The following section describes the specifications of each indicator.
l
TS Indicator
The TS indicator shows the current status of the Safety Output Unit and its communications status
with the NX Bus Master.
The following table lists the possible states for this indicator and what they mean.
Color Status Meaning
Green
Lit The Unit is operating normally.
Flashing (at 2-s intervals) Initialization is in progress, or I/O allocation information data
is being downloaded from the Sysmac Studio.
Red Lit A hardware error, WDT error, or other critical error has oc-
curred.
Flashing (at 1-s intervals) An NX bus communications error, I/O allocation information
data error, or other recoverable minor error that is attributed
to the NX bus has occurred.
--- Not lit
• There is no Unit power supply
• The Unit is restarting
• Waiting for initialization to start
l
FS Indicator
The FS indicator shows the FSoE communications status and safety function status of the Safety
Output Unit.
The following table lists the possible states for this indicator and what they mean.
Color Status Meaning
Green Lit The FSoE connections are established and there are no er-
rors in any Safety I/O Units functions.
Flashing (at 1-s intervals) The FSoE connections are being established.
Red
Flashing (at 1-s intervals) An FSoE communications error, safety output terminal er-
ror
, or other minor error has occurred.
--- Not lit Power is not being supplied or a fatal fault has occurred.
2 Specifications
2 - 39
NX-series Safety Control Unit User's Manual (Z930)
2-3 Safety Output Unit
2
2-3-3 Indicators
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