12-3
Error Type
Cause
①
Failure of thread detecting
roller
②
Poor connection & quality
of tension adjusting board
①
Bad SMPS for jump
②
Bad wiring for jump motor
Bad jump motor
③
Bad connection
④
Switch failure on tension
adjusting board and bad
circuit board
①
Bad design
②
Inadequate tension on X-Y
belt
③
Foreign substance in X-Y
rail
④
Failure of X/Y driver
⑤
Heavy load on frame
Disassemble the roller and clean
the roller and bush bearing.
Check board connection and
change the circuit board
Change front fuse
,
in
controller box
Check wiring and change jump
motor
Check connection
Change switch and circuit board
Correct tape
Adjust tension
Clean the rail
Change circuit board
Reduce speed of main shaft
rotation
Inspection & Repair
Check fuse spec
1) 3-phase:
,
= 250V 15A
2) 1-phase:
,
= 250V 30A
Reference
Poor detection
of upper thread
Bad jump
Bad stitch