NOTE: Do not set parameter tAo to
zero when the door is closed since if
the door is continually opened and
closed, any alarms would never be sig-
nalled.
LINK ALARM
In the event of a master/slave/echo com-
munication failure, the No Link alarm is
signalled. This alarm condition can be
viewed on the master and slaves, if pre-
sent, in the “AL” folder with the “E7” label.
Error status is also signalled by any con-
nected echo devices with signal “- - -”
appearing on the display.
NOTE:
•The E7 error is signalled after approx. 20
seconds in “no link” condition to avoid any
link disturbance causing communication
errors.
•The E7 error is also signalled for address-
ing conflicts when:
a) the number of Slaves set on the MAS-
TER is different from the actual number of
Slaves on the network
b) 2 or more Slaves have the same
address.
ELECTRICAL
CONNECTIONS
Warning! Always switch off machine
before working on electrical connections.
The instrument has screw terminals for
connecting electrical cables with a maxi-
mum diameter of 2.5 mm
2
(only one con-
ductor per terminal for power connec-
tions): for terminal capacity, see the label
on the instrument.
The relay contacts are voltage free. Do not
exceed the maximum current allowed. For
higher loads, use a suitable contactor.
Make sure that the power voltage com-
plies with the device voltage.
Probes have no connection polarity and
can be extended using an ordinary bipolar
cable (note that if probes are extended
this affects the electromagnetic compati-
bility (EMC) of the instrument: special care
must be used when wiring).
Probe cables, power supply cables and the
TTL serial cable should be kept separate
from power cables.
MECHANICAL ASSEMBLY
The unit has been designed for panel-
mounting. Drill a 29x71 mm hole, insert
the keyboard and fix it in place with the
special brackets provided. The remote dis-
play has also been designed for panel-
mounting on a cut-out measuring 45.9 x
26.4 mm. It is pressure-mounted using
special brackets.
Do not install the instruments in excessive-
ly humid and/or dirty locations. They are
suitable for use in locations with normal
pollution levels.
Always make sure that the area next to the
instrument cooling slits is adequately ven-
tilated.
TECHNICAL DATA
ID 985/E LX
Front protection: IP65.
Casing: PC+ABS UL94 V-0 resin plastic
body, polycarbonate front, thermoplastic
resin buttons.
Dimensions: front 74x32 mm, 60 mm
depth.
Mounting: on panel, with drilling template
71x29 mm (+0.2/-0.1 mm).
Operating temperature: -5…55 °C.
Storage temperature: -30…85 °C.
Usage ambient humidity: 10…90 % RH
(non-condensing).
Storage ambient humidity: 10…90% RH
(non-condensing).
Display range: -50…110 (NTC); -55…140
(PTC) °C without decimal point (parameter
selectable), on display 3 sign.
Analogue inputs: three PTC or NTC inputs
(parameter-selectable).
Digital inputs: 2 voltage-free parameter-
configurable digital inputs.
Serial: TTL for Televis or Copy Card con-
nection.
Digital outputs:
4 outputs on relays: first output (A) SPDT
8(3)A 250V
a
, second and third output (B-
C) SPST 8(3)A 250V
a
, fourth output (D)
SPST 5(2)A 250V
a
.
Measurement range: from -55 a 140 °C.
Accuracy: better than 0.5% of bottom scale
+1 digit.
Resolution: 1 or 0.1 °C.
Consumption: 3 VA.
Power supply: 12 V
a
/
c
±10% 50/60 Hz
Caution: check the power supply specified
on the instrument label; for information
on relay capacity and power supplies con-
tact the Sales Office.
ECHO
Front protection: IP65.
Casing: PC+ABS UL94 V-0 resin plastic
body, polycarbonate front
Dimensions: front 48x28.6 mm, 15 mm
deep.
Mounting: on panel, with drilling template
45.9x28.6 mm
Operating temperature: -5…55 °C.
Storage temperature: -30…85 °C.
Usage ambient humidity: 10…90 % RH
(non-condensing).
Storage ambient humidity: 10…90% RH
(non-condensing).
Display range: -50…110 (NTC); -55…140
(PTC) °C without decimal point (parameter
selectable), on display 3 sign.
Serial: 3-way connection (GND, DATI, 12V)
on quick connection terminal block.
Resolution: 1 or 0.1 °C.
Power supply: from instrument it is con-
nected to
ID 985/E LX
5/13
DISPLAY
AH1
AL1
AH3
AL3
Ad2
EA
Opd
E7
Press any button to silence the alarm. The LED will
start to blink. If simultaneous, they will be showed
on the display alternately every 2 seconds
*No-link alarms and addressing conflicts alter-
nate with the temperature or probe error val-
ues normally displayed on the Master or Slave.
ALARM
High temperature alarm (referring to
room probe or probe 1)
Low temperature alarm (referring to
room probe or probe 1)
High temperature alarm (referring to
probe 3)
Low temperature alarm (referring to
probe 3)
Defrosting timed out
External alarm
Door Open Alarm
Master-Slave Communication failure
CONDITIONS OF USE
PERMITTED USE
For safety reasons the instrument must be installed and
used in accordance with the instructions supplied.
Users must not be able to access parts with dangerous
voltage levels under normal operating conditions.
The device must be suitably protected from water and
dust according to the specific application and only be
accessible using special tools (except for the front key-
pad)
The device can be fitted to equipment for household
use and/or similar use in the refrigeration sector and
has been tested with regard to safety in accordance
with the European harmonized reference standards.
It is classified as follows:
• as an automatic electronic control device to be inde-
pendently mounted as regards its construction;
• as a 1 B type operated control device as regards its
automatic operating features;
• as a Class A device as regards the category and struc-
ture of the software.
UNPERMITTED USE
The use of the unit for applications other than those
described is forbidden.
It should be noted that the relay contacts supplied
with the device are functional and therefore exposed
to potential faults. Any protection devices required to
comply with product requirements or dictated by com-
mon sense due to obvious safety reasons should be
installed externally.
