Delta ASDA-A3 Series User Manual page 526

ASDA-A3
AL060 Absolute position is lost
Trigger condition
and causes
Checking methods
and corrective
actions
How to clear the
alarm?
AL061 Encoder undervoltage
Trigger condition
and causes
Checking methods
and corrective
actions
How to clear the
alarm?
Revision December, 2017
Condition: losing number of revolutions because of low battery voltage or
loss of the power.
Causes:
1. Voltage level of the battery is too low.
2. The battery is replaced when the main power of the servo drive is off.
3. The battery is not installed when the absolute function is enabled.
4. Poor connection or disconnection of the battery power circuit.
1. Check if the battery voltage is below 2.8V; execute homing after
changing the battery. Please refer to Chapter 10 Absolute servo system
for more details about initializing the absolute coordinate system.
2. Do not change or remove the battery when the ASDA-A3 servo drive's
main power is off. To execute homing again, please refer to Chapter 10
for absolute coordinate initialization.
3. Please follow the instructions below:
(A) Install the battery.
(B) Check the connection between the battery power source and the
servo drive.
(C) Check the encoder wiring.
4. Connect or correct the wiring so that the battery power is supplied to
the encoder and then execute homing again.
(A) Check the encoder wiring.
(B) Check the connection between the battery box and servo drive.
Cycle power on the servo drive.
Condition: voltage level of the absolute encoder battery is lower than the
allowable value (3.1V).
Cause: voltage level of the battery is too low.
1. Check the panel to see if the battery voltage is less than 3.1V.
2. Measure the battery voltage and see if it is less than 3.1V.
If the voltage is too low, replace the battery when the main power is on.
The alarm is cleared automatically.
Troubleshooting
11
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