Wiring The Grt1-Prt; Connecting The Smartslice I/O System Power Supply - Omron GRT1 - 27-11-2006 Operation Manual

Wiring the GRT1-PRT

2-3

Wiring the GRT1-PRT

2-3-1

Connecting the SmartSlice I/O System Power Supply

Evaluating the Power
Supply Requirements
Unit Power Supply
1,2,3...
Note
I/O Power Supply
1,2,3...
Note
20
The PROFIBUS Communication Unit has two sets of power supply terminals
for the following two systems.
Power supply
terminals
Unit power supply These terminals supply power to the PROFIBUS Communica-
terminals tion Unit's internal circuits as well as the connected Smart-
Slice I/O Units' internal circuits (supplied through the
SmartSlice bus).
I/O power supply ter- These terminals supply power to the external I/O that is con-
minals nected to the System's SmartSlice I/O Units.
Both the SmartSlice I/O System power supply and the external I/O power sup-
ply are connected with screwless clamping-type terminals.
The maximum power consumption for SmartSlice I/O Units is 80 W per block.
1. Calculate the power consumption of all of the SmartSlice I/O Units con-
nected to the PROFIBUS Communication Unit. 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 con-
sumption is less than 80 W.
3. Connect the 24 VDC Unit power supply to the Left Turnback Unit (GRT1-
TBL).
1. The GRT1-TBL is equipped with separate power supply terminals for the
Unit power supply and I/O power supply.
2. When dividing the power supply, always wire (supply) the power from the
same power supply (Refer to the Wiring Example).
The maximum I/O current consumption is 4 A.
1. Calculate the total current consumption used by all external I/O of the con-
nected SmartSlice I/O Units (including other Units like Turnback Units).
Refer to the GRT1 Series SmartSlice I/O Units Operation Manual (W455)
for the current value for each SmartSlice I/O Unit.
2. If the current consumption exceeds 4 A or you want to provide separate
systems for inputs and outputs, divide the SmartSlice I/O Units at the de-
sired point with a GRT1-PD2 I/O Power Supply Unit and provide a sepa-
rate external I/O power supply.
3. It is also possible to provide a separate external I/O power supply at a Left
Turnback Unit (GRT1-TBL).
1. The GRT1-TBL is equipped with separate power supply terminals for the
Unit power supply and I/O power supply.
2. Always use isolated power supplies for the power supplies.
3. Power is not supplied through the GCN2-100 Turnback Cable.
(Refer to the Wiring Example.)
Section 2-3
Description