Brake Resistors; Lcp Panel Mounting Kit - Danfoss VLT AutomationDrive FC 300 Design Manual

Options and Accessories

9.10 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 voltage 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 variety of different
resistors that are specially designed to our frequency
converters. See 3.8.5 Control with Brake Function for
dimensioning of brake resistors. Code numbers can be
found in 5 How to Order.

9.11 LCP Panel Mounting Kit

The LCP can be moved to the front of a cabinet by using
the remote built-in kit. The enclosure is the IP66. The
9 9
fastening screws must be tightened with a torque of max.
1 Nm.
Enclosure
Max. cable length between and unit
Communication std
Table 9.15 Technical Data
Illustration 9.27 LCP Kit with Graphical LCP, Fasteners, 3 m Cable
and Gasket
Ordering No. 130B1113
172
RSPSupply - 1-888-532-2706 - www.RSPSupply.com
http://www.RSPSupply.com/p-21462-Danfoss-131B8966-VLT-Automation-VT-Drive-VFD-FC301-230V-5-HP.aspx
®
VLT AutomationDrive FC 300 Design Guide, 0.25-75 kW
Illustration 9.28 LCP Kit with Numerical LCP, Fasteners and
Gasket
Ordering no. 130B1114
64,5± 0.5 mm
(2.54± 0.04 in)
IP66 front
3 m
Panel
RS-485
cut out
Illustration 9.29 Dimensions
®
MG33BE02 - VLT is a registered Danfoss trademark