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CHAPTER 5 PARAMETERS
Level 2 Mode
MV upper limit
MV lower limit
MV change rate limit
• The "MV upper limit" and "MV lower limit" parameters set the upper and lower
limits of the manipulated variable. When the manipulated variable calculated by
the E5EK controller is outside of the upper-and lower-limit range, the upper limit
Function
or lower limit set to these parameters is output, respectively.
However, note that these parameters are disabled during position-proportional
control.
• The "MV change rate limit" parameter sets the maximum permissible change
width per second of the manipulated variable (On the position-proportional con-
trol, valve, opening). If a change in the manipulated variable (On the position-pro-
portional control, valve, opening) causes this parameter setting to be exceeded, the
calculated value is reached while changing the value by the per-second value set in
this parameter.
This function is disabled when the set value is "0.0".
• MV upper limit
The setting ranges during standard control and heating and cooling control are
different. Also, the manipulated variable at the cooling side during heating and
Comment
cooling control is expressed as a negative value.
Standard
Heating and cooling
• MV lower limit
The setting ranges during standard control and heating and cooling control are
different. Also, the manipulated variable at the cooling side during heating and
cooling control is expressed as a negative value.
Standard
Heating and cooling
• MV change rate limit
F Related article
4.2 Operating Condition Restrictions/Manipulated variable restrictions (page 4-5)
See
5--22
Control Method
MV lower limit +0.1 to 105.0
Control Method
Unit
Setting Range
0.0 to 100.0
%
Conditions of Use
The control must be advanced PID con-
trol, and ST must be set to OFF.
Setting Range
0.0 to 105.0
Setting Range
-5.0 to MV upper limit -0.1
-105.0 to 0.0
Default
0.0
Unit
Default
%
105.0
%
105.0
Unit
Default
%
-5.0
%
-105.0
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