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Troubleshooting

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ASDA-A3

14

AL051 Motor parameter automatic identification error

Trigger condition

and cause

Condition: an error occurs when the Motor Parameter Identification Wizard function

is used.

Cause: when the motor is executing the Motor Parameter Identification Wizard

function, this alarm is triggered if the friction is too large causing the motor unable

to run, or the resolution, magnetic pole, or magnetic pole pitch is in error.

1. Check if PM.003, PM.004, and PM.045 are set correctly according to the

specifications.

2. Make sure the motor can operate properly.

3. Check if the friction between the motor and mechanical part is too large.

4. Check if the feedback signal is abnormal. Use the software scope and select

“Feedback Position [PUU]” as the input signal for the channel to monitor

Checking method

whether the feedback value is correct.

and corrective action 5. Check for interference causing pulse leakage.

6. If there is interference, check the following items:

How to clear the

alarm?

(a) Check if the motor is properly grounded. Make sure the ground end

(green) of the power cable is grounded to the servo drive heat sink.

(b) Use shielded cable for the feedback signal cable. Make sure the signal

cable is separated from the power supply or any high-current cables to

avoid interference.

DI.ARST

AL052 Initial magnetic field detection error

Condition:

1. The initial magnetic field detection is not complete because the motor moves

by more than 1/3 pole pair distance or pole pitch during the detection.

Trigger condition

and cause

2. When the servo is on, the servo automatically detects the magnetic field.

If the detection is not complete in 4 seconds, this alarm is triggered.

3. The motor has not released the brakes or is running unevenly, or the set

screw are not removed from the mechanical parts, causing the machine

unable to operate.

Cause: when you choose not to install the Hall sensor (set PM.003.Y to 0 for not

using the Hall sensor), the servo automatically detects the magnetic field when

Servo On. This alarm is displayed when the servo cannot detect the magnetic field.

14-30

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