30
Fault Phenomenon Reason Solution
fault indicator ashing once
per second
safety output short output overload or short
fault indicator ashing twice
per second
abnormal muting
signal or switch
muting switch fault
fault indicator ashing 5 times
per second
EDM fault EDM disconnection
step pedal but indicator
is off
double pedal signal is
ineffective
pedal switch wiring fault
slow speed indicator is off
when press closing
slow speed signal is
ineffective
slow speed switch fault
press brakes returned
trip,muting indicator is ashing
muting signal is
ineffective
muting switch fault
stop work when press
closing, safety output
disconnected,can't recover
from the condition
the workpiece is too
thick or wavy material,
E1 beam interrupted
when closing
Set higher RPM
no laser sent out from emitter
when press brakes upper
mould at the top dead center
press brakes is
muted,muting switch
is not disconnected
step the pedal, press
brakes closes and
emitter sends out laser
normally,otherwise check
the muting signal
Note: refer to the form for other guarded machines
Fig.8.1 The SLA-3 device and press brakes faults analysis
8 Troubleshooting
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