Chapter 9 Options
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9-1.Expansion cards
If the extended function (RS485 card, PG card, Canbus card, etc.) for other functional modules is
needed, please specify the functional module card you want when ordering.
9-2.Brake unit and brake resistor
ST500 converter 220V 11kW and below, 380V 22kW and below have a built-in brake unit.
Please refer to the user purchase table to match the braking resistance can; 220V 15kW and above as
well as 380V 30kW and above models need to use an external brake unit, if there is a need to brake,
please use the Sourcetronic brake unit and select a braking resistor resistance value and power
according to the specific situation.
1. 220V 11kW below models (built-in) braking resistor selection as below:
Frequency inverter
voltage
Resistance of braking
resistor(Ω)
Capability of braking
resistor(kW)
2. 380V 22kW below models (built-in) braking resistor selection as below:
Frequency inverter
voltage
Resistance of braking
resistor(Ω)
Capability of braking
resistor(kW)
3.380V 30kW and above models external braking unit and braking resistor selection:
Braking resistor(braking torque 150%)