Design Guide | iC7 Series Air-cooled System Modules
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Figure 44: Example Control Connection with a Star Coupler Board: 3 Power Units in Parallel
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Control board
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Star coupler board
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Maximum 3 power units
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Definitions of the Indicator Lights on the Star Coupler Board
Table 22: Definitions of the Indicator Lights on the Star Coupler Board
Indicator name
Function (color)
Description
Off
During booting, until the software configuration is executed.
Blinking 10 Hz
(green)
Software updating.
On (green)
Board configuration succeeded and all port communication works as intended.
Configuration status
On (red)
Board configuration failed or any port communication failed on startup or during
run.
24 V power status
On (white)
Star coupler board is powered.
Off
No link established.
Power unit link status
(X301–X316)
On (green)
Link established.
Off
No link established.
Control link status
On (green)
Link established.
Off
No link or 10 Mbps link
Ethernet speed
On (orange)
100 Mbps link
Off
No link
On (green)
Link OK, no data
Ethernet link activity
Blinking (green)
Link OK, data communication
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