reference 48 watlow series 1500 user's manual programming, chapter 4 • rt (rate) select a rate value with the up/down keys. Then press enter; press fctn. • rb (rate band) rate band defines where the rate function will occur. The rate band will occur at one to seven times the proportional b...
Page 49
Technical reference alarms the 1500 system provides four basic alarm conditions in each of the two control channels. They are, with mnemonic abbreviations: upper process - up upper deviation - ud lower process - lp lower deviation - ld a “process” alarm, you will recall, is available at an absolute ...
Page 50: Alarm Display Codes
Technical reference alarm display codes h in the function display, indicating the type of alarm. These alarm messages are listed below. The first two are operational alarms that have no effect on alarm/event outputs. A0 - low ram back up battery a5 - ch - 1 lower deviation exceeded note: al - power ...
Page 51: Event Outputs
Technical reference event outputs one of the most versatile features of the series 1500 is its capability for event outputs. An “event output” is simply a preprogrammed on/off event. There are eight total, four for each channel during each individual step. The event may turn any number of peripheral...
Page 52: Analog Retransmit Outputs
Technical reference analog retransmit outputs each sensor input signal level is made available at an “analog retransmit” output for chart recording or other uses. See terminals 1,2,3,4 and 11, page 35. The scaling of these outputs varies with sensor type and function. The following is a summary of. ...
Page 53
Program # programmer date ga cod 5.. Dual pid : .:. ,:, . . : ., dual pid ch pmpt parameter 1 default 1 range your i low high units setting up ch - 1 upper process alarm 999 -99 999 ° f 538 -99 538 °c lp ch - 1 lower process alarm -99 -99 999 °f , -99 -99 538 °c cl ud ch - 1 upper deviation alarm 99...
Page 54
Technical reference use this chart to determine parameter ranges, limits and default settings. Then enter your setting for each parameter. Make a photocopy of the chart and enter values for each program you use. Program # system programmer date g a ch pmpt parameter default range your . Setting low ...
Page 55
Technical reference use this chart to determine parameter ranges, limits and default settings. Then enter your setting for each parameter. Make a photocopy of the chart and enter values for each program you use. Program # system programmer date series 1500 dip switch settings . Sw-position function ...
Page 56
Technical reference 56 watlow series 1500 user's manual programming chart chart 6 - programming chart, chapter 4 make photocopies of this page and the previous page, then record your parameters and entire program step by-step. Prog. No. _______ system _______ programmer _______ date _______ page ___...
Page 57
Programming chart technical reference watlow series 1500 user's manual 57 chart 6 - programming chart, chapter 4 make photocopies of this page and the previous page, then record your parameters and entire program step by-step. Prog. No. _______ system _______ programmer _______ date _______ page ___...
Page 58: Recommended Tuning Reference
Technical reference tuning caution: be sure the series 1500 is in a warm start condition (dip switch #6 off) in order to save your tunlng entrles. Also record your experimental, and then final settlngs on a copy of the guarded access chart available in this sectlon of the manual. For optimum control...
Page 59: Manual Tuning
Technical reference manual tuning for optimum control performance, tune the 1500 to the themal system. The tuning settings here are meant for a broad spectrum of applications; your system may have somewhat different requirements. Refer to the key flow charts, diagrams and defini- tions on pages 42 -...
Page 60
Technical reference 60 watlow series 1500 user's manual to run and halt a program here is how to run and halt series 1500 programs. How to run a program when you have all program steps defined and entered, press restart to return the processor to step 01. Then press run/halt to begin the program. Ho...
Page 61
Data communications, commands and syntax in this section you’ll learn the series 1500 data communications. See figure 14 in chapter 1 for rs422 and rs423 pin designations, and also for locating and making the required rs422/423 jumper selection. The series 1500 data communications package provides y...
Page 62
Technical reference command rules the following listing shows the command and the typical series 1500's response string. The labels beneath each parameter in a command or response string are here for your information only: they will not appear on your computer screen. . . . . . . . . . . . . . . . ....
