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Watlow Ramping and Profiling Microprocessor-Based Control SERIES 1500 User Manual

Ramping and profiling microprocessor-based control
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Series 1500
ACTUAL
ADJUST
Ramping and Profiling
Microprocessor-Based
Control
User's Manual
Watlow Controls, Inc: 1241 Bundy Blvd., Winona, MN 55987 507/454-5300, Fax: 507/452-4507
W150-MA30-9043
$10.00
October, 1990
Made in the U.S.A.
Supersedes:
W150-MA20-8843

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  • Page 1 Series 1500 ACTUAL ADJUST Ramping and Profiling Microprocessor-Based Control User's Manual Watlow Controls, Inc: 1241 Bundy Blvd., Winona, MN 55987 507/454-5300, Fax: 507/452-4507 W150-MA30-9043 $10.00 October, 1990 Made in the U.S.A. Supersedes: W150-MA20-8843...

  • Page 2: How To Use The Manual

    Use The Manual This manual will make your job easier. Reading it and applying the information is a good First... way to become familiar with the Series 1500. Here's an overview. Introduction, Chapter 1, Page 4. Starting Out Sample Program A Sample Program in Action, Chapter 2, Page 16.

  • Page 3: Table Of Contents

    Page Item Starting Out with the Series 1500 -Chapter 1 General Description Opening the 1500 Setting the DIP Switches Quick Wire Overview of the 1500 Modes Reading the Displays and Keys Overview of the Software Learning the Series 1500: A Sample Program in Action - Chapter 2 ApplePie Sample Program Sample Program Chart...

  • Page 4: Read Me First

    Starting Out 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 to learn. In this chapter of the user's manual, you'll get an overview of the 1500 and its software. You'll "light"...

  • Page 5: Packing List

    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 other display codes to indicate a variety of alarm conditions about your process. The 1500 also has a "Jump Loop" option for repeating program steps or segments.

  • Page 6: Dip Switch Position And Function

    Starting Out 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. switches are clearly numbered; the "ON" direction is indicated by an arrow. Look at the DIP switches from the bottom of the control. You'll see them as they appear below.

  • Page 7: Quick Wire

    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 to Chapter 3, Installation and Wiring.
  • Page 8 Starting Out 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 control chassis in the enclosure. Reapply power to the unit.
  • Page 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 their functions, go ahead to learn the keys and displays. Monitor Data Mode (MNTR DATA) Examine current...

  • Page 10: Series 1500 Front Panel Components

    Starting Out 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 displays described here. Try everything! You'll learn quickly how the 1500 works. The detailed overviews in the next section will further your knowledge.
  • Page 11 Figure 6 (Con't) - Series 1500 Front Panel Components PROG END LED: PROGRAM END-- Indicates that the processor has reached the end of the program. CLEAR (erase) key: a. Clears alarm codes from FUNCTION display in MONITOR DATA mode. b. Clears the step in the STEP display in CHANGE DATA mode when the unit is in the HALT condition.

  • Page 12: Overview Of The Software

    Starting Out 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 three Operating Modes: Monitor Data, Change Data and Change Parameter.
  • Page 13 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 and Ch-2 set points. • Auxiliary outputs programming. •...
  • Page 14 Starting Out Change Data Mode (CHG DATA): Figure 8 - Change Data (CHG Three Step Types for Entering Program Data DATA) Mode Overview Set Point (SP): a simple, regular profile step. WATLOW Series 1500 User's Manual Jump Loop (JL): a means for jumping to a step out of numerical...

  • Page 15: Change Parameter (Chg Para) Mode

    Change Parameter Mode (CHG PARA) For Entering System-Wide Parameters Program Real Time Then proceed to one of three "Guarded Access" areas – code-protected system setup parameters. Program These Program These Parameters: Parameters: Set Ch-1 & Ch-2 Set Recycle Option alarm type and (program repeat).

  • Page 16: Learning The Series 1500: A Sample Program

    Sample Program Chapter 2 Learning the Series 1500 — A Sample Program in Action This chapter will guide you through an easy sample program for the Series 1500. You can quickly grasp the necessary terms and concepts by entering and observing this exercise.

  • Page 17: Modes Of Operation

    Temp/ Step 1 Step 2 (Wait) Temp/ Step 1 Step 2 (Wait) 50%RH 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."...

