Temperature Board - ABB PGC2000 Operation And Service Manual

* Set Point Failed—activates when Zone is inactive; zone is SWITCH zone and switch not depressed
or set point is greater than the configured pressure range.
* Ramp Rate Failed—activates when the ramp rate settings exceed an acceptable range.
* Reconfiguration Failed—activates when switch not depressed.
* High Alarm—activates when the maximum pressure limit set in configuration is too low.
* Low Alarm—activates when the minimum pressure limit set in configuration is too high.
If either of the next two alarms occurs, information can be displayed and/or the
analysis can be aborted, per the Pressure Check Table option selections.
* Pressure Check Table
* Entry 01, DILUTER > 600 psig (example)

Temperature Board

When "Temperature Board:" appears as the main alarm, one or more temperature alarms appears
below the main alarm. Temperature alarms are of two types, overall alarms and zone-specific
alarms, with the zone-specific alarms subordinate to the overall alarms. Typical overall temperature
alarms and their descriptions are:
* ROM Checksum—activates when the DTC Backplane PCB has failed.
* No Zero Crossing—activates when there is loss of four or more consecutive AC line cycles.
* Zone Specific—activates when one of the zone specific alarms is activated.
* Loss of Air—activates when there is temporary loss of air to Zones 1 and 2 heaters. The analysis
cycle aborts. When this alarm occurs, power will be removed from the heaters of air-operated zones
for as long as the loss of air exists. When air pressure is restored, power is restored to the heaters.
If one of the following alarms occurs, the analyzer will stop and power will be
removed from all heaters. To resume operation, you must turn power OFF and
back ON, and then restart the analysis.
* Overtemp Test—activates when the overtemp micro fails. It may signify a zone triac failure.
* Communications—activates when communications between the SBC PCB and the DTC Backplane
PCB have failed.
* Overtemp Triac—activates when Micro 1 control triac fails during overtemperature test.
* Ambient Limit Exceeded—activates when the internal ambient temperature of 80° C is exceeded.
* Heater Barrel TC Faulty—activates when the heater barrel thermocouple is faulty.
* T-Rating Disagreement—activates when Micro 1 and Micro 2 T-Rating jumpers do not agree.
2000-OSM, F1
NOTE
NOTE
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