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NIGHT SCAN VERTICAL, VERTICAL COMPLETE, AND VERTICAL HDT
OPERATING INSTRUCTIONS
TP-4836201-H
MAY 2021
5.10.3
Wiring DC Source Power to the Mast Control Circuit
The mast control system requires DC power regardless of what power is required by the lighting
circuits (AC or DC). Source DC power is provided by the installer from the vehicle battery. The
mast system will operate with 12VDC or 24VDC source power.
The base board contains a 20 amp fuse to protect the mast control circuits from over-current
events. The installer is responsible for providing the means to remove/isolate power from the
mast and permit the operator to follow proper lock-out tag-out procedures for maintenance or
troubleshooting.
Route the DC power cable into the control box. Attach the 0.709 inch (18 mm) inside diameter
ferrite (shipped loose with the mast) around the Control/DC cable as it enters the control box.
This ferrite provides electromagnetic interference (EMI) filtering.
Power cables for the mast controls are provided by the installer. The cables must:
• Be type SJOOW or equivalent
• Be 10 AWG (or 6 mm
2
) conductors
• Have a maximum length for acceptable voltage drop of 70 feet (21 meters)
Connect the DC battery power to the +VIN (red or white) and COM (black) connections on
terminal block TB4 on the lower left side of the base board. The source must be capable of
delivering the maximum current as defined in the Technical Data table.
Note: The mast, RCP, and control box assemblies must be installed and wired prior to power-up.
Failure to do so will result in errors and could damage the unit.
5.10.4
Wiring Source Power to the Lighting Circuits
The lighting circuits consist of two (2) independently powered circuits: left and right. Depending
on the light package installed on the unit, the source power for the left and right light circuits will
change to match the light fixtures. Be sure to confirm the installed light fixture voltage
requirements before applying light power to avoid damaging equipment.
It is important to calculate the current draw for the wires in each lighting circuit. To calculate the
current draw for the wires:
• Divide the total watts of the entire mast unit by two (since there are two circuits).
• Divide the result by the voltage.
• This final result is the amperage required for each side light circuit.
Summary of Contents for Night Scan Vertical 4.3-15
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