QM-7 SERIES SERVICE MANUAL
PAGE 3.3
JANUARY 2012
SUNRISE MEDICAL
Section 3
VR2 Remote Controller Display
Maximum Speed Indicator Ripples. This Indicates that the wheelchair is locked. To unlock the
wheelchair, deflect the joystick forwards until the control system chirps. Then deflect the joystick in
reverse until the control system chirps. Release the joystick, there will be a long beep. The wheelchair
is now unlocked. To lock the wheelchair, while the control system is switched on, depress and hold
the on/off button. After 1 second, the control system will chirp. Now release the on/off button, deflect
the joystick forwards until the control system chirps, and deflect the joystick in reverse until the control
system chirps. Release the joystick, there will be a long beep. The wheelchair is now locked.
This indicates that the chair is charging . The chair will be ready to drive as soon as the charger is
unplugged.
This indicates that all is well.
The control system is functioning correctly, but you should charge the battery as soon as possible. At
22 V, the red light starts to blink. Each bar represents a .5V value. The controller requires 18V to start
and a minimum of 16V to work once started
Indicates the wheelchair batteries are being charged with the offboard charger. You will not be able
to drive the wheelchair until the charger is disconnected and you have reset the control system by
switching off the power and then powering up again.
The Maximum Speed Indicator Ripples
The Maximum Speed Indicator Flashes
Battery Gauge is Steady
Battery Gauge Flashes Slowly
Battery Gauge Steps Up.
How to Lock or Unlock the Wheelchair
The control system has "gone to sleep" because the wheelchair has not been driven for a period of
time. The time period depends on the programming of the system. To re-start, reset the system by
switching off the power and then powering up again.
Make sure the Joystick is completely released (Joystick should be centered and/or nothing is pushing
the gimbale out of center). The control system safety circuits have been activated and the control
system has been prevented from moving the wheelchair. This indicates a system trip, i.e. the VR2
has detected a problem somewhere in the wheelchair's electrical system. Please refer to this Section
(VR2 Controller Diagnostics).
Battery Gauge Blinks Every 2.5 Seconds
Battery Gauge Flashes Rapidly