Omron E5GN - Page 82

E5GN
5–15
Cooling coefficient
The control must be either heating and cool-
ing control and 2-PID control.
If the heating and cooling characteristics of the control target greatly differ, preventing satisfacĆ
tory control characteristics from being obtained by the same PID parameters, adjust the proporĆ
tional band (P) at the control output 2 side by adding the cooling coefficient to balance control
between the control output 1 and control output 2 sides.
In heating and cooling control, control output 2 side P is calculated by the following
formula to set the cooling coefficient:
Control output 2 side P = Cooling coefficient  P (proportional bounds)
Setting Range Unit Default
0.01 to 99.99 None 1.00
FĂRelated parameter
Proportional band" (adjustment level) (p. 5Ć14)
Dead band
The control system must be heating and cool-
ing control.
This parameter sets the output dead band width in a heating and cooling control system. A negaĆ
tive setting sets an overlap band.
Ă• This parameter sets an area in which the control output is 0" centering around the
set point in a heating and cooling control system.
Ă• The decimal point setting follows the currently set sensor. During analog input, the
decimal point setting follows the decimal point position" setting.
Setting Range Unit Default
-199.9 to 999.9 EU 0.0
Adjustment Level
Function
See
Function