Page 62/169 AFNZPxxx – DUALACE2 NEW GENERATION – User Manual
6.4 Torque mode
In this mode the controller maintains the motor torque output at a constant value
for a given throttle position. This is similar to DC motors (in particular, series
wound DC motors) and provides a driving experience like a car. To prevent
excessive speed when the load torque is low, for example when driving down hill,
a maximum vehicle speed can be set.
6.5 Speed mode
In this mode the controller maintains the motor at a constant speed for a given
throttle position, as long as sufficient torque is available. Speed mode differs from
torque mode in that the torque value applied to the motor is calculated by the
controller based on the requested speed (determined by throttle position) and the
actual speed of the vehicle.
6.6 Protection and safety features
6.6.1 Protection features
DUALACE2 NEW GEN is protected against:
- Battery polarity inversion
It is necessary to fit a main contactor to protect the inverter against reverse
battery polarity and for safety reasons.
- Connection errors
All inputs are protected against connection errors.
- Voltage monitoring
Protected against battery undervoltage and overvoltage.
- Thermal protection
If the controller temperature exceeds 85 °C, the maximum current is reduced
in proportion to the temperature excess. The temperature can never exceed
105 °C.
Thermal cutback.
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