YASKAWA SGDA series - Page 365

6.2Troubleshooting
355
Display and Outputs
Digital Operator
Di l
d
Alarm Output
g
p
Display and
Alarm
Name
Alarm Code Output
Alarm Output
Al
arm
N
ame
ALO1 ALO2 ALO3
p
A.81
Absolute encoder
back-up error
(only if absolute
encoder is used)
OFF OFF OFF OFF
OFF: Output transistor is OFF
ON: Output transistor is ON
Status When Alarm Occurred
B
At power ON
Speed control
Cn-01 Bit 1 = 0
Speed control
Cn-01 Bit 1 = 1
When SEN signal turned
ON Cn-01 Bit 1 = 0
A
,C
A
,C
Position control
A
,C
Cause Remedy
A The following power supplied to the
absolute encoder all failed:
• +5 V supply
• Battery (ER6V C3)
• Internal capacitor
Follow absolute encoder set-up
procedures.
B Circuit board (1PWB) defective Replace Servopack.
C Absolute encoder malfunctioned Replace servomotor.
6