Ip 21/Ip 4X/ Type 1 Enclosure Kit - Danfoss VLT AutomationDrive FC 300 Design Manual

FC 300 Design Guide
Brake Resistors
In applications where the motor is used as a brake, energy is generated in the motor and send back into
the frequency converter. If the energy can not be transported back to the motor it will increase the volt-
age in the converter DC-line. In applications with frequent braking and/or high inertia loads this increase
may lead to an over voltage trip in the converter and finally a shut down. Brake resistors are used to
dissipate the excess energy resulting from the regenerative braking. The resistor is selected in respect
to its ohmic value, its power dissipation rate and its physical size. Danfoss offers a wide verity of different
resistors that are specially designed to our drive code numbers can be found in section How to order.
Remote mounting Kit for LCP
The Local Control Panel can be moved to the front
of a cabinet by using the remote build in kit. The
enclosure is the IP65. The fastening screws must
be tightened with a torque of max. 1 Nm.

IP 21/IP 4X/ TYPE 1 Enclosure Kit

IP 20/IP 4X top/ TYPE 1 is an optional enclosure element available for IP 20 Compact units.
If the enclosure kit is used, an IP 20 unit is upgraded to comply with enclosure IP 21/ 4X top/TYPE 1.
The IP 4X top can be applied to all standard IP 20 FC 30X variants.
Options and Accessories
MG.33.B8.02 - VLT ® is a registered Danfoss trademark
Technical data
Enclosure:
Max. cable length between VLT and
unit:
Communication std:
IP 65 front
3 m
RS 485
125