Electrical System; Electronics Protection System - Invacare Mirage Operating Manual

10

Electrical system

10.1

Electronics protection system

The vehicle's electronics are equipped with an overload-protection system. If the motors are put
under considerable strain for a longer period of time (for example, when driving up a steep hill) and
especially when the ambient temperature is high, then the electronic system could overheat. In this
case the vehicle's power is reduced gradually until it finally comes to a halt. The Status Display
shows a corresponding error code (see chapter "Error Codes and Diagnostic Codes" on page
48). By switching the power supply off and back on again, the error code is cancelled and the
electronics are switched back on. It will take approximately five minutes until the electronics have
cooled down enough for the motors to restore full power again.
When the motors are stalled by an insurmountable obstacle, such as a high kerb, and the vehicle
driver allows the motors to strain against this hindrance without moving, the electronics will
automatically switch off after a maximum of 20 seconds to prevent the motors from being
damaged. The Status Display shows a corresponding error code (see chapter "Error Codes and
Diagnostic Codes" on page 48). By switching off and back on again, the error code is cancelled
and the electronics are switched back on.
If the motors are stalled by an insurmountable obstacle, and the vehicle driver allows the motors to
strain against this hindrance without moving, but then returns the joystick to a neutral position
before the electronics have a chance to register the error, and repeats this a few times, the
electronics may not activate the emergency shut-off. In this case, one or both of the circuit breakers
on the battery boxes may overheat and pop out. See the next section for information on re-
activating them.
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