62
Character
Name, Function, Setting Range
Factory Default
Manual reset 1
0.0
• Sets reset value 1 manually.
• Setting range: 1000.0
DC voltage, current inputs: The placement of the decimal point
follows the selection.
MV rate-of-change 1
0 %/second
• Sets MV rate-of-change 1 (changing value of MV for 1 second).
Setting the value to 0 disables the function.
See “MV rate-of-change” on p.55.
• Setting range: 0 to 100 %/second
When PID zone function “Used” is selected in [PID zone function],
one zone contains from “PID zone value 1” to “MV rate-of-change 1”.
Can be set repeatedly up to 5 zones.
MV rate-of-change 5
0 %/second
• Sets MV rate-of-change 5 (changing value of MV for 1 second).
Setting the value to 0 disables the function.
See “MV rate-of-change” on p.55.
• Setting range: 0 to 100 %/second
[MV rate-of-change]
For Heating control, if PV is lower than SV, output is generally turned from OFF to ON as
shown in (Fig. 8.2.3-1).
If MV rate-of-change is set, the output can be changed by the rate-of-change (Fig. 8.2.3-2).
This control is suitable for high temperature heaters (which are made from molybdenum,
tungsten or platinum, etc., and used at approx. 1500 to 1800 ) which are easily burnt out
from turning on electricity rapidly.
Usual output
Output when MV rate-of-change is set
(Fig. 8.2.3-1)
(Fig. 8.2.3-2)
20 %/sec
10 %/sec
5 sec
OFF
100 %/sec
1 sec
10 sec
ON