User's Manual

6
Overvoltage Protection (OVP) Circuit............................................................................................................................ 49
Power-Limit Comparator................................................................................................................................................ 49
Control-Voltage Comparator ..........................................................................................................................................49
Initial-Ramp Circuit........................................................................................................................................................50
Pulse-Width Modulator (PWM) .....................................................................................................................................50
Bias Voltage Detector.....................................................................................................................................................50
AC-Surge Dropout Detector ........................................................................................................................................... 50
1-Second-Delay Circuit ..................................................................................................................................................51
Display Circuits .................................................................................................................................................................. 51
Replaceable Parts..................................................................................................................................................................53
Introduction.........................................................................................................................................................................53
Ordering Information.......................................................................................................................................................... 54
Component Location and Circuit Diagrams ...................................................................................................................... 69
System Option 002 ................................................................................................................................................................ 79
General Information............................................................................................................................................................79
Specifications..................................................................................................................................................................79
Option 002 Hardware...................................................................................................................................................... 79
Installation ..........................................................................................................................................................................83
Connector Assembly Procedure......................................................................................................................................83
Operation ............................................................................................................................................................................84
Local/Remote Programming...........................................................................................................................................85
Remote Resistance Programming...................................................................................................................................87
Remote Monitoring......................................................................................................................................................... 89
Status Indicators..............................................................................................................................................................90
Remote Control...............................................................................................................................................................90
Power-On Preset .................................................................................................................................................................92
AC Dropout Buffer Circuit .............................................................................................................................................93
Multiple Supply System Shutdown ................................................................................................................................93
Bias Supplies ..................................................................................................................................................................94
Maintenance........................................................................................................................................................................ 94
Troubleshooting..............................................................................................................................................................95
Troubleshooting Resistance and Voltage Programming.................................................................................................95
Troubleshooting Current Programming..........................................................................................................................95
Backdating........................................................................................................................................................................... 107