FR500A&FR510A Series Vector Control Inverter
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Appendix B: Braking Resistor
When the inverter with high inertia loads or need to slow down rapid deceleration
,
Motor will in the
state of power generation, the energy is transferred to the inverter DC link via the inverter bridge,
causing the bus voltage of the inverter rises, when more than a certain value, the inverter will report
overvoltage fault, and even lead to inverter power module damage of overvoltage, to prevent this
happening, you must configure the brake components.
FR500A&FR510A versatile compact inverter series are all built-in brake unit, customers simply
external braking resistor can be used. The following is recommended braking resistor power rating and
resistance. Depending on the load, the user can change the values
appropriately, but must be
within the recommended range.
Inverter Model No.
Brake unit
Resistance(Ω)
Quantity
Minimum
enabled
brake
resistance
FR500A-4T-0.7G/1.5PB
Standard
built-in
200W 600Ω
1
100Ω
FR500A-4T-1.5G/2.2PB
300W 360Ω
1
100Ω
FR500A-4T-2.2G
300W 180Ω
1
100Ω
FR500A-4T-2.2G/4.0PB
300W 180Ω
1
100Ω
FR500A-4T-4.0G/5.5PB
400W 150Ω
1
100Ω
FR500A-4T-5.5G/7.5PB
600W 100Ω
1
80Ω
FR500A-4T-7.5GB
800W 75Ω
1
60Ω
FR500A-4T-7.5G/011PB
800W 75Ω
1
60Ω
FR500A-4T-011G/015PB
1.1kW 50Ω
1
43Ω
FR500A-4T-015G/018PB
1.6kW 40Ω
1
31Ω
FR500A-4T-018G/022PB
4.0kW 32Ω
1
24Ω
FR500A-4T-022G/030PB
4.5kW 27Ω
1
24Ω
FR500A-4T-030G/037PB
6.0kW 20Ω
1
19.2Ω
FR500A-4T-037GB
7.0kW 20Ω
1
19.2Ω
FR500A-4T-037G/045P(B)
Built-in
optional
7.0kW 20Ω
1
19.2Ω
FR500A-4T-045G/055P(B)
9.0kW 13Ω
1
12.8Ω
FR500A-4T-055G/075P(B)
11.0kW 10.2Ω
1
9.6Ω
FR500A-4T-075G/090P(B)
15.0kW 7.5Ω
1
6.8Ω
FR500A-4T-090G/110P(B)
18.0kW 6.5Ω
1
6.3Ω
FR500A-4T-110G/132P
FRBU-4T-
315
26.0kW 6Ω
1
6Ω
FR500A-4T-132G/160P
26.0kW 4Ω
1
4Ω
FR500A-4T-160G/185P
26.0kW 4Ω
1
4Ω
FR500A-4T-185G/200P
38.0kW 3.4Ω
1
3.4Ω
FR500A-4T-200G/220P
38.0kW 3.4Ω
1
3.4Ω
FR500A-4T-220G/250P
42.0kW 3Ω
1
3Ω
FR500A-4T-250G/280P
42.0kW 3Ω
1
3Ω
FR500A-4T-280G/315P
54.0kW 2Ω
1
2Ω
FR500A-4T-315G/355P
54.0kW 2Ω
1
2Ω
*Note
:
The model of FR510A series inverter only needs to replace FR500A in the above
table with FR510A
Remark:
Multiple braking resistors are connected in parallel mode. For example FR500A-4T-022G/030PB
inverter braking resistor selection: Recommend selecting two 2KW, 30Ω resistor in parallel connection,
Equivalent braking resistor is 4KW, 15Ω.
If the power rating over 90kw, please refer to
《
FRBU User's Manual Of Braking Unit
》
to select the
braking resistor.