Hardware reference
HARDWARE REFERENCE MANUAL
250
Revision 5.0
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Install the GRT1-ECT and the SmartSlice I/O Units on a DIN rail. To
install a GRT1-ECT on the DIN rail, press it onto the DIN track from the
front, and press the unit firmly until it clicks. Check that all DIN rail sliders
of the unit are locked onto the DIN rail.
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To remove the GRT1-ECT from the DIN rail, release the sliders from the
DIN rail with a screwdriver, and pull the unit straight from the DIN rail.
Connections
fig. 134
Connect the first SmartSlice I/O Unit to the GRT1-ECT:
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Align the sides of the GRT1-ECT and the SmartSlice I/O Unit.
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Slide the SmartSlice I/O Unit to the rear until it clicks onto the DIN rail.
See the GRT1 Series SmartSlice I/O Units Operation Manual for more
information on connecting additional SmartSlice I/O Units, Turnback Units,
End Units and end plates.
Wiring
The GRT1-ECT has 2 power supply terminals. Both power supply terminals
have screwless clamping-type connections.
To determine the power supply requirements, do the steps below.
The maximum power consumption for SmartSlice I/O Units is 80 W per
block.
1. Calculate the power consumption of all SmartSlice I/O Units connected
to the GRT1-ECT. Refer to the GRT1 Series SmartSlice I/O Units
Operation Manual (W455) for the power value for each SmartSlice I/O
Unit.
2. If the power consumption exceeds 80 W, mount a Right Turnback Unit
(GRT1-TBR) on the SmartSlice I/O Unit at the point where the power
consumption is less than 80 W.
3. Connect the 24 VDC unit power supply to the Left Turnback Unit
(GRT1-TBL).
Caution
Do not touch the connectors on the side of GRT1-ECT and the
SmartSlice I/O Units.