DNR Sunset Manuel de l'utilisateur - Page 14

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Sunset User's Manual

3.3 Electromagnetic Brakes

Your power wheelchair comes with an Electromagnetic Brakes., i.e. an automatic

magnetic disc safety brake which is also known as Fail-Safe brake.

The Electromagnetic Brakes are automatic and work when the power wheelchairs is ON

but in a steady state (i.e. Joystick is released to the center position), even when the

power wheelchair is on a slope. The Electromagnetic Brakes will also be set whenever

the power wheelchair is OFF, but the motor release levers are in the engaged (vertical)

position.

3.4 Thermal Protection

Your power wheelchair controller is equipped with a safety system called thermal

rollback. A built-in circuit monitors the temperature of the controller and motors, the

controller reduces the motor voltage and the speed of the power wheelchair. The

reduction of the speed allows the electrical components to cool down. Although your

power wheelchair will resume its normal speed when the temperature returns to a safe

level, we recommend that you turn the power off and wait for 30 seconds before

restarting to allow the components to cool down if you find that you have lost speed

suddenly.

4.1 Charger

The charger is an AC to DC switching-circuit designed Li-ion used charger. Best apply to

24V Li-ion battery. Pre-charge, constant current and constant voltage charging mode

designed with this charger.

Warning! Do not operate your power wheelchair in manual

mode on a slope.

4. Battery and Charger