ABB PGC2000 Operation And Service Manual page 208

* Analysis Shutdown—activates when the Temperature Board alarm has signaled the SBC with
information that will be used to determine whether to abort the analysis.
If the "*Zone Specific" subordinate alarm appears, at least two additional lines appear below that.
The first line identifies which zone produced the alarm and the second line identifies the specific
alarm condition. Typical zone specific alarms and their descriptions are:
* Reasonableness Test—activates when probe and thermocouple disagree by more than 100° C.
* Triac Failure—activates when a control triac misfires consistently.
* Zone Checksum—activates when there is a EEPROM problem.
* Out of Control—activates when the ramp rate settings exceed an acceptable range or the analyzer
is unable to maintain set point.
* Zero Failed—activates when Zero resistance is not 400 ohms, or the switch is not depressed (Zero
is not required in the field).
* Span Failed—activates when Span resistance is not 1000 ohms, or the switch is not depressed
(Span is not required in the field).
* Set Point Failed—activates when Zone is inactive; zone is SWITCH zone and switch not depressed
or set point is greater than T-Rating.
* Ramp Rate Failed—activates when the ramp rate settings exceed an acceptable range (50° C per
minute).
* Reconfiguration Failed—activates when switch not depressed.
* High Alarm—activates when the maximum temperature limit set in configuration is too low.
* Low Alarm—activates when the minimum temperature 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.
* Temperature Check Table
* Entry 02, PROG OVEN > 320 deg C (example)
If one of the following alarms occurs, the analyzer will stop and power will be
removed from all heaters. To resume system operation, turn the power OFF and
back ON, and then restart the analysis.
* Overtemp—activates when the zone temperature has exceeded the displayed T-rating.
* Probe Open/Shorted or TC Faulty—activates when there is a defect in the zone sensor or
interconnect.
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NOTE
NOTE
2000-OSM, F1