Mitsubishi Electronics Frequency Inverter Automobile Accessories User Manual


 
39
MITSUBISHI ELECTRIC
FR-F 740 EC/E1
ACCESSORIES
˾ Brake Resistors for Brake Unit BU-UFS
The brake resistors RUFC for the frequency
inverters FR-F 740 EC/E1 are designed for
the exclusive use in combination with a
brake unit BU-UFS.
Please, note the specifications for the
allowed duty cycle (ED max.) included in
the instruction manual for the brake unit!
RUFC22 BU-UFS 22 10% 1 x 24 2000 129629
RUFC40 (Set) BU-UFS 40 10% 2 x 6.8 2000 129630
RUFC110 (Set) BU-UFS 110 10% 4 x 6.8 2000 129631
FR-F740-00023 – 00250 BU-UFS22
34 25
10% 127947
FR-F740-00250 – 00470 BU-UFS40
55 41
10% 127948
FR-F740-00470 – 01160 BU-UFS110
140 105
5% 127950
For a braking torque higher than 20% or a
duty cycle higher than 30% an external
brake unit including the adequate brake
resistors has to be installed.
The brake units BU-UFS listed below are
cascadable so that the optimum dimensio
-
ning can always be achieved.
The brake units here are not fitted with
brake resistors, which must be ordered se
-
parately (see below).
The configurations in the table are only ge
-
neral recommendations. Please consult
Mitsubishi Electric for advice on matching
the correct brake modules and brake resis
-
tors for your application.
˾
Brake Units BU-UFS