Specifications

Revised 06/2007
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2-9
SYMPTOM
POSSIBLE CAUSE
PROBABLE SOLUTION
S-311
When sewing operation
started, motor does not
operate. Frequency inverter
U5 error - check its display -
does not light. Contactor KM1
switched on.
TROUBLESHOOTING
4. ELECTRICAL FAULTS
When switch in position I,
neither the work light or the
cooling fan operate
Check main power supply or
voltage in the socket
No power supply
SYMPTOM
POSSIBLE CAUSE
PROBABLE SOLUTION
The length of the buttonhole and the
length of a flybar is incorrectly set
Set correct length of a buttonhole and
length of a flybar - see section D3.
The total can not exceed 50.
After the machine is switched
on, display does not light
Fuse F4 failure (T10A)
Display or its control damaged
Cable from the display
disconnected
GS1 Power damaged
Power switch QS1 damaged
Fuse F1, F2 failure (T2A)
Replace fuse PN 12.0008.4.664
Replace display or control units,
call AMF Reece Service
Check the display connection
Replace the power 12.0008.4.568
Replace the switch 12.0008.4.835
Replace fuse PN 12.0008.4.665
Frequency inverter U5
19.8001.0.008 error or filter Z1
error
Call AMF Reece service
When sewing operation
started, motor fails to operate.
Frequency inverter U5 error -
check its display - does not
light. Contactor KM1 switched
off.
Contactor KM1 damaged
Replace contactor 12.0008.4.833
Emergency stop turned off
Turn on Emergency stop
Defective Emergency stop button
Change the stop button
PN 12.0008.4.563
Disconnected girth Em. stop
Check the girth button
Contactor KM1 damaged
Replace contactor 12.0008.4.833
Indexer motor does not hold
its position.
Change
12.0008.4.754
Check of motor driver connection
06.1900.0.005
Change motor
06.1900.0.003
Motor driver defect
Disconnection of stepping
motor supply
Stepping motor defaut