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Chapter 7 - Options
7-19
7.6.2 DB Resistors
1) Internal DB Resistor
SV-ACtionMaster inverters up to 3.7kW have built-in DB resistor on Power stack as factory installation. Installing the
external DB resistor (Optional) kit is strongly recommended when the unit is used for continuous operation or motor
rating is above 3.7kW.
Voltage
Applied motor
capacity (kW/HP)
Operating rate
(%ED/Continuous Braking Time)
Built in DB resistor
(Braking Torque: 100%)
0.75 / 1 3%/ 5Sec 200 ohm, 100W
1.5 / 2 3% / 5 Sec 100 ohm, 100W
2.2 / 3 2% / 5 Sec 60 ohm, 100W
200V Class
3.7 / 5 2% / 5 Sec 40 ohm, 100W
0.75 / 1 3% / 5 Sec 900 ohm, 100W
1.5 / 2 3% / 5 Sec 450 ohm, 100W
2.2 / 3 2% / 5 Sec 300 ohm, 100W
400V Class
3.7 / 5 2% / 5 Sec 200 ohm, 100W
2) DB Resistor (For External Installation, Optional)
DB transistor is integrated for ratings below 7.5kW. Install the external DB resistor if necessary. However, DB
transistor is not provided for the ratings above 11kW, installing both external DB unit and DB resistor are required. See
the following table for more details (ED: 5%, Continuous Braking Time:15 sec). If Enable duty (%ED) is increased to
10%, use the external DB resistor having twice Wattage rating.
100 % Braking Torque 150% Braking Torque
Applied motor
capacity
(kW / HP)
Operating rate
(ED/Continuous
Braking Time)
[ohm] [W] Type [ohm] [W] Type
0.75 / 1 5% / 15 Sec 200 100 TYPE 1 150 150 TYPE 1
1.5 / 2 5% / 15 Sec 100 200 TYPE 1 60 300 TYPE 1
2.2 / 3 5% / 15 Sec 60 300 TYPE 1 50 400 TYPE 1
3.7 / 5 5% / 15 Sec 40 500 TYPE 2 33 600 TYPE 2
5.5 / 7.5 5% / 15 Sec 30 700 TYPE 3 20 800 TYPE 3
7.5 / 10 5% / 15 Sec 20 1000 TYPE 3 15 1200 TYPE 3
11 / 15 5% / 15 Sec 15 1400 TYPE 3 10 2400 TYPE 3
15 / 20 5% / 15 Sec 11 2000 TYPE 3 8 2400 TYPE 3
18.5 / 25 5% / 15 Sec 9 2400 TYPE 3 5 3600 TYPE 3
2
0
0
V
22 / 30 5% / 15 Sec 8 2800 TYPE 3 5 3600 TYPE 3
0.75 / 1 5% / 15 Sec 900 100 TYPE 1 600 150 TYPE 1
1.5 / 2 5% / 15 Sec 450 200 TYPE 1 300 300 TYPE 1
2.2 / 3 5% / 15 Sec 300 300 TYPE 1 200 400 TYPE 1