  • Page 18: Clear Memory, Set Dip Switches

    Sample Program Before you begin entering the program, notice three small lights (LEDs) on the bottom half of the 1500's front panel. They are labeled "MNTR DATA" (Monitor Data), "CHG DATA" (Change Data), and "CHG PARA" (Change Parameters). Press the MODE key to move through these three modes as you read about each one. Another LED, labeled "TIME"...
  • Page 19 Press the the display will flash, then it will change to “MN.” ENTER key: to place the correct value for minutes into the Data Use the UP/DOWN keys 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 ENTER.
  • Page 20 Sample Program Programming Step 2 Refer again to the program chart. Note that the values you want to achieve are 400 , 90%RH. You want the 1500 to accomplish this in four minutes. You also want to have Ch-1 Events 1, 2 and 4 ON, and Ch-2 Events 1 and 2 ON during Step #2. We will now program all this data for Step #2: display is indicating that Step #2 is programmed for a duration of 00 hours, 04 minutes, 00 seconds.

  • Page 21: Programming

    Programming Steps 3 through 6 Now that you see how it’s done, enter the data for Set Point 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. Steps #3,4,5 Refer to the table below for FCTN...

  • Page 22: Start Your Program

    Almost Ready to Run Remember that Step #1 was a “Wait Step.” Even though you press the “RUN” key, you won’t see You may want ways to get back to Step #1 in CHG DATA mode. Your display is now reading “08 NX 0009”;...

  • Page 23: Ramping Conditions

    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 complete the step from the time it stopped.

  • Page 24: Jump Loop Step

    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: Jump Loop Step In the sample program, you used this capability to jump from Step #6 back to Step #4 two times.

  • Page 25: Where To Go From Here

    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 you can view the Recycle action.

  • Page 26: Sensor Installation Guidelines

    Installation-Wiring 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 guidelines before making your panel cutout. Sensor Installation Guidelines Temp-RH In this 1500 configuration, a dry bulb RTD measures temperature on Channel 1.

  • Page 27: Noise Sources

    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 valve-trough" systems should also re- move the water when the ambient temperature goes below freezing or above boiling.
  • Page 28 Physical separation and wire routingmust be given careful consideration in planning should be bundled together and physically kept separate from input signal lines (very low power level). Keep all switched output signal lines (high power level) separate from current control loop signals (low power level). Excessive lead length in a two-wire RTD sensor can create indication errors.

  • Page 29: Input Power Wiring

    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 dust, moisture and other airborne pollutants. But primarily it means a "clean" source of input power from which to base all its operations.
  • Page 30 Installation-Wiring 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 extremely effective. A 12 inch minimum separation is usually effective.

  • Page 31: Differential Common Mode Filter Diag

    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 Common Mode Line Filter Differential Mode Line Filter Metal Oxide Varistor Line Filtering Configurations for Controls These three diagrams show you filter configurations for removing input power noise.

  • Page 32: Pre-Installation Information

    How to Eliminate Noise Watlow Part Number Use “Quencharcs” to suppress noise generated by devices such as relays, relay contacts, solenoids, motors, etc. A Quencharc is a simple filter for Quencharc: device using a .1µf, 600 volt, non-polar capacitor in series with a 100 0804-0147-0000 ohm, 1/2 watt resistor.

  • Page 33: Unit And Panel Cutout Dimensions

    1.180 Bezel Mounting bracket Your Panel Thickness: 0.06 to 0.25 Installation - Wiring, Chapter 3 8.68 7.000 Note: All dimensions in inches. 5.433 SQ. MIN. 5.472 SQ. MAX. or 5- 7/16 Nominal Note: All dimensions in inches. Installation-Wiring 0.500 Figure 13 - Unit and Panel Cutout Dimensions 5.375...

  • Page 34: Installation Procedure

    Installation-Wiring Installation Procedure ” WARNING: To mount the Watlow Series 1500: To avoid electric shock, make all 1. Make a panel cutout per the dimensions in Figure 10. connections on 2. Remove the Series 1500 chassis from its case by turning the front panel screw the terminal strips CCW.

  • Page 35: Signal Conditioner Connections And Jumpers

    SIGNAL CONDITIONER RTD Version Analog Output Ch-2 F (Wet Bulb) Analog Output Ch-1 F (Dry Bulb) CH-2 ( + ) 0-5V input with DIP #3 ( - ) Analog Output Ch-1 C (Dry Bulb) Analog Output Ch-2 C (Wet Bulb) Not used on Signal Conditioner Board #A007-1316 SIGNAL CONDITIONER T/C Version...

