Brake Resistors And Brake Units Used In Ac Motor Drives - Delta EB3000 Series User Manual

Chapter 11 Optional AccessoriesEB3000
The optional accessories listed in this chapter are available upon request. Installing additional
accessories to your drive can substantially improve the drive's performance. Select accessories
according to your needs or contact your local distributor for suggestion.

11-1 Brake Resistors and Brake Units Used in AC Motor Drives

Recommended Model Selection
Delta's
Motor Drive
Model
VFD022ED21B
VFD022ED21BE
230V
VFD037ED21B
VFD037ED21BE
VFD040ED43B
VFD040ED43BE
VFD055ED43B
VFD055ED43BE
VFD075ED43B
VFD075ED43BE
460V
VFD110ED43B
VFD110ED43BE
VFD150ED43B
VFD150ED43BE
VFD185ED43B
1 : The brake resistor should be able to endure 10 times the overload capacity.
*
* : The brake resistor should be able to endure 3.3 times the overload capacity.
2
* 3 : If you choose other brake resistors instead of Deltas, calculate the maximum power and average power of the
selected braking power to ensure that they meet the requirements. Maximum power: Vb
Vb 2 /R x ED%. (Vb stands for braking voltage; R stands for brake resistor value.)
* 4 : If the brake resistor value you used is larger than maximum resistor value, the elevator may not have enough
time to decelerate, further triggering an OV error on the drive.
IM 10% ED*
Min. Max
Resistor Resistor
Value* 3 (Ω) Value* 4 (Ω)
38.0 65.6
19.0 39
54.3 144.4
48.4 105
39.4 77
30.8 52.5
25.0 38.5
20.8 31.2
1
Suggested Min.
Braking Resistor
Power (kW) Value*
0.3 38.0
0.5 19.0
0.5 54.3
1.0 48.4
1.0 39.4
1.5 30.8
2.0 25
2.0 20.8
11-2
PM 30% ED*
2
Max Suggested
Resistor
3 (Ω) Value* 4 (Ω) Power (kW)
65.6
39
144.4
105
77
52.5
38.5
31.2
/R; average power:
2
Braking
1.0
1.5
2.0
2.0
3.0
4.0
6.0
7.2