Daktronics S SERIES - Manual (Page 7)

3 MOTORIZED BATTEN HOISTS
2.
3. Control of all hoists is possible from the S Series controller or hand-held
pendant controller, located such that a clear line of site can be achieved.
4. The controller contains the main system disconnect, master control contactor,
control voltage power supply and control buttons.
5. Please see the Controls Operating portion of this manual for the operating
procedures.
Warning:
If it is necessary to operate a hoist from a location
where the operator’s view of the moving load is
obstructed, a second person must be used to observe
the load and communicate to the operator.
The Vortek hoist units are mounted on structural steel, usually at the top of the
stage house (refer to your project installation drawings for exact placement of the
hoist units). The gear motor, helically grooved cable drum, support bearing and
frame structure are all factory assembled and tested. On each hoist assembly
is one set of hard struck limit switches. These limits are the upper ultimate limit
and lower ultimate limit. These limit switches are adjusted by factory-trained
personnel at the factory test and are fine tuned on site by the installer during
installation and commissioning of the system. There is also one set of over travel
limits. Each hoist assembly is also equipped with our PATENTED LOAD BRAKE,
a unique safety feature provided exclusively by Daktronics. This brake is a
fully-mechanical, always engaged drive-through secondary brake. This greatly
reduces any possibility of a loaded batten to descend uncontrolled.
1. The hoist power panel assembly is located at the end of each Vortek motorized
hoist (the blue box at the end where the HV and LV cables plug in). There is a
resettable circuit breaker located at each power outlet on the High Voltage
wireway that also serves as a safety disconnect. The rated twist-locking plug on
each unit also acts as a main (local) high voltage disconnect.
The Vortek S Series Hoist System consists of three basic parts:
1. The S Series controller - where the operator controls the system.
2. The Vortek hoist wireways - connect the controls to the
hoists themselves.
3. The Vortek hoist units - completely self-contained electrical and
mechanical equipment.