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09 Appendix a selection guide

Version 11.1 by Theodore Xu on 2024/11/18 15:29

Braking resistor selection

✎Note

When VFD install Braking resistor，it needs set F4.16=0,FA.03=0,FA.04=120.

Woodworking engraving machine, lifting, centrifugal drying and other industries belong to the high-frequency braking occasions recommended to use higher power braking resistors.

AC Drive ModelInverter Power

Braking resistor power

(General occasions/High frequency braking occasions)

Braking resistor resistance value
kWkWΩ
Single phase 220V input
VB-2SR75GB0.80.1/0.15200.0
VB-2S1R5GB1.50.2/0.3100.0
VB-2S2R2GB2.20.2/0.570.0
Three-phase 380V input
VB-4TR75GB0.80.1/0.15750.0
VB-4T1R5GB1.50.2/0.3400.0
VB-4T2R2GB2.20.2/0.5250.0
VB-4T004GB/5R5PB4/5.50.4/0.8150.0
VB-4T5R5GB/7R5PB5.5/7.50.6/1.2100.0
VB-4T7R5GB7.50.8/1.575.0
VB-4T011GB/015PB11/151.1/2.550.0
VB-4T015GB/18R5PB15/18.51.5/3.040.0
VB-4T18R5GB/022PB18.5/221.9/4.030.0
VB-4T022GB/030PB22/302.2/4.525.0
VB-4T030G/037P30/373.0/6.020.0
VB-4T037G/045P37/453.7/7.515.0
VB-4T045G/055P45/554.5/9.013.0
VB-4T055G/075P55/755.5/1511.0
VB-4T075G/093P75/937.5/188.0
VB-4T093G/110P93/1109.3/206.0
VB-4T110G/132P110/13211.0/256.0
VB-4T132G/160P132/16013.2/33.05.0
VB-4T160G/185P160/18516.0/40.04.0
VB-4T185G/200P185/20018.5/46.03.0
VB-4T200G/220P200/22020.0/50.03.0
VB-4T220G/250P220/25022.0/55.03.0
VB-4T250G/280P250/28025.0/62.52.0
VB-4T280G/315P280/31528.0/70.02.0
VB-4T315G/355P315/35531.5/79.02.0
VB-4T355G/400P355/40035.5/89.01.5
VB-4T400G400.040.0/100.01.5

Recommended power terminal wire

AC Drive ModelPowerRated input currentRated output currentRecommended input cableRecommended output cableMain terminal adapter lug
kWAAmm²mm²Model
Single phase 220V input
VB-2SR75GB0.758.24.50.750.75E1510
VB-2S1R5GB1.51471.51.5E1510
VB-2S2R2GB2.2239.62.52.5E1510
Three-phase 380V input
VB-4TR75GB0.753.42.10.750.75E1510
VB-4T1R5GB1.553.80.750.75E1510
VB-4T2R2GB2.25.85.10.750.75E1510
VB-4T004GB/5R5PB4/5.510.5/14.6444521.51.5E1510
VB-4T5R5GB/7R5PB5.5/7.514.6/20.513/172.52.5E2512
VB-4T7R5GB7.520.51744E2512
VB-4T011GB/015PB4451526/3525/3244GTNR 6-5
VB-4T015GB/18R5PB15/18.535/38.532/3766GTNR 6-5
VB-4T18R5GB/022PB18.5/2238.5/4637/451010GTNR 10-6
VB-4T022GB/030PB22/3046.5/6245/601010GTNR 10-6
VB-4T030G/037P30/3762/7660/751616GTNR 25-6
VB-4T037G/045P37/4576/9275/912525GTNR 25-6
VB-4T045G/055P45/5592/11391/1103535GTNR 35-10
VB-4T055G/075P55/75113/157112/1505050GTNR 50-10
VB-4T075G/093P75/93157/180150/1707070GTNR 95-10
VB-4T093G/110P93/110180/214170/2109595GTNR 95-10
VB-4T110G/132P110/132214/256210/2539595GTNR 95-10
VB-4T132G/160P132/160256/307253/304120120GTNR 150-12
VB-4T160G/185P160/185307/345304/340150150GTNR 150-12
VB-4T185G/200P185/200345/385340/377150150GTNR 150-12
VB-4T200G/220P200/220385/430377/426185185GTNR 185-16
VB-4T220G/250P220/250430/468426/4652x1202x120GTNR 150-16
VB-4T250G/280P250/280468/525465/5202x1202x120GTNR 150-16
VB-4T280G/315P280/315525/590520/5852x1202x120GTNR 150-16
VB-4T315G/355P315/355590/665585/6502x1502x150GTNR 150-16
VB-4T355G/400P355/400665/785650/7252x1852x185GTNR 185-16
VB-4T400G4007857252x2402x240GTNR 240-16

Ground wire selectio

1. The terminal must be grounded reliably, and the resistance of the grounding wire must be less than 0.1Ω. Otherwise, the equipment will work abnormally or even be damaged.

2. Do not share the grounding terminal and the N terminal of the neutral line of the power supply.

3. impedance of the protective grounding conductor must meet the requirements of being able to withstand the large short-circuit current that may occur in the event of a fault.

4. The protective grounding conductor must use a yellow-green cable.

5. The size of the protective grounding conductor is selected according to the following table:

The cross-sectional area of a phase wire (S)

Minimum cross-sectional area of protective conductor (Sp)

S ≤ 16mm2

S

16mm2＜ S ≤ 35mm2

16mm2

316mm2 ＜ S

S/2