Omron SYSDRIVE MX2 SERIES User Manual page 51

Note on Use of Multiple Inverters
If multiple Inverters are using a common input (switch, etc.) and the Inverters are turned on at
different timings, a sneak current path will be generated as shown below and the input may be
recognized as ON when it is actually OFF.
In this case, be sure to insert a diode (rating: 50 V/0.1 A) in the location shown below to prevent
the sneak current path.
1. For Sink Logic
Shorting line
Shorting
line
Switch OFF
Without this diode, a sneak current path is generated
and the input turns ON when the switch is OFF.
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
Power ON
P24
PSC
SC
Input ON
S1
Add a diode
Power OFF
P24
PSC
SC
S1
2-2 Wiring
Power ON
P24
PSC
SC
Input OFF
S1
Power OFF
P24
PSC
SC
S1
Switch OFF
Install a diode instead of the shorting
bar to prevent the sneak current path.
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