  • Page 36: Power Supply Input, Temp & Rh Output Conn

    Installation-Wiring Fig. 15 - Event Input/Output, 0.5 Amp Solid State Relay Event Output, Remote Hold Input Model # 150_ - _ _ _ 1 - _ _ _0 and Event Input Connections for Dual Solid State Relay Version NOTE: Event outputs can be powered by a line (up to 240VAC) independent of the...
  • Page 37 Event Input/Output, Open Collector Model # 150_ - _ _ _ 2 - _ _ _0 Event Common CH-2, Event 4 Load CH-2, Event 3 Load CH-2, Event 2 Load CH-2, Event 1 Load CH-1, Event 4 Load CH-1, Event 3 Load CH-1, Event 2 Load CH-1, Event 1 Load Temp &...

  • Page 38: Power Supply Input, Ch-1 & Ch-2 Output Conn

    Installation-Wiring Power Supply Input, Temp & RH Control Output Figure 17 - Power Supply Input, CH-1 & CH-2 Output Connections CAUTON: Fuse load and power outputs properly. Failure to do so could cause damage to your equipment and property. Figure 18 - To Disable Channel 2 Wiring to Disable Channel 2...

  • Page 39: Where To Go From Here

    RS-423A (RS-232C) Jumper Pin 3 to Pin 11 Receive (Data In) RS-422A Rec + Rec - 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. A007-1484 DB-15 Connector Where To Go From Here Now you are ready to program and tune your Series 1500.

  • Page 40: Technical Reference - Chapter

    Technical Reference 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 you in finding what you need. How to Program the Series 1500 Here's how to enter a program into the Series 1500 through the front panel.

  • Page 41: Programming Chg Data

    Technical Reference Normally, the 1500 should be in the Warm Start condition. In Cold Start, all program information will be lost when power is applied to the unit. DIP Switch #7 sets the temperature scale at C or F. DIP Switch #8 is not used, set it to the OFF position. Recycle Option You may request that your program repeat indefinitely by selecting RC=1 in the GA = 6 area of the CHG PARA mode.

  • Page 42: Halt Conditions

    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. Press to enter data into memory. m HR lzlm Figure 20 - CHG DATA Mode For the WT (Wait) submode, do this: With SP displayed, press FCTN until WT Flow Diagram...
  • Page 43 Technical Reference At the end of a program, or in a hatted condition, the Series 1500 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, the control would hold an oven at that step’s set points and Event states.

  • Page 44: Set Point Step Programming

    Jump Loop Step 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 the Step #3 set point.

  • Page 45: Wait Step Programming

    Technical Reference 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 you don't need one wait condition, just press the FCTN key, and the next Wait prompt will appear.

  • Page 46: Altering A Program

    Altering NOTE: You cannot alter data or parameters while the program is running. The 1500 If you have the must be in the HALT condition. opt ional battery backed clock, the If you want to move to a diierent Step # to see what is programmed there and time may already then modify that step, enter the CHG DATA mode.

  • Page 47: Guarded Access Programming

    Technical Reference minutes with the UP/DOWN keys. Press ENTER. The prompt SC will appear. Select correct seconds with the UP/DOWN keys. Press ENTER; GA will appear. GA (Guarded Access) Programming The Guarded Access parameters control the process limits. The three GA parame- ter loops are restricted to operators by special codes.
  • Page 48 Guarded Access • 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 band. With a "0" entry, rate is always in effect.

  • Page 49: Alarms

    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 Lower Process - LP A “process” alarm, you will recall, is available at an absolute process level. A “deviation”...

  • Page 50: Alarm Display Codes

    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 Al - Power intenupt NOTE: - Ch - 1 Upper Process exceeded An 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 devices ON or OFF to assist you in controlling your process, system or environment.

  • Page 52: Analog Retransmit Outputs

    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. scaling: RTD Units -0500VDC...
  • Page 53 Program # Ch Pmpt Parameter Ch - 1 Upper Process Alarm Ch - 1 Lower Process Alarm Ch - 1 Upper Deviation Alarm Ch - 1 Lower Deviation Alarm 2 Upper Process Alarm Ch - 2 Lower Ch - 2 Upper Deviation Ch - 2 Lower Deviation Alarm Ch - 1 Prop.
  • Page 54 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 G A Ch Pmpt Parameter Code 0000 1 Upper Process Alarm...
  • Page 55 Technical Reference Use this chart to determine parameter parameter. Make a photocopy of the chart and enter values for each program you use. System Program # Series 1500 DIP Switch Settings Function Sw-Position Event Output #4 for both Ch-1 and Ch-2 are alarm outputs. #1 -ON #1 - OFF Event Output...

  • Page 56: Programming Chart

    Programming Chart 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 _______ of _______ Step Step # Type Set Point Jump Loop Wait For Set Point Jump Loop...

