Input Signal Error Detection Function - Mitsubishi L Series User Manual

8.7

Input Signal Error Detection Function

Detects any analog input value that is outside the setting range. By using the input signal error detection extension
function, the upper limit detection, lower limit detection, or disconnection detection can be set.
For details on the input signal error detection extension function, refer to the following.
Input signal error detection extension function (
Analog
input value
Input signal error detection signal (XC)
(1) Notification of input signal error
If the analog input value is above the input signal error detection upper limit value, or below the input signal error
detection lower limit value, the error is notified by Input signal error detection flag (Un\G49), Input signal error
detection signal (XC), and the flashing ALM LED.
In addition, alarm code 110
The alarm code that is stored is shown below:
For details on alarm codes, refer to the following.
• Alarm code list (
Input signal error
detection upper
limit value
CH1 Analog input
value
Input signal error
detection lower
limit value
Error detection
CH1 Input signal error
detection flag (Un\G49.b0)
CH1 A/D conversion
completed flag (Un\G10.b0)
Error clear request (YF)
gets stored in Latest error code (Un\G19).
110
Fixed
Input signal error channel number
Page 163, Section 11.5)
Page 74, Section 8.8)
Detected
Not detected
Included
ON
OFF
ON
OFF
ON
OFF
ON
CHAPTER 8 FUNCTIONS
Normal input value
Time
OFF
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