Precautions For Wiring The Ethercat Slave Terminal Together With Computers And Other Peripheral Devices; With Computers And Other Peripheral Devices7-13 - Omron NX-ECC201 User Manual

7-2-4 Precautions for Wiring the EtherCAT Slave Terminal Together
with Computers and other Peripheral Devices
When you connect a computer or other peripheral device to the following Unit, either ground the 0-V
side of the external power supply (i.e. Unit power supply) or do not ground it at all.
• EtherCAT Coupler Unit with a non-isolated DC power supply (internal power supply cir-
cuits)
Depending on how the peripheral device is grounded, the external power supply (i.e. Unit power sup-
ply) may be shorted. Never ground the 24-V side of the power supply, as shown in the following fig-
ure.
Grounding That Causes a 24-V Power Supply to Short
Peripheral device
(e.g., computer)
NX-series EtherCAT Coupler Unit User's Manual (W519)
Caution
EtherCAT Coupler Unit
Non-isolated DC power supply
(internal power supply circuit)
Peripheral
device cable
Ground
terminal
Unit power supply
NX Unit power supply
24 V 0 V
7 Wiring
7
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