SERVICE MANUAL
24
LED signalling
By each out relay there is a red led. Signals relay on
By each input terminal there is a green leed marking input active.
There are four additional leds what signals machine status (continuous) or alarm (flashing)
LED
continuous
flashing
0
Stand by
Long harvest timeout
1
Ice
Long ice cycle timeout
2
Wash
Short ice cycle timeout
3
Fill bin
Water filling timeout
0-1-2-3
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Safety pressure switch
Dip switch setting
J1
Safety pressure switch reset
On - automatic
Off - manual
J2
Timeout alarms function
On - actives
Off - unactives
J4
Timeout water filling
On - 1h automatic reset
Off - manual reset
J5
Stacked machines configuration
On - Master unit (lower)
Off - Slave unit (upper)
5.3.- ALARMS
They detect operational malfunctions. They are indicated with the flashing status LEDs LE1-4.
During some alarms a second operation retry attempt is carried out and if repeated again, the
machine will stop. Signalling should be indicated since the first failure occurs. If the second retry
attempt is ok, the signalling must be switched off.
In case that a machine stop has been caused by alarm, the resetting is done by disconnecting
or by switching over to position 0. If the dip-switch 2 ON, time alarms are not to be followed.
5.4.- SAFETY PRESSURE
When the pressure contact (P) is open, instantly, all outputs switch over to off position.
When it is closed again, there are two possibilities:
