Mocom millennium B - E 020

Rev. 1
Page 3-
14
E 020
LCD INDICATION Alarm description Effect/Signaling
Possible cause / Check
Proposed solution
DOOR
UNLOCKED
Exceeded the timeout
for the operation of
door locking
mechanism (closing)
At the start of the cycle the
door locking mechanism
exceeds the timeout of 2.5
seconds.
Push on the door micro-switch pin, start the
cycle and check the operation of the door
locking mechanism.
If the door locking mechanism operates correctly and the LCD
displays the message “WARMUP”:
- Check that the bushes on the fork turn freely.
- Replace the blocked bush - see card Gr6-3
- Explain the operator for the correct procedure to start
the cycle.
If the mechanism operates correctly and the LCD shows the
alarm:
- Check the integrity of the release micro-switch .
- Replace the release micro-switch - see card Gr6-5
- Check the integrity of the locking micro-switch.
- Replace the locking micro-switch - see card Gr6-5
- Check on the motherboard the wiring of the release
micro-switch (white) and eventually restore the
connection.
- Unlock the door– see Attachment H or Attachment I.
If the mechanism blocks at the half of the stroke between
locking and release micro-switches:
- Check for possible motor failure (noisy during the
operation).
- Replace the motor - see card G6-6.
- Check for possible step-running of the locking
mechanism.
- Replace the pin coupling the motor and locking
mechanism - see card G6-6.
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