Delta VFD007FP4EA-41 - All Brake Resistors and Brake Units Used in AC Motor Drives

Chapter 7 Optional Accessories |CFP2000 Series
7-2
The optional accessories listed in this chapter are available upon request. Installing additional
accessories to your drive would substantially improve the drive’s performance. Please select an applicable
accessory according to your need or contact the local distributor for suggestion.
7-1 All Brake Resistors and Brake Units Used in AC Motor Drives
Applicable
Motor
*
1
125%Braking Torque 10%ED *
2
Max. Brake Torque
HP kW
Braking
Torque
(kg-m)
Brake
Unit
*
3
Braking Resistor series for
each Brake Unit
Resistor value
spec. for each
AC motor Drive
Tot al
Braking
Current (A)
Min.
Resistor
Value (Ω)
Max. Total
Braking
Current (A)
Peak
Power
(kW)
*
4
VFDB
1 0.7 0.5 -
BR080W750*1 80W750Ω 1 190.0 4 3.0
2 1.5 1.0 -
BR080W750*1 80W750Ω 1 190.0 4 3.0
3 2.2 1.5 -
BR200W360*1 200W360Ω 2.1 126.7 6 4.6
5 3.7 2.5 -
BR300W250*1 300W250Ω 3 108.6 7 5.3
5.5 4.0 2.7 -
BR400W150*1 400W150Ω 5.1 84.4 9 6.8
7.5 5.5 3.7 -
BR1K0W075*1 1000W75Ω 10.2 54.3 14 10.6
10 7.5 5.1 -
BR1K0W075*1 1000W75Ω 10.2 54.3 14 10.6
15 11 7.5 -
BR1K0W075*1 1000W75Ω 10.2 47.5 16 12.2
20 15 10.2 -
BR1K5W043*1 1500W43Ω 17.6 42.2 18 13.7
25 18 12.2 -
BR1K0W016*2 2000W32Ω 2000W32Ω 24 26.2 29 22.0
30 22 14.9 -
BR1K0W016*2 2000W32Ω 2000W32Ω 24 23.0 33 25.1
40 30 20.3 -
BR1K5W013*2 3000W26Ω 3000W26Ω 29 23.0 33 25.1
50 37 25.1 4045*1
BR1K0W016*4 4000W16Ω 4000W16Ω 47.5 14.1 54 41.0
60 45 30.5 4045*1
BR1K2W015*4 4800W15Ω 4800W15Ω 50 12.7 60 45.6
75 55 37.2 4030*2
BR1K5W013*4 6000W13Ω 6000W13Ω 59 12.7 60 45.6
100 75 50.8 4045*2
BR1K0W5P1*4 8000W10.2Ω 8000W10.2Ω 76 9.5 80 60.8
125 90 60.9 4045*2
BR1K2W015*4 9600W7.5Ω 9600W7.5Ω 100 6.3 120 91.2
*
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
Please refer to the Brake Performance Curve for “Operation Duration & ED” vs. “Braking Current”.
*
3
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 600℃.
*
4
Please refer to VFDB series Braking Module Instruction for more detail on braking resistor.
NOTE
1. Definition for Brake Usage ED%
Explanation: The definition of the brake usage ED (%) is for assurance of enough time for the brake unit and brake resistor to
dissipate away heat generated by braking. When the brake resistor heats up, the resistance would increase with
temperature, and brake torque would decrease accordingly. Recommended cycle time is one minute.
For safety concern, install an overload relay (O.L) between the brake unit and the brake resistor in conjunction with the
magnetic contactor (MC) prior to the drive for abnormal protection. The purpose of installing the thermal overload relay is to
protect the brake resistor from damage due to frequent brake, or due to brake unit keeping operating resulted from unusual
high input voltage. Under such circumstance, just turn off the power to prevent damaging the brake resistor.