Eliwell ID 970 User manual

USER INTERFACE
The user has a display and four keys for
controlling status and programming of the
instrument.
KEYS AND MENUS
UP key Scrolls through the menu
items Increases the values
Activates manual def. function
DOWN key Scrolls through the menu items
Decreases the values
Programmable by parameter
fnc key ESC function (exit)
Programmable by parameter
set key Accesses the setpoint
Accesses the menus
Confirms the commands
Displaying the alarms (if present)
At start-up the instrument performs a
Lamp Test; for few seconds the display and
the leds blink, in order to verify their
integrity and correct operation. The instru-
ment has two main menus: the “Machine
Status” and “Programming” menu.
ACCESSING AND USING MENUS
Resources are arranged in a menu, which
can be accessed by pressing and quickly
releasing the “set” key (“Machine Status”
menu) or by holding down the “set” key
for more than 5 seconds (“Programming”
menu).
To access the contents of each folder, indi-
cated by the relevant label, just press the
“set” key once.
You can now scroll through the contents
of each folder, modify it or use its func-
tions.
If you do not use the keyboard for over
15 seconds (time-out) or if you press the
“fnc” key once, the last value shown on
the display is confirmed and you return to
the previous screen mask.
MACHINE STATUS MENU
To access the “Machine Status” menu
Press and quickly release the “set” key.
If alarms are not present, the label “SEt”
appears. By using the “UP” and “DOWN”
keys you can scroll through the other fold-
ers in the menu:
-Pb1: probe 1 value folder;
-SEt: Setpoint setting folder.
Set Setting
Access the “Machine Status” menu by
pressing and quickly releasing the “set”
key. The label of the “SEt” folder appears.
To display the Setpoint value press the
“set” key again.
The value appears on the display.
To change the Setpoint value, use the “UP”
and “DOWN” keys within 15 seconds.
If the parameter is LOC = y the Setpoint
cannot be changed.
Displaying Probes
By pressing the “set” key when the appro-
priate label appears, the value of the
probe associated to it is displayed.
PROGRAMMING MENU
To enter the “Programming” menu, press
the “set” key for more than 5 seconds.
If specified, the access PASSWORD will be
requested, (parameter “PA1”), and the
label of the first folder will follow.
To scroll through the other folders, use
the “UP” and “DOWN” keys.
To enter the folder, press “set”. The label
of the first visible parameter appears. To
scroll through the other parameters, use
the “UP” and “DOWN” keys; to change the
parameter, press and release “set”, then
set the desired value using the “UP” and
“DOWN” keys, and confirm with the “set”
key to move to the next parameter.
PASSWORD
The password allows access to program-
ming parameters. In the standard configu-
ration password is not present.
To enable and assign it the desired value,
access the “Programming” menu, within
the folder with the “diS” label. If pass-
word is enabled, you will see it at the
entrance of the “Programming” menu.
MANUAL ACTIVATION OF THE
DEFROSTING CYCLE
To manually activate the defrosting cycle,
press the “UP” key for 5 seconds.
COPY CARD
The Copy Card is an accessory connected
to the TTL serial port which allows pro-
gramming quickly the instrument parame-
ters. The operation is performed as fol-
lows:
Format
This command allows copy card format-
ting, an operation recommended in case
of first use.
Warning: if the copy card has been pro-
grammed, using the “Fr” the data entered
are erased. This operation cannot be can-
celled.
Upload
This operation loads the programming
parameters from the instrument.
Download
This operation downloads to the instru-
ment the programming parameters.
The operations are performed accessing
the folder identified by the “FPr” label and
selecting, according to the case, “UL”, “dL”
or “Fr” commands; the operation is con-
firmed by pressing the “set” key. If the
operation is successful an “y” is displayed,
on the contrary, if it fails a “n” will be dis-
played.
KEYBOARD LOCKING
The instrument includes a facility for dis-
abling the keyboard, by programming the
“Loc” parameter (see folder with “diS”
label). If the keyboard is locked, you can
still access the programming menu by
pressing the “set” key.
The Setpoint can also be viewed.
ID 970
electronic controllers for refrigerating units
fnc
set
LED
Position Related Function Status
Compressor or relay 1 ON when the compressor is started up; blinking in case of delay,
protection or blocked enabling
Defrost ON when defrosting; blinking in case of manual
enabling
Alarm ON when the alarm is enabled; blinking when the alarm is silenced

DIAGNOSTICS
The alarm condition is always signalled by
the buzzer (if present) and by the led of
the alarm icon
The alarm signal produced by a faulty
thermostat probe (probe 1) is shown as E1
on the instrument display.
INSTALLATION
The instrument is designed for panel
mounting. Make a hole of 29x71 mm,
insert the instrument and fix it using the
brackets provided. Do not mount the
instrument in humid and/or dirty places; it
is suitable for use in ordinary polluted
places. Ventilate the place in proximity to
the instrument colling slits.
ELECTRICAL
WIRING
Attention! Never work on electrical con-
nections when the machine is switched on.
The instrument is equipped with screw ter-
minal boards for connection of electrical
cables with a diameter of 2.5 mm2(one
conductor only per terminal for power
connections).
For the capacity of the terminals, see the
label on the instrument.
The relay contacts are voltage free. Do not
exceed the maximum current allowed; in
case of higher loads, use an appropriate
contactor. Make sure the power supply
voltage complies with the one required by
the instrument.
In 12V versions the power supply must be
provided by a security transformer with
the protection of a delayed 250 mA fuse.
Probes have no connection polarity and
can be extended using a regular bipolar
cable (note that the extension of the
probes affects the EMC electromagnetic
compatibility of the instrument: pay
extreme attention to wiring).
Probe cables, power supply cables and the
TTL serial cables should be distant from
power cables.
CONDITIONS OF USE
PERMITTED USE
For safety reasons the instrument must be
installed and used according to the
instruction provided and in particular,
under normal conditions, parts bearing
dangerous voltage levels must not be
accessible.
The device must be adequately protected
from water and dust as per the application
and must also only be accessible via the
use of tools (with the exception of the
frontlet).
The device is ideally suited for use on
household appliances and/or similar refrig-
eration equipment and has been tested
with regard to the aspects concerning
European reference standards on safety. It
is classified as follows:
• according to its manufacture: as an auto-
matic electronic control device to be
incorporated by independent mounting;
• according to its automatic operating fea-
tures: as a 1 B-type operated control type;
• as a Class A device in relation