Omron SYSMAC C200H-AD003 Operation Manual page 120

Error Processing
Value Does Not Change
as Intended
Conversion Values are
Inconsistent
Analog Output Does Not
Change
Output Does Not Change
as Intended
Outputs are Inconsistent
108
Probable cause
The input device's signal range
does not match the input signal
range for the relevant input number
at the Analog Input Unit.
The offset and gain are not
adjusted.
When using the 4 mA to 20 mA
range, the voltage input (+)
terminal and the current input (+)
terminal are not connected.
The ratio conversion function is set
to be used, so the calculation
results are being monitored.
Probable cause
The input signals are being
affected by external noise.
Probable Cause
The output is not set for being
used.
The output hold function is in
operation.
The conversion value is set outside
of the permissible range.
Probable Cause
The output signal range setting is
wrong.
The I/O specifications of the output
device do not match those of the
Analog Output Unit (e.g., input
signal range, input impedance).
The offset or gain is not adjusted.
The ratio conversion function is set
to be used.
Probable Cause
The output signals are being
affected by external noise.
Countermeasure
Check the specifications of the
input device, and match the
settings for the input signal ranges.
Adjust the offset and gain.
Connect the terminals.
Correct the conversion settings.
Countermeasure
Change the shielded cable
connection to the Unit's COM
terminal.
Insert a 0.01-µF to 0.1-µF ceramic
capacitor or film capacitor between
the input's (+) and (–) terminals.
Try increasing the number of mean
value processing buffers.
Countermeasure
Set the output for being used.
Turn ON the Output Conversion
Enable Bit.
Set the data within the range.
Countermeasure
Correct the output signal range
setting.
Change the output device.
Adjust the offset or gain.
Correct the conversion settings.
Countermeasure
Try changing the shielded cable
connection (e.g., the grounding at
the output device).
Section 4-9
Page
81
92
74
89
Page
74
---
82
Page
86
87
68
Page
86
66
97
89
Page
74