Digitax HD M75X Series Installation and Technical Guide
7
Issue Number: 5
1.11 Motor
The safety of the motor under variable speed conditions must be
ensured.
To avoid the risk of physical injury, do not exceed the maximum specified
speed of the motor.
Low speeds may cause the motor to overheat because the cooling fan
becomes less effective, causing a fire hazard. The motor should be
installed with a protection thermistor. If necessary, an electric forced vent
fan should be used.
The values of the motor parameters set in the drive affect the protection
of the motor. The default values in the drive must not be relied upon. It is
essential that the correct value is entered in the Motor Rated Current
parameter.
1.12 Mechanical brake control
Any brake control functions are provided to allow well co-ordinated
operation of an external brake with the drive. While both hardware and
software are designed to high standards of quality and robustness, they
are not intended for use as safety functions, i.e. where a fault or failure
would result in a risk of injury. In any application where the incorrect
operation of the brake release mechanism could result in injury,
independent protection devices of proven integrity must also be
incorporated.
1.13 Adjusting parameters
Some parameters have a profound effect on the operation of the drive.
They must not be altered without careful consideration of the impact on
the controlled system. Measures must be taken to prevent unwanted
changes due to error or tampering.
1.14 Electromagnetic compatibility (EMC)
Installation instructions for a range of EMC environments are provided in
this Guide. If the installation is poorly designed or other equipment does
not comply with suitable standards for EMC, the product might cause or
suffer from disturbance due to electromagnetic interaction with other
equipment. It is the responsibility of the installer to ensure that the
equipment or system into which the product is incorporated complies
with the relevant EMC legislation in the place of use.
Summary of Contents for Digitax HD M75 Series
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