YASKAWA E-V Series User Manual page 229

Warning
Warning Name
Display
MECHATROLINK
A.960
Communications
Warning
A.971 Undervoltage
Situation at Warning
Occurrence
MECHATROLINK-II
Confirm the wiring.
wiring is incorrect.
MECHATROLINK-II
data reception error
Confirm the installation conditions.
occurred due to noise
interference.
A SERVOPACK fault
–
occurred.
The power supply volt-
age for a 200 VAC
model is 120 V or
below or the power sup- Measure the power supply voltage.
ply for a 400 VAC
model is 240 V or
below.
The power supply volt-
age dropped during Measure the power supply voltage.
operation.
An instantaneous power
Measure the power supply voltage.
failure occurred.
The fuse in the SERVO-
−
PACK is burned out.
A SERVOPACK fault
−
occurred.
Cause
Correct the MECHATROLINK-II
wiring.
Or, connect a terminal to the terminal
station.
Take measures against noise. Check
the MECHATROLINK-II communi-
cations cable and FG wiring and take
measures such as adding ferrite core
on the MECHATROLINK-II commu-
nications cable.
A fault occurred in the SERVOPACK.
Repair or replace the SERVOPACK.
Use a power supply voltage within the
specified range.
Increase the power supply capacity.
Set the power supply voltage to the
specified range. Lower the instanta-
neous power cut hold time (Pn509).
Repair or replace the SERVOPACK
and connect an AC/DC reactor to the
SERVOPACK.
The SERVOPACK may be faulty.
Repair or replace the SERVOPACK.
8.2 Warning Displays
Corrective Actions
8-25
8