UTILEV UT13PTE Service Manual Download Page 21

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Electrical

Electrical System

System

Controller

The MOS chopper series represents a state-of-the-art answer to the needs of the 21st century. To

The 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 technically

ensure 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 tech

Advanced technology

nology

–

Economical costs

–

Maximum safety

–

Maximum adaptability

–

Open to future technical innovations

–

Optimum level of protection

Basic design theory

–

High-frequency MOS technology

–

Real-time control over the internal and external components that influence the vehicle's

Real-time control over the internal and external components that influence the vehicle's
performance

performance, with

, with self-diagno

self-diagnosis of

sis of the checking circuits themselves

the checking circuits themselves

–

Stored Program Machine (SPC), where the hardware is completely separate from the

Stored 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 end

end

user

–

Various chopper configurations can be selected, without the need for hardware modifications

–

Future technology update

Future technology updates are made easy f

s are made easy for the user

or the user

–

The communication protocol will continue to evolve, thereby offering increasing possibilities

of interaction and expansion. For this reason, the series offers a standard dialogue mode

of interaction and expansion. For this reason, the series offers a standard dialogue mode
with external systems, which allows interfacing with commercially available machines. A

with external systems, which allows interfacing with commercially available machines. A
range of individually designed control software is also offered with various prices and

range 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 very

acid) 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 replace

replacement.

ment.

Steered wheel angle sensor

–

The dual-motor drive is equipped with a steered wheel angle sensor that transmits angle

The 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 minimum

The 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 features

–

Battery polarity protection: the circuits must be constantly tested to avoid damage to the

Battery 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 against

main contactor controlled by the logic unit to protect against

reverse battery polarity.

–

Circuit connection protection: all inputs are protected against connection errors. The

Circuit connection protection: all inputs are protected against connection errors. The
contactor driver can withstand a load of 2 A and has overload protection

contactor driver can withstand a load of 2 A and has overload protection

–

Thermal protection: when the controller temperature exceeds 85°C, the thermal protection

Thermal protection: when the controller temperature exceeds 85°C, the thermal protection
function is triggered, which reduces the maximum current in proportion to the thermal

function 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 is

Battery 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 foreign

External protection: the chopper effectively prevents ingress of dust, liquid and other foreign
bodies to a degree of protection meeting IP51

bodies to a degree of protection meeting IP51

–

Starting sequence protection: a precise sequence of operations is necessary before the

Starting 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 the

vehicle 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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