STEP ET Series - Page 31

Chapter 4 Wiring of Inverter
ET/EP/EH Series Intelligent Flexible Driver Manual
- 21 -
Inverter model
EP6/ET6
Inverter
capacity (kW)
Braking unit
Braking resistor (20% utilization
rate)
Specification
Quantity
(pcs)
Equivalent braking
Resistor specification
Quanti
ty
(pcs)
4T414
200
BKU-4110
2
50kW 5Ω
2
4T477
220
BKU-4110
2
50kW 5Ω
2
4T520
250
BKU-4220
2
60kW 4.7Ω
2
4T605
280
BKU-4220
2
80kW 3.5Ω
2
4T675
315
BKU-4220
2
80kW 3.5Ω
2
For the braking time in a braking cycle accounting for 40%, the external brake unit and braking
resistor configuration is shown in Table 2-4.
Table 2-4 400V class braking unit and braking resistor configuration
Inverter model
EP6/ET6
Inverter
capacity (kW)
Braking unit
Braking resistor (40% utilization
rate)
Specification
Quantity
(pcs)
Equivalent braking
Resistor specification
Quanti
ty
(pcs)
4T4A1
1.1
Built-in
520W 370Ω
1
4T5A6
1.5
780W 270Ω
1
4T7A2
2.2
1300W 180Ω
1
4T9A4
3
2200W 110Ω
1
4T012
4
2200W 110Ω
1
4T018
5.5
3300W 75Ω
1
4T023
7.5
4500W 55Ω
1
4T031
11
6600W 37Ω
1
4T039
15
9000W 27Ω
1
4T045
18.5
11kW 22Ω
1
4T060
22
13kW 18Ω
1
4T075
30
20kW 13.5Ω
1
4T089
37
BKU-4030
2
12.5kW 22Ω
2
4T103
45
BKU-4045
2
12.5kW 18Ω
2
4T140
55
BKU-4045
2
20kW 15Ω
2
4T168
75
BKU-4110
1
60kW 5Ω
1
4T208
90
BKU-4110
1
60kW 5Ω
1
4T250
110
BKU-4220
1
70kW 3.7Ω
1
4T304
132
BKU-4220
1
70kW 3.7Ω
1
4T377
160
BKU-4220
1
90kW 3Ω
1
4T414
200
BKU-4220
2
60kW 5Ω
2
4T477
220
BKU-4220
2
70kW 3.7Ω
2
4T520
250
BKU-4220
2
70kW 3.7Ω
2
4T605
280
BKU-4220
2
90kW 3Ω
2
4T675
315
BKU-4220
2
90kW 3Ω
2