Mitsubishi Electric MELSEC-Q series User Manual page 54

(b) Operation after an alert was output
After an alert was output, when a digital output value is less than the process alarm upper lower limit value or
more than process alarm lower upper limit value, Normal (0) is stored in the corresponding bit of Warning
output flag (Process alarm) (Un\G50) for the channel.
When digital output values in all channels are within the setting range, Warning output signal (X8) turns off, and
the ALM LED turns off.
However, the alarm code 10  which is stored in Latest error code (Un\G19) is not cleared. Clear the alarm
code 10  by turning on then off.
(c) Warning detection period
When time average is specified, the function is executed per set average time. When count average is
specified, the function is executed per set average count.
For other digital conversion methods, the function is executed in each sampling cycle.
(d) Warning detection target
When the scaling function is enabled, CH Scaling value (Un\G54 to Un\G61) is applied to the warning
detection.
For CH1 Process alarm lower lower limit value (Un\G86) to CH8 Process alarm upper upper limit value
(Un\G117), set values considering the scale conversion.
(e) Setting procedure
1.
Set Enable (0) to Conversion enable/disable setting (Un\G0).
2.
Set Enable (0) to Warning output setting (Un\G48).
3.
Set values in CH1 Process alarm lower lower limit value (Un\G86) to CH8 Process alarm upper
upper limit value (Un\G117).

CH Process alarm upper upper limit value (Un\G89, Un\G93, Un\G97, Un\G101,
Un\G105, Un\G109, Un\G113, Un\G117)

CH Process alarm upper lower limit value (Un\G88, Un\G92, Un\G96, Un\G100,
Un\G104, Un\G108, Un\G112, Un\G116)

CH Process alarm lower upper limit value (Un\G87, Un\G91, Un\G95, Un\G99,
Un\G103, Un\G107, Un\G111, Un\G115)

CH Process alarm lower lower limit value (Un\G86, Un\G90, Un\G94, Un\G98,
Un\G102, Un\G106, Un\G110, Un\G114)
4.
Turn on then off Operating condition setting request (Y9).
Set the warning output setting as follows:
Process alarm upper upper limit value
Process alarm lower lower limit value
52
Item

Process alarm upper lower limit value
Setting range
-32768 to 32767

Process alarm lower upper limit value
