Omron SYSDRIVE 3G3RV Series User Manual page 63

To prevent the Unit from overheating, design the sequence to turn OFF the power supply for the thermal over-
load relay trip contacts of the Unit as shown in Fig 2.17.
200-V and 400-V Class Inverters with 0.4 to 18.5 kW Output
Inverter
200-V and 400-V class Inverters with 22 kW or higher Output
Inverter
Fig 2.17 Connecting the Braking Resistor Unit and Braking Unit
Connecting Braking Units in Parallel
When connecting two or more Braking Units in parallel, use the wiring and connectors shown in Fig 2.18.
There are connectors for selecting whether each Braking Unit is to be a Master or Slave. Select "Master" for
the first Braking Unit only, and select "Slave" for all other Braking Units (i.e., from the second Unit onwards).
3G3IV-PLKBo
Braking Resistor Unit
3G3IV-PCDBRo
Braking Unit
Thermal overload
relay trip contact
Wiring Main Circuit Terminals
Thermal overload
relay trip contact
3G3IV-PLKBo
Braking Resistor Unit
Thermal
trip contact
protector
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