5 - 4 5 - 4
5 POWER DISTRIBUTION MODULES
MELSEC-ST
(2) 5VDC, 24VDC internal wiring
Input module
Input module
Head
module
Bus refreshing
module
Power
feeding
module
Output module
Bus refreshing
module
Output module
Bus refreshing
module
External devices
(Sensors, etc.)
5VDC internal wiring
24VDC internal wiring
External devices
(Lamps, etc.)
External devices
(Lamps, etc.)
DC/DC
DC/DC
DC/DC
*2
*2
*2
*1
*1
*4
DC5V
SG
DC5V
SG
DC5V
SG
*4
DC24V
DC24V
DC24V
DC24V
DC24V
DC24V
*3
*3
*3
*3
*3
Internal
circuit
Internal
circuit
Internal
circuit
Internal
circuit
Internal
circuit
Internal
circuit
Output
circuit
Output
circuit
Input
circuit
Input
circuit
External
AUX.
power
supply
External
SYS.
power
supply
External
AUX.
power
supply
*4
External
AUX.
power
supply
*4
External
AUX.
power
supply
1: 5VDC is supplied to the modules mounted between the bus refreshing module (or
head module) and the next bus refreshing module by the internal wiring of the
base modules.
The total 5VDC internal current consumption of the slice modules mounted
between the bus refreshing module and the next bus refreshing module should not
exceed the maximum rated output current 2.0A.
2: 24VDC is distributed to the slice modules mounted between the power feeding
module (or bus refreshing module) and the next power feeding module (or bus
refreshing module) by the internal wiring.
The total 24VDC current of the slice modules mounted between the power feeding
module (or bus refreshing module) and the next power feeding module (or bus
refreshing module) should not exceed the maximum rated current (I/O modules:
8.0A, Intelligent function modules: 3.0A).
3: Indicates the portion where the 5VDC or 24VDC internal wiring is disconnected by
the power distribution module.
4: When a contact output module is used as an output module, an external AUX.
power supply (for relay load) must be prepared separately.
Summary of Contents for MELESEC-ST
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Page 23: ...A 21 A 21 MEMO...
Page 114: ...10 22 10 22 10 MOUNTING AND INSTALLATION MELSEC ST MEMO...
Page 125: ...11 11 11 11 11 EMC AND LOW VOLTAGE DIRECTIVE MELSEC ST MEMO...
Page 163: ...Index 2 Index 2 MEMO Ind...
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