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24 - 0911
english
ACKNOWEDGING ERRORS VIA THE KEYBOARD
Press any button.
The Alarm message remains on the display as long as the alarm conditions
are present. The device then switches to normal operation.
AUTOMATIC ACKNOWLEDGEMENT OF THE ERROR
•
Message
PFo and PFc - Room sensor error
After approx. 30 seconds or once the error has been cleared, the
message will be acknowledged automatically. Check the connections
before any replacement of the sensor.
•
Messages
HA/LA
- High/Low temperature alarm
The messages disappear automatically as soon as the normal temperature
range is reached again or if defrosting starts.
•
External alarms EAL and BAL are acknowledged after deactivation of the
digital input.
STATUS OF THE ALARM RELAY
Device status
AS = CL
AS = OP
Device without power
5 - 6 closed
5 - 6 closed
Normal operation
5 - 6 closed
5 - 6 open
Alarm situation during
operation
5 - 6 open
5 - 6 closed
8
REPAIR WORK
8.1
Faults
ERROR MESSAGES
Message
Cause
Effect
PFo
Sensor defective or not
connected
Alarm relay ON; control circuit
according to
So1
PFc
Sensor short-circuit
Alarm relay ON; control circuit
according to
HA
High temperature alarm
Alarm relay ON; outputs remain
unchanged
LA
Low temperature alarm
Alarm relay ON; outputs remain
unchanged
EAL
Digital input alarm
Outputs remain unchanged
BAL
Содержание 0911
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