YASKAWA CIMR-F7A Instruction Manual page 57

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 2.14.
200 V and 400 V Class Inverters with 0.4 to 18.5 kW Output
Inverter
When connecting a separately-installed type Braking Unit (model CDBR), connect the B1 terminal of the
Inverter to the + terminal of the Braking Unit and connect the − terminal of the Inverter to the − terminal of the
Braking Unit. The B2 terminal is not used in this case.
IMPORTANT
200 V and 400 V Class Inverters with 22 kW or higher Output
Inverter
Fig 2.14 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 2.15.
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).
LKEB Braking
Resistor Unit
LKEB
CDBR Braking
Resistor Unit
Unit
Thermal overload
relay trip contact
Wiring Main Circuit Terminals
Thermal overload
relay trip contact
Braking
Thermal protector
trip contact
21
2-