Mitsubishi Electric MELSEC-Q series User Manual page 116

(17)CH1 Process alarm lower lower limit value (Un\G86) to CH8 Process alarm
upper upper limit value (Un\G117)
Set the alert output range of the digital output value for each channel. Configure the 4-step setting of process
alarm upper upper limit value, process alarm upper lower limit value, process alarm lower upper limit value and
process alarm lower lower limit value.
For details on the warning output function (process alarm), refer to the following.
• Warning Output Function (Process Alarm) (
(a) Setting range
• Setting range: -32768 to 32767
• The setting must satisfy the following condition: process alarm upper upper limit value  process alarm
upper lower limit value  process alarm lower upper limit value  process alarm lower lower limit value. In
the channel where the condition is not satisfied, an error occurs. The error code (6 ) is stored in Latest
error code (Un\G19) and Error flag (XF) turns on. The process alarm operates in the setting before the
error occurs.
• When using the scaling function, set values considering the scale conversion. For details on the scaling
function, refer to the following.
Scaling Function (
(b) Enabling the setting
Turn on then off Operating condition setting request (Y9) to enable the setting.
(c) Default value
All channels are set to 0.
Since 0 is set as the default value, change the set value to use the process alarm.
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Page 51, Section 4.10 (1))
Page 48, Section 4.9)