Yes that is the LS Override.
- LS is overtravel protection. - for example: if Joint hit obstacle (Cell surround or Overhead pipes for example), then LS switch fitted to that joint to cut off motor power if overtravel too close.
If LS activates during normal operation, then button needs to be pressed and held in, then motor power on and move robot until LS switch become good.
The LS switches should be visible (usually if fitted) around Joint 1 Circular Cast (Prevent overtravel for rotation of main body) and possibly Joint 3 (prevent overhead overtravel).
So you have a couple of things to look at on Monday:
- TB1 Connection.
- LS Existent - if so, check cables ok and not active/if not then reconfigure SW1 on 1BP board to mask.
- Set 9ZR jumper J5 for no use setting and remove front connections.
- Retry..............smile when working.....