Yaskawa Sigma-5 User Manual: Design and Maintenance - Linear Motors MECHATROLINK-III Communications Reference - Manual (Page 276)

8.1 Alarm Displays
8-15
8
Trou
blesh
ooting
A.861:
Motor Overheated
The ambient operating tempera-
ture around the servomotor is too
high.
Measure the ambient operating tem-
perature around the servomotor.
Reduce the ambient operating tem-
perature of the servomotor to 40 °C
or less.
The motor load is greater than the
rated load.
Check the accumulated load ratio
(Un009) to see the load.
Operate the SERVOPACK so that
the motor load remains within the
specified range.
A serial converter unit fault
occurred.
−
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the serial converter unit may
be faulty. Replace the serial con-
verter unit.
A SERVOPACK fault occurred. −
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
A.890:
Encoder Scale Error
A linear scale fault occurred. −
The linear scale may be faulty.
Replace the linear scale.
A.891:
Encoder Module Error
A linear scale fault occurred. −
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the linear scale may be
faulty. Replace the linear scale.
A.b31:
Current Detection
Error 1
The current detection circuit for
phase U is faulty.
−
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
A.b32:
Current Detection
Error 2
The current detection circuit for
phase V is faulty.
−
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
A.b33:
Current Detection
Error 3
The detection circuit for the cur-
rent is faulty.
−
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
The servomotor main circuit
cable is disconnected. Check for disconnection of the ser-
vomotor main circuit cable.
Correct the servomotor wiring.
A.b6A:
MECHATROLINK
Communications ASIC
Error 1
SERVOPACK MECHA-
TROLINK communication sec-
tion fault.
−
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
A.b6b:
MECHATROLINK
Communications ASIC
Error 2
MECHATROLINK data recep-
tion error occurred due to noise
interference.
−
Take measures against noise. Check
the MECHATROLINK communi-
cations cable and FG wiring and
take measures such as adding ferrite
core on the MECHATROLINK
communications cable.
SERVOPACK MECHA-
TROLINK communication sec-
tion fault.
−
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
A.bF0:
System Alarm 0
A SERVOPACK fault occurred. −
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
A.bF1:
System Alarm 1
A SERVOPACK fault occurred. −
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
(cont’d)
Alarm Number:
Alarm Name
(Alarm Description)
Cause Investigative Actions Corrective Actions