accessed. In the standard configuration
passwords are not present.
To enable them (value≠0) and assign
them the desired value, access the
Programming menu in the “diS” folder .
If passwords are enabled, they will be
requested:
- PA1 when entering the Programming
menu (see the “Programming Menu“ sec-
tion);
- PA2 in the “Cnf” folder containing level
1 parameters.
2) LOCAL KEYBOARD
Password “PA3” gives access to the local
keyboard parameters. In the standard
configuration the password is not pre-
sent. To enable it (value ≠0) and assign
it the desired value, access the Local
Keyboard Programming menu in the
“PLO” folder .
If passwords are enabled, they will be
requested:
- PA3 when entering the PLO menu
USING COPY CARD
The Copy Card is an accessory connected
to the TTL serial port that is used to pro-
gram the unit parameters quickly (upload
and download parameter map to one or
more units of the same type). The opera-
tion is performed as follows:
Fr-Format (level 2 par.)
This command can be used to format the
copy card when used for the first time
or when used with models that are not
compatible.
Attention: when the copy card has been
programmed and the “Fr” parameter is
used all the data entered is cancelled.
This operation cannot be undone.
UL-Upload
This operation unloads the programming
parameters from the instrument.
dL-Download
This operation downloads the program-
ming parameters to the instrument.
NOTE:
• UPLOAD: instrument —>Copy Card
• DOWNLOAD: Copy Card —> instru-
ment
The operations are performed by access-
ing the folder identified by the “FPr”
label and selecting the “UL”, “dL” or “Fr”
commands; the operation is confirmed
by pressing the “set” button. If the oper-
ation is successful, a “y” is displayed
whereas if it fails an “n” will be dis-
played.
Download “from reset”
Connect the copy card with the instru
-
ment OFF. When the instrument is
switched on the programming parame-
ters will be downloaded into the copy
card; when the lamp test has been com-
pleted, the display will show for about 5
seconds:
• label dLY if copy operation is successful
• label DLn if operation fails
NOTE:
• after downloading the instrument will
work with the new parameters map set-
tings.
DISTANCE-MANAGED SYSTEMS
(LX MODELS ONL
Y)
Televis systems can be connected using
the RS 485 serial input (see connection
diagram for terminals on base 1-2-3)
In this case, use the Televis plug-in
module available as an optional extra
(TTL - RS 485 converter)
To configure the instrument to do this,
you need to access the folder(only in LX
models) identified by the “Add” label
and use the “dEA” and “FAA” parameters.
FUNCTIONS
LINK
The Link function is used to connect sev-
eral IWP base units and IWK keyboards up
to a maximum of 10 instruments (1
Master base device and 4 slaves, 1 IWK
keyboard for the Master base and 4 IWK
Slave keyboards).
The serial connection between the devices
is implemented by way of an “powered”
serial connection (SHORT DISTANCE).
NOTE: for a SHORT DISTANCE connec-
tion two adjoining modules must be
less than 10 m apart whereas the two
furthest modules must be less than 50
m apart.
MASTER-SLAVE-ECHO DEFINITIONS
AND NETWORK COMMANDS
1)IWP base
•Master Base
Strumento che gestisce la rete, inviando i
comandi agli Slave. La selezione del
Master avviene tramite il parametro L00 (il
valore 0 definisce il Master).
The Master Base is the only default
device that is able to:
Activate for all the Slaves:
a) switching lights on/off;
b) alarm silencing;
c) activating auxiliary set point (reduced
set);
d) placing devices in STAND-BY (ON-OFF);
e) activating the auxiliary relay. The
Master also:
1) synchronizes the displays on all the
Slaves and Echos with its own display;
2) synchronizes defrosting (simultaneous
or sequential);
3) synchronizes the compressors (with a
delay in activating them, see par. don);
4) shares probe 1 (temperature probe) so
that there is only one thermostat control:
if this is the case, the Master probe is used
by all the Slaves for regulation.
•Slave Base
Instrument(s) supplied with own controls
which also perform(s) commands issued
by the Master (with parameters L00..L09).
The Slave Base according to parameter
L08 is also enabled for:
a) switching lights on/off;
b) placing devices in STAND-BY (ON-
OFF).
According to parameters L00..L09 it may
also become dependent on/independent
of the Master with regard to points a)-b)
with regard to defrosting management
and thermostat control probe sharing. By
using parameter L09, the slave decides
whether to use the probe shared by the
Master or its own to adjust temperature.
In the first case, the probe can be omitted
on the Slave.
2) IWK keyboard
•Master keyboard
Keyboard connected to the network that
configures and displays the status of the
Master base unit. Each keyboard can be
configured to control the Master or Slave
base units.
•Slavekeyboard
Keyboard connected to the network that
configures and displays the status of the
Slave base unit. Each keyboard can be
configured to control the Master or Slave
base units. (using parameters L00..L09).
• Echo keyboard
Keyboard connected to the network that
only displays the values of the instrument
which it is associated to (it does not there-
fore have with its own I/O resources, but
only acts as a repeater).
NOTE: several Echo keyboards can be
connected to the same Master or Slave
base unit.
LINK Network Defrosting
The main characteristics of the Link net-
work is the control of defrosting; the
Master sends the defrost command which
can be performed synchronously(1) or
sequentially (2) (defrost after defrost),
without affecting the normal protections
or delays of each instrument (see parame-
ter L03).
(1) Synchronized defrost
The synchronization of defrosting is
effected with regard to the actual
defrosting phase; dripping and all the
functions that follow the defrosting stage
are therefore not considered. The Master
only supplies the commands that enable
the start of defrosting or thermostat con-
trol without interfering with the normal
protections or delays on each device.
When the slave units are awaiting ther-
mostat control enabling from the Master
(when synchronized defrosting has termi-
nated) the defrost LED blinks.
WARNING: if the Slaves connected to the
network are programmed to accept the
commands from the Master concerning
defrosting and network functions, no
defrosting or functions associated with
the events requested by the Slaves will
be enabled.
Only in the event of a “no link” (error
E7), the Slaves will activate defrosting
and functions associated with the events
requested by the Slaves.
IWP 740 (LX) 3/20
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