  • Page 57: Programming Chart

    Technical Reference 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 _______ of _______ Wait For Set Point Jump Loop Wait For Set Point Jump Loop Wait For...

  • Page 58: Simple On/Off Control

    Tuning For optimum control performance, it is necessary to tune the Series 1500 to your thermal system. At this point you should already have a program profile entered into the 1500. This profile needs to be as nearly typical of your system requirements as you are able to predict.

  • Page 59: Manual Tuning

    Technical Reference Manual Tuning performance, tune the For optimum control settings here are meant for a broad spectrum of applications; your system may have different requirements. somewhat tions on Pages 42 - 61 for prompt location and description. Repeat this tuning procedure for both Channel 1 and 2.

  • Page 60: Run And Halt A Program

    to Run and Halt A Program Here is how to run and halt Series 1500 programs. 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. How to Halt a Program To stop the program, press RUN/HALT.

  • Page 61: Data Communications

    Data Communications, Commands and Syntax In this section you’ll learn the Series 1500 data communications. See Figure 14 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 you with a foundation for a sophisticated communications system based on your system needs and your soft- ware development.

  • Page 62: Command Rules & Words

    Command Rules The following listing shows the command and the typical Series 1500's response string. The labels beneath each parameter in command or response string your computer screen. A command word with a question mark is a direct request for a response, a query. The__' s in the pages that follow are the number of character positions in a parameter available for entry or response.

  • 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. Requests actual process inputs. ACT? MTR? Requests information on the current step. ST?? Requests programmed information for a step. Enter step information.
  • Page 64 Command Words and Syntax Here is of the command words with the syntax. list Guarded in the Access and General Parameters Charts manual. J NOTE: Decimal points in general are not available for the Series 1500 T/C version. See the charts on pp.
  • 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?
  • Page 66 Walt STP? Step- *=Unprogrammed parameter 0 0 0 3 ---.- 3200 Step Wait For Wait_ Ch-2 T y p e . C h - 1 Sample Response: 0003 1234 0840 0001 **** 0015 0010 0030 Program a step. The first parameter entered after the step number is the Step Type.
  • Page 67 Technical Reference Jump Loop Step - STP Sample Transmission: STPl202100004 Wait Step - STP = Unprogrammed parameter 999.9 -99.9 999.9 — — — . — — — Step C h - 1 set S t e p Point Type Sample Transmission: STP 14 03 2100 0900 1*08 30 00 PTR? Requests real time of day, and upper and lower set point limits.
  • Page 68 TIM? Requests real time of day only Sample Response 12 34 56 Enter real time of day only Sample Transmission: TIM 23 59 59 LIM? Requests upper and lower set point limits — — — . — — — — . — --- - Ch-1 Lower Limit...
  • Page 69 Technical Reference RCY? Request the Recycle option Recycl e Sample Response: Enter the Recycle option Sample Transmission: RCY O1 GAI? Single PID: — — — — — — . — — — — . — — — — — — M--B- -d-m Reset...
  • Page 70 GA2? Sample Response: 00480012003400030029 00210012 Dual PID: -dee ---v ~~*~~ we-- Prop. Reset Rate Rate Band Heat Heat Sample Response: 0048 0012 0034 0003 0029 0021 0012 0058 0021 0043 0000 0020 Single PID: - - - - - - - - ---w v-.-- --*--...
  • 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 16 is the largest possible integer to subtract out, leaving a remainder of 2.
  • Page 72 Request values for PDA? C-1 Upper Ch-1 Lower Ch-1 Upper Process Process Deviation Sample Response: 0999 -099 0555 -555 0101-001 0999 -099 0999 -999 Enter — — — — — — — — — — — — C-1 Upper Ch-1 Lower Lower Ch-1 Upper Process...

  • Page 73: Data Communication Error Codes

    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-hand columns below. Parity error Framing error Over run error...

  • Page 74: Bad Sensor

    Bad Sensor Bad Sensor Indication and Troubleshooting Indication When a bad (open or shorted) sensor occurs for Ch-1 or Ch-2, the ACTUAL display will show "- - - - ". The Series 1500 control outputs in both channels de-energize when a bad sensor occurs. The events outputs remain energized. Bad sensor on Ch-1 will produce alarm codes A2 and A4.

  • Page 75: Field Calibration Procedure

    Technical Reference Field Calibration Procedure — RTD Calibration — The Series 1500 is shipped totally calibrated from the factory; it does not need field calibration, and will not except in unusual circumstances. This calibration procedure will enable you to calibrate the Series 1500 low voltage analog input and output signals for accuracy.
  • Page 76 Field Calibration Calibrate Channel 1 F Output 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 Set Ch-1 input to (294.91) [291.56] ohms and adjust Ch-1 SC-Hi pot for 4.950VDC.

