IAI RoboNet Operation Manual page 376

Code Alarm name
0ED Absolute encoder
error (1)
0EE Absolute encoder
error (2)
0EF Absolute encoder
error (3)
356
Cause: [1] When the power was reconnected following the completion of an absolute
reset, the current position changed due to an external factor or other cause
occurring while the controller was communicating with the absolute unit.
[2] When an absolute reset was performed, the current position changed due to
an external factor or other cause occurring while the controller was
communicating with the absolute unit.
Action: [1] When the detail code is H'0001:
Turn off the power and make sure the actuator is not receiving vibration,
etc., and then turn the power back on.
[2] When the detail code is H'0002:
Perform the home return operation after making sure the actuator is not
receiving vibration, etc.
Cause: [1] The power was turned on for the first time after the battery connection.
[2] When the detail code is H'0001:
The battery voltage dropped to a level where the encoder counter in the
absolute unit could no longer be retained.
[3] When the detail code is H'0002:
The encoder connector was unplugged during a power outage, or the
encoder cable was disconnected.
[4] When the detail code is H'0003:
A relevant parameter was changed.
[5] When the detail code is H'0004:
The battery voltage dropped to 3.1 V.
[6] When the detail code is H'0005:
No battery is connected.
Action: If [1], [2] or [4] is suspected, perform an absolute reset by following the specified
procedure. (Refer to the absolute reset method in 4.5.)
[3] or [5]: Supply power for at least 48 hours to fully charge the battery, and then
perform an absolute reset.
* It takes 72 hours to fully charge the discharged battery.
[6] Check the battery connection.
Cause: The current value changed at a speed equal to or greater than the specified
speed due to an external factor or other cause occurring when the power was
cut off.
Action: Change the applicable settings in the simple absolute unit and take other
measures to prevent the actuator from moving at or above the specified speed
while the power is cut off.
If the battery retention time has an ample allowance, increase the specified
motor speed.
(Refer to 4.2 in "Startup")
If this error has occurred, perform an absolute reset according to the specified
procedure.
Part 3 Maintenance
Cause/action