UNOCODE PRO
Operating manual - English
74
Copyright Silca 2017
Fig. 42
Fig. 43
Optical reader not working
a) glass lent on the optical reader is dirty
b) wiring between optical reader and the electronic control board is not seeded properly
c) defective optical reader
d) defective electronic control board
Key-cutting machine fails to
communicate with computer
a) wiring between 9-pin serial port and electronic circuit board not seeded properly or disconnected
b) serial cable between key-cutting machine and computer is faulty
c) computer serial port is not functional
d) defective electronic control board
The display shows the
message: ‘TEMPERATURE
ALARM - turn the machine
off’.
check that the fan on the back of the key-cutting machine is working:
Not working:
a) fan faulty
b) electronic control board faulty
Working:
electronic control board faulty
The display shows the
message: ‘I/O POWER
ALARM – check fuse F4”.
a) fuse F4 on the electronic control board faulty.
b) short circuit on inlets or outlets. To find which inlet or outlet is causing the error message, disconnect the J4-5-7-8-
12-14-15-20 connectors one at a time and check each time whether the alarm disappears.
The display shows the
message: ‘DIGITAL OUTLET
PROTECTION ALARM - turn
the machine off’.
a) short circuit on the outlets. To find which outlet is causing the error message, disconnect the J4-5 connectors one at
a time and check each time whether the alarm disappears.
b) internal fault on the electronic control board.
The display shows the
message: ‘CUTTER MOTOR
ALARM -
check fuse F1
’
.
a) fuse F1 on the electronic control board faulty.
b) cutter microswitch on protective cover triggered or disconnected (D4) (fig. 43).
c) cutter motor wiring disconnected.
d) internal fault on the electronic control board.
FAULT
PROBABLE CAUSE
D3
D4
