PAR.
DESCRIPTION
RANGE
DEFAULT
VALUE
LEVEL
U.M.
SEt
Set point with range falling between the minimum
LSE set point and the maximum HSE set point. The
set point value is in the
machine status menu
menu
LSE...HSE
0.0
°C/°F
diF
When the compressor stops when it reaches the
set point value, it restarts at a value corresponding
to the set point plus the value of the differential It
must not be 0
0.1...30.0
2.0
1-2
°C/°F
HSE
Maximum set point value
LSE...302
50.0
1-2
°C/°F
LSE
Minimum set point value
-58.0...HSE
-50.0
1-2
°C/°F
OSP
Offset point. Value to be added to set point if
reduced set point is activated Economy function).
-30.0...30.0
0
2
°C/°F
Cit
Minimum compressor ON time. Minimum time for
activating a compressor before deacti vation Not
active if=0
0...250
0
2
min
CAt
Maximum compressor ON time. Maximum time for
activating a compressor before deacti vation Not
active if=0
0...250
0
2
min
Ont (1)
Compressor activation time if probe is faulty. If set
to 1 with OFt=0 the compressor always remains on
whereas if OFt>0 it operates in duty cycle mode
(see
Duty Cycle
diagram)
0...250
0
1-2
min
OFt (1)
Compressor shut-down time if probe is faulty. If set
to 1 with Ont=0 the compressor always remains off
whereas if OFt>0 it operates in duty cycle mode
(see
Duty Cycle
diagram)
0...250
1
1-2
min
dOn
Delay in activating compressor relay after start-up
0...250
0
1-2
sec
dOF
Delay after shut-down; between compressor relay
shut-down and subsequentstart-up the specified
time must elapse.
0...250
0
1-2
min
dbi
Delay between switch-ons; the specified time must
elapse between two subsequent switch-ons
0...250
0
1-2
min
OdO
Delay in activating outputs after start-up of instru-
ment or after a power failure.
Not active if=0
0...250
0
1-2
min
dty
Type of defrost.
0 = electrical defrosting;
1 = cycle reversing defrosting (hot gas);
2 = Free mode defrosting (compressor disabled).
0/1/2
0
1-2
num
dit
Period of time elapsing between the start of two
defrosts 0=function disabled
0...250
6h
1-2
hours/min/sec
dt1
Unit of measurement for defrost
times (par. dit)
0=”dit” expressed in hours
1=”dit” expressed in minutes
2=”dit” expressed in seconds
0/1/2
0
2
num
NOTE: At level 1 the folders will only display all the level 1 parameters. At level 2 the folders will only display all the level
2 parameters. The symbol 1-2 indicates the parameters that are displayed at both menu levels
Defrosting controller
-dEF label
Compressor controller
-CP label
dt2
Unit of measurement for duration of defrosting
(dEt parameter)
0= “dEt” parameter expressed in hours
1= “dEt” parameter expressed in minutes
2= “dEt” parameter expressed in seconds
0/1/2
1
2
num
dCt
Selection of defrosting time count mode.
0=compressor operating hours DIGIFROST®
method). Defrosting active only if compressor is
on.
1 = device operating hours; defrost counting is
always active when the machine is on
2=compressor stop Each time the compressor
stops a defrosting cycle
defrost cycle is performed according to par. dtY
3=disabled
0/1/2/3
1
1-2
flag
dOH
Delay between start of first defrosting operation
and start-up of instrument.
0...59
0
1-2
min
dEt
Defrosting time-out; determines maximum dura-
tion of defrosting.
1...250
30min
1-2
min/sec
EWDR 981
4/8
