Chapter I Product Specification and Ordering Instructions
13
1.7 Braking resistors
Please select energy consumption braking resistors according to Table 1-6. The wiring of the
braking resistors is shown in Figure 1-2.
Figure 1-3 Drive and Braking Assembly Wiring Diagram
Note:
1. The power derating of the braking resistor shall not exceed 30%, otherwise there is a risk of
fire.
2. For braking standard products of 37kW and below, the built-in braking unit can be used; for
braking those of 45kW and above, an external braking unit needs to be added.
3. The wiring length of the braking resistor shall be less than 5m. During the energy
consumption braking process, the braking resistor will cause temperature rise due to energy
consumption. During installation, pay attention to safety protection and sound ventilation.
The braking resistor resistance and the power are selected according to the actual situation.
The greater the system inertia, the shorter the deceleration time required, the more frequent the
braking, the greater the power required by the braking resistor and the smaller the resistance
required. Table 1-6 is recommended based on general applications.
Table 1-7 Braking Resistor Selection Table
（
380V
）
Specification
Suitable motor
power (kW)
Braking resistor
recommendation
Resistance (Ω)
Braking resistor
recommendation
Power (W)
HAV-SP-4T0022P
2.2
200
100
HAV-SP-4T0030P
3.0
200
200
HAV-SP-4T0040P
4.0
200
300
HAV-SP-4T0055P
5.5
200
300
HAV-SP-4T0075P
7.5
≥80
750
HAV-SP-4T0110P
11
≥50
1100
HAV-SP-4T0150P
15
≥50
1500
HAV-SP-4T0185P
18.5
≥45
1800