  • Page 77: Thermocouple Calibration

    Technical Reference Field Calibration Procedure — Thermocouple Calibration — The Series 1500 is shipped totally calibrated from the factory; it does not need field calibration, and will not except in unusual circumstances. This calibration procedure Equipment Needed 1. One Millivolt Source (two if doing both channels simutaneously). 2.
  • Page 78 Field Calibration Calibration NOTE: 1. Document DIP Switch settings and values in Guarded Access, pages 54 & 56. The following procedure applies 2. Set Series 1500 DIP Switches 3 & 6 ON, all others OFF. to all three T/C types, although 3.
  • Page 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 (terminal 4 for CH-2). Turn power back 12.

  • Page 80: Specifications

    Specifications General Features 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 parameters. Membrane faceplate. User-friendly, 1/2 DIN plug in chassis. •...
  • Page 81 Technical Reference Temperature ranges: 999.9 -100 -99.9 1400°F 999.9 K t/c: -100 to 2500°F or 260 to 1760°C R t/c: 500 to 3200°F or _-99.9 to 537.7% RTD. -99.9 to 9999°F ungrounded. T/C inputs must be %RH ranges (on channel #2 only) and user selectable. Range limits are 0.0 to 100.0% RH Input types: upon Channel #1 RTD RTD: % RH...
  • Page 82 Series 1500 Standard = Two RTDs 1 & ChanneIs 2 Control Outputs Auxilliary Outputs/lnputs None Communications = None = Electrically Isolated RS422/423 Modifications Analog Restransmit of Channel 2 Input Signal (Available with Dual RTD Input, Only) 1500 User's Manual WATLOW Series Battery-backed real time clock One RTD &One 0-5VDC Two J t/c...

  • Page 83: Technical Service

    Technical Reference Technical Service If Something Goes Wrong The Series designed for long life and durable service. If, 1500 is a thing should go wrong, call Watlow neer. We’ll help you with the problem right on the phone. Warranty Information The Watlow Series 1500 is warranted to be free of defects in material and workman- ship for 18 months after delivery to the first purchaser for use, providing that the unit...

  • Page 84: Shipping Claims

    Watlow Winona, Inc. Watlow Winona, Inc. is a division of Watlow Electric Manufacturing Company of St. Louis, Missouri. Watlow is an established manufacturer of industrial electric heating 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.

  • Page 85: Auxiliary Outputs

    Glossary This glossary includes general thermal system control terms; not all are used with the Series 1500. Displayed information which gives the operator/programmer real or “actual” Actual display data: data, i.e., actual time of day, actual process temperature, or actual process relative humidity, etc.
  • Page 86 Derivative: Same as “rate.” Anticipatory action that senses the rate of change of temperature, and compensates to minimize overshoot. Deviation: The difference between the value of the controlled variable and the value at which it is being controlled. Dual In-line Package (ON/OFF) switch. DIP switch: Display capability: In a digital indicating instrument, the entire span that can be indiiated if fully...
  • Page 87 Overshoot : P control Parameter: PD control: PI control: control: Process variable: Programmed display data: Proportional band: ProfiIing: Program Step: Ramping: Range: Rate: Rate Band: Recycle: Reference junction: Remote - Hold: Reset: wind-up Reset Inhibit: Glossary, Appendix temperature exceeds set point due Condition whereby process changes.
  • Page 88 Restart: To begin to control a thermal system again, after stopping control and holding the process variable at a fixed value. A “restart” may occur with newly- programmed information in microprocessor-based controls. Resistance Temperature Detector. Resistive sensing device displaying linear RTD: resistance versus temperature characteristics.

  • Page 89: Noise

    Alarms, 49 Alarm Codes, 50 Almost Ready to Run, 22 Analog Retransmit, 52 Before You Begin (Programming), 18 Bad Sensor, 74 Change Data Flow Diagram, Fig. 20,42 CHG DATA Overview, Fig. 8,14 Change Parameter Flow Diagram, Fig. 21,46 CHG PARA Overview, Fig. 9,15 Cycle Time, 48 Data Comm.
  • Page 90 Series 1500 Quick Reference How to Get Around in the Selects MNTR DATA, Series 1500 Software CHG DATA or CHG MODE PARA Mode. Selects any prompt in a mode. FCTN Selects values for the DATA display. Places values from the DATA display into memory. ENTER ENTER ENTER...

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