Omron SmartSlice GRT1 Series - Page 318

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Troubleshooting by Unit Section 9-5
Analog I/O Units and
Temperature Input
Units
Model Details Probable cause Remedy
Analog I/O Units
GRT1-AD2
GRT1-DA2V
GRT1-DA2C
The status flag does not turn
ON even when the monitor
value is exceeded.
• The relevant Smart function
is not enabled.
• The Status Flags will be
OFF unconditionally if the
monitor value is 0.
• Enable the relevant function.
• Set the monitor setting to a
value other than 0.
• The analog input value is not
as expected even when the
input type, display mode, or
unit is changed. Alterna-
tively, the analog output is
not output as expected.
• Unit does not operate as
expected even if the data
allocated to the I/O or the
function enable bit is
changed.
The new settings will not be
reflected without resetting
the Unit by turning the Unit's
power OFF and ON or reset-
ting the Unit from the Config-
urator.
Either turn the Unit’s power OFF
and ON or reset the Unit from the
Configurator.
• The analog data is not as
expected or the error in the
analog data is large.
• Disconnection is detected
even though there is no dis-
connection (GRT1-AD2
only).
The functions are not cor-
rectly allocated to the I/O
data.
Check again whether the type of
analog data to be set is correct
and allocation to I/O data is per-
formed.
Scaling is performed. • If scaling is performed, check
again whether the scaled value
is correct.
• Turn scaling OFF if it is mistak-
enly turned ON.
User adjustment error is
large.
Perform user adjustment again.
The input range setting is
incorrect.
The ranges for detecting discon-
nection are 1 to 5 V and 4 to
20 mA. Check whether the input
ranges are correct.
The input range or output
range cannot be changed with
the external switch.
SW4 is turned OFF (default). Turn SW4 ON.
User adjustment is not
accepted.
An attempt has been made
to perform adjustment with
input that is outside the set-
ting range.
• Input the correct input voltage
(current) and perform adjust-
ment again.
• Review the adjustment system
again.
Functions cannot be set using
the Configurator.
SW4 is turned ON. Turn SW4 OFF.