MU-100A
16. Troubleshooting
16-1
16.
Troubleshooting
When the following errors occur, the WARNING signal is output.
Display
Contents
Cause
Measures
Axis1 PRESET ERROR
Axis2 PRESET ERROR
PRESET error
The counter value has
reached the PRESET
value.
Change the PRESET value
or turn on the power supply
again to reset the counter
value to the counter value
on the schedule setting.
Axis1 LC OVER ERROR
Axis2 LC OVER ERROR
Load cell error
The weld force of load
cell exceeds 120% of
rating.
The load cell is
disconnected. (*)
Set the weld force to 120%
or less of rating.
Check that the load cell is
disconnected or have a bad
connection.
Excessive pressure is
applied on the load cell and
it may malfunction. Contact
us.
STOP ERROR
STOP error
STOP input becomes
open.
Short the STOP input.
CPU ERROR
CPU error
The CPU malfunctions.
The CPU element may
malfunction. Contact us.
MEMORY ERROR
Memory error
The contents of the
memory is abnormal.
Reset the error. The setting
has been initialized, so set
it again. If the error occurs
again, memory element
may malfunction. Contact
us. When the memory is
rewritten by noise, take
measures against noise
around.
Axis1 HEAD ERROR
Axis2 HEAD ERROR
LS signal error
The force-detecting
signal (LS signal) is not
input even after the Head
Error Time.
Check for the connection.
When the connection is
proper, check for the limit
switch on the welding head.
Axis1 FINISH ERROR
Axis2 FINISH ERROR
FINISH signal
error
The finish signal is not
input even after the
Finish Error Time
followed by the WELD
START signal output.
Check for the connection.
When the connection is
proper, check that the
welding power supply
outputs the finish signal.
* When the load cell with 10000 N is disconnected, NG may be output.