ERROR :(-1602) limit switch is disconnected

[pawelkaczmarek]

Good day. Does anyone of robot-forum know what that error mean? I've tried to run my robot but scince this mornnig on teach pad i can read only this line. Robot is working with injection molding maschine Fanuc roboshot S-2000. The arm of robot goes down when mould is open on programed distance, and is taking product from the mould useing vacum. Plese help. I'll be very grateful.
Best regards
Pawel

[roboperson]

The limit switch at the base of the robot has tripped and is sitting in the tripped postion, or has gone bad. Under normal conditions, you would have to push the button on the HP board to get motor power, then move it off, or break release JT1 (becareful is is joint 1 so an axis dont fall unexpectedly) and then pusy it off the limit switch. If the switch is not tripped, then it has gone bad. You will either have to change it or jumper it.