SIGMATEK 074.00660, Power Installation Manual

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Sigmatek FDD Sizes 7 to 9 Power Installation Guide
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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 the relevant Power
Installation 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.