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34 www.pridemobility.com Jazzy 1133 Owner’s Manual Rev B 03-03
Actuator Key and Actuator Lights (for optional equipment on some models)
Actuator keys and actuator lights are used for optional equipment such as power elevating seats or power elevating
leg rests. For specific operation of the actuator keys and actuator lights, contact your authorized Pride provider.
Horn Key
The horn key activates the horn.
Off-board Charger/Programming Socket
You may use an off-board charger to charge the power chair batteries through the 3-pin socket located on the front
of the VSI. See figure 27. If you use an off-board charger, the charger current should not exceed 12 amps. Contact
your authorized Pride provider for more information.
CAUTION! Only chargers with Neutrik NC3MX plugs should be connected to the onboard charger/
programming socket. See your authorized Pride provider for more information.
NOTE: The socket may also be used for reprogramming the VSI. Contact your authorized Pride provider for
more information.
Controller Connector
This connects the VSI to the power chairs batteries, motors, and motor brakes.
3-pin Charger Inhibit Connector
This connects the VSI to the onboard battery charger. This connection provides an inhibit that disables the VSI
when the battery charger is on. The charger inhibit connector is coded with colored dots. The dots are positioned so
that you align the flat side of the male connector with the flat side of the female connector before making the
connection.
CAUTION! Failure to properly align the connectors can result in damage to the controller, the
charger, and the connectors.
Thermal Rollback
The VSI controller is equipped with a thermal rollback circuit. The circuit monitors the temperature of the control-
ler, which roughly translates to motor temperature. In the event that the VSI controller becomes excessively hot
(above 140° F), motor current (amperage) is reduced. For every degree above 140°, the motor current limit is
reduced by .55 amps until the VSI controller reaches 158° F, at which time the current output is reduced to zero.
This reduces your power chairs power, which could also reduce your power chairs speed, and allows the elec-
trical components and motors to cool down. When the temperature returns to a safe level, your power chair re-
sumes its normal operation.
VIII. OPERATION