Omron SMARTSLICE - 04-2008, Operation Manual

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Power Supply Wiring Section 3-2
Installing the End
Plates
Always secure the Slice I/O Terminal on the DIN Track by installing End Plates
on both sides of the Terminal. First hook the bottom of the End Plate on the
bottom edge of the DIN Track (1), attach the top of the End Plate, and pull the
End Plate down onto the top edge of the DIN Track (2).
Tighten the End Plate’s securing screw.
Note Always secure the Slice I/O Terminal by attaching End Plates on both ends.
3-2 Power Supply Wiring
Both the Slice I/O Terminal power supply and the external I/O power supply
are connected with screwless clamping-type terminals on the DeviceNet
Communications Unit.
3-2-1 Connecting the Slice I/O Terminal Power Supply
The DeviceNet Communications Unit has two sets of power supply terminals
for the following two systems.
Evaluating the Power
Supply Requirements
Unit Power Supply The maximum power consumption for a Slice I/O Terminal is 80 W per block.
1,2,3... 1. Calculate the power consumption of all of the Slice I/O Units connected to
the DeviceNet Communications Unit.
2. If the power consumption exceeds 80 W, mount a Right Turnback Unit
(GRT1-TBR) on the Slice I/O Unit at the point where the power consump-
tion is less than 80 W.
3. Connect the 24 VDC Unit power supply to the Left Turnback Unit (GRT1-
TBL).
1
2
End Unit
End Plate
End Plate
Power supply
terminals
Description
Unit power supply
terminals These terminals supply power to the DeviceNet Communica-
tions Unit’s internal circuits as well as the connected Slice I/O
Units’ internal circuits (supplied through the Slice bus).
I/O power supply ter-
minals These terminals supply power to the external I/O that is con-
nected to the Terminal’s Slice I/O Units.