4. Control print troubleshooting
SYMPTOM
DIAGNOSIS
ACTION
Motor is dead, power switch
is illuminated, FAULT-LED is
on
Motordriver probably not
working
Check motordriver fuse F2
Check for undervoltage
Check for motordriver
overheat
Check on motorwires for
short connection
Check trafo wiring
Motor turning direction is
wrong
Wrong DIL-switch DIR setting
Change DIL-switch DIR
Wrong Motor wiring
Reconnect motor wires ac-
cording to the Technical
Handbook
Motor makes noise and
shakes. It does not turn
correctly
Faulty motor driver chip
Replace the board
Missing connection of one mo-
tor wire
Connect motor wires accord-
ing to the Technical
Handbook
No action after power on but
motor is under power
Probably set to Nonstop slave
mode
Switch Nonstop mode to off
The potentiometers are
broken
Transportation damage
Use the original transport box
The primary fuse often blows The mains impedance is too low Use an extended power cord
The 5V and 12V LEDs are
both off
Fuse F3 is blown, probably re-
sult of a short of the 12V in the
peripheral units
Check the peripheral units,
replace the fuse (1.6AT)
The 12V LED is off
Probably result of a short of the
12V in the peripheral units
Check the peripheral units
The 5V LED is off
Probably result of a short of the
5V in the processor part
Replace the board
The RESET LED is on
Undervoltage of the 5V circuit
Replace the board
The RESET LED periodically
flashes
Microprocessor error
Replace the board
EPROM faulty
Replace the EPROM
5999.515-01E 12.06.2007 WM
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