Watlow CLS200 - Manual (Page 7)

CLS200 Series User’s Guide Table of Contents
Doc.# 0600-3050-2000 Watlow Anafaze vii
Last Segment 144
Repeat Cycles 144
Setpoints and Tolerances for Various Input Types 144
Using Ramp/Soak 145
Ramp/Soak Displays 146
Assigning a Profile to a Loop 148
Running a Profile 148
Holding a Profile or Continuing from Hold 150
Responding to a Tolerance Alarm 151
Resetting a Profile 151
In Case of a Power Failure 152
8 Tuning and Control 153
Control Algorithms 153
On/Off Control 154
Proportional Control 154
Proportional and Integral Control 155
Proportional, Integral and Derivative Control 155
Heat and Cool Outputs 156
Control Outputs 157
Output Control Signals 157
Output Filter 158
Reverse and Direct Action 159
Setting Up and Tuning PID Loops 159
Proportional Band (PB) Settings 159
Integral Settings 160
Derivative Settings 160
General PID Constants by Application 161
Proportional Band Only (P) 161
Proportional with Integral (PI) 161
PI with Derivative (PID) 161
9 Troubleshooting and Reconfiguring 163
When There is a Problem 163
Returning Your Unit 164
Troubleshooting Controllers 164
Process and Deviation Alarms 164
Failed Sensor Alarms 166
System Alarms 166
Other Behaviors 167
Corrective and Diagnostic Procedures 168
Low Power 168
Battery Dead 168
Ambient Warning 168
H/W Ambient Failure 169
H/W Gain or Offset Failure 170
Keys Do Not Respond 170
Checking Analog Inputs 171
Earth Grounding 172
Checking Control Outputs 172
Testing Control Output Devices 173