2-24
2-2 Wiring
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-A@@@@)
2
Design
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 or use external power supply circuits to prevent the sneak
current path.
1. For Sink Logic
Add diodes.
P24
PSC
SC
S1
Shorting line
P24
PSC
SC
S1
Power ON
Power OFF
Shorting
line
Input ON
P24
PSC
SC
S1
P24
PSC
SC
S1
Switch OFF
Install a diode instead of the shorting
bar to prevent the sneak current path.
Power ON
Power OFF
Input OFF
P24
PSC
SC
S1
P24
PSC
SC
S1
Power ON
Power OFF
Input OFF
Change to an external
power supply.
24-VDC
power
supply
Switch OFF
A sneak current path will not occur
if the short bar is removed and an
external power supply is used.
Switch OFF
Without this diode, a sneak current path is
generated and the input turns ON when the
switch is OFF.
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