Estun servo drive alarm A20 common fault analysis

Create Date: 2024-8-30 12:03:23|Source: Eston/ESTUN

1. Estun servo motor maintenance - overload alarm A04

1. The wiring of the servo motor is wrong or the wiring is leaking

(1) The U, V, and W phase wires of the motor are connected incorrectly

(2) Whether the insertion of the connector on the servo motor side is defective

2. The model of the servo drive and the motor does not match

Check the drive model and motor model to match the appropriate drive or motor

3. The mechanical load greatly exceeds the rated torque of the motor, and the monitoring UN003 (internal torque command percentage) shows a large value

(1) Reduce the load torque and momentum of inertia, and replace the large-capacity motor if not

(2) The mechanical wear is large or stuck, and the mechanical problem is solved

4. If it is a brake servo motor, the brake of the motor is loosened

(1) If the brake coil is not energized, check the brake control line

(2) The brake coil burns out

2. Estun servo motor maintenance - encoder alarm A10, A11

1. The encoder connector has poor contact or is not plugged in

Check the plug and reconnect it

2. The encoder cable is damaged

Check that the cable has been damaged by mistake

3. The hardware of the motor encoder is damaged

It can't be repaired and needs to be repaired. How to avoid it: When installing the motor, do not force the motor shaft or encoder parts

3. Estun servo motor maintenance - overcurrent alarm A12

1. There is an error or short circuit in the wiring between the servo driver and the servo motor

Check the wiring and make the correct wiring

Fourth, Estun servo motor maintenance - power-on drive is not realistic or only shows that the 'bb' motor is not running

1. There is no display for power-on drive

The wiring is wrong, and the control board is not powered, that is, L1C and L2C are not powered

2. The BB motor is not running

(1) The servo is not enabled

Enable the signal to the servo

(2) The drive is not electrified

The wiring is incorrect, and the driver board is not powered, that is, L1, L2, and L3 are not powered
Estun servo drive alarm A20 common fault analysis

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