Mitsubishi Electric MELSEC iQ-R Series User Manual page 33

Operation example of the rate control function
The following figure shows an operation example when CH1 Rate control enable/disable setting to CH3 Rate control enable/
disable setting are set to Enable (0) and each increase digital limit value is set to 600, 400, and 200.
analog output
V
2.50V
<CH1>
1.25V
Change in the digital
value of internal
Difference
between
the change
V
2.50V
<CH2>
1.25V
Change in the digital
value of internal
Difference
between
the change
V
2.50V
<CH3>
1.25V
Change in the digital
value of internal
Conversion channel 2 3
(Buffer memory)
CH1 Digital value 4000 (1.25V)
CH2 Digital value
4000 (1.25V)
CH3 Digital value 4000 (1.25V)
CH1 Increase digital limit value
CH2 Increase digital limit value
CH3 Increase digital limit value
4000 4600 6400 8000
+600 +1800 +1600
4000 4400 5600 6800
+400 +1200 +1200
4000 4200 4800
Difference
+200 +600 +600
between
the change
1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2
Conversion speed = 80µs
Refresh cycle of output value = 240µs
8000
+1200
5400 6000 6600 7200
+600 +600 +600 +600
8000 (2.5V)
8000 (2.5V)
8000 (2.5V)
600
400
200
t
t
t
7800 8000
+200
1 FUNCTIONS
1.10 Rate Control Function
1
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