Yaskawa DR2 Sigma Servo - Manual (Page 412)

INSPECTION, MAINTENANCE, AND TROUBLESHOOTING
6.2.1 Troubleshooting Problems with Alarm Display cont.
400
Note An absolute encoder error (A.80) is given initially if a sum-check error (A.82) is generated
during operation.
The sum-check error (A.82) occurs after turning the SEN signal (or Servopack power supply)
OFF and back ON.
However, the sum-check error (A.82) does occur during operation if the host controller is re-
ceiving the S-phase signal (serial data).
D Display and Outputs
Digital Operator
Di l d
Alarm Output g p
Display and
Alarm Name
Alarm Code Output Alarm Output
Alarm Name
ALO1 ALO2 ALO3
p
A.83
Absolute encoder
sum-check 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
C
At control power ON
Cn-01 Bit 1 = 0
Cn-01 Bit 1 = 1
When SEN signal turned
ON, Cn-01 Bit 1 = 0
A , B
A
,
B
During operation
(see note)
A,
B
Cause Remedy
A • Battery not connected
• Battery connection defective Check and correct battery connection.
B Battery voltage below specified value.
Specified value: 2.8 V.
Install new battery and turn SEN signal (or
Servopack control power) ON.
C Circuit board (1PWB) defective Replace Servopack.
Note No alarm occurs at the Servopack when a battery error (A.83) is generated. The battery error
(A.83) occurs the next time the SEN signal (or Servopack) turns ON.
However, the battery error (A.83) can be read during operation if the host controller is receiv-
ing the S-phase signal (serial data).
6