4 Part Names and Functions
4 - 6
NX-series EtherCAT Coupler Unit User’s Manual (W519)
The UNIT PWR indicator shows the status of the Unit power supply.
The I/O PWR indicator shows the status of the I/O power supply.
The L/A IN indicator shows the status of the inputs in EtherCAT communications.
The L/A OUT indicator shows the status of the outputs in EtherCAT communications.
UNIT PWR Indicator
Color Status Meaning
Green
Lit. Power is currently supplied from the Unit power
supply.
---
Not lit. No power is currently supplied.
I/O PWR Indicator
Color Status Meaning
Green
Lit. Power is currently supplied from the I/O power sup-
ply.
---
Not lit. No power is currently supplied.
L/A IN Indicator
Color Status Meaning
Green
Lit. A link was established in the physical layer.
Flickering A link was established and input communications
are in operation.
---
Not lit. A link was not established in the physical layer.
L/A OUT Indicator
Color Status Meaning
Green
Lit. A link was established in the physical layer.
Flickering A link was established and output communications
are in operation.
---
Not lit. A link was not established in the physical layer.
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