Main
Series 988
1/8 DIN Microprocessor-Based Temperature/Process Controller
ISO 9001
Users Manual
Includes 986, 987, 988 and 989
Table of Contents
Introduction to the Watlow Series 988 Controllers
Introduction
Using this Manual
Document Every Step
Introduction
Notes, Cautions and Warnings
Technical Assistance
We Value Your Feedback
Chapter 1 Hardware Setup
DIP Switch Locations and Functions
Page
Page
1.4
[InPt]
[OtPt]
M
[PLOC]
[diAG]
Chapter 2 Installation and Wiring
Installation
Installing the Series 988
Page
Wiring
Wiring the Series 988
Input-to-output Isolation
Power Wiring
Wiring
Sensor Installation Guidelines
2.6
Wiring Example
Wiring Notes
L1 L2
2.8
Input 1 Wiring
Input impedance: 10K
Figure 2.8c 0-5V, 1-5Vor 0-10V(dc) Process
Figure 2.8a Thermocouple or 0-50mV (high impedance)
98 _ _ - 1_ _ _ - _ _ _ _ (no DIP switches)
Input 2 Wiring
Figure 2.9a Thermocouple or 0-50mV (high impedance)
98 _ _ - _ 1_ _ - _ _ _ _ (no DIP switches)
Input impedance: 20M19
Figure 2.10b Current Transformer Input 98 _ _ - _ 4_ _ - _ _ _ _
Input 2 Wiring
Figure 2.10a Slidewire Feedback or Potentiometer Input 98 _ _ - _ 3_ _ - _ _ _ _
Event Input 1 Wiring
Figure 2.10c Digital Event Input 2 98 _ _ - _ 5_ _ - _ _ _ _
Figure 2.11a Digital Event Input 1 Available on all units.
2.12
Figure 2.12a AC Outputs
Output 1 Wiring
Figure 2.12b Switched DC, Open Collector 98 _ _ - _ _ C_ - _ _ _ _
Figure 2.12d 0-5V, 1-5Vand 0-10V(dc) Process 98 _ _ - _ _ F_ - _ _ _ _
Figure 2.12c 0-20mA and 4-20mA Process 98 _ _ - _ _ F_ - _ _ _ _
Output 2 Wiring
Figure 2.13b Switched DC, Open Collector 98 _ _ - _ _ _ C- _ _ _ _
Figure 2.13d 0-5V, 1-5Vand 0-10V(dc) Process 98 _ _ - _ _ _ F- _ _ _ _
Figure 2.13c 0-20mA and 4-20mA Process 98 _ _ - _ _ _ F- _ _ _ _
Figure 2.13e External Signal Conditioner Power Supply 98 _ _ - _ _ _ T - _ _ _ _
Output 3 Wiring
Figure 2.15b Switched DC, Open Collector 98 _ _ - _ _ _ _- _ C_ _
Figure 2.15a AC Outputs
98 _ _ - _ _ _ _ - _ B_ _
98 _ _ - _ _ _ _ - _ D_ _ _
Output 4 Wiring
Figure 2.15c External Signal Conditioner Power Supply 98 _ _ - _ _ _ _- _ T_ _
, Product Techical Information - Controls.
www.watlow.com
For data communications wiring refer to
Chapter 3 Front Panel and Display Loop
Keys and Displays
TL
W W A
3.2
Display Loop
Display Loop
Navigating the Setup Menus
Chapter 4 The Setup Menus
4.2
from the controller's
Reaching the Input Menu
Slidewire (p. 4.16)
Input 2 (p. 4.9)
Input 1 (p. 4.3)
Select the Input Menu, then press the Mode key to step through the prompts.