Page 63: Command Words
Technical reference command words the series 1500 recognizes and responds to the following list of syntactical command words through a serial communication interface. Act? Mtr? St?? Stp ptr? Ptr gal? Ga1 ga2? Ga2 sts? Sts alm? Requests actual process inputs. Requests information on the current step....
Page 64: Command Words and Syntax
Technical reference command words and syntax here is a list of the command words with the syntax. Limits for all parameters are in the guarded access and general parameters charts located in this section of the series 1500 manual. Note: decimal points in general are not available for the series 1500...
Page 65
Technical reference s t p ? - - requests.The programmed informatlon for step# - - . The first response parameter is the step type: 0000 = blank step 0001 = set point step 0002 = jump loop step 0003 = wait for step - sample transmission: stp? 22 blank step - stp? L = unprogrammed parameter 0000 step ...
Page 66
Technical reference walt step- stp? *=unprogrammed parameter 0 0 0 3 ---.- - - - . - - - - - l *** step wait for wait_ wait for type . Ch-1 ch-2 event sample response: 0003 1234 0840 0001 l **** 0015 0010 0030 stp program a step. ---- ---- ---- wait for wait for wait for minutes real time the first ...
Page 67
Technical reference jump loop step - stp sample transmission: stpl202100004 wait step - stp l = unprogrammed parameter — — 03 step step ch-1 set ch-2 set wait for hf. Mn. # type point point wait for real time of day sample transmission: stp 14 03 2100 0900 1*08 30 00 ptr? Requests real time of day, ...
Page 68
Technical reference tim? Requests real time of day only _d -- -- hr mn sc 12 34 56 tim enter real time of day only mn sc sample transmission: tim 23 59 59 lim? Requests upper and lower set point limits --- - --- ch-1 upper limit .- ch-1 lower limit sample response: 8765 4321 1234 -123 --- w ch-2 upp...
Page 69
Technical reference rcy? Request the recycle option -- recycle sample response: 01 rcy enter the recycle option sample transmission: rcy o1 gai? Single pid: - chl prop. Band m--b- -d-m ---- w-w- __d_ chl chl chl chl chl reset rate rate time sample response: 0048 0012 0034 0003 0029 0021 0012 dual pi...
Page 70
Ga2? Technical reference sample response: 00480012003400030029 00210012 dual pid: - - - - - - - - ch2 ch2 ch2 prop. Reset rate rate calib. Prop. Reset rate rate band lime offset band lime heat heat heat sample response: 0048 0012 0034 0003 0029 0021 0012 0058 0021 0043 0000 0020 ga2 single pid: --*-...
Page 71
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 ...
Page 72: To Go
Technical reference pda? Request values for the process and devlatlon alarm set points. Sample response: 0999 -099 0555 -555 0101-001 0999 -099 0999 -999 pda enter values for the process and deviation alarm set points. Chl lower chl ch2 upper ch2 lower deviation sample transmission: pda 0999 499 055...
Page 73
Technical reference data communication error codes when you query “err?” using the correct protocol, a series 1500 linked to a computer will respond with these 3-digit data communications error codes. The code will appear on your computer screen. A definition listing for each code is in the right-ha...
Page 74
Technical reference 74 watlow series 1500 user's manual bad sensor, chapter 4 bad sensor indication and troubleshooting indication when a bad (open or shorted) sensor occurs for ch-1 or ch-2, theactualdisplay will show "- - - - ". The series 1500 control outputs in both channels de-energize when a b...
Page 75
Field calibration technical reference field calibration, appendix watlow series 1500 user's manual 75 use the regular resistance values (in parenthesis) for calibrating jis curve #3916. Use the resistance values in brackets for calibrating din curve #3850. Field calibration procedure — rtd calibrati...
Page 76
Field calibration technical reference 76 watlow series 1500 user's manual field calibration, appendix calibrate channel 1 ° f output 7. Remove (+) plus lead from e-120 and connect to term. 4. Set ch-1 input to (92.93) [93.03] ohms. Adjust ch-1 sc-lo pot for 0.000v on dvm. Ch-1 actual should be 000.0...
