Yaskawa Sigma-5 Large Capacity Users Manual: Design and Maintenance-Rotary Motors-Mechatrolink-III Communication Reference - Manual (Page 340)

9.2 Warning Displays
9-29
9
Trou
blesh
ooting
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 fault occurred in the
SERVOPACK.
–
A fault occurred in the SERVOPACK.
Replace the SERVOPACK.
A.963
MECHATROLINK
Communications
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 fault occurred in the
SERVOPACK.
–
A fault occurred in the SERVOPACK.
Replace the SERVOPACK.
A.971:
Undervoltage
The AC power supply
voltage dropped to:
• 140 V or less for 200-
VAC SERVOPACKs.
• 280 V or less for 400-
VAC SERVOPACKs.
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.
A fault occurred in the
SERVOPACK or con-
verter.
−
The SERVOPACK or converter may
be faulty. Replace the SERVOPACK
or converter.
A.97A
Command
Warning 7
(Phase Error)
A command that cannot
be executed in the cur-
rent phase was sent.
–
Send a command after command
sending condition is satisfied.
A.97B
Data Clamp
(Out Of Range)
The set command data
was clamped to a mini-
mum or maximum
value out of the allow-
able setting range. –
Set the value of the command data
within the allowable range.
(cont’d)
Warning Num-
ber: Warning
Name (Warning
Description)
Cause Investigative Actions Corrective Actions