Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors MECHATROLINK-III Communications Reference - Manual (Page 324)

9 Troubleshooting
9.2.2 Troubleshooting of Warnings
9-28
A.962
MECHATROLINK
Communications
Warning
(FCS Error)
MECHATROLINK
wiring is incorrect.
Confirm the wiring.
Correct the MECHATROLINK wir-
ing.
Or, connect a terminal to the terminal
station.
MECHATROLINK
data reception error
occurred due to noise
interference.
Confirm the installation conditions.
Take measures against noise. Check
the MECHATROLINK communica-
tions cable and FG wiring and take
measures such as adding ferrite core
on the MECHATROLINK communi-
cations cable.
A SERVOPACK fault
occurred.
–
A fault occurred in the SERVOPACK.
Replace the SERVOPACK.
A.963
MECHATROLINK
Communica-
tions Warning
(Synchronization
Frame Not
Received)
MECHATROLINK
wiring is incorrect.
Confirm the wiring.
Correct the MECHATROLINK wir-
ing.
Or, connect a terminal to the terminal
station.
MECHATROLINK
data reception error
occurred due to noise
interference.
Confirm the installation conditions.
Take measures against noise. Check
the MECHATROLINK communica-
tions cable and FG wiring and take
measures such as adding ferrite core
on the MECHATROLINK communi-
cations cable.
A SERVOPACK fault
occurred.
–
A fault occurred in the SERVOPACK.
Replace the SERVOPACK.
A.971: Under-
voltage
• For 100 VAC SER-
VOPACKs:
The AC power supply
voltage is 60 V or
less.
• For 200-VAC SER-
VOPACKs:
The AC power supply
voltage is 140 V or
less.
• For 400-VAC SER-
VOPACKs:
The AC power supply
voltage is 280 V or
less.
Measure the power supply voltage.
Set the power supply voltage within
the specified range.
The power supply volt-
age dropped during
operation.
Measure the power supply voltage. Increase the power supply capacity.
Occurrence of instanta-
neous power interrup-
tion.
Measure the power supply voltage.
When the instantaneous power cut
hold time (Pn509) is set, decrease the
setting.
The SERVOPACK fuse
is blown out.
−
Replace the SERVOPACK and con-
nect a reactor to the SERVOPACK.
A SERVOPACK fault
occurred.
−
The SERVOPACK may be faulty.
Replace the SERVOPACK.
(cont’d)
Warning Num-
ber: Warning
Name (Warning
Description)
Cause Investigative Actions Corrective Actions