Lenze G7 Series - Page 37

CAUTION!
Risk of burns from hot surfaces
Components can reach very high temperatures during operaon and can cause severe burns.
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Use personal protecve equipment.
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Wait for the surface to cool down suciently.
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Prevent contact with ammable substances.
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Do not exceed the maximum torques specied on the nameplate.
Motor protecon
NOTICE
Damage to property due to excessively high torques
If synchronous servo motors are subjected to excessively high torques, it can lead to demagnezaon.
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Do not exceed the maximum torques specied on the nameplate.
NOTICE
Damage to property due to excessively high load
Subjecng the motor to an excessively high load can lead to the premature wear of electrical and
mechanical components, even if the motor features overload protecon.
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Check the drive controller sengs.
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Reduce the load by extending the acceleraon mes.
NOTICE
Damage to property due to insucient motor protecon
Frequent switch-on exerts thermal stress on the motor. Consequently, fuses do not provide sucient motor
protecon and the motor can be damaged by the frequent switching.
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With an average switching frequency, use current-dependent motor protecon switches.
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With a high switching frequency, use built-in thermal detectors.
Installed thermal detectors are no full protecon for the machine.
If required, limit the maximum current and parameterize the drive controller so that it will be
switched o aer several seconds of operaon with I > I
N
especially if there is a danger of blocking.
Brakes must not be used as a safety element unless addional measures are implemented as well.
Uncontrollable disrupve factors, such as oil ingress, can result in reduced torque.
Brakes are only to be used as holding brakes for keeping the axes at a standsll or in the de-
energized state.
Brakes must not be used as service brakes.
If deviaons from normal operaon occur, e.g. increased temperature, noise or vibraon, determine
the cause.
4Diagnoscs and fault eliminaon ^ 51
If the fault cannot be remedied using one of the measures listed, please contact the Lenze aersales
service.
Safety instrucons
Residual hazards
37