Chapter 4 Parameter settings and functions
34
4.2.2 MV Upper/lower limit setting
The setting of the MV upper/lower limit limits the amount of operation of the
thermostat, which is beneficial to safety control.
For heating and cooling control, the cooling MV is prefixed with “-”, so the upper
heating limit is controlled to + value and the lower cooling limit is controlled to - value.
Paramet
er
Associated
parameter
parameter
Setting range
Factory
Default
Unit Com address
Master
output
function
Cooling
Heating
CH1 MV Lower limits 0.0
~
(MV
Upper
limits:-0.1)
0.0
%
400114(0071H)
CH1 MV Upper limits (MV Lower 0.1) ~
100.0
100.0
400115(0072H)
Heating&Cooling
CH1 MV Lower limits -100.0 ~ 0.0
-100.0
%
400114(0071H)
CH1 MV Upper limits 0.0 ~ 100.0
100.0
400115(0072H)
The amount of operation during the self-tuning process
The amount of operation during manual control includes: the amount of operation when
the
control is stopped; the amount of operation when the sensor is faulty; and the initial
amount of operation when the controller is manually controlled.
The upper/lower limit of the MV does not apply to the ON/OFF
mode in standard mode (heating or cooling).
MV Upper limits
Control output
Heating control
MV Upper limits
Control output
Heating control
MV Lower limits
MV Lower limits
Cooling gontrol
<Standard control (heating control)>
<
Heating and cooling control>