Fuji Electric PXR3 - Cooling-Side Proportional Band Coefficient

24
Cooling-side proportional band coefficient (Option: Available for DUAL output only) (Setting range: 0.0 to 100.0)
[Description]
• This parameter is used for setting the cooling-side pro-
portional band. (See the figure below.)
[Setting example] Changing the cooling-side proportional band coefficient from 1.0 to 2.5
• Before setting the cooling-side proportional band, set the
heating-side proportional band to an optimum value. To
select the two-position control for the cooling side, set
to 0.0.
Output
Heating side
Cooling side
Heating-side
proportional
band
Cooling-side
proportional
band
Proportional band (P)
50
MV
Coefficient: 0.5
Coefficient: 1.0
Coefficient: 2.0
• When
is set to 0.0 and
is set to 0.0 in the dual
output type, the cooling output is as shown in the figure
below. The hysteresis is fixed at 0.5%FS.
Cooling-side
proportional band
=
Proportional band (P)
2
× Coefficient
Ex) When making the proportional band of 10% of the
full scale with the proportional band (P) being 50%:
10% = × Coefficient
50%
2
Consequently, the coefficient is 0.4.
Related parameters: (page 23)
(page 20)
Heating output (Output 1)
ON 0.5%
0.5% ON
OFF
OFF
Cooling output (Output 2)
HYS DB
SV
PV
Press the key once. will be displayed and 2.5 will be registered for . After that,
the controller will operate with the being 2.5.
Press and hold the key for three seconds.
will be displayed.
Press the or keys to flicker and to display .
(Repeat the procedure from 3 to 5 to check the set value.)
Press the key once.
The current setting ( ) will be displayed.
Press the key to display .
SEL
SEL
SEL
1.
4.
If you want to display the operation status, press and hold the key for two seconds.
The SV will be displayed on the display area.
If unoperated state continues, the PV will be displayed.
6.
2.
3.
SEL
5.
Display Operating procedure
PV indication
PV indication
SV indication