9
3. SET UP
3.1 Deleting recorded exceedance (MIN / MAX):
- pressing buttons (8)‘▼’ and (9)‘▲’ for about 2-3sec results in deleting saved min/
max temperatures and saving current temperature in the driver’s memory
4. Defrostation
Defrostation is turned on automatically every 8 hours (C0 parameter). Maximum
length of defrostation is 30 minutes (C1 parameter).
Cooler compressor is turned off during defrostation.
Defrostation is nished also when the temperature of the evaporator is higher than
+4
o
C.
If the evaporator temperature sensor is damaged, temperature-conditioned defrosta-
tion completion will not occur.
Defrostation occurs also when the cooler sensor is damaged and the compressor
works using emergency mode in the c6/c7 time cycle.
5. ALARM CONDITION / REMOTE ALARM
On PE 507 and PG 507 models the cabinet alarm can be connected to a remote
control station via two 4mm jack-plugs on the rear of the control panel.
Note! The power source for this circuit must be external to the cabinet and MUST
NOT EXCEED 50 V AC/DC. This must be installed by a competent electrician.
In normal conditions (no alarm) the AUX relay OPENS the contact for the remote
alarm facility.
When there is alarm condition (Hi/Lo temperature, E1, E2, probe failure), the AUX
relay CLOSES the contact.
In alarm condition (excluding power failure), pressing any button for 1 second causes
the alarm display to be cancelled, the buzzer to be muted and the AUX relay to open
the contact.
After the alarm has been silenced, if the alarm ends , all indications are erased.
6. Alarms
A displayed alarm should be saved even if the cause of the alarm does not exist any-
more (except the open door alarm).
Alarms are not saved after switching off (lack) of power.
E1 – cooler sensor malfunction – if the reason of the alarm still exists, it can not be
deleted,
E2 – evaporator sensor malfunction – if the reason of the alarm still exists, it can not
be deleted.
GB/IE
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