Guard Stop State

AndrewC

Hi there, I'm working with a manufacturing robot and I have some problems with guard stop state. Every time I blocked the light screen the robot will be in guard stop state, and once I get out of the light screen the guard stop state would be removed. But sometimes the guard stop state still remained, it happened when I get in and out of the light very frequently. I checked the safety circuit, it's closed once I got out of the light screen, but the robot was still in the guard stop state. I'm wondering what caused this issued and is there any solution for this?

AndrewC

AndrewC

Normally I got out of the light screen it would remove the guard stop state and went in motors off, then I give the robot motor on and start signals through plc.