Alarm 0021 Communication Error(Servo)

Hello!
I have the same problem in my robot.

Kindly, kan you tell me how did you fix the problem?

With the XRC robots there is a servo system power supply. It's always to the left of the servo pack. There should be a green LED lit up on the power supply when the power is on. If the green light is not on check to see if there is 208 volts AC single phase coming into the servo power supply (two black wires on 1CN).

Hello Sir.

Thanks for your precious answer.

But i'm afraid that in my case, it also doesn't work.

When i turn the power on, it will be show the communication error 0021 [ sub code 50 ] with light on the " remote " button.

I tried to solve the problem lots of time.

It was failed, please i need your help...

Vui lòng cho tôi biết bạn đã khắc phục sự cố như thế nào?

Alarm 0021

Comunication Error (Servo)

[50]

!Turn ON Servo Power

Hello!

I have the same problem in my robot.

Kindly, kan you tell me how did you fix the problem?

If this only comes up when turn the servo power on, I would check the servo on light. If there is a short in the servo on light, the 24 volts gets pulled down as the servo power comes on and you will get this message.

Hello!

I have the same problem in my robot.

Can you tell me how did you fix the problem?

To left of the servo pack there is a small power supply for the servo system. There is a green LED labeled 5v. Is this on or off?

Do the following:

1.) Remove connector CN10 on the

WRCA01 circuit board and re-insert it

2.) Remove the terminal connector of

CN10 on the WRCA01 circuit board

and re-insert it.

3.) Remove connector CN05 on the

XCP01 circuit board and re-insert it

4.) Is the LED on the

WRCA01 circuit board lit?

5.) Remove connector CN50 on WRCA

circuit board and re-insert it.

6.) Remove connector 2CN on the

RCP01AAA unit and re-insert it

7.) Check the fuse for the

RCP01AAA unit

8.) Remove the connector 1CN on the

RCP01AAA unit and re-insert it