Daktronics Scoreboard Dual Hoist - Manual (Page 9)

Push Button Controller 5
Section 3: Push Button Controller
3.1 Description
The Daktronics S Series Controller with leveling is a special 2-hoist set designed to work together as
one unit to lift a lightweight scoreboard. The S Series Controller with leveling are similar to the S Series
controls. The MCC contains a “LEVEL ADJUST” switch for each Vortek hoist on the system, a main “Power
On” key switch, “RAISE” and “LOWER” buttons, an “Emergency Stop” button located on the bottom
of the MCC, and indicator lights for “POWER ON”, “OVERTRAVEL FAULT”, “MAJOR LEVEL FAULT”,
and “LEVEL LOW FAULT” lights for each hoist. A lockable main power disconnect handle will also be
accessible on the front of the MCC for the removal of all power from the system . The optional handheld
pendant controller will contain “REMOTE/LOCAL” to the desired position and a locking “Emergency
Stop” buttons along with indicator lights for “ACTIVE” and “Emergency Stop”. The handheld pendant
should be used where proper Line-of-Site is not feasible from the location of the MCC.
Only trained and authorized personnel should be permitted to operate the hoist system. Unauthorized
use, alteration, or use of the hoist system for purposes other than those for which it was designed may
cause injury to persons, damage to the hoist, or create conditions which could lead to fatalities. All
proper safety considerations must be observed.
3.2 Keep Load Levels Aligned
If the hoisting system is operating two (2) hoists to pick up one load there must be means to adjust the
level of either hoist to match the other in the event that they become misaligned. If this happens, one
hoist could possibly see more load than its intended capacity.
3.3 Power up
Turn on the main disconnect switch located on the front of the master control cabinet and then turn
the key switch on. The green power light should now be
illuminated. If the green power light does not illuminate,
check to make sure that the E-Stop buttons are not pressed
(Figure 1).
If the red light stays illuminated, then one of the over travel
limits has been engaged, please contact Daktronics for
instructions on resolving this issue.
3.4 Basic Hoist Operation
The MCC is the single point of operation for the Daktronics
S Series control system.
There is one master “RAISE” and “LOWER” button located
on the MCC along with an “LEVEL ADJUST” selector switch
for each hoist on the system. There is an E-Stop button
located on the bottom of the MCC as well.
To raise a hoist press and hold the “RAISE” button. The hoist will then run at full speed in the up
direction. The hoist will run until the button is released and/or the hoist reaches its upper hard struck limit
switch.
Figure 1: S Series Controller