Yaskawa DR2 Sigma Servo - Manual (Page 409)

6.2 Troubleshooting
397
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.70
Overload
ON ON ON OFF
OFF: Output transistor is OFF
ON: Output transistor is ON
Status When Alarm Occurred
B
,
C
, D
When speed reference
input
No servomotor
rotation
During normal
operation
At control power ON
D
, E
E
When servo ON (S-ON)
signal turned ON
A
, B, D
Cause Remedy
A Servomotor wiring incorrect or
disconnected
Check wiring and connectors at
servomotor.
B Encoder wiring incorrect or disconnected Check wiring and connectors at encoder.
C Load greatly exceeds rated torque Reduce load torque and inertia. Otherwise,
replace with larger capacity servomotor.
D Incremental encoder power not supplied
from Servopack.
Use the Servopack power supply for the
encoder.
E Circuit board (1PWB) defective Replace Servopack.
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.80
Absolute encoder
error (only if
absolute encoder
is used)
OFF OFF OFF OFF
OFF: Output transistor is OFF
ON: Output transistor is ON
6