YASKAWA SGMAS User Manual page 153

9 Inspection, Maintenance, and Troubleshooting
9.1.3 Troubleshooting of Alarm and Warning
Alarm
Alarm Name
Display
A.860
Encoder Over-
heated
(Only when an
absolute encoder
is connected)
(Detected on the
encoder side.)
A.b31
Current Detec-
tion Error 1
A.b32
Current Detec-
tion Error 2
A.b33
Current Detec-
tion Error 3
A.bF0
System Alarm
0
(Internal pro-
gram processing
error)
A.bF1
System Alarm
1
(Internal pro-
gram error)
A.bF2
System Alarm
2
(Current control
processing pro-
gram error)
A.bF3
System alarm 3
(Encoder inter-
face processing
error)
A.bF4
System Alarm
4
(CPU watchdog
timer error)
A.C10
Servo Overrun
Detected
(Detected when
the servo is ON.)
A.C80
Absolute
Encoder Clear
Error and Multi-
turn Limit Set-
ting Error
9-12
Table 9.3 Alarm Display and Troubleshooting (Cont'd)
Situation at Alarm
Occurrence
Occurred when the An Encoder fault
control power sup-
A SERVOPACK board fault
ply was turned
ON.
Occurred during The ambient temperature at servomotor is too
operation. high.
The servomotor load is more than the rated load.
An Encoder fault
A SERVOPACK board fault
Occurred when the Phase-U current detection circuit fault
control power sup-
ply was turned ON
Phase-V current detection circuit fault
or during opera-
tion.
Power supply detection circuit fault
Servomotor cable disconnection
Occurred when the A SERVOPACK board fault
control power sup-
ply was turned
ON.
Occurred when the A SERVOPACK board fault
control power sup-
ply was turned
ON.
Occurred when the Incorrect order of phase-U, -V, and -W in the ser-
servo was ON or a vomotor wiring.
reference was
An Encoder fault
input.
A SERVOPACK fault
Occurred when the An Encoder fault
control power sup-
A SERVOPACK board fault
ply was turned ON
Occurred when an An Encoder fault
encoder alarm was
A SERVOPACK board fault
reset
Cause
occurred.
occurred.
occurred.
occurred.
occurred.
occurred.
occurred.
occurred.
occurred.
occurred.
occurred.
occurred.
Corrective Actions
Replace the servomotor.
Replace the SERVOPACK.
The ambient temperature must be 40°C or less.
The servomotor load must be within the speci-
fied range.
Replace the servomotor.
Replace the SERVOPACK.
Replace the SERVOPACK.
Replace the SERVOPACK.
Check the motor wiring.
Replace the SERVOPACK.
Replace the SERVOPACK.
Correct the servomotor wiring.
Replace the servomotor.
Replace the SERVOPACK.
Replace the servomotor.
Replace the SERVOPACK.
Replace the servomotor.
Replace the SERVOPACK.