Using A Braking Unit And Three Braking Resistor Units In Parallel - Omron I537-E2-01 User Manual

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Using a Braking Unit and Three Braking Resistor Units in Parallel

This example shows wiring for using three Braking Resistor Units in parallel.
A sequence is required to turn OFF the
power supply for the thermal overload relay
trip contacts of the Braking Resistor Unit.
MCCB
3-phase power
380 to 480 V 50/
60 Hz
Overload relay trip contact
of Braking Resistor Unit
Forward Run/Stop
Reverse Run/Stop
Braking Unit
External fault
* Disable stall prevention during deceleration by setting L3-04 to Resistor Unit. The motor may
not stop within the deceleration time if this setting is not changed.
R/L1
Inverter
S/L2
T/L3
Voltage
setting
Fault contacts
Forward run command
(forward run when ON
Reverse run command
(reverse run when ON)
Fig 10.3
Thermal Thermal
protector protector
Braking
Resistor
Unit
Braking Unit
Thermal switch
Thermal switch
Motor
U/T1
V/T2
W/T3
cooling Fan
Ground to 10 Ω max.
Fault contact output
Wiring Examples
Thermal
protector
Braking Braking
Resistor Resistor
Unit Unit
9
10-