10. Troubleshooting
WMD078TE0PAA07
134
10.2 When displays blink irregularly
If a phase of the three-phase input power source
input becomes open (open phase), the seven-
segment displays and LEDs blink irregularly.
Check input power system.
10 EXTERNAL STOP1
(External temporary
stop1)
-
A
Jig terminal received a
temporary stop signal
from an external device.
Remove the cause of the
error in the external device.
11 EXTERNAL STOP2
(External temporary
stop2)
-
A
Jig terminal received a
temporary stop signal
from an external device.
Remove the cause of the
error in the external device.
17 422 TIME OUT
(422 communication error)
1-4
B
Exceeded RS-422 con-
nection time-out period
Turn power switch off and
back on again.
27 MOTOR POWER ERR.
(Motor power error)
1
B
An error in motor power
source.
Turn off the power switch
and investigate the cause
of the error.
ENCODER ERR.
(Encoder detection error)
2
Failed to detect encoder
signal of the motor.
MOTOR OVER CURR.
(Motor over current error)
3
Over-current to the
motor
MOTOR CURR.ERR.
(Motor overload error)
4
Motor rotation fre-
quency is low.
60
|
62
ー
(Other 422 communica-
tion error)
-
B
Communication cable
(or welding power
source itself) is influ-
enced by noise.
Review wiring work.
(Lay cables, such as commu-
nication cable, away from
the source of the noise.)
63
|
65
ー
(Other 232 communica-
tion error)
-
B
Communication cable
(or welding power
source itself) is influ-
enced by noise.
Review wiring work.
(Lay cables, such as commu-
nication cable, away from
the source of the noise.)
82 IIF COM ERR
(IIF unit connection error)
-
B
Error in connection with
IIF unit
(*)
.
Turn off the power switch
and investigate the cause
of the error.
83 EXP. Unit
-
B
Connection failure of the
Welding Table Expansion
Unit.
Turn off the power source,
and then turn it on again.
If this does not solve the
problem, hold the MATERIAL
button for 5 seconds or lon-
ger.
(*)
The IIF unit is not applicable to this welding power source.
Note
If the error recurs frequently after taking the above remedy, contact Panasonic representatives.
Main
No.
LCD (Contents)
Sub
No.
Class
Cause
Remedy
