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machine will stop. Signaling should be indicated since the first failure occurs. If the second retry
attempt is ok, the signaling will switch off.
In case that a machine stop has been caused by alarm, the reset is done by switching OFF and
ON the main switch. If the dip-switch 11 OFF, time alarms are not to be followed.
4.2.1 SAFETY HIGH PRESSURE SWITCH
When the pressure contact (P) trips, instantly, all outputs switch over to off position.
When it is closed again, there are two possibilities:
- Dip-switch 10 OFF. Manual reset. The machine remains stopped until reset to Initial start-up.
- Dip-switch 10 ON. Automatic reset. The machine check pressure switch status every 30 min.
When closed, the machine will continue at the position where it was.
* Signalling: Flashing LE1.
4.
2.2 LONG HARVEST
If the harvest time is longer than 5 min., the harvest is interrupted, switching over to the
production cycle. If the same happens again at the next harvest, the machine will stop.
* Signalling: Flashing in LE3
.
4.2.3 ICE PRODUCTION CYCLE TIMEOUT
If during the production cycle, evaporator temperature probe has not reached the set
temperature Tc in more than 60 min, the machine will stop until reset.
* Signalling: Flashing in LE2.
4.2.4 FAULTY TEMPERATURE PROBE
If PCB detects that evaporator temperature probe is broken or unconnected, the machine will
stop
* Signalling: Flashing in LE4.
Probe type is NTC and resistance value must be
10kΩ at 25°C.
4.3 PCB PUSH BUTTON FUNCTION
Function depends on the unit status:
- Start up timer: Finish initial delay y passes to ice production stage
- Ice production. Switches to harvest
- Harvest. Switches to Ice production
Wash cycle activation.
