Omron CRT1 - 10-2008 Operation Manual page 521

Troubleshooting
Model
Slave Units with The short-circuit detection sta-
Power Short-circuit tus does not turn OFF after a
Detection Function power short-circuit has been
detected, even though the
error has been fixed.
Slave Units with The Unconnected Line Detec-
Unconnected Line tion Status Flag turned ON for
Detection Function an unused input.
The Unconnected Line Detec-
tion Status Flag turned ON
even though the sensor power
supply was connected.
The short-circuit detection sta-
tus does not turn OFF after a
unconnected line has been
detected, even though the
error has been fixed.
Slave Units with Load The short-circuit detection sta-
Short-circuit Detec- tus does not turn OFF after a
tion Function load short-circuit has been
detected, even though the
error has been fixed.
Slaves with Discon- The Disconnected Line Detec-
nected Line Detec- tion Status Flag turned ON for
tion an unused output.
The Disconnected Line Detec-
tion Status Flag turned ON
even though the external load
was connected.
The short-circuit detection sta-
tus does not turn OFF after a
load short-circuit has been
detected, even though the
error has been fixed.
Analog I/O Slave The status does not turn ON
Units and Tempera- even if the monitor value is
ture Input Units exceeded.
• The expected analog input
• The Unit does not operate as
498
Problem
value is not received or the
expected analog output is not
output after changing the
input type, display mode, or
unit.
expected after changing the
allocated I/O data or a func-
tion enable bit.
Cause
The status will not turn OFF
until the power for the node
where the error was detected
is reset.
Unconnected line detection is
enabled for an unused input.
Current consumption is low.
(Output current: 3 mA max.)
The status will not turn OFF
until the power for the node
where the error was detected
is reset.
The status will not turn OFF
until the power for the node
where the error was detected
is reset.
Disconnected line detection is
enabled for an unused output.
Current consumption is low.
(Output current: 3 mA max.)
The status will not turn OFF
until the power for the node
where the error was detected
is reset.
• The required Analog Smart
Function is not enabled. The
status will be OFF uncondi-
tionally if the monitor value is
set to 0.
The following conditions apply
to Temperature Input Units
only.
• The input's decimal point
position for a Temperature
Input Unit was in the wrong
place when the monitor value
was set.
• The changes will not be
enabled until the power is
cycled or the CX-Integrator is
used to reset the Unit.
Section 12-2
Possible correction
Cycle the communications
power after fixing the error.
Disable unconnected line
detection for that input.
Disable unconnected line
detection for that input (so that
the unconnected line detec-
tion function does not operate.)
Cycle the communications
power after fixing the error.
Cycle the communications
power after fixing the error.
Disable disconnected line
detection for that output.
Disable disconnected line
detection for that output (so
that the disconnected line
detection function does not
operate.)
Cycle the communications
power after fixing the error.
Enable the required function.
Set the monitor value setting to
a value other than 0.
(Check the decimal point posi-
tion then set the monitor value
again.)
Check the decimal point posi-
tion and enter the monitor
value again.
• Cycle the power or reset the
CX-Integrator.