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Section5 Troubleshooting
WARNING
Do not try to disassemble, repair, or modify this product. Otherwise may cause the safety
functions to stop working properly.
Disassemble of AOPD and machine
Phenomena of fault
Cause
Solution
AOPD can not work, all the
indicators are off
No supply voltage
Couple in correct power supply
Controller fault
Refer to sheet 5.2
AOPD works intermittently, the
conversion of indicator is
abnormal
Low supply voltage or there is bad
contact in the circuit
Couple in correct power supply or
correct bad contact
Bad beam focusing for AOPD or
critical beam focusing
Readjust the position of emitter, receiver to
make beam focusing all right
The conversion of indicator is
normal, press is not able to
work
The connection between OSSD
output signal cable terminals and
electric part of machine cut or
incorrect
Check and repair the electric circuit of
machine connected with OSSD, make
the connection correct
Output signal cable opens circuit
Repair or replace the output signal cable
Electric fault of machine
Check and repair electric circuit of machine
Controller fault
Refer to sheet 5.2
The conversion of indicator is
normal, shade the light curtain,
the press doses not stop
The electric circuit of machine
connected with OSSD shorts circuit
Check and repair the electric circuit of
machine connected with OSSD
Output signal cable shorts circuit Replace it and its connector
The circuit of cam switch for
muting function is short circuit
Check and repair the circuit of cam
switch for muting function
The braking of machine is at fault. Check the machine
The conversion of indicator is
normal, shade the light curtain,
the press doses not stop
The electric circuit of machine
connected with OSSD shorts circuit
Check and repair the electric circuit of
machine connected with OSSD
Output signal cable shorts circuit Replace it and its connector
The circuit of cam switch for
muting function is short circuit
Check and repair the circuit of cam
switch for muting function
The braking of machine is at fault. Check the machine
The conversion of indicator is
normal, shade the light curtain, the
press doses not stop at once
The adjustment of cam switch for
muting function is incorrect
Check the machine or adjust the cam
switch to the correct angle
The clutch of machine is at fault
Check the machine
Turn the function switch to the non-
protection side, press is not able to
work
The electric circuit of machine
connected with OSSD is broken
Check and repair the electric circuit of
machine connected with OSSD, make the
connection correct
Output signal cable opens circuit
Repair or replace the output signal cable
The loop of electric stroke for
machine disconnects
Check and repair electric circuit of machine
Controller fault
Refer to sheet 5.2
Turn the function switch to the
protection side, press is not able to
work;turn the unction switch to the
non-protection side, press works
normally
Controller fault
Refer to sheet 5.2
Emitter or receiver fault
Refer to sheet 5.3
Sheet 5.1
All the phenomenon shown in the above sheet takes place when the power switch is turned on.
