Service manual

S-4000 ISBH+I Omron
e-mail: [e-mail]; [e-mail]; website: www.amfreece.com
Phones: [phone] (Serv
ice), [phone](343) (Spare Parts); Fax: [phone]
Revised 11/2009
2-8
TROUBLESHOOTING
SYMPTOM
POSSIBLE CAUSE
PROBABLE SOLUTION
5. ELECTRICAL FAULTS
No power supply
Fuse F1 failure
Power switch QS1 damaged
Power GS1 failure
Power filter Z1
The supply voltage is above
255 V - relay VC1 installed
Relay VC1 failure
Cable from the display
disconnected
Display or its control damaged
Fuse F2 damaged
Contactor KM1 damaged
Servo U1 error or filter Z2 error
Error in sewing motor circuit
The PLC incorrectly set
When switch in position
I, neither the work light,
display or the cooling fan
operate
When switch in position I,
display does not operate
When sewing operation started,
motor does not operate.
Contactor KM1 switched on.
When the machine is switched
on, incorrect type of the
machine appear on the display
(example: S4000 BH instead
of S4000 ISBH, TKF, LS)
Check main power supply or
voltage in the socket
Replace fuse PN 12.0008.4.665
Replace the switch 12.0008.4.835
Replace the power 12.0010.4.168
Replace the filter 12.0010.4.078
Call electroengineer in the plant
Replace the relay 12.0008.4.690
Check the display connection
Replace display PN
24.8001.2.002
Replace fuse 12.0008.4.664
Replace contactor 12.0008.4.833
Call AMF Reece service or
replace servo U1 (page 2-10)
or filter Z2 (page 2-10)
Switch the machine off for 1
minute, or restart it, alternatively
call AMF Reece service
Set the potenciometer on the PLC
according to the electrical diagram
- see service section, section H)