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Support /  Control boxes - Dynamic / PG /  Trouble shooting

Dynamic - Trouble shooting


Dynamic - Fault trace

If the little green LED (1) is blinking it indicates a fault. By counting the number of "blink" you can look in the table below to get information of what type of fault it could be.

If the LED (2 and 3), that are buttons for lights, blinks, it often indicates that you by mistake activated the lights function, which is normally not mounted on the chair. This is fixed with a reprogramming of the electronics with the Wizard software. How to do it!



Blink codes
Type of fault
Chair stays?
Linked faults?
Reserve drive mode?

1
DX-module
Depends on module

Depends on the type of error

Depends on the type of error

DX-module

Usually you have unintentionally touched the joystick before the battery indicator have stabilized. It could also be that the motors are disengage. See the manual! If you have the model DX900 Compact, it could be that the seatlift is not in it´s lowest position. Lower the seat to it´s lowest position!

This can also indicate that some module in the Dynamic system have a malfunction and needs to be replaced. Check the green status light located at each module . If any of these are flashing it means it´s brooken and needs to be replaced.


2
DX-accessory
Depends on the type of error

Depends on the type of error

No

DX-accessory

This indicates that an accessory connected to the chair is brooken. Not for wheelchairs with speedreducement when the seatlift is raised, this indicates that the seatlift is not in it´s lowest position.


3
Left motor (M1)
Yes

Yes

No

Left motor (M1)

This indicates a brake or a shortcut on the wire between the Power Module´s M1 connector and the motor, or a broken motor.

Check this by disconnecting the M1 connection at the Power Module and messaure the resitance between the outer pins (1 and 4) to look for a brake or a shortcut.


4
Right motor (M2)
Yes

Yes

No

Right motor (M2)

This indicates a brake or a shortcut on the wire between the Power Module´s M2 connector and the motor, or a broken motor.

Check this by disconnecting the M2 connection at the Power Module and messaure the resitance between the outer pins (1 and 4) to look for a brake or a shortcut.


5
Left parking brake
Yes

Yes

No

Left parking brake (M1)

This indicates a brake or a shortcut on the wire between the Power Module´s M1 connector and the parking brake, or a broken parkingbrake.

Check this by disconnecting the M1 connection at the Power Module and messaure the resitance between the outer pins (2 and 4) to look for a brake or a shortcut.

Also check that lever for disengageing the brakes sets the motors back to brake mode when the lever is switched back to drive mode.


6
Right parking brake
Yes

Yes

No

Right parking brake (M2)

This indicates a brake or a shortcut on the wire between the Power Module´s M2 connector and the parking brake, or a broken parkingbrake.

Check this by disconnecting the M2 connection at the Power Module and messaure the resitance between the outer pins (2 and 4) to look for a brake or a shortcut.

Also check that lever for disengageing the brakes sets the motors back to brake mode when the lever is switched back to drive mode.


7
Low battery
Yes

Check battery and charger

Too low battery voltage

This indicates that the battery voltage is too low for driving the wheelchair. Charge the batteries and check the status light on the charger indicates "charging".

If the problem remains, messaure the battery voltage by the poles, both when the charger is connected and disconnected. . If there is a big difference between the voltage the batteries are probably bad and needs to be changed. Also check the wires and the pool connectors.


8
High battery
Yes

Check battery and charger

För hög batterispänning

This indicates that the battery voltage exceeds 32V. Normally this can only occur during charging and indicates that the charger is broken.


9
BUS cabel
Yes

No

Yes

CANL-fault

Indicates a problem( brake or shortcut) in the CANL-wire in the DX-bus cable wich leads to communication errors between the controlbox and the power module. The DX system will still work in "reserve drive mode", but the problem should be identified as soon as possible and fixed. Most likely the reason is a damage BUS cable between the controlbox and the power module.


10
BUS cable
Yes

Yes

Yes

CANH-fault

CANH-wire in the i DX-BUS cable is used for both communication between modules and as a wire for a "KILL" signal. The "KILL" signal is "call" to all modules to enter a specified "safe mode" . The signal is given by connecting the CANH- wire to battery (+) or battery (-). The signal can be given manually by an emergency button or given automatically from a module that discover a fault and therefor shuts the system off. This means that a CANH- fault could be caused by a number of different types of faults.

The DX-systemet will if possible go into a "reserve drive mode".


11
Overload
Yes

Yes

No

Overload

If the current to the motors constantely exceed the preprogrammed value in "stall time out", the wheelchair will stop and the staus light will show 11 blink. To reset, the wheelchair needs to be restarted.


12
Compability fault
Yes

Yes

No

Compability fault

This indicates compability fault between the different modules in the system. This can not occure during driving of the wheelchair.



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