Expert
nano LINE
200NANO1LT**
Thermorégulateur électronique / Electronic thermostat
Manuel d’utilisation et d’entretien / Use and maintenance
manual
Manuale d’uso e manutenzione / Use and maintenance manual
PEGO S.r.l.
Via Piacentina, 6/b - 45030 - ROVIGO
Tel : 0425 762906 - Fax: 0425 762905
www.pego.it - e-mail: [email protected]
200NAN1LT_01-18_FRA # Rev.01-18 # 22/02/2018
Manuale d’uso e manutenzione / Use and maintenance manual
LIST OF FIRST LEVEL VARIABLES
(User level)
Var
MEANING
DEF.
r0
Temperature differential in relation to principal
SET-POINT
< Range: 0.2 ÷ 10,0°C >
Expressed in absolute values and defines hysteresis
(positive if mOd = 0 or 2 or negative if mOd = 1 or 3)
of temperature in relation to SET POINT.
2,0
d0
Defrosting interval
< Range: 0 ÷ 24 hours >
If d0=0 defrosting is excluded.
4
d3
Massima durata sbrinamento.
< Range: 1 ÷ 240 min >
25
A1
Minimum temperature alarm
< Range: - 45 ÷ (A2-1)°C >
Absolute temperature referred to by the ambient
probe below which, following the ALD delay, the
LOW temperature alarm is triggered, showing the
letters EL alternating with the temperature on the
display, as well as the flashing alarm icon.
-45
A2
Maximum temperature alarm
< Range: (A1+1) ÷ 99°C >
Absolute temperature referred to by the ambient
probe above which, following the ALD delay, the
HIGH temperature alarm is triggered, showing the
letters EH alternating with the temperature on the
display, as well as the flashing alarm icon. When the
alarm is reset the alarm icon remains on without
flashing to indicate that the event occurred, until the
UP key is pressed.
99
LIST OF SECOND LEVEL VARIABLES
(Installer level)
Var
MEANING
DEF.
C1
Minimum time between each turning off and on of
the compressor
< Range: 0 ÷ 15 min >
0
CE1
Duration of compressor ON time in the case of faulty
ambient probe
(emergency mode).
< Range: 0 ÷ 240 min / 0=Disabled >
If CE1=0 the emergency mode in the presence of error
EO remains disabled, the compressor remains off and
defrosting is prevented in order to conserve the
remaining cold.
0
CE2
Duration of compressor OFF time in the case of faulty
ambient probe
(emergency mode).
< Range: 5 ÷ 240 >
5
mOd
Thermostat functioning mode
< Range: 0 ÷ 3 >
0 = NTC - Cold function
1 = NTC - Hot function (in this mode, defrosting is
excluded)
2 = PTC - Cold function
3 = PTC - Hot function (in this mode, defrosting is
excluded)
4 = NTC - alarm N.O.
5 = NTC - alarm N.C.
6 = PTC - alarm N.O.
7 = PTC - alarm N.C.
0
LSE
Minimum value attributable to set point
< Range:
-45 ÷ (HSE-1) °C
>
-45
HSE
Maximum value attributable to set point
< Range:
+99 ÷ (LSE+1) °C
>
99
CAL
Ambient probe value correction
< Range:
-10,0 ÷ 10,0 °C
>
0,0
Ald
Delay time for signalling and display of minimum
and maximum temperature alarm
< Range: 0 ÷ 240 >
120
P1
Password: protection type
( active when PA is different from 0)
< Range: 0 ÷ 3 >
0 = Displays only the set point and allows alarm
stop
1 = Displays the set point, allows alarm stop, +
defrost
2 = Blocks access to levels 1 and 2 during
programming (all other functions permitted)
3 = Blocks access to level 2 during programming
(all other functions permitted)
3
PA
Password
(see P1 for protection type)
< Range: 0 ÷ 999 / 0=Disabled >
0
reL Software release
reading
only
THERMOSTAT FUNCTION MODES (mOd)
The variable mOd allows the selection of function mode of the
thermostat, in particular:
COLD MODE (mOd=0 or 2)
The DO1 output is activated when the temperature measured
by the ambient probe reaches or exceeds the SET POINT+r0
value and remains active until the temperature drops below the
SET POINT. In this mode, the DO1 output is linked to the cold
function icon.
HOT MODE (mOd=1 or 3)
The DO1 output is activated when the temperature measured
by the ambient probe reaches or exceeds the SET POINT-r0
value and remains active until the temperature increases and
exceeds the SET POINT. In this mode the DO1 output is linked to
the heat icon and defrosting is DISABLED.
ALARM MODE (mOd = 4, 5, 6 or 7)
The DO1 output is activated when the temperature measured
by the ambient probe exceeds A2 or drops below A1 for longer
than Ald and remains active until the temperature returns
within the limits. In this mode the DO1 output is linked to the
alarm icon.
