MODBUS Termination Blocks Default Parameter Map • 45
Atu n
Minimum STABLE
superheat s
earch
No; Yes
This parameter enables the search of the
mini
mum stable superheat. The lowest
admitted value is LSH+2°C.
AMS n
Self adaptive SH
regulat
ion enabling
No; Yes
This parameter enables the self adaptive
regulat
ion
of the superheat. CrE = no
must to be set, when this function is
enabled.
SSH 9 Superheat setpoint
[1°F to 45°F]
[0.1°C to 25.5
°C]
This is the value used to regulate the
superheat.
Pb 36 Proportional band
[1°F to 108°F]
[0.1°C to 60.0
°C]
The valve changes its opening on the
ban
d [S
SH, SSH + Pb]. At SSH value
of superheat the valve will be at 0%
(without integral contribution) and at
[SSH + Pb] value of superheat the
valve will be at MnF. For values bigger
than [SSH + Pb] the valve is
completely opened.
rS -3
Proportional band
reset
[-
12.0°C to 12.0°C]
It allows to move the regulation band,
above or below the SH setpoint.
inC 220
Integration time for
superheat
regu
lation
0 to 255
s -
PEO 0
Valve opening in
case of error on
pro
bes P5 or P6
0 to 10
0%
If a temporary probe error occurs, valve
op
ening percentage is PEo until PEd
time is elapsed.
OPE 85
Start opening
percentage for th
e
time SFD. It’s not
limited by the MnF
parameter.
0 to 100%
Opening valve percentage when the
start fun
ctio
n is active. This phase
duration is SFd time.
SFd 0.0
Duration of soft
start phas
e with
opening at OPE
0.0 to 42min00sec (252)
Set start function duration and po
st-
defrost duration. During this phase the
alarms are neglected.
Format: mi
n.10sec
Resolution: 10sec
OPd 85
Valve opening
percent
age during
hot gas defrost. It’s
not limited by the
MnF parameter.
0 to 100%
Opening valve percentage during hot
gas
defrost. D
uring hot gas defrost there
is no SH control.
MnF 100
Maximum
percentage of
openi
ng admitt
ed
(during normal
functioning)
0 to 100%
During the regulati
on it sets the
m
aximum valve opening percentage.
This value is not used during the SFd
phase (soft start) and during hot gas
defrost, where the fixed percentage of
the valve opening is set by oPd.
Label Value Description Range Notes
Table 24-1 - Default Parameter Map
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