Page 2 - Starting Out; This manua/ will make; your; Notes; boldface; Your Feedback
How to Use the Manual First.. Starting Out Install/Wire Front Panel Set Up Tuning Appendix N O T E : Details of a *‘Note** appear here, in the narrow box on the outside of each page. C A U T I O N : Details of a “Caution” appear here, in the narrow box on the outside of each page. WARNING: Details o...
Page 4 - Chapter; Input; and; Overview; Starting Out With The; A Microprocessor-Based Control; Output; General Description
Chapter 1 Flgure 1 -Series 980/985 Input and Output Overview Starting Out With The Watlow Series 9801985, A Microprocessor-Based Control Single Input - Type J, K, T, N or Pt2 Dual Outputs-PID or ON/OFFUser Selectable Heat, Cool or Alarm Output 1 or 2 Percent Power Output 1, Heating Auto-tuning Gener...
Page 5 - Putting Your Control To Work; Setup; Calibration procedures; Where To Go From Here
Putting Your Control To Work To put your Series 980/985 to work, we suggest the following steps: Read the User’s Manual. Plan your installation and wiring. Cut the panel mounting hole and install the control. Wire your Series 980/985 to the system.Start the system and tune the Series 980/985. Make f...
Page 6 - System Planning; to install when you receive it.; Sensor Installation Guidelines; interference which may result in error codes in the Series 980/985.; The Culprit; An outstanding resource
Chapter 2 How to Install and Wire the Series 9801985 System Planning This chapter tells you how to install the Series 980/985. All mounting and wiring information is right here. Because Watlow controls are thoroughlytested and "burned in" before leaving the factory, the Series 980/985 is rea...
Page 7 - Noise Sources; All welding machinery.; How To Decrease Noise Sensitivity; signal source to the control circuit.
Noise Sources Switches and relay contacts operating inductive loads such as motor, coils, solenoids, and relays, etc.Thyristors or other semiconductor devices which are not zero crossover-fired (randomly-fired or phase angle-fired devices). All welding machinery. Heavy current carrying conductors.Fl...
Page 8 - never used as a conductor to return circuit current; How To Eliminate Noise; to effectively dampen noise at its source.
• Ground loops must be eliminated in the entire control system. There are obvious loops which can be spotted by studying the"as-built" wiring diagram. There are also the not-so-obvious ground loops that result from the technique of connecting internal circuit commons in the manufacturer's eq...
Page 10 - Line Filtering Configurations For Controls; microcomputer-regulated power supply or Uninterruptable; Minimize; common; Control
Line Filtering Configurations For Controls F i g u r e 3 - These three diagrams show you filter configurations for removing input power noise. Choose the one best suited for your system. For very dirty or criticalapplications - use a microcomputer-regulated power supply or Uninterruptable Power Supp...
Page 12 - Dimensions
Figure 6 -Series 980/985Panel Cutout Dimensions Panel Cutout Max. Panel Thickness 0.50 (12.7mm) 3.82 +0.03 - 0.00 (92mm + 0.8) Load Power indicators Panel .89 (48.0 mm Figure 7 -Series 980/985Dimensions 12 WATLOW Series 9801985 User’s Manual ‘Install and Wire, Chapter 2
Page 14 - Flgure; These input connections; Input Options “2’ & “3”, Process or Remote Set Point Input; as; the Series 980/985 is now displayed as a direct reading of pressure.
Figure 10 - Input Options “1”,**2* & *3’, Thermo-couple Wiring D i a g r a m . Flgure 11 - Input Options "2" & "3" Process InputWlring Diagram. NOTE: When using a 4- 2OmA processInput, the inputimpedance is2 4 9 o h m s lnput Options “1 “, “2” & “3”, Thermocouple Input Te...
Page 16 - State
Output 1 Option “B”, Solid State Relay Figure 14 - Solid State Relay,Output 1, Option “B”Wiring Diagram. Figure 15 -DC Output 1 (OpenCollector), Option72” Wiring Diagram. ModeI# 98_A-_ B _0-0000 Solid State Relay Solid State Relay Watlow's solid state relays change state at zero volts, which is *zer...
Page 17 - Output 1 Option “D”, 6 Amp Mechanical Relay; Mechanical Relay; state impedance is 2 O K o h m minimum.; Amp mechanical
Output 1 Option “D”, 6 Amp Mechanical Relay Model#98_A-_D _0-0000 Mechanical Relay Mechanical Relay The Electromechanical relay iS an electrical and mechanical with moving parts. When power is applied to the relay solenoid, Contact closure is Created through move-ment of the “Common” Contact of the ...