PASSWORD FUNCTION
The password function is activated by entering a value other
than 0 for the PA parameter. See parameter P1 for various
protection levels. The protection is activated automatically if
the keyboard remains inactive for about 30 seconds. The figure
000 appears on the display. Use the up/down keys to change
the number and the SET key to confirm. The password entry
template 000 disappears if the keyboard is not activated within
30 seconds.
If you forget the password, use the universal number 100.
EMERGENCY MODE IN THE CASE OF ERROR EO
This safety mode guarantees the functioning of the compressor
even in the case of a faulty ambient probe (error EO). If probe
errors E0 and CE1 are different to 0, the compressor functions
in operation pause mode, with compressor ON for the time CE1
and OFF for the time CE2. If CE1>0 in the case of error E0,
defrosting is performed in normal functioning mode. If CE1=0
the emergency mode in the presence of error E0 remains
disabled. The compressor remains off and defrosting is
prevented to conserve the remaining cold. Eliminate as soon as
possible the cause of error E0 and reactivate the control’s
normal function for a correct temperature adjustment.
MANUAL DEFROSTING ACTIVATION
To activate defrosting simply press the DOWN key for more
than 3 seconds; this activates off-cycle defrosting. End of
defrosting is based on the maximum defrosting duration (d3) or
occurs by forced manual termination (end-of-defrosting key).
MANUALLY FORCED END OF CURRENT DEFROSTING
Pressing the DOWN key for 3 seconds during defrosting forces
the end of the current defrosting. In the case of manual end-of-
defrosting, dripping is also excluded.
AMBIENT TEMPERATURE DISPLAY DURING AND AFTER
DEFROSTING
During defrosting and for a minute following the end of
defrosting, the display continues to display the last ambient
temperature value read before start of defrosting.
DIAGNOSTICS
The display shows ‘orH’ for temperature out of range greater
than +99.9°C, or ‘orL’ for temperature out of range less than
-45.0°C.
In the case of faults, the “Expert nano” control unit informs the
operator by means of alarm codes shown on the display. In the
event of an alarm, one of the following messages is displayed:
ALARM CODE TABLE
Var
MEANING
E0
Functional fault of ambient probe.
E2
EEPROM memory error. All outputs are deactivated except for
alarm outputs if present.
EL
Minimum temperature alarm. The letters EL flash alternating
with the temperature (see parameter A1).
EH
Maximum temperature alarm. The letters EH flash alternating
with the temperature (see parameter A2).
GENERAL INFORMATION
PEGO S.r.l. does not accept responsibility for any loss of data or
information, costs of goods or substitute services, damages to
objects, persons or animals, lost sales or profits, interruption of
activities, any direct, indirect, accidental, property, insured, punitive,
special or consequential damage caused in any way, be it
contractual, extra-contractual or due to negligence or other
responsibility resulting from the use of the product or its installation.
The guarantee automatically becomes invalid in the case of poor
functioning due to tampering, impact or inadequate installation. It is
mandatory to observe all instructions in this manual and the
operating conditions of the device. PEGO S.r.l. does not accept
responsibility for any inaccuracies which may be present in this
manual in the case that these are due to printing or transcription
errors and reserves the right to make modifications to its products
which it deems necessary or appropriate, without prejudicing the
products essential characteristics.
ELECTRICAL PRESCRIPTIONS
Avoid using multipolar cables with conductors connected to
inductive and power loads and signal conductors such as probes and
digital inputs. Avoid installing in the same channels power cables and
signal cables (probes, digital inputs or RS485 connections). Reduce to
a minimum the length of the connecting cables, avoiding that the
cabling takes on a spiral form which may have inductive effects on
the electronic system. All conductors used in the cabling must be
appropriately sized in order to support the load which they must
provide. If it is necessary to extend the probes, use conductors with
appropriate cross-sections and not less than 1 mm². The extension or
reduction of the probes may alter the calibration which was
performed in the factory. Therefore, verify and calibrate by means of
an external thermometer.
NANO1LT SERIES MODELS
PEGO CODE
EXPERT NANO DESCRIPTION
200NANO1LT01
Power 230Vac.
Relay (16A), select hot or cold function.
Fixed clamps.
200NANO1LT11
Power 12Vac.
Relay (16A), select hot or cold function.
Fixed clamps.
200NANO1LT02
Power 230Vac.
Relay (16A), select hot or cold function.
Removable clamps.
ELECTRICAL CONNECTIONS MODEL
200NANO1LT01 / 200NANO1LT02
ELECTRICAL CONNECTIONS MODEL
200NANO1LT11
E N G L I S H
