Selecting The Brake Resistor Cables - ABB ACS355 User Manual

Type R
min
ACS355-
1)
x = E/U ohm
3-phase U = 380...480 V (380, 400, 415, 440, 460, 480 V)
N
03x-01A2-4 200
03x-01A9-4 175
03x-02A4-4 165
03x-03A3-4 150
03x-04A1-4 130
03x-05A6-4 100
03x-07A3-4 70
03x-08A8-4 70
03x-12A5-4 40
03x-15A6-4 40
03x-23A1-4 30
03x-31A0-4 16
03x-38A0-4 13
03x-44A0-4 13
1)
E = EMC filter connected (metal EMC filter screw installed),
U = EMC filter disconnected (plastic EMC filter screw installed), US
parametrization.
2)
Braking time = maximum allowed braking time in seconds at P
120 seconds, at 40 °C ambient temperature.
Symbols
R = minimum allowed brake resistor that can be connected to the brake chopper
min
R = maximum allowed brake resistor that allows P
max
P = maximum braking capacity of the drive, must exceed the desired braking power.
BRmax
Ratings by resistor type
Nominal power (W)
Resistance (ohm)
WARNING! Never use a brake resistor with a resistance below the minimum
value specified for the particular drive. The drive and the internal chopper are
not able to handle the overcurrent caused by the low resistance.

Selecting the brake resistor cables

Use a shielded cable with the conductor size specified in section
and fuses on page 361. The maximum length of the resistor cable(s) is 5 m (16 ft).
R P
max BRmax
ohm kW hp
1180 0.37 0.5
800 0.55 0.75
590 0.75 1
400 1.1 1.5
300 1.5 2
200 2.2 3
150 3.0 4
110 4.0 5
80 5.5 7.5
60 7.5 10
40 11 15
29 15 20
23 18.5 25
19 22.0 30
CBR-V
160
280
70
Appendix: Resistor braking 391
Selection table by resistor type
CBR-V / CBT-H
160 210 260 460 660 560
every
BRmax
BRmax
CBR-V CBR-V
210 260
360 450
200 40
Braking time
s
90
90
60
37
27
17
29
20
15
10
10
16
13
10
00353783.xls J
CBR-V CBR-V
460 660
790 1130
80 33
Power cable sizes
2)
CBT-H
560
2200
18