Omron SYSDRIVE RV Series User Manual page 63

Inverter
Braking Unit #1
Cooling fin overheating con-
tacts (thermostat contacts)
Breaking Unit Application Precautions
When using a Braking Resistor Unit, create a sequence to detect overheating of the braking resistor and turn
OFF the power supply to the Inverter.
Three-phase power:
200 to 240 V, 50/60 Hz or
380 to 480 V, 50/60 Hz
* Use a transformer with 200 and 400 V outputs for the power 400 V Inverter.
Braking resistor overheat-
Braking resistor overheat-
ing contacts (Thermal pro-
ing contacts (Thermal pro-
tector contacts)
tector contacts)
Braking
Resistor
Unit
Braking Unit #2
Cooling fin overheating con-
tacts (thermostatic contacts)
Fig 2.17 Connecting Braking Units in Parallel
MCCB
Overload relay trip contact
of Braking Resistor Unit
MC MA
Fault contacts
Fig 2.18 Power Shutoff Sequence
Wiring Main Circuit Terminals
Braking resistor overheat-
ing contacts (Thermal pro-
tector contacts)
Braking Braking
Resistor Resistor
Unit Unit
Braking Unit #3
Cooling fin overheating con-
tacts (thermostatic contacts)
R/L1
S/L2
T/L3
Inverter
25
2-