The gripper's E-stop error comes back right after I clear it

[PCrnjak]

Which product?

Other, or more than one

Your question

Asked often on Discord; posted here with the answer so it can be found.

After a gripper E-stop, I send Send_Clear_Error (or #Clear over UART), but the E-stop error is back at once. The gripper will not move again. Same on the SSG-48 and the MSG.

What have you tried?

SSG-48 on Spectral Micro firmware 107; MSG on STEPFOC firmware 108.

[PCrnjak]

The error comes back at every control cycle for as long as the last gripper command carries the E-stop bit, so a clear seems to do nothing. This is known issue KI-1 in both gripper manuals.

To clear it:

1. Send a gripper command with the E-stop bit at 0 and the action bit at 0 (over UART: #Gripstop 0).
2. Then clear the error.

Details: clearing errors in the SSG-48 manual and the MSG manual.