Al-4301 (Contactor Error) - YASKAWA Motoman UP6 Instructions Manual

AL-4301 (CONTACTOR ERROR)

CAUTION
Before checking the wiring connections,
turn OFF the control power supply.
Use a tester to confirm that all the LEDs
on the SERVOPACK and converter are
unlit and that no charged electricity
remains.
(It may take a few minutes until all the
electricity is discharged.)
XIU01-!!
XTU01
K14
K15 K13
Fig. 21
Non-fuse breaker
R S T
r s t
Converter
L1 L2 L3 B1 B2
After turning OFF the non-fuse breaker, measure the
resistance between the non-fuse breaker's secondary
terminals and the converter's input power supply
terminals to confirm that all are open.
Measure the resistance between r and L1, s and L2,
and t and L3.
Fig. 22
Tester
(Measure the
resistance.)
An alarm
occurs.
Turn the control power supply OFF
and then ON.
Alarm?
Yes
Is the contactor stuck? (See Fig. 22.)
(The contactor should be open.)
Alarm?
Yes
Confirm that relay K15 of the XTU01 circuit
board is not stuck or disconnected.
(See Fig. 22.)
Alarm?
Yes
Replace the XTU01 circuit board.
Alarm?
Yes
Replace the WRCA01 circuit board.
Alarm?
Yes
Contact your Yaskawa
representative.
52
No
Continue normal operation.
The wrong operation of the WRCA
circuit board caused the alarm.
No
Continue normal operation.
The stuck contactor caused the alarm.
No
Continue normal operation.
The defective relay caused the alarm.
No
Continue normal operation.
The defective XTU01 circuit
board caused the alarm.
No
Continue normal operation.
The defective WRCA01 circuit
board caused the alarm.