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1 motor protection, 2 installation in compliance with emc – Lenze 8615E User Manual

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4.2.1 Motor protection

The units do not have a full motor protection.
For monitoring the motor temperature PTCs or thermal contacts
can be used.
The connection possibilities are shown on page 28.

When using group drives, a motor protection relay is required for
each motor.

When using motors which do not have a suitable insulation for
inverter operation:

- Connect motor filters for protection (see page 43). Please

contact your motor manufacturer.

Please note:

These frequency inverters generate an output frequency of up to
480 Hz when set correspondingly. The connection of a motor which
is not suitable for this frequency may result in a hazardous
overspeed.

4.2.2 Installation in compliance with EMC

Lenze has built up typical drives with these controllers and has
verified the conformity. In the following this system is called "CE-
typical drive system
".
If you observe the partially easy measures for the installation of
CE-typical drive system, the inverter will not cause any EMC
problems and you can be sure to comply with the EMC directive.

The following configurations can now be selected by the user:

The user himself can determine the system components and
their integration into the drive system and is then held
responsible for the conformity of the drive.

The user can select the CE-typical drive system for which the
manufacturer has already proved the conformity.

For deviating installations, e.g.

use of unscreened cables,

use of group filters instead of the assigned RFI filters,

without mains choke

the conformity to the CE-EMC directives requires a check of the
machine or system regarding the EMC limit values.
The user of the machine is responsible for the compliance
with the EMC directive.

This manual is related to the following products: