44 A255 Robot Arm User Guide
99-04-23
Check the Live-man Switch
This procedure checks the teach pendant live-man switch to verify that it works.
Note: You must hold the live-man switch with reasonable but not excessive force
while you press an axis key for the duration of a robot move. Too little or
too much force on the live-man switch breaks the e-stop circuit and
removes arm power.
Before you begin, ensure that you:
• Have connected the teach pendant.
• Have control at the teach pendant. If not,
—At the ash prompt, type pendant
• Have a motion screen at the teach pendant. If not,
—At the teach pendant, press ESC until you return to the Application screen.
Press F1 (edit), then press F3 (motion).
1. While holding the live-man switch and pressing an axis key during a robot
move, release the live-man switch.
a. After releasing the live-man switch, you should hear a series of clicks as
the arm brakes engage. At the same time, arm power is shut off. Check
that the LED in the arm power switch is not lit.
b. Restore arm power by pressing the arm power switch on the front panel of
the controller.
2. While holding the live-man switch and pressing an axis key during a robot
move, squeeze the live-man tightly.
a. After tightly squeezing the live-man switch, you should hear a series of
clicks as the arm brakes engage. At the same time, arm power is shut off.
Check that the LED in the arm power switch is not lit.
b. Restore arm power by pressing the arm power switch on the front panel of
the controller.
3. Without applying any pressure to the live-man switch, press an axis key. The
arm should not move.
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