Pride Jet3 Ultra Owner's Manual page 32

VSI CONTROLLER
The electronic controller is what you use to operate your power chair. It takes the battery voltage and sends it to the
appropriate system. The electronic controller enables you to move the power chair, as well as monitor battery charge,
electronic controller functions, and the condition of your electrical system. The VSI controller is an integral electronic
controller. All of the electronics necessary to operate the power chair are contained in one module. See figure 22. Typically,
the VSI is mounted to one of the armrests and is connected to the motors, batteries, and the onboard charger on the power
base.
The controller supplied with your power chair has been pre-programmed to meet the needs of the end user. The program
is set using either a personal computer with software provided bey the controller manufacturer or with a hand-held pro-
grammer, also provided by the controller manufacturer.
WARNING! The controller program can affect speed, acceleration, deceleration, and braking. But
if it is programmed incorrectly or outside of the safe limits as determined by your healthcare
professional, it can create a dangerious situation. Only the power chair manufacturer, an authorized
representative of the manufacturer, or a trained service technician should program the controller.
The VSI consists of:
1. joystick
2. keypad
3. off-board charger/programming socket
4. charger inhibit connector
5. battery connector
6. motor connector
7. motor connector
Joystick
The joystick controls the direction and speed of your power chair. When you move the joystick from the neutral (center)
position, the electromagnetic brakes release and allow your power chair to move. The farther you push the joystick from
its neutral position, the faster your power chair moves. When you release the joystick and allow it to return to the neutral
position, you engage the electromagnetic brakes. This causes your power chair to decelerate and come to a complete stop.
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V I I I . O P E R A T I O N
Figure 22. VSI Controller
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