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Operation
8.3
Display elements
The expansion card has LEDs to display the status of the operating states.
POWER
RUN
CONFIG
STO
}
Legend
Operating Manual PMCprotego S2-2(-C)
1002529-EN-04
LED
Name
Colour
POWER
- - -
Green
RUN
- - -
Green
Green
CONFIG
- - -
Yellow
STO
- - -
Red
LED on
LED off
LED flashes
Meaning
Status
Supply voltage is
not present
Supply voltage is
present
System not ready
System ready
("RUN" status)
System boots ("Star-
tup" status)
Normal operation
Downloading the
configuration data
No error occurred,
safety function SS1
not triggered, oper-
ating status STO is
inactive
Error occurred or
safety function SS1
triggered, operating
status STO is active
70
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