Wiring Optional Enable Circuit; Secure Wiring And Attach Cover - Will Burt Night Scan Powerlite Operating Instructions Manual

NIGHT SCAN POWERLITE, POWERLITE XTREME, AND POWERLITE HDT
OPERATING INSTRUCTIONS
5.7.5

Wiring Optional Enable Circuit

Some safety standards require preventing operation of the mast unless other conditions are first
met. An example might be having the parking brake set. This can be accomplished by inserting
an isolated contact in series with the stop circuit of the "E-Stop" button. Inserting these contacts
in line with the wire connected to pin J4-7 on the base circuit board breaks continuity and will
inhibit operation of the mast and prevent operation until the parking brake is set. After use, and
properly stowing the mast, when the parking brake is released, the mast is again prohibited from
energizing until the parking brake is set.
Note: Using this parking brake feature is the same as pushing the E-stop button. Power to the
control is opened, the mast immediately exhausts air, and the mast comes down without regard
to the proper RCP alignment (stowing to the home position). The parking brake should not be
released until the mast is safely (and automatically) stowed by the controls.
5.7.6

Secure Wiring and Attach Cover

8. Secure all loose wires with wire ties.
9. Attach the 0.709 inch (18 mm) inside diameter ferrite (shipped loose with the mast) around
the Control/DC cable as it enters the base. This ferrite provides EMI (electromagnetic
interference) filtering.
10. Once all wiring connections are complete, replace the base cover and tighten the three
mounting screws.
PAGE 44 OF 98 TP-4723701-U
MAY 2021