25
dF
Deadband
Avoid frequent alarm on-off action because of the fluctuation of PV
0
～
200
units
CtrL
Control mode
0: on-off control. For situation not requiring high precision;
1: AI MPt control. Allowed to quick activate auto-tuning (pressing
in basic
display status.)
2: AI MPt control. Activate auto-tuning.
3: After auto-tuning finished, the instrument automatically set CtrL=3, and quick
auto-tuning function is disabled.
4: Comparing with the control mode of CtrL=3, Parameter P is defined as 10 times as
its original value. Ex., if set P=5 incase of Ctrl=3 and set P=50 incase of Ctrl=5, then
these 2 setting have then same control effect. In the application of rapidly changed
temperature (changes by more than 100
℃
/second), pressure or flow control, or in the
application where inverter is used to control water pressure, P is often very small,
even smaller than 1. If CtrL is set to 4, then parameter P can be enlarged 10 times,
and so finer control is obtained.
0
～
4