[`In1]
Input 1
[`In1]
[dEC1]
Decimal 1
Range Low 1 and Range High 1
[`rL1] [`rH1]
[`rL1] [`rH1]
[`rL1] [`rH1]
[CAL1]
Calibration Offset 1
RTD (100) Calibration Curve 1
Software Filter 1
[rtd1]
[Ftr1]
Linearization 1
[Lin1]
Input 2
[`In2]
[`In2]
[`In2]
[`rSP]
Remote Set Point
Decimal 2
Range Low 2 and Range High 2
[`rL2] [`rH2]
[dEC2]
[`rL2] [`rH2]
4.12
[`rL2] [`rH2]
Learn Low
Learn High
[LrnL]
[LrnH]
[CAL2]
[rtd2]
Calibration Offset 2
RTD Calibration Curve 2
Software Filter 2
[Ftr2]
[Lin2]
[Hunt]
[SHYS]
4.18
C4.wc 5/14/1999 8:48 AM Page 4.18
Enter your settings, from the controller's upper display.
[```1]
Reaching the Output Menu
Figure 4.18 - Navigating the Output Menu.
*Prompts may not appear, depending on controller configuration.
Output Prompts
[`Ot1]
Output 1
Process 1
[HYS1]
[Prc1]
Hysteresis 1
Output 2
Process 2
[`Ot2]
[Prc2]
Hysteresis 2
Set Point 2 Control
[HYS2]
[SP2c]
Alarm 2
Alarm 2 Side
[`AL2]
[A2Sd]
Latching 2
Silencing 2
[LAt2]
[SIL2]
Output 3
Alarm 3
[`Ot3]
[`AL3]
Alarm 3 Side
Hysteresis 3
[A3Sd]
[HYS3]
Latching 3
Silencing 3
[LAt3]
[SIL3]
Output 4
Alarm 4
[`Ot4]
[`AL4]
Alarm 4 Side
[A4Sd]
Hysteresis 4
[LAt4]
[HYS4]
Latching 4
Silencing 4
Analog Output
[SIL4]
[Aout]
Process 3
[A`rL]
[Prc3]
Retransmit Low Limit
Retransmit High Limit
Retransmit Calibration Offset
[A`rH]
[ACAL]
Reaching the Global Menu
Global Prompts
Celsius-Fahrenheit
Failure Mode
[`C_F] [FAIL]
Error Latching
Control Type
[`Err]
[CntL]
Cascade Action
[CSAC]
Algorithm
PID 2 Crossover Selection
[ALGO]
[Pid2]
Crossover Process Value
Crossover Set Point Value
[Proc]
[StPt]
Event Input 1
Event Input 2
[`Ei1]
[`Ei2]
Annunciator
Low Power Limit
[Anun] [`LoP]
High Power Limit
Auto-tune Set Point
[`HiP]
[AtSP]
Ramping Function
Ramp Rate
[``rP]
[rAtE]
Reaching the Communications Menu
Communications Prompts
Baud Rate
Data Bits and Parity
[bAUd] [dAtA]
Protocol Type
Address
[Prot]
[Addr]
Interface Type
[IntF]
Navigating the Operation Menus
Chapter 5 The Operation Menus
Reaching the System Menu
5.2
from the controller's
Event Input (p. 5.4)
Alarms (p. 5.4)
[`SP2]
[IdSP]
Event Input 1 Status
Event Input 2 Status
Alarm 2 Low
[Ei1S] [Ei2S]
[A2LO]
Alarm 2 High
[A3LO]
[A2HI]
Alarm 3 Low
Alarm 3 High
Alarm 4 Low
[A3HI]
[A4LO]
Alarm 4 High
Auto-tune
[A4HI]
[`AUt]
Local-remote
[`L-r]
Reaching the PID Menus
C5.wc 5/14/1999 8:51 AM Page 5.9
Enter your settings, from the controller's upper display.
