
D U P
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I C
A
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Electrical
Troubles
C 520 L
C 520 X
POWER SUPPLY When closing main
Input voltage on QS1
switch QS1 the
Main fuses FU1
control panel remains
Fuse FU2 trafo TM1
OFF
24 Vdc on GS1
ALARMS
Par. 6-4
DISPLAY
Readout off
Check as per par. POWER
SUPPLY
5 Vdc on GS1
DIGITAL
Value steady
5 Vdc between terminals of
THICKNESS
potentiometer RP1
Potentiometer RP1
Check for variable 5 Vdc be
tween points 3-7 on display
PN1
Thickness not true
Set minimum value on readout
(par. 7-5)
AUTOMATIC
No automatic incision
Check for switch SB4 to be on
INCISION
Check if LED on incision
DEVICE
sensors SQ5-SQ6 lights
MOTORS
Overload alarms
Press the blue push-button to
restore the electronic thermal
cutout involved
Check for absence of friction or
defects
Maintenance And Repair 7-9