Chasswheel CW 4 FOUR X DL, Service Manual

Page: 11 / 26

DX-2
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5. PRESENTATION OF ELECTRICAL SYSTEM
General description
The nominal voltage of the electric system is 24 V for drive motors and actuator(s), the
lightning system voltage is 24 V . The power source of the system is two series connected
gel batteries, which are charged by a separate charger. There are four drive motors
and an actuator for balance adjustment. There are four driving motors and one actuator for the
sense of gravity.
Driving controller system
The driving controller of the wheelchair is
Dynamic Controls DX2 –system
, which consists
of the following parts:
- DX2-Power Module
, including power electronics, programmed values, limits
and lights.
-
Joystick Module DX2-REM550
, including the joystick, controls and a
socket for charger and programmer.
-
DX2-ACT Module
, including connecting points for actuator(s) and limits.
- Joystick Cable
, this is a cable between the Power Module and the Joystick
Module.
The connection of the driving controller
The wheelchair has four drive motors which are coupled crosswise. The right channel of
the controller is coupled to the motor circuit, which consist of a parallel coupled front
right and rear left drive motor. Correspondingly, the left channel of the controller is
coupled to the motor circuit, which consist of parallel coupled front left and rear right
drive motor. By that coupling arrangement the driving controller is made to suit the
chassis structure based on the turning of the axles. The driving technique of the
wheelchair differs from the driving technique of a two-wheel drive wheelchair. There are
many programming possibilities in the driving controller, of which some has to be installed
at the factory and the rest can be altered, when the wheelchair has to be adjusted to suit the user.