V I I . O P E R A T I O N
VSI ELECTRONIC CONTROLLER
The electronic controller is what you use to operate your power chair. 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 electronic controller is an integral electronic controller.All of the electronics necessary to operate the power chair are contained in one module. See figure 30. Typically, the VSI is mounted to one of the armrests and is connected to the motors and batteries at the power base.
The controller supplied with your power chair has been
WARNING! The controller program can affect speed, acceleration, deceleration, and braking. If it is programmed incorrectly or outside of the safe limits as determined by your healthcare professional, it can create a dangerous 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.
4. actuator connector (optional)
5. controller 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.
WARNING! If your power chair begins to move in an unexpected manner, immediately release the joystick. Unless
the joystick is damaged, this action Figure 30. VSI Controller should stop your power chair.
Keypad
The keypad is located in front of the joystick. It contains keys necessary to operate your power chair. See figure 31.
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