Indicators - Omron CJ1W-CT021 Operation Manual

Components and Switch Settings
2-1-2

Indicators

CT021
RUN ERC
CH1 A
CH2 A
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
RUN Green
ERC Red
ERH Red
CH1/2 Green
A/B/ Z Yellow
I0/I1 Yellow
O0/O1 Yellow
ERH
B Z I0 O0
B Z I1 O1
State Description
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).
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.
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.
ON Channel 1/2 (i.e. Counter 1/2) is ready to
count (the corresponding counting gate is
open).
OFF Counter 1/2 is not ready to count (the
corresponding counting gate is closed).
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.
ON Digital Input (I0/I1) is turned ON.
OFF Digital Input (I0/I1) is turned OFF.
ON Digital Output (O0/O1) is turned ON.
OFF Digital Output (O0/O1) is turned OFF.
Section 2-1
27