
E6581301
E-40
5
■ Minimum resistance of connectable braking resistors
The minimum allowable resistance values of the externally connectable braking resistors are listed in the table
below.
Do not connect braking resistors with smaller resultant resistance than the listed minimum allowable resistance
values.
(For 200kW or greater models, a dynamic braking resistor drive unit (optional separate unit) is needed.)
200V Class 400V Class
Inverter
Related output capacity
(kW)
Resistance of
standard option
Minimum allowable
resistance
Resistance of
standard option
Minimum allowable
resistance
0.4 200Ω 50Ω ––
0.75 200Ω 50Ω 200Ω 60Ω
1.5 75Ω 35Ω 200Ω 60Ω
2.2 75Ω 25Ω 200Ω 60Ω
3.7/4.0 40Ω 16Ω 160Ω 40Ω
5.5 20Ω 11Ω 80Ω 30Ω
7.5 15Ω 8Ω 60Ω 30Ω
11 10Ω 5Ω 40Ω 20Ω
15 7.5Ω 5Ω 30Ω 20Ω
18.5 7.5Ω 5Ω 30Ω 15Ω
22 3.3Ω 3.3Ω 15Ω 13.3Ω
30 3.3Ω 2.5Ω 13.3Ω 10Ω
37 2Ω 1.7Ω 8Ω 6.7Ω
45 2Ω 1.7Ω 8Ω 5Ω
55 2Ω 1.7Ω 8Ω 5Ω
75 1.7Ω 1.3Ω 8Ω 3.3Ω
90 – – 3.7Ω 2.5Ω
110 – – 3.7Ω 1.9Ω
132 – – 3.7Ω 2.5Ω
160 – – 3.7Ω 1.3Ω
200 – – 1.9Ω 1Ω
220 – – 1.9Ω 1Ω
280 – – 1.4Ω 1Ω
355 – –
400 – –
500 – –
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