Chapter 9 Accessories
Shenzhen Hpmont Technology Co., Ltd.
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72
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HD31 Series User Manual V1.1
9.3
Braking Resistor and Braking Unit
For the braking unit HDBU-4T150, the max. braking current is 150A. Refer to the “HDBU Series Dynamic
Braking Unit User Manual” for more details.
The braking resistor selection is shown as Table 9-2. If needed, please order goods.
The connection of braking resistor and the braking unit is shown as section 4.3.2 Supply and Motor
Connection (on page 18).
Table 9-2 Recommendation for the braking unit and braking resistor
Model
Motor
Braking unit
Braking resistor Value
Braking resistor power
HD31-4T2P2P
2.2 kW
Built-in
200 - 300 Ω
0.2 kw
HD31-4T3P7P
3.7 kW
Built-in
150 - 250 Ω
0.25 kw
HD31-4T5P5P
5.5 kW
Built-in
100 - 150 Ω
0.3 kW
HD31-4T7P5P
7.5 kW
Built-in
80 - 100 Ω
0.5 kW
HD31-4T011P
11 kW
Built-in
60 - 80 Ω
0.7 kW
HD31-4T015P
15 kW
Built-in
40 - 50 Ω
1 kW
HD31-4T018P
18.5 kW
Built-in
30 - 40 Ω
1.5 kW
HD31-4T022P
22 kW
Built-in
25 - 30 Ω
2 kW
HD31-4T030P
30 kW
Built-in
20 - 25 Ω
2.5 kW
HD31-4T037P
37 kW
Built-in
15 - 20 Ω
3 kW
HD31-4T045P
45 kW
Built-in
15 - 20 Ω
3.5 kW
HD31-4T055P
55 kW
Built-in
10 - 15 Ω
4.5 kW
HD31-4T075P
75 kW
Built-in
10 - 15 Ω
5.5 kW
HD31-4T090P
90 kW
HDBU-4T150
8 - 10 Ω
7.5 kW
HD31-4T110P
110 kW
HDBU-4T150
8 - 10 Ω
9 kW
HD31-4T132P
132 kW
HDBU-4T150
6 - 8 Ω
11 kW
Note:
1. Please select braking resistor based on the above table.
Bigger resistor can protect the braking system in faulty condition, but oversized resistor may bring a
capacity decrease, leading to over voltage protection.
2. The braking resistor should be mounted in a ventilated metal housing to prevent inadvertent contact
during it works, for the temperature is high.