Mitsubishi MELESEC-ST User Manual page 37

3 SYSTEM CONFIGURATION
DIN rail
External SYS.
power supply
100VAC
AC/DC
Fuse
AC/DC
External AUX.
power supply
Fig. 3.4 Example of configuration where I/O
Modules *3 and Contact Output
Modules Are Used Together
(Online module change to be executed)
External SYS.
power supply
External AUX.
power supply
Fig. 3.6 Example of configuration where intelligent function Modules, I/O Modules *3
and Contact Output Modules *2 Are Used Together (Online module change to
be executed)
*1: DC power supply (60VDC or less) is used as external power supply connected to contacts
*2: AC power supply is used as external power supply connected to contacts
*3: Excluding contact output modules
3 - 9
A can be replaced by B.
A B
24VDC
(AUX. input)
External AUX.
power supply
AC/DC
DIN rail
100VAC
AC/DC
Fuse
AC/DC
DIN rail
External SYS.
power supply
100VAC
AC/DC
AC/DC
External AUX.
power supply
Fig. 3.5 Example of configuration where I/O
Modules *3, Contact Output Modules *1
and intelligent function Modules Are Used
Together (Online module change to be
executed)
A can be replaced by B.
A B
24VDC
24VDC
(AUX. input)
(AUX. input)
AC/DC AC/DC
External AUX. power supply
MELSEC-ST
A can be replaced by B, C or D.
A B
Fuse
AC/DC
External AUX. power
supply
24VDC
(AUX. input)
C
24VDC
(AUX. input)
24VDC
(AUX. input)
AC/DC
3 - 9