Lenze MDFQA Operating Instructions Manuel d'utilisateur télécharger pdf (Page 11)

Safety instructions

Residual hazards

Lenze ¯ BA 33.0006 ¯ 3.0

Motor protection

¯ Installed thermal detectors are no full protection for the machine.

– If required, limit the maximum current, parameterise the controller such that it

will be switched off after some seconds of operation with I > I

, especially if

there is the danger of blocking.

– Installed overload protection does not prevent an overload under any

conditions.

¯ Installed brakes are no fail−safe brakes.

– The torque can be reduced due to disruptive factors that cannot be influenced,

e.g. by ingressing oil due to a defect shaft sealing ring on the A side.

¯ Fuses are no motor protection.

– Use current−dependent motor protection switches at average operating

frequency.

– Use installed thermal detectors at high operating frequency.

¯ Too high torques cause a fraction of the motor shaft.

– The maximum torques according to catalogue must not be exceeded.

¯ Lateral forces from the motor shaft may occur.

– Align shafts of motor and driving machine exactly to each other.

¯ If deviations from normal operation occur, e.g. increased temperature, noise,

vibration, determine the cause and, if necessary, contact the manufacturer. If in

doubt, switch off the motor.

Fire protection

¯ Fire hazard

– Prevent contact with flammable substances.

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Lenze MDFQA Operating Instructions Manuel d'utilisateur Page 11