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SCENECONTROL 100 OPERATING INSTRUCTIONS
LIMIT SWITCHES
End-of-travel limits
Each axis is equipped with end-of-travel limit switches. End-of-travel limits are classified by their function, either
as normal limits, or overtravel limits. The normal limits stop motion in the selected direction, but permit motion in
the opposite direction. Each normal limit is backed up by an overtravel (or ultimate) limit; striking an overtravel
limit will cause the starter control power be cut off, preventing all motion of the winch. This is not a normal
situation, and a careful inspection of the winch must be conducted to determine the reason an overtravel limit
switch was activated. A maintenance procedure is required to clear this condition.
Both normal limits and overtravel limits are tied into the system control in all modes of operation, whether
operating from the main control system or from the maintenance controls on the motor control cabinet.
Limit switch types
Limit switch functions can be accomplished either with direct-struck limit switches, or with rotary limit switches.
Rotary limit switches are mechanically coupled to the winch drive mechanism. Each rotary limit switch has four
elements (up overtravel, up, down, and down overtravel). Direct-struck limit switches are struck by a piece of the
driven mechanism (e.g. a moving drum flange, or a cam mounted on the counterweight arbor, cable clew, or lift
guide).
WALL-MOUNT CONTROL STATION
The SceneControl 100 wall-mount Control Station is the main control point for the motorized rigging system. It
contains the following controls:
POWER keyswitch - Used to turn the control
system power on or off. Key can only be
removed when switch in the off position.
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lay screen.
EMERGENCY STOP - red latching mushroom-
head button– pushed in to initiate an emergency
stop condition, pulled out to release and enable
normal system operation.
UP, DOWN, and GO TARGET buttons -
momentary-action buttons which are pushed
and held to execute an action, previously
selected on the disp
SPEED - spring-return-to-center joystick control,
used to speed up or slow down the execution of
an action (variable-speed systems only).
DISPLAY - the touchscreen display contains the
control selections and status displays to operate
the system. Following sections of this manual
detail operation of the system through the use of
the display screen pages.
