Yaskawa Sigma II Series DC Power Input SGMAJ - Manual (Page 286)

10.1 Troubleshooting
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10.1.3 Troubleshooting of Alarm and Warning
When an error occurs in servodrive, an alarm display such as A.†† and CPF†† or warning display such as
A.9†† appears on the panel operator. However, the display “A.--” is not an alarm. Refer to the following sec-
tions to identify the cause of an alarm and the action to be taken.
Contact your Yaskawa representative if the problem cannot be solved by the described corrective action.
(1) Alarm Display and Troubleshooting
Table 10.3 Alarm Display and Troubleshooting
Alarm
Display
Alarm Name
Situation at Alarm
Occurrence
Cause Corrective Actions
A.02 Parameter
Breakdown
(The EEPROM
data storing the
parameter is
incorrect.) Occurred when the
control power sup-
ply was turned ON. The control power supply voltage is low. Correct the power supply, and set Fn005 to initial-
ize the parameter.
The power supply was turned OFF while changing
the parameter setting.
The power supply was turned OFF while an alarm
was being written. Set Fn005 to initialize the parameter and input the
parameter again.
The number of times that parameters were written
exceeded the limit. For example, the parameter was
changed every scan through the host controller. Replace the SERVOPACK.
(Recheck the parameter writing method.)
The SERVOPACK EEPROM and the related circuit
are faulty. Replace the SERVOPACK.
A.03 Main Circuit
Encoder Error Occurred when the
control power sup-
ply was turned ON
or during operation The control power supply voltage is low. Correct the power supply.
Replace the SERVOPACK.
A.04 Parameter
Setting Error
(The parameter
setting was out
of the allowable
setting range.) Occurred when the
control power sup-
ply was turned ON. The incorrect parameter was being loaded. (The
incorrect value was rejected as an error at the digital
operator.) Set Fn005 to initialize the parameter.
The SERVOPACK EEPROM and the related circuit
are faulty. Replace the SERVOPACK.
A.05 Combination
Error
(The SERVO-
PACK and ser-
vomotor
capacities do not
correspond.) Occurred when the
control power sup-
ply was turned ON. The SERVOPACK and servomotor capacities do not
correspond to each other.
Servomotor capacity / SERVOPACK capacity
≤ 1/4
or servomotor capacity / SERVOPACK capacity ≥ 4
Select the proper combination of SERVOPACK
and servomotor capacities.
The parameter that is written in the encoder is incor-
rect. Replace the servomotor (encoder).
A SERVOPACK board fault occurred. Replace the SERVOPACK.