1717
6 6 Electrical Electrical SystemSystem
ControllerController
The MOS chopper series represents a state-of-the-art answer to the needs of the 21st century. ToThe MOS chopper series represents a state-of-the-art answer to the needs of the 21st century. To
ensure that products remain on the market without running the risk of becoming technicallyensure that products remain on the market without running the risk of becoming technically
obsolete, the MOS series offers obsolete, the MOS series offers the following features:the following features:
–– Advanced techAdvanced technologynology
––
Economical costsEconomical costs
––
Maximum safetyMaximum safety
–– Maximum adaptabilityMaximum adaptability
–– Open to future technical innovationsOpen to future technical innovations
––
Optimum level of protectionOptimum level of protection
Basic design theoryBasic design theory
–– High-frequency MOS technologyHigh-frequency MOS technology
–– Real-time control over the internal and external components that influence the vehicle'sReal-time control over the internal and external components that influence the vehicle's
performanceperformance, with , with self-diagnoself-diagnosis of sis of the checking circuits themselvesthe checking circuits themselves
–– Stored Program Machine (SPC), where the hardware is completely separate from theStored Program Machine (SPC), where the hardware is completely separate from the
functions to be configured. The program is parametric and can easily be modified by the functions to be configured. The program is parametric and can easily be modified by the endend
useruser
––
Various chopper configurations can be selected, without the need for hardware modificationsVarious chopper configurations can be selected, without the need for hardware modifications
–– Future technology updateFuture technology updates are made easy fs are made easy for the useror the user
––
The communication protocol will continue to evolve, thereby offering increasing possibilitiesThe communication protocol will continue to evolve, thereby offering increasing possibilities
of interaction and expansion. For this reason, the series offers a standard dialogue modeof interaction and expansion. For this reason, the series offers a standard dialogue mode
with external systems, which allows interfacing with commercially available machines. Awith external systems, which allows interfacing with commercially available machines. A
range of individually designed control software is also offered with various prices andrange of individually designed control software is also offered with various prices and
features.features.
–– The controller meets IP51 requirements, providing excellent protection against spray (water,The controller meets IP51 requirements, providing excellent protection against spray (water,
acid) and the ingress of dust or small foreign particles. Access to the control logic is veryacid) and the ingress of dust or small foreign particles. Access to the control logic is very
simple and allows substitution or simple and allows substitution or replacereplacement.ment.
Steered wheel angle sensorSteered wheel angle sensor
–– The dual-motor drive is equipped with a steered wheel angle sensor that transmits angleThe dual-motor drive is equipped with a steered wheel angle sensor that transmits angle
signals to the electronic controller, thereby helping the motors apply differential control.signals to the electronic controller, thereby helping the motors apply differential control.
–– The SET STEER MIN and SET STEER MAX functions can be used to obtain the minimumThe SET STEER MIN and SET STEER MAX functions can be used to obtain the minimum
and maximum voltages of the steering potentiometer range.and maximum voltages of the steering potentiometer range.
Safety and protection featuresSafety and protection features
–– Battery polarity protection: the circuits must be constantly tested to avoid damage to theBattery polarity protection: the circuits must be constantly tested to avoid damage to the
power unit. It is power unit. It is necessary to fit a necessary to fit a main contactor controlled by the logic unit to protect againstmain contactor controlled by the logic unit to protect against
reverse battery polarity.reverse battery polarity.
––
Circuit connection protection: all inputs are protected against connection errors. TheCircuit connection protection: all inputs are protected against connection errors. The
contactor driver can withstand a load of 2 A and has overload protectioncontactor driver can withstand a load of 2 A and has overload protection
–– Thermal protection: when the controller temperature exceeds 85°C, the thermal protectionThermal protection: when the controller temperature exceeds 85°C, the thermal protection
function is triggered, which reduces the maximum current in proportion to the thermalfunction is triggered, which reduces the maximum current in proportion to the thermal
increase. The temperature can never exceed 95°C.increase. The temperature can never exceed 95°C.
––
Battery overdischarge protection: when the battery charge is low, the maximum current isBattery overdischarge protection: when the battery charge is low, the maximum current is
reduced in proportion to the reduced in proportion to the battery's charge.battery's charge.
–– External protection: the chopper effectively prevents ingress of dust, liquid and other foreignExternal protection: the chopper effectively prevents ingress of dust, liquid and other foreign
bodies to a degree of protection meeting IP51bodies to a degree of protection meeting IP51
––
Starting sequence protection: a precise sequence of operations is necessary before theStarting sequence protection: a precise sequence of operations is necessary before the
vehicle will start. Requests for drive must be made after closing the keyswitch, otherwise thevehicle will start. Requests for drive must be made after closing the keyswitch, otherwise the
vehicle will not start.vehicle will not start.
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