Appendix B Accessories|VFD-B Series

Applicable Full Resistor

Motor Load value spec

hp

kW

Torque for each AC

Nm Motor Drive

1 0.75 0.427 300W 400Ω

Brake Unit

Part No. and

Quantity

Brake Resistors

Part No. and

Quantity

BR300W400 1

Brake

Torque

10%ED

125

Min. Equivalent

Resistor Value

for each AC

Motor Drive

200Ω

2 1.5 0.849 300W 250Ω

BR300W250 1 125

200Ω

3 2.2 1.262 400W 150Ω

BR400W150 1 125

130Ω

5 3.7 2.080 400W 150Ω

BR400W150 1 125

130Ω

7.5 5.5 3.111 500W 100Ω

BR500W100 1 125

82Ω

10 7.5 4.148 500W 100Ω

BR500W100 1 125

82Ω

15 11 6.186 500W 100Ω

BR500W100 1 125

82Ω

20 15 8.248 3000W 60Ω 5055 1 BR1K0W020 3 125

60Ω

25 18.5 10.281 4000W 50Ω 5055 1 BR1K0W050 4 125

50Ω

30 22 12.338 6000W 40Ω 5055 1 BR1K2W008 5 125

40Ω

40 30 16.497 6000W 34Ω 5055 1 BR1K2W6P8 5 125

34Ω

50 37 20.6 7500W 25Ω 5055 1 BR1K5W005 5 125

25Ω

60 45 24.745 12000W 20Ω 5055 1 BR1K2W008 10 125

20Ω

75 55 31.11 12000W 17Ω 5055 1 BR1K2W6P8 10 125

17Ω

100 75 42.7 15000W 12.5Ω 5055 2 BR1K5W005 10 125

12.5Ω

NOTE

1. Please select the factory setting resistance value (Watt) and the duty-cycle value (ED%).

2. If damage to the drive or other equipment are due to the fact that the brake resistors and the

brake modules in use are not provided by Delta, the warranty will be void.

3. Take into consideration the safety of the environment when installing the brake resistors.

4. If the minimum resistance value is to be utilized, consult local dealers for the calculation of the

Watt figures.

5. Please select thermal relay trip contact to prevent resistor over load. Use the contact to switch

power off to the AC motor drive!

6. When using more than 2 brake units, equivalent resistor value of parallel brake unit can’t be

less than the value in the column “Minimum Equivalent Resistor Value for Each AC Drive” (the

right-most column in the table). An example of 575V 100HP, the min. equivalent resistor value

for each AC motor drive is 12.5Ω with 2 brake units connection. Therefore, the equivalent

resistor value for each brake unit should be 25Ω.

7. Please read the wiring information in the user manual of brake unit thoroughly prior to taking

into operation.

B-2

Revision July 2008, BE16, SW V4.08 & V5.00