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ASDA-A3

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Troubleshooting

AL020 Serial communication timeout

Condition: RS-485 communication error.

Trigger condition

and cause

Cause:

1. Improper setting for P3.004 (Modbus communication timeout).

2. Servo drive has not received the communication command for a long time and

has timed out (refer to P3.004).

1. Check and correctly set the value for the communication timeout parameter.

Checking method

and corrective action

2.

Check if the communication cable is loose or disconnected and make sure it is

correctly wired.

How to clear the

alarm?

DI.ARST

14

AL022 RST power error

Trigger condition

and cause

Condition: RST power cable is loose or there is no power. The error type of AL022

is a warning by default. To set AL022 as an alarm, you can set P2.066 [Bit 12] to 1.

Cause: RST power error.

Check if the RST power cable is loose or there is no power. For 1.5 kW (or below)

ASDA-A3 servo drives, this alarm occurs when all three phases are not connected

Checking method to the power supply. For 2 kW (or above) ASDA-A3 servo drives, this alarm occurs

and corrective action when one single phase is not connected to the power supply. Correctly connect the

power to the servo drive. If the issue persists, send your servo drive back to the

distributor or contact Delta.

How to clear the

alarm?

DI.ARST

AL023 Early overload warning

Trigger condition

and cause

Early overload warning.

1. Check if the motor is overloaded and refer to the corrective actions for AL006

for troubleshooting.

Checking method

and corrective action 2. Check if the value of P1.056 (Motor output overload warning level) is set too

low. If so, set the value higher, or set the value greater than 100 to disable the

warning function.

How to clear the

alarm?

DI.ARST

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Call +1(800)985-6929 To Order or Order Online At Deltaacdrives.com

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