WEG CFW-11 Installation Manual page 21

Maximum braking
Inverter model
CFW11 0006 B 2
CFW11 0006 S 2 O FA
CFW11 0007 B 2
CFW11 0007 S 2 O FA
CFW11 0007 T 2
CFW11 0010 S 2
CFW11 0010 T 2
CFW11 0013 T 2
CFW11 0016 T 2
CFW11 0024 T 2
CFW11 0028 T 2
CFW11 0033 T 2
CFW11 0045 T 2
CFW11 0054 T 2
CFW11 0070 T 2
CFW11 0086 T 2
CFW11 0105 T 2
CFW11 0003 T 4
CFW11 0005 T 4
CFW11 0007 T 4
CFW11 0010 T 4
CFW11 0013 T 4
CFW11 0017 T 4
CFW11 0024 T 4
CFW11 0031 T 4
CFW11 0038 T 4
CFW11 0045 T 4
CFW11 0058 T 4
CFW11 0070 T 4
CFW11 0088 T 4
CFW11 0142 T 2 O DB
CFW11 0180 T 2 O DB
CFW11 0211 T 2 O DB
CFW11 0105 T 4 O DB
CFW11 0142 T 4 O DB
CFW11 0180 T 4 O DB
CFW11 0211 T 4 O DB
Notes:
(1) The effective braking current presented is just an indicative value, because it depends on the braking duty cycle. The effective braking current can be obtained from the equation below, where t
is given in minutes and corresponds to the sum of all braking times during the most severe cycle of 5 (five) minutes.
t
I = I ·
br
effective max √ 5
(2) The P and P values (maximum and mean power of the braking resistor respectively) presented are valid for the recommended resistors and for the effective braking currents presented in the
max R
table. The resistor power must be changed according to the braking duty cycle.
Table A.3: Dynamic braking specifications for sizes A to E
Maximum braking Effective braking
current power (peak value)
(I ) (P )
(2)
max max
[A] [kW]
5.3 2.1
5.3 2.1
7.1 2.9
7.1 2.9
5.3 2.1
11.1 4.4
7.1 2.9
11.1 4.4
14.8 5.9
26.7 10.7
26.7 10.7
26.7 10.7
44 17.6
48.8 19.5
48.8 19.5
93 37.2
111.1 44.4
3.6 2.9
5.3 4.3
5.3 4.3
8.8 7
10.7 8.5
12.9 10.3
17 13.6
26.7 21.3
36.4 29.1
47.1 37.6
53.3 42.7
66.7 53.3
87.9 70.3
266.7 106.7
266.7 106.7
333.3 133.3
186 148.8
266.7 213.3
266.7 213.3
363.6 290.9
Dissipated power
Recommended
current (mean value) in the
(I ) braking resistor
(1)
effective
[A] (P ) [kW]
(2)
R
5.2 2.03
5.2 2.03
6.96 2.71
6.96 2.71
5.2 2.03
10.83 4.22
6.96 2.71
8.54 2.62
14.44 5.63
19.15 5.5
18.21 4.97
16.71 4.19
33.29 10.1
32.17 8.49
26.13 5.6
90.67 35.3
90.87 29.7
3.54 2.76
5.2 4.05
5.2 4.05
8.57 6.68
10.4 8.11
12.58 9.81
16.59 12.9
20.49 12.6
26.06 14.9
40 27.2
31.71 15.1
42.87 22.1
63.08 36.2
142 30.2
180 48.6
211 53.4
105 47.4
142 60.5
180 97.2
191.7 80.8
Installation Guide
Power wire size (terminals
resistor DC+ and BR)
[Ω] [mm 2 (AWG)]
75 1.5 (16)
75 1.5 (16)
56 1.5 (16)
56 1.5 (16)
75 1.5 (16)
36 2.5 (14)
56 1.5 (16)
36 2.5 (14)
27 4 (12)
15 6 (10)
15 6 (10)
15 6 (10)
9.1 10 (8)
8.2 10 (8)
8.2 6 (8)
4.3 35 (2)
3.6 35 (2)
220 1.5 (16)
150 1.5 (16)
150 1.5 (16)
91 2.5 (14)
75 2.5 (14)
62 2.5 (12)
47 4 (10)
30 6 (10)
22 6 (8)
17 10 (8)
15 10 (8)
12 10 (6)
9.1 25 (4)
1.5 70 (2/0) or 2x 25 (2x 4)
1.5 120 (4/0) or 2x 35 (2x 2)
1.2 150 (300) or 2x 50 (2x 1)
4.3 50 (1)
3 70 (2/0) or 2x 25 (2x 4)
3 120 (4/0) or 2x 35 (2x 2)
2.2 120 (250) or 2x 50 (2x 1)
CFW-11 | 21
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