Lenze 8615E - Manual (Page 23)

21
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.