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7 GRT1-ECT Installation
GX-series EtherCAT Slave Unit User’s Manual
7-3 Inst
allin
g the Power Sup
p
lies
7
7-3
-1 Precautions for Pow
er Supplie
s
7-3
Installing the Power Supplies
Power supplies required to operate the EtherCAT network are:
•
Unit power supply: For communication and internal operation of Slaves.
•
I/O power supply: For input/output operations of external I/O devices of each Slave.
The GRT1-ECT has 2 24 VDC power supply terminals:
These terminals are screwless clamp terminals.
This section explains how to install the Unit power supply and I/O power supply.
Observe following precautions when installing Power Supplies:
•
Take sufficient safety measures.
•
Ensure the allowable current of cables and connectors is not exceeded
•
Check the voltage drop.
The supplied voltage for a Slave is directly related to the distance (cable length) from the power
supply. Check if voltage of the Slave most far from the power supply stays within specifications.
•
Consider the use of multiple power supplies.
The layout and grouping of power supplies determines what stops when a power supply error occurs.
If you want to avoid stopping the entire system, we recommend to set power supplies at several
locations and supply power to groups of Slaves, or take similar measures.
•
When the power supplied is generated by multiple power supplies, then the line current, voltage drop, and
cable dimensions can be influenced. Check if all parameters stay within specifications.
Label
Power supply terminal
Description
A
Unit power supply
terminal
These terminals supply power to the EtherCAT Communica-
tion Unit’s internal circuits as well as the connected SmartSlice
I/O Units’ internal circuits (supplied through the SmartSlice
bus)
B
External I/O power
supply terminal
These terminals supply power to the external I/O that is con-
nected to the System’s SmartSlice I/O Units
7-3-1
Precautions for Power Supplies
General Precautions
Multiple power supplies
UNIT
+V
-V
+V
-V
DC24V
INPUT
I/O
A
24 VDC
24 VDC
B
Summary of Contents for GRT1-ECT SmartSlice
Page 3: ...GRT1 series EtherCAT Communication Unit Operation Manual Revised March 2012 ...
Page 18: ...15 GRT1 series EtherCAT Communication Unit Operation Manual ...
Page 30: ...1 EtherCAT Network 1 8 GRT1 series EtherCAT Communication Unit Operation Manual ...
Page 38: ...2 EtherCAT Communication details 2 8 GRT1 series EtherCAT Communication Unit Operation Manual ...
Page 52: ...4 GRT1 ECT Details 4 10 GRT1 series EtherCAT Communication Unit Operation Manual ...
Page 76: ...6 GRT1 ECT Troubleshooting 6 12 GRT1 series EtherCAT Communication Unit Operation Manual ...
Page 136: ...A4 Appendix Object Dictionary A4 16 GRT1 series EtherCAT Communication Unit Operation Manual ...
Page 140: ...Revision 2 GRT1 ECT series EtherCAT Slave Unit User s Manual ...