9.1 Troubleshooting
9-5
9
9.1.3 Troubleshooting of Alarm and Warning
When an error occurs in SERVOPACKs, 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
sections 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 9.3 Alarm Display and Troubleshooting
Alarm
Display
Alarm Name
Situation at Alarm
Occurrence
Cause
Corrective Actions
A.020
Parameter
Checksum
Error
(EEPROM data
of SERVOPACK
is incorrect.)
Occurred when the
control power sup-
ply was turned
ON.
The control power supply ranged from 30 VAC
to 60 VAC.
Correct the power supply, and set Fn005 to ini-
tialize the parameter.
The power supply was turned OFF while chang-
ing the parameter setting.
Set Fn005 to initialize the parameter, and
input the parameter again.
The number of times that parameters were writ-
ten exceeded the limit. For example, the parame-
ter was changed every scan through the host
controller.
Replace the SERVOPACK.
(Reconsider the parameter writing method.)
SERVOPACK EEPROM and the related circuit
are faulty.
Replace the SERVOPACK.
A.021
Parameter For-
mat Error
(The data of the
parameter is
incorrect)
Occurred when the
power was turned
back ON after
parameters are
copied with
parameter copy
function of the
digital operator.
The model number of the SERVOPACK in the
software being used is old and is not compatible
with current parameters.
Replace the SERVOPACK
Change the parameter settings to be compati-
ble with the model number in the software
being used.
A.022
System Check-
sum Error
(The data of the
parameter is
incorrect)
Occurred when the
control power sup-
ply was turned
ON.
The control power supply ranged from 30 VAC
to 60 VAC.
Correct the power supply, and set Fn005 to ini-
tialize the parameter.
The power supply was turned OFF while chang-
ing the parameter setting.
Set Fn005 to initialize the parameter, and input
the parameter again.
SERVOPACK EEPROM and related circuit are
faulty.
Replace the SERVOPACK.
A.023
Parameter
Password Error
(The data of the
parameter is
incorrect)
Occurred when the
control power sup-
ply was turned
ON.
A SERVOPACK board fault occurred.
Replace the SERVOPACK.
A.030
Main Circuit
Detector Error
Occurred when the
control power sup-
ply was turned ON
or during opera-
tion.
A SERVOPACK fault occurred.
Replace the SERVOPACK.
A.040
Parameter Set-
ting Error
(The parameter
setting out of the
allowable set-
ting range)
Occurred when the
control power sup-
ply was turned
ON.
The SERVOPACK and servomotor capacities do
not match each other.
Select a proper combination of SERVOPACK
and servomotor capacities.
The SERVOPACK EEPROM and the related cir-
cuit are faulty.
Replace the SERVOPACK.
A.042
Combination of
parameters out
of setting range
Occurred after
having changed
the setting of
Pn533 “Program
JOG Movement
Speed.”
The speed set for Fn004 “Program JOG Opera-
tion” is below the allowable range because of the
change in Pn533 “program JOG movement
speed.”
Increase the setting for Pn533 “Program JOG
Movement Speed.”
SIEPS80000025.book 5 ページ ２００４年１０月２５日 月曜日 午前１１時５７分
