Mitsubishi L Series User Manual

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(2) Operation of the input signal error detection function
The digital output value on the channel on which the error was detected is held at the value just before the error
was detected, and A/D conversion completed flag (Un\G10) and A/D conversion completed flag (XE) are turned
OFF.
In addition, once the analog input value returns within the setting range, A/D conversion resumes regardless of
the reset of Input signal error detection flag (Un\G49) and Input signal error detection signal (XC). After the first
update, A/D conversion completed flag (Un\G10) for this channel turns back ON. (ALM LED remains flashing.)
(3) Detection cycle
This function is executed per sampling cycle.
(4) Clearing the input signal error detection
After the analog input value returns within the setting range, turn Error clear request (YF) OFF → ON → OFF.
When the input signal error is cleared, the A/D converter module results in the following state:
• Input signal error detection flag (Un\G49) is cleared.
• Input signal error detection signal (XC) turns OFF.
• The ALM LED turns off.
• The alarm code 110, which is stored in Latest error code (Un\G19), is cleared.
(5) Setting the input signal error detection upper and lower limit values
Set the input signal error detection upper and lower limit values based on the input signal error detection setting
value. (Set the values in increments of 1 (0.1%).)
Input signal error detection setting value is reflected in both the input signal error detection upper and lower limit
values.
(a) Input signal error detection upper limit value
Add the gain value to "Input range width (gain value – offset value) multiplied by input signal error detection
setting value". The input signal error detection setting value is calculated by the following formula:
(b) Subtract the gain value from Input signal error detection lower limit value
"Input range width (gain value – offset value) multiplied by input signal error detection setting value". The input
signal error detection setting value is calculated by the following formula:
=
Input signal error detection
setting value
Gain value of each range-
Input signal error detection
upper limit value
Gain value of each range - Offset value of each range
1000
=
Input signal error detection
setting value
Input signal error detection
lower limit value
-
Lower limit value of each
range
Gain value of each range - Offset value of each range
1000

Mitsubishi L Series Specifications

General

Brand	Mitsubishi
Model	L Series
Category	Engine
Language	English