Output 2 (p. 5.13)
Operation Menus, Chapter 5
[Pb1A] [Pb1b]
Reset, Output 1A or 1B
Integral, Output 1A or 1B
[rE1A] [rE1b]
[It1A] [It1b]
Rate, Output 1A or 1B
Derivative, Output 1A or 1B
[rA1A] [rA1b] [dE1A] [dE1b]
Cycle Time, Output 1A or 1B
Proportional Band, Output 2A or 2B
[Ct1A] [Ct1b]
[Pb2A] [Pb2B]
Reset, Output 2A or 2B
Integral, Output 2A or 2B
[rE2A] [rE2b]
[It2A] [It2b]
Rate, Output 2
Derivative, Output 2A or 2B
[rA2A] [rA2b] [dE2A] [dE2b]
Cycle Time, Output 2A or 2B
Dead Band A or B
[Ct2A] [Ct2b]
[db`A] [db`b]
Navigating the Factory Menus
Chapter 6 The Factory Menus
6.2
from the controllers
[PLOC]
Select the Panel Lockout Menu, then press the Mode key to step
Reaching the Panel Lockout Menu
Panel Lockout Prompts
[`LOC]
Front Panel Lockout
System Menu
PID A Menu
PID B Menu
[PidA] [PidB]
[`SYS]
Input Menu
Output Menu
Global Menu
[Inpt]
[Otpt]
[GLBL]
Communications Menu
Diagnostics Menu
[diag]
[COM]
[`CAL]
Reaching the Diagnostics Menu
Use the Up-arrow >key to step from the Panel Lockout Menu [PLOC] to the Diagnostics Menu [diag].
?
Enter your settings, from the controller's
[Diag]
[DAte] [sOft] [Sn--]
[AMB]
Page
Outputs 1, 2, 3 and 4 Module Types
[Oty1] [Oty2] [Oty3] [Oty4]
Test Displays
Test Outputs
[disp]
[tout]
Factory-Diagnostic
[OPLP]
Open Loop
Reaching the Calibration Menu
Factory-Calibration
Restore
[`rst]
Default
Factory-Calibration
[`dfl]
Auto-tuning (Heat and/or Cool)
Chapter 7 Tuning, Manual Operation, Alarms and Error Codes
Tuning
Manual Tuning
Page
Auto/Man
Manual and Automatic Operation
Changing the Output 3 Alarm Jumper
Using Alarms
Page
Error Code E1 and E2 Messages
Error Code Actions
All of the above error codes except [`Er4], [`Er5] and [`Er9] will result in these conditions:
Error codes [`Er4], [`Er5] and [`Er9] will result in these conditions:
Chapter 8 General Software
Burst Fire
50% output
10% output
100% output
66% output
Communications
WATLOW Series 988 Users Manual 8.5
C8.wc 5/14/1999 8:55 AM Page 8.5
Test Chamber 1
output 4 personal computer with EIA/TIA-422 port
Test Chamber 2 Test
output 4output 4output 4output 4
Chamber 4 Test
Dead Band
()
Digital Events
Page
Heater Current
Page
Input Filter
Page
Input Linearization
WATLOW Series 988 Users Manual 8.15
C8.wc 5/14/1999 8:55 AM Page 8.15
input 1 output1
Water Trea tment Pond
flow transmitter
Figure 8.15b - Waste-water treat- ment with input lin- earization.
Figure 8.15a - Graph of linearized signal.
Ramp To Set Point
Page
Remote Set Point
WATLOW Series 988 Users Manual 8.19
C8.wc 5/14/1999 8:55 AM Page 8.19
zone 1 Master output 3
zone 2
Figure 8.19 - Zone heating with remote set point.
Retransmit
Page
Slidewire Feedback
Page
Appendix
A.2
Glossary, A - L
Glossary, M - Z
A.4
Specifications
Warranty/Returns
Warranty
Watlow Controls
Returns
Shipping Claims
Index a-h
A
B
C
D
Index h-r
I
J
K
L
Index r-z
C Appendix.wc 5/14/1999 8:33 AM Page A.8
A.8
S
T
Indexprompts
S
T, U, V, W, X, Y, Z
Factory
( )
Menu Overview
Model Number
Ordering Information
To order, complete the code number to the right with the information below: 9 8 _ _ - ____- ____
Power Supply & Mounting
Software
Declaration of Conformity
Series 986, 987, 988, 989
1241 Bundy Boulevard Winona, Minnesota 55987 USA
English
89/336/EEC Electromagnetic Compatibility Directive