12 Volt Internal Combustion Engine Forklifts - Motorola VC70N0 Product Reference Manual

12 Volt Internal Combustion Engine Forklifts

NOTE The vehicle computer contains an Ignition Sense feature that detects when the ignition switch is turned off
and shuts the vehicle computer down after a preprogrammed timeout. This feature allows the operator to use
the vehicle computer for a predetermined time period after the ignition switch is turned off, then shuts the
vehicle computer down automatically to prevent over-discharge of the forklift battery. The timeout period is
adjustable by the user (see
draw of a suspended vehicle computer is approximately 500mA. When the vehicle computer shuts down
using the Ignition Sense feature, current draw is reduced to approximately 5 mA. This feature provides the
automatic shutoff functionality of an external relay, without requiring an actual relay and has the added benefit
of allowing the user to work for a preset time period before shutting down.
All power wiring must use the supplied power cable.
•
Fuse:
•
• one 3AB, 15A, 250V, FST BLO fuse - 9-60V DC
Keep the path between the battery and the vehicle computer as short as possible, and away from any part of
•
the ignition high tension system.
Ignition Switch
Vehicle
Battery
Important: If your vehicle is not equipped with an ignition
switch, connect the yellow wire directly to the vehicle's
positive source. Failure to comply, will not enable the
computer operation.
Wiring Diagram
Figure 2-11
You can use your old VC5090 power cable. When employing this option, use VC5090 Bridge Cable,
PN 25-159553-01. You must also replace the fuses on the red and black wires of the old cable with the new fuses
supplied with the bridge cable kit.
NOTE See the vehicle Owner's Manual for specific wiring information.
Disconnect the vehicle battery.
1.
Connect the red wire to the vehicle's positive power source. Connect the black wire to the vehicle's negative
2.
power source.
Connect the green wire to the vehicle's ignition switch. If you do not plan on using the Ignition Sense feature,
3.
connect the green wire to the vehicle's positive power source.
Ignition Sensing on page 3-22
Yellow
Red
15A Fuse 9-60V DC
Black
Installation 2 - 11
for setting the timeout value). The normal current
Power Cable
25-15951-01
9-60V DC
VC70