Panasonic AW-HE20KP Operating Instruction page 90

Limitation Setting

This establishes the up, down, left and right limit settings of the pan-tilt head.
First, move the pan-tilt head to the desired limit position using the control pad and its buttons.
When the position is determined, select the desired "Set" setting from the list of settings below to set the position.
(Select "Release" to release the setting.)
Tilt Up Use this to save the current position as the upward limit.
Tilt Down Use this to save the current position as the downward limit.
Pan Left Use this to save the current position as the leftward limit.
Pan Right Use this to save the current position as the rightward limit.
When "Set" or "Release" is selected, the tally lamp of the unit blinks.
When a limiter is set, it blinks red once; when a limiter is released, it blinks red twice.
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