Delta ASDA-A3 Series User Manual page 1184

ASDA-A3
AL060 Absolute position is lost
Checking method
and corrective action
How to clear the
alarm?
AL061 Encoder undervoltage
Trigger condition
and cause
Checking method
and corrective action
How to clear the
alarm?
AL062 Number of revolutions of the absolute encoder overflows (issued by encoder)
Trigger condition
and cause
Checking method
and corrective action
How to clear the
alarm?
AL063 Linear scale signal error
Trigger condition
and cause
Checking method
and corrective action
Check if the battery voltage is below 2.9V. Re-establish the absolute origin
1.
position after replacing the battery.
Do not replace or remove the battery when the servo drive's main power is off.
2.
Follow these instructions:
3.
(a) Install the battery.
(b) Check the wiring between the battery box and the servo drive.
(c) Check the encoder wiring.
Ensure the wiring is correct so that the battery power is supplied to the
4.
encoder and then re-establish the absolute origin position.
Connect or reconnect the wiring so that the battery power is supplied to the
encoder and then re-establish the absolute origin position. Refer to Chapter 10 for
more information on the absolute servo system.
Condition: voltage level of the absolute encoder battery is lower than the rated
value (3.1V).
Cause: voltage level of the battery is too low.
Read the battery voltage with monitoring variable 26h to see if it is below 3.1V.
1.
Measure the battery voltage to see if it is below 3.1V.
2.
If the voltage is too low, replace the battery when the servo drive's main power is On.
The alarm is cleared automatically when the voltage level is higher than 3.1V.
Condition: the number of revolutions of the absolute motor exceeds the range of
-32768 to +32767.
Cause: motor's rotation cycle exceeds the allowable range.
Check if the number of revolutions of the motor during operation is within the range
of -32768 to +32767. If not, re-establish the absolute origin position.
Cycle power on the servo drive.
An error occurred to the linear scale original signal.
Check if the linear scale and read head are installed correctly, and then set
DI.ARST to On or cycle power on the servo drive.
If the issue persists, send your servo motor back to the distributor or contact Delta.
Troubleshooting
14
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