Cooling-Side Proportional Band Shift (Dead Band/Overlap Band) - FE PXR4 Operation Manual

[Description]
• This parameter is used for shifting the cooling-side pro-
portional band from the set value. (See the figure below.)
Heating side
MV
[Setting example] Shifting the cooling-side proportional band by 2.0
Display
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Cooling-side proportional band shift (Dead band/Overlap band)

(Option: Available for DUAL output only) (Setting range: -50.0 to +50.0)
Output
Cooling side
Overlap Dead
band band
MV=50%
1.
Press and hold the
will be displayed on the PV display.
2.
Press the key to display
3.
Press the SEL key once.
The current setting (
4.
Press the or
5.
Press the SEL key once.
controller will operate with
6.
If you want to display the operation status, press and hold the
www.
• When
and when it is a negative value, the "Overlap band".
• Since the unit of
want to set
converted using the equation below.
MV
Consequently, set the parameter
• Related parameters:
Operating procedure
key for three seconds.
SEL
.
) flashes on the SV display.
keys to display .
will stop flashing and will be registered for
being 2.0 %.
.com
is a positive value, it is called the "Dead band",
is same one used for MV [%], if you
in the unit of deviation [%],
100
DB [%] = Deviation ×
[%]
P
Ex) When making a dead band with a deviation of
1.0 [%] from the SV while the proportional
band (P) is 5.0%:
100
DB [%] = 1.0 ×
= 20 [%]
5.0
(page 24)
SEL key for two seconds.
information@itm.com
must be
to 20 [%].
. After that, the
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