VLT
®
FCD Series
■
Optimal braking using resistor
Dynamic braking is useful from maximum speed
down to around 8% of rated speed. Below 8%
speed DC braking can be used if necessary .
The most effective method is to switch from dynamic
to DC braking.
■
Brake cable
Max. length [m]: 10 m
The connection cable to the brake resistor must be
screened/armoured. Connect the screen to the con-
ductive backplate at the frequency converter and to
the brake resistor metal cabinet by means of cable
clamps.
NB!:
If Danfoss brake resistors are not used,
it must be ensured that induction for the brake
resistor is low.
MG.04.A1.02 - VLT is a registered Danfoss trade mark
19
Introduction
to
FCD
300