Al-1318 (Overvoltage (Converter)) - YASKAWA Motoman UP6 Instructions Manual

AL-1318 (OVERVOLTAGE (CONVERTER))

The regenerative energy at deceleration of the motor speed is too
large to be controlled by the regeneration circuit of the
SERVOPACK.
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.)
Is the regenerative resistor
disconnected? (Disconnect the
cable for the B1 and B2 terminals
of the converter to measure the
resistance.) (See Fig. 4.)
No
Replace the regenerative resistor.
Replace the converter.
Alarm?
Yes
Replace the WRCA01 circuit board.
Alarm?
Yes
Contact your Yaskawa
representative.
Reduce the teaching speed 30% in
the four steps before and after the
step where the alarm occurs.
Alarm?
Yes
The robot is overloaded. Reduce the
load.
Yes
Is the primary voltage of the
breaker 200 V (+10% to 15%)?
Yes
Change the primary voltage of the
breaker to the specified voltage.
No
Yes
Alarm?
Yes
No
No
Continue normal
operation.
Converter
D o e s t h e a l a r m o c c u r
when the servo is OFF?
No
Alarm?
No
Continue normal
operation.
Replace the converter.
Yes
No
Alarm?
Yes
Continue normal
operation.
No
Continue normal
operation.
SERVOPACK
CN30
CN1
Fig. 3
38
An alarm
occurs.
No Yes
Remove connector CN30 on the
WRCA01 circuit board and re-insert it.
(See Fig. 3.)
Alarm?
Yes
Remove connector CN1 on the
converter and re-insert it. (See Fig. 3.)
Alarm?
Yes
Alarm?
No
Replace the WRCA01 circuit board.
Yes
Contact your Yaskawa
representative.
Converter
L1 L2 L3 B1 B2
Fig. 4
No
No
Continue normal
operation.
Alarm?
No
Continue normal
operation.
Tester
(Measure the
resistance.)
Regenerative
resistor