2-15
2
Connecting a Braking Resistor and Braking Unit (CDBR)
A Braking Resistor and Braking Unit can be connected to the Inverter like shown in the Fig 2.7.
To prevent overheating of the braking unit/braking resistor, the inverter operation should be stopped when the
overload contacts are operated.
200 V and 400 V Class Inverters with 3.7 to 18.5 kW Output Capacity
200 V and 400 V Class Inverters with 22 kW or higher Output Capacity
Fig 2.7 Connecting the Braking Resistor and Braking Unit
Inverter
Braking Resistor
Thermal over-
load relay contact
Inverter
Braking Resistor
Thermal overload
relay contact
CDBR Braking Unit
Thermal overload
relay contact