Exclusion Jumper Disagreement; Oven Temperature Is Greater Than T-Rating; Reasonableness - ABB PGC2000 Operation And Service Manual

Exclusion Jumper Disagreement

Symptom: The temperature board has shut down and all the LED's are off. The zone temperatures
are reducing and will approach ambient.
Any one of the following alarm messages or conditions could be present:
On Background Screen
On Manual Temperature
Control Mode Screen
On Alarm Screen
Failure: Zones not used for temperature control are excluded to prevent operation. They are also set
INACTive in the software.
Cause: The exclusion jumper is not set up correctly.
Remedy: Select correct exclusion jumper configuration. If in doubt contact ABB Service Department.

Oven Temperature is Greater Than T-Rating

Symptom: The temperature board has been shut down. If the trouble is in Micro #1 then all LED's
are Off on the Temperature Control board and the zone temperature is greater than the T-Rating. If
trouble is in Micro #2, then the top LED is ON and the actual temperature is greater than the T-
Rating.
Any one of the following alarm messages or conditions could be present:
On Background Screen
On Manual Temperature
Control Mode Screen
Alarm Screen
Cause: The T-rating defines the maximum surface temperature allowed to prevent the ignition of the
flammable liquids and gases. The over-temperature limit prevents the temperatures from reaching
the T-rating limit. The over-temp must be less than the T-rating limit to prevent the temperature from
reaching the T-rating ignition temperature.
Remedy: Reconfigure T-Rating or upper limit to correct setting. To modify the temperature
configuration table, refer to "DIGITAL TEMPERATURE CONTROLLER" in Section 4. Perform Test
Procedure 30 (Checking Temperature Table Values).

Reasonableness

Symptom: Alarm Condition.
6-16
***ALARM:*** (flashing)
*Temp Bd Alarm* (flashing)
Temperature Board:
*T-Rating Disagreement
*Analysis Shutdown
possible Zone specific
*Reasonableness Test
***ALARM:*** (flashing)
Zone (#) (flashing)
*Temp Bd Alarm* (flashing)
Temperature Board:
*Zone Specific
*** TEMP ZONE (#) Alarm ***
*Overtemp
*High Temp
2000-OSM, F1