Page 19 - Output 2 Option “B”, Solid State Relay
Output 1 Option “H”, O-5VDC Model# 98_A-_H _0-0000 Process OutputProportional value determined by the control to balance the sensor input and set point. This value will fall between O-5VDC dependlng on your process output type. Output 2 Option “B”, Solid State Relay Model# 98_A- B 0-0000 - - Solid S...
Page 20 - Output 2 Option “D”, 6 Amp Mechanical Relay
Figure 22 - DC Output (Open Collector), output 2Option "C" Wiring Diagram. Figure 23 - 6 Amp Mechanical Relay, Output 2, Option "D"Wiring Diagram. Output 2 Option “C", DC Output (Open Collector) Model# 98_A- C 0-0000 __ 9 - 8 Heat, Cool + or Alarm Switched DCWatlow’s solid state ...
Page 21 - See Noise Guidelines at the beginning of this chapter.; Example
WARNING: Install high or low temperature limit control protection in systems where anovertemperature fault condition could present a fire hazard or other hazard.Failure to install temperature limit control protection where a potential hazard exists could result in damage to equipment and property, a...
Page 22 - Chapter 3; without key; Displays; How to Use the Keys and Displays; Upper Display; digit display indicating either process actual tem-; Lower Display; gized or the alarm is
Chapter 3 NOTE: The Upper displaywill always showthe process valueafter 1 minute without key strokes. Figure 25 -Series 980/985 Displays How to Use the Keys and Displays Series 980/985 Displays and Load LED’s Upper Display Red, 0.3” high LED, seven segment, three or four digit display indicating eit...
Page 23 - MODE Key; down; DOWN Key; Where To Go From -Here
Series 980/985 Keys Figure 27 - Series 9 8 0 / 9 8 5 Keys UP/DOWN keys MODE Key When pressed simultaneously for 3 sec- Steps the control through the onds, the Setup Menu appears displaying Operating menu; also, in the the LOC parameter. From the LOC pa- Auto mode, enters new data rameter, press the ...
Page 24 - Entering the Setup Menu
Chapter 4 NOTE: While in the Setup menu, all outputs are OFF. Figure 27 -Entering the SetupMenu. Figure 28 - The Setup Menu. NOTE: When using a process input such as O-5VDC or4-2OmA, the r L and rH settings scale the display to match the measured range of the process signal. How To Setup The Series ...
Page 25 - S e t u p P a r a m e t e r s
S e t u p P a r a m e t e r s At the top of the menu, the Series 980/985 displays the user level of operation in the Upper display, and the LOC parameter in the Lower display. When pressing the MODE key, the value of the next parameter appears in the Upperdisplay, and the parameter itself is in the ...
Page 26 - output; Parameters; Value
Latching: Selects whether the output is latching or non-latching when Output 2 is an alarm. Latching alarms must be cleared before the alarm output will reset. Non-latching automatically resets the alarm output when the condition clears. The range is LAt or nLA, default is nLA. This only appears if ...
Page 27 - The; Upper display; Operation Parameters
Mode Key Control Set Point NOTE: The Upper display will always show the process value after 1 minute without key strokes. = Prompt appears or not according to control configuration. . Operation Parameters Set Point 2: Sets the operating set point for Output 2 when control mode is Ht/ Ht or CL/CL. SP...
Page 28 - db
Chart 3 -Operation Menu Prompts andDescriptions. Dead Band: Enter the Dead Band between the heating and cooling functions adjustable from ± 99°F/± 5 5 ° C . The default is 0°. Appears when Ot2 = CL. Alarm Low: Represents the low process alarm or low deviation alarm. Displayed only when 0t2 parameter...
Page 29 - the heat
Chapter 5 How to Tune and Operate Tuning - Automatic Auto-tuning: The Series 9801985 gives you the capability to automatically tune the PlD parameters to fit the characteristics of your particular thermal system. The auto-tuning procedure operates on a thermal response value - slow, medium, or fast....
Page 30 - Apply power to the Series 965; Calibration Offset Adjustment: You; Manual and Automatic Operation
Tuning - Manual For optimum control performance, tune the Series 985 to the thermal system The tuning settings here are meant for a broad spectrum of applications; your system may have somewhat different requirements. 1. 2. 3. 4. 5. 6. Apply power to the Series 965 and enter a set point. Begin with ...
