Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 60

In the channel where a value out of the range is set, an input signal error detection setting value range error
(error code: 1C1H) occurs.
3.
Set "Input signal error auto-clear enable/disable setting" to "Enable" or "Disable".
Setting example
■Setting example of the input signal error detection
In the channel where the following values are set, an input error is detected when an analog input value falls below -10.2 V or
exceeds +10.2 V.
Item
Input range
'Input signal error auto-clear enable/disable setting' (Un\G304)
'CH1 Input signal error detection setting' (Un\G528)
Assign the following values in a formula to determine the input signal error detection lower limit set value and input signal error
detection upper limit set value.
• Input signal error detection lower limit value: -10.2 V
• Input signal error detection upper limit value: +10.2 V
• Range lower limit value: -10 V
• Offset value: 0.0 V
• Gain value: 10.0 V
[Calculation of lower limit value]
Input signal error detection lower limit setting value
Set 'CH1 Input signal error detection lower limit set value' (Un\G529) to 20 (2.0%).
[Calculation of upper limit value]
Input signal error detection upper limit setting value
Set 'CH1 Input signal error detection upper limit set value' (Un\G530) to 20 (2.0%).
The following figure shows the operation of the input signal error detection.
Analog input value
+10.2 V
Input signal error detection
upper limit value
Gain value +10 V
Offset value 0 V
Range lower -10 V
limit value
-10.2 V
Input signal error detection
lower limit value
1 FX5-4AD
58
1.4 Functions
-10.0 - (-10.2)
=
10.0 - 0.0
= 20 (2.0%)
10.2 - 10.0
=
10.0 - 0.0
= 20 (2.0%)
Error
detection
Setting value
-10 to +10 V
Disable (1)
Upper and lower limit detection (1)
× 1000
× 1000
Error detection
Detection range
Outside detection range
Included
0.2 V
(2.0% of 10 V)
10 V
(Gain value - Offset value)
0.2 V
(2.0% of 10 V)
Time