Mitsubishi MELSEC-Q Series User Manual page 32

3
SPECIFICATIONS
[Example 1: Measured temperature value when the temperature input value is changed
from 250.0
[Example2: Measured temperature value when the change of temperature input value is a
waveform with ringing]
3
- 9 3.2 Function List
3.2.1 Temperature conversion system
to 260.0 ]
When the time constant setting is 3200ms (3.2s), the measured temperature value
changes as indicated below.
At 3200ms (3.2s) after the temperature input value is changed to 260.0
measured temperature value reaches 63.2% (256.3
processing is selected.
Temperture input value
262.0
260.0
258.0
256.0
254.0
252.0
250.0
0 3200
The changes of measured temperature values when the time constant setting is
1280ms(1.28s), 640ms(0.64s) or the moving average processing is 4 times are shown
below.
Temperature input value
Measured temperature value
(Moving average processing 4 times)
262.0
260.0
258.0
256.0
254.0
252.0
250.0
1000
0
Measured temperature value
Elapsed time (ms)
Measured temperature value
(Time constant setting 640ms)
Measured temperature value
(Time constant setting 1280ms)
2000 3000 4000 5000
Elapsed time (ms)
, the
)of the value when sampling
2620
2600
2580
2560
2540
2520
2500
2620
2600
2580
2560
2540
2520
2500
6000 7000