Page 31 - Using Alarms; Process alarm
Indication of Auto/Manual operation is the LED located on the AUTO/MAN key. When the LED is ON, the control is in the Manual operation, an alarm condition is present, and the output de-energizes. When the LED is OFF, the control is inAUTO operation and the alarm is energized. When the LED flashes, p...
Page 32 - How To Deal With Error Codes
Press ~ twice- Read error Figure 32 -Error Code Display Examples NOTE: Electrical noise or anoise event, vibra- tion or excessenvironmental moisture or tem-perature may causeSeries 985 errors to occur. If the cause of an error is nototherwise apparent,check for these. •If the alarm is non-latching.....
Page 33 - Er 4 & 5 Errors - Control Outputs Will Be OFF; Error codes Er 4 and Er 5 will result in these conditions:
Er 1, 2 , 3 & 7 Errors - Control Outputs May Be ON If operator access is LOC 0 or 1 . . . . ..and the control was in AUTO operation when the error occurred, it will go into MANUAL (% power) operation. If the output power is less than70%±5% change within the last two minutes, the 985 will switch ...
Page 34 - Appendix; Control M o d e; Outputs independent, or related via deadband for Heat/Cool.; Operator Interface; Membrane front panel.; selectable bumpless transfer to manual operation.
Appendix Control M o d e • Single set point, non-ramping. l Single input, dual outputs. l Control outputs: User selectable as: Heat, Heat/Heat, Heat/Cool, Cool,Cool/Cool, Heat/Alarm, Cool/Alarm l Outputs independent, or related via deadband for Heat/Cool. l ON/OFF: 3 ° F or 1 . 7 ° C switching hyste...
Page 37 - restored. Figure 34 on the next pages shows the calibration prompt.; Incorrect calibration
Calibration Menu In the Calibration Menu, various input signals must be supplied in order for the control to go through its auto calibration. The calibration menu can only beentered from the LOC parameter in the Setup menu. Press the UP/DOWNkeys simultaneously for 3 seconds 1 second). The CAL parame...
Page 38 - Thermocouple Field Calibration Procedure; Equipment Required; After
Figure 34 - The Calibration Menu. N O T E Before calibration on an installedcontrol, make sure all data and parameters aredocumented. See Setup and Operation Charts, Pages 26 and 28. NOTE: Not all parameters will appear. Theyare dependent onyour unit type. Use only the steps that apply to your unit....
Page 39 - RTD Field Calibration Procedure; Before calibration on an installed control, make sure a l l data and; Not all parameters; rHI
RTD Field Calibration Procedure Equipment Required l 1K ohm precision decade resistance box with 0.01 ohms resolution. Setup And Calibration NOTE Before calibration on an installed control, make sure a l l data and parameters are documented. See Setup and Operation Charts, Pages 26 and 28. 1. Connec...
Page 40 - - 5 Volt Field Calibration Procedure; NOTE
NOTE: Not all parameters will appear. They are dependent onyour unit type. Useonly the steps thatapply to your unit. 0 - 5 Volt Field Calibration Procedure Equipment Required l Precision voltage source 0 - 5 volt minimum range with 0.001 volt resolution. Setup And Calibration NOTE 1. 2. 3. Before ca...
Page 41 - -20mA Input Field Calibration Procedure; Not; all parameters; only the steps that; source to; source
4-20mA Input Field Calibration Procedure Equipment Required l Precision current source 0-20mA minimum range with 0.01 mA resolution. Setup And Calibration NOTE NOTE: Not all parameters will appear. Theyare dependent on Before calibration on an installed control, make sure all data and your unit type...
Page 43 - are dependent on; Before calibration on an installed control, make sure all data and
0-5/0-10 Volt Output Field Calibration Procedure Equipment Required l 20K ohm, 1/4 watt, 10% resistor l 4 - 1/2 digit Digital Multimeter. Setup And Calibration NOTE NOTE: Not all parameters will appear. They are dependent on your unit type. Use only the steps that apply to your unit. 1. 2. 3. Before...
Page 46 - Thermocouple Calibration, 38
A Appendix , 34 AUTO/MAN key, 23 Automatic Operation, 23,31Auto-tuning, 30 K, LKeys, 23, Fig. 27 Line Filtering Configurations, 10 Local-Remote Set Point, 25,28 ’ BBumpless transfer, 31 Lower Display, 22, Fig. 25 C Calibration, 38Combination Differential Filter, 10, Fig. 5 Common Mode Fitter Wiring,...
