0108 4
13
Notice
Date
Page
01201138
INSTRUCTION
HANDBOOK
13. Maintenance
Operating incidents Cause Action
I/O COMM ERROR Error 21
Communication between the
CPU board and one of the I/O
boards disturbed or lost.
- Transient fault. No action required.
- The PCB is faulty.
- Turn the machine's wall
switch off and on again. Start a
program.
- Replace PCB.
CMIS COMMUNICATION Error 19
Machine has lost contact with
network.
- Communication between the programme unit card
A1 and the network has been interrupted.
- Verify that the cable between
the network and X7 on program-
me unit card A1 is connected. If
the cable is properly connected,
contact the person responsible
for the network.
TACHO Error 20
The motor controller does not re-
ceiving an interlock signal during
programme operation.
-
Fault in MCU receiving circuitry for lock acknowled-
gement signal. The test of the MCU-interlock circuits
proceeds in the following way: Before the locking of
the door lock a speed command is sent from the ti-
mer to the MCU (=0 Hz). Then the timer checks that
the value of the apparent current (ru 15) and output
(ru 20) is below the value 5, which is a condition for
locking the door. When the door is locked the timer
again command running at 0 Hz and this time the
apparent current and the output voltage shall have a
value above 5.
- Switch off the machine for at
leas 30 seconds to ensure the
motor controller has been com-
pletely reset. Then try to start the
machine again.
PHASE Error 23
Incorrect input voltage to exter-
nal equipment.
- An input on I/O card 1 (X16:7-8) can be connected
to external equipment that monitors received mains
signals in terms of voltage levels, loss of phase,
etc. If this input goes high, the error message is
displayed.
- Find out the reason for the
error indication by inspecting the
mains monitoring equipment.
LEVEL OFFSET Error 27
The pressure sensor for the
water level signals a value that
is so different from the empty
machine state that the automatic
level calibration cannot adjust
the level system.
.
- Try to restart the machine (i.e.
reset the error code) by pressing
START.
MOTOR TOO HOT Error 40
The frequency converter has
detected a high temperature of
the motor.
- The motor's fan does not cool down anymore.
- Internal fault in motor causing high temperature.
- Check the direction of rotation
of the fan.
- Clean the grid of the fan.
- Replasse the fan.
- Replace the motor.
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