Power Supply Wiring - Omron SYSMAC CS1D-PD Series Operation Manual

Power Supply Wiring

5-3

Power Supply Wiring

RDY
COMM 1
COMM 2
The power supply systems are divided as follows: Power section, control cir-
cuits, CS1D Racks, and DC I/O. Wire each of these separately.
When using a duplex CS1D System, use a separate power source for each of
the two Duplex Power Supply Units.
Provide an emergency stop circuit to control the power supply to the con-
trolled system so that power is supplied to the controlled system only when
the PLC is operating and the RUN output is ON. Connect an external relay to
the RUN output from the Power Supply Unit.
MCCB1 MCCB2
200 V AC
CP
CP
The Duplex CPU and Expansion Backplanes for a CS1D PLC support Duplex
Power Supply Units. If anything happens to interrupt the power supply from
one of the Power Supply Units, the other one will continue supplying power to
the Unit on the Rack. To ensure that the PLC will continue operating even if
the power supply to the Power Supply Unit is interrupts, always provide power
to two Duplex Power Supply Units from different power sources.
Power section
Ry
Control circuits
Insulating
transformer
Tr
PLC RUN output
Insulating
transformer
Tr
Section 5-3
DC I/O
Stabilized
+
DC power
supply −
Ry
LEFT CPU
RIGHT CPU
DPL SW
ON
INIT.
SW
ON
DUPLEX
175