Omron CS1W-CT021, Operation Manual

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Section 2-1
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2-1-2 Indicators
The indicators on the LED-display show the operating status of the Unit. The fol-
lowing table shows the meaning of the indicators.
LED Colour State Description
RUN Green ON Unit is in operation (i.e. Unit has initialised
normally after (re-) starting the Unit).
OFF Unit is not in operation (i.e. Unit was not able
to initialise normally after (re-) starting the
Unit or the power to the Unit is switched OFF).
ERC Red ON Unit has operational failure due to a detected
error. (For a list of all the errors that can cause
an operational failure, see 5-2
"Error codes" ”.)
OFF Unit has no operational failure.
ERH Red ON CPU Unit has operational failure. (For a list of
all the errors that can occur at the CPU Unit
see 5-1
"Error Indicators" )
OFF CPU Unit has no operational failure.
CH1/2/3/4 Green ON Channel 1/2/3/4 (i.e. Counter 1/2/3/4) is ready
to count (the corresponding counting gate is
open).
OFF Counter 1/2/3/4 is not ready to count (the
corresponding counting gate is closed).
A/B/ Z Yellow ON Physical Input A/B/Z has turned ON.
(Every Counter is characterised by the signals
A/B/Z.)
OFF Physical Input A/B/Z is turned OFF.
I0/I1/I2/I3 Yellow ON Digital Input (I0/I1/I2/I3) is turned ON.
OFF Digital Input (I0/I1/I2/I3) is turned OFF.
O0/O1/O2/
O3 Yellow ON Digital Output (O0/O1/O2/O3) is turned ON.
OFF Digital Output (O0/O1/O2/O3) is turned OFF.
W902-E2-03.book Seite 27 Donnerstag, 7. Oktober 2004 2:06 14