Alternative Brake Resistors, T2 And T4 - Danfoss VLT AQUA Drive FC 202 Design Manual

Type code and Selection
FC 202
Adjustable frequency drive data
P
Line
m
R R
power [kW
min br,nom
type (hp)] [Ω] [Ω]
315
T7 2.3
(425)
400
T7 2.3
(550)
450
T7 2.0
(600)
500
T7 1.9
(650)
560
T7 1.5
(750)
630
T7 1.4
(850)
710
T7 1.2
(950)
800
T7 1.1 (1.5)
(1075)
900
T7 1.0
(1200)
1000
T7 0.9 1.1 (1.5)
(1350)
1200
T7 0.8
(1600)
1400
T7 0.6
(1875)
Table 6.14 T7, Vertical Braking 40% Duty Cycle, Recommended Brake Resistors

6.2.6 Alternative Brake Resistors, T2 and T4

Line power Voltage class
P Rated motor size for adjustable frequency drive type
m
R Minimum permissible brake resistor - by adjustable frequency drive
min
R Recommended brake resistor resistance of Danfoss brake resistors
rec
Duty cycle P x100/Pm
br,cont.
Part number Danfoss brake resistor order numbers
P Brake resistor average rated power.
br,cont.
R The nominal (calculated) resistor value to ensure a braking energy on the motor shaft of 150/160/110% for 1
br,nom
minute
Table 6.15 Abbreviations used in Table 6.16 to Table 6.17
MG20N622
Design Guide
Wire IP54
R P
rec
br,cont.
[Ω] [kW (hp)]
3.7 3.2 -
2.9 2.5 -
2.6 2.3 -
2.3 2.0 -
2.1 1.6 -
1.8 1.4 -
1.6 2 x 2.6 -
1.4 2 x 2.2 -
1.3 2 x 2.0 -
3 x 2.6 -
1.0 3 x 2.4 -
0.8 3 x 2.0 -
Danfoss A/S © 09/2014 All rights reserved.
Vertical braking 40% duty cycle
Brake resistor data
Danfoss part number
Screw Screw
terminal terminal
IP21 IP65
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Installation
Cable
cross-
Bolt
section
Thermo
connection
2
[mm relay
IP20
(AWG)] [A]
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