Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 53

■Application examples of rate alarms
A rate alarm serves to monitor that the variation rate of a digital output value lies in a limited range as shown below:
Ex.
To monitor that a rising rate of a digital output value is within the specified range
Digital output value change rate (%)
+30%
+20%
0
Ex.
To monitor that a drop rate of a digital output value is within the specified range
Digital output value change rate (%)
0
-20%
-30%
Ex.
To monitor that a change rate of a digital output value is within the specified range
Digital output value change rate (%)
+10%
0
-10%
Rate alarm upper limit value
Rate alarm lower limit value
Rate alarm upper limit value
Rate alarm lower limit value
Rate alarm upper limit value
Rate alarm lower limit value
Time
Time
Time
1
1 FX5-4AD
51
1.4 Functions