Installing A Noise Filter On The Input Side - Omron 3G3JX User Manual

•When using a regenerative braking unit, be sure to include a sequence whereby the power supply
for the Inverter will be turned off in the event of abnormal overheating. Not doing so may result in
fire.
For a regenerative braking unit: Use the error contact output (MA, MB).
Molded-case
circuit breaker
(MCCB)
Power supply
XB OFF
* The items in parentheses indicate terminal symbols for 3G3JX-AE
<Braking Resistors and Braking Resistor Units for the Inverter>
Name
3G3AX-RBU21
Regenerative 3G3AX-RBU22
braking unit
3G3AX-RBU41

Installing a Noise Filter on the Input Side

•The Inverter's output uses high-speed switching, so noise may be transmitted from the Inverter to
the power line, affecting peripheral devices.
•It is recommended that a noise filter be installed on the input side to minimize noise transmission.
(Installing a noise filter on the input side can also reduce the noise from the power line to the
Inverter.)
<Recommended Input Noise Filters for the Inverter>
General
3G3AX-NFI
Magnetic contactor
MC
(MC)
ON
MC
SA
MC
MC
SA
Model
3/1-phase
200 V
3-phase
400 V
EMC-conforming
3G3AX-EFI
Inverter
R/L1 (L1) *
3G3JX
S/L2 (L2)
T/L3 (N/L3)
N/- P/+2
N P
AL1
DCL
DC reactor
AL2
P RB R1 R2
Regenerative braking unit
.
Specifications
For general use (with built-in resistor)
For heavy instantaneous regenerative power
(with built-in resistor)
For general use (with built-in resistor)
2-2 Wiring
2
+1
2-18