MH5 can't start

Hi Everyone, have a nice day.

I got problem with MH5LF/FS100. When I turn the power on, the controller keeps restart.

Do you have any idea can help me with this? Thanks so much.

Quote from Robodoc

There is a short in the 24 volt circuit. Something with the servo on (like the servo on light if you have one).

Thank you,

Last week, I tried to power on and it can start. I ran few minutes and alarm 20 (communication error) was popping up. Then after few times restart controller -> can't turn on power. CPU light alarm on, there was no power in SERVO PACK.

I have replaced the SERVO PACK and CPU unit with another good controller but the problem still there.

I think this week I will replace the power supply to see.

Thanks.