Appendix B Accessories_VFD-B Series
B-2 Revision 10/2005, BE13, SW V4.08
Applicable
Motor
Voltage
hp kW
Full
Load
Torque
Nm
Resistor value
spec for each
AC Motor
Drive
Braking Unit
Model VFDB
No. of Units
Used
Braking Resistors
Model and No. of
Units Used
Braking
Torque
10%ED
Min. Equivalent
Resistor Value
for each AC
Motor Drive
60 45 24.745
9600W 13.6Ө
4045 1
BR1K2W6P8 8
125
13.6Ө
75 55 31.11
12000W 10Ө
4030 2
BR1K5W005 8
125
10Ө
100 75 42.7
19200W 6.8Ө
4045 2
BR1K2W6P8 16
125
6.8Ө
1 0.75 0.427
300W 400Ө
BR300W400 1
200Ө
2 1.5 0.849
300W 250Ө
BR300W250 1
200Ө
3 2.2 1.262
400W 150Ө
BR400W150 1
130Ө
5 3.7 2.080
400W 150Ө
BR400W150 1
130Ө
7.5 5.5 3.111
500W 100Ө
BR500W100 1
82Ө
10 7.5 4.148
500W 100Ө
BR500W100 1
82Ө
575V Series
15 11 6.186
500W 100Ө
BR500W100 1
82Ө
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 braking resistors and the braking
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 braking 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 braking units, equivalent resistor value of parallel braking 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).
7. Please read the wiring information in the user manual of braking unit thoroughly prior to taking into
operation.
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