A-1 Braking Resistor Selection Chart - Delta VFD-VJ Series User Manual

A-1 Braking Resistor Selection Chart

230V
Applicable
Motor
Braking
Unit Braking Resistor Models for
HP kW the Corresponding Brake Unit
3
VFDB＊
7.5 5.5 -
10 7.5 -
15 11 -
20 15 -
BR1K0W4P3*2
25 18 - BR1K2W3P9*2
30 22 - BR1K5W3P3*2
40 30 2015*2 BR1K0W5P1*2
50 37 2022*2 BR1K2W3P9*2
460V
Applicable
Motor
Braking
Unit Braking Resistor Models for
HP kW
3
VFDB*
7.5 5.5 -
10 7.5 -
15 11 -
20 15 - BR1K0W016*2
25 18 - BR1K5W013*2
30 22 -
BR1K5W013*2
40 30 4030*1 BR1K0W5P1*4
50 37 4045*1 BR1K2W015*4
60 45 4045*1 BR1K5W013*4
4030*2
75 55
BR1K0W5P1*4
4045*2
100 75 BR1K2W015*4
1
*
Calculation for 125% brake toque: (kw)*125%*0.8; where 0.8 is motor efficiency.
Because there is a resistor limit of power consumption, the longest operation time for 10%ED is 10sec (on: 10sec/ off:
90sec).
2
*
For heat dissipation, a resistor of 400W or lower should be fixed to the frame and maintain the surface temperature below 50℃;
a resistor of 1000W and above should maintain the surface temperature below 350℃.
3
*
Please refer to VFDB series Braking Module Instruction for more detail on braking resistor.
1
125% Braking Torque 10%ED
＊
2
＊
BR1K0W020*1
BR1K5W013*1
BR1K5W013*1
2 in series
2 in series
2 in series
2 in series
2 in series
1
* 125% Braking Torque 10%ED
the Corresponding Brake
2
Unit*
BR1K0W075*1
BR1K5W043*1
BR1K5W043*1
2 in series
2 in series
2 in series
4 in series
2 in parallel
2 in series
2 in parallel
2 in series
4 in series
2 in parallel
2 in series
Total
Effective Braking
Braking
Resistance of
Current
Each Drive
(A)
19
1000W20Ω
1500W13Ω 29
1500W13Ω 29
44
2000W8.6Ω
2400W7.8Ω 49
3000W6.6Ω 58
4000W5.1Ω 75
4800W3.9Ω 97
Effective Total
Braking Braking
Resistance of Current
Each Drive (A)
1000W75Ω 10.2
17.6
1500W43Ω
1500W43Ω 17.6
2000W32Ω 24
3000W26Ω 29
29
3000W26Ω
4000W20.4Ω 37
4800W15Ω 50
6000W13Ω 59
76
7200W10Ω
9600W7.5Ω 100
A-2
Maximum Braking Torque Limit
Highest
Minimum Total
Resistance Braking
Limit (Ω)
Current
Limit (A)
15.6 24.4
11.5 33.0
9.5 40.0
8.3 46.0
5.8 66.0
5.8 66.0
4.8 80.0
3.2 120.0
Maximum Braking Torque Limit
Highest
Minimum Total
Resistance
Braking
Limit (Ω) Current
Limit (A)
48.4 15.7
39.4 19.3
30.8 24.7
25.0 30.4
20.8 36.5
19.0 40.0
19.0 40.0
12.7 60.0
12.7 60.0
9.5 80.0
6.3 120.0
Maximum
Peak
Power
(kW)
9.3
12.5
15.2
17.5
25.1
25.1
30.4
45.6
Maximum
Peak
Power
(kW)
11.9
14.7
18.8
23.1
27.7
30.4
30.4
45.6
45.6
60.8
91.2