Page 77
Field calibration d calibration technical reference field calibration, appendix watlow series 1500 user's manual 77 equipment needed 1. One millivolt source (two if doing both channels simutaneously). 2. Two board connectors, watlow p/n z100-0285-0000. 3. One c/j (cold-junction) compensator (omega "...
Page 78
Bration technical reference 78 watlow series 1500 user's manual field calibration, appendix calibration 1. Document dip switch settings and values in guarded access, pages 54 & 56. 2. Set series 1500 dip switches 3 & 6 on, all others off. 3. Set mv source as follows. Type setting j -0.885 mv, (0 ° f...
Page 79
Technical reference field calibration, appendix watlow series 1500 user's manual 79 10. Repeat steps 5-8 until all the readings are correct with no further adjustments necessary. 11. Turn power off. Set dip switch #7 on (deg. C). Move dvm (+) plus lead to signal conditioner connector terminal 11 (te...
Page 80
Specifications general features technical reference . . . . . . . . . • . Dual channel closed loop control. Temperature and relative humidii. 51 time-based steps for ramping. 8 event outputs per step. 1 event input. 1 remote hold input. Data communications interface optional. Fully programmable para...
Page 81
Technical reference temperature ranges: .. -100 1400°f k t/c: -100 to 2500°f r t/c: 500 to 3200°f rtd. -99.9 to 9999°f _* or -73 to 760°c o r -73 to 1371 °c or 260 to 1760°c or _-99.9 to 537.7% t/c inputs must be ungrounded. %rh ranges (on channel #2 only) and user selectable. Range limits are 0.0 t...
Page 82
Technical reference series 1500 b = standard c = battery-backed real time clock 1 = two rtds 2 = one rtd &one 0-5vdc 3 = two j t/c 4 = two k t/c 5 = two r t/c channeis 1 & 2 control outputs aa = 2 s.S. Relays, 0.5a. Bb = 2 s.S. Switches, 10vdc, 5ma auxilliary outputs/lnputs 0 = none 1 = 8 discrete o...
Page 83
Technical reference technical service if something goes wrong the series 1500 is a designed for long life and durable service. If, however, some- thing should go wrong, call watlow at 507-454-5300, and ask for an application engi- neer. We’ll help you with the problem right on the phone. Warranty in...
Page 84
Shipping claims technical reference when you receive your watlow series 1500, examine the package for any signs of external damage it may have sustained enroute. If there is apparent damage either outside the box or to its contents, make a claim with the shipper immediately. Always save the original...
Page 85
Glossary this glossary includes general thermal system control terms; not all are used with the series 1500. Actual display data: displayed information which gives the operator/programmer real or “actual” data, i.E., actual time of day, actual process temperature, or actual process relative humidity...
Page 86
Derivative: deviation: dip switch: dual in-line package (on/off) switch. Display capability: in a digital indicating instrument, the entire span that can be indiiated if fully utilized. Droop: duty cycle: event output: guarded access: halt condition: hysteresis: hunting: input: integral: isolation: ...
Page 87
Overshoot : condition whereby process changes. Temperature exceeds set point due to initial power up or proportioning control. P control parameter: any of a set of physical properties electronic control to given inputs. Whose values determine the response of an pd control: pi control: pid control: p...
Page 88
Restart: rtd: set point: signal conditioner: single .Mode cont rol : span: switching sensltlvlty: thermal system: thermocouple: thermocouple break protection: three mode control: time-in-step: time proportioning control: trlac: solid state switching device. Two posltlon control: an on/off control. W...
Page 89
A alarms, 49 alarm codes, 50 almost ready to run, 22 analog retransmit, 52 0 opening the 1500, 5, 32 overview, input & output fig. 1.4 overview, operating modes, fig. 5, 9 overview, mntr data, fg. 7,13 b overview, chg data, fig. 8.14 before you begin (programming), 18 overview, chg para, fig. 9.15 b...
Page 90: Series 1500 Quick Reference
90 watlow series 1500 user's manual quick reference sp = set point step: program set points, events and time. Jl=jump loop step: program step # to jump to, and # of times to repeat that step. Wt=wait step: program a step to wait for… ch-1 condition, and/or ch-2 condition, and/or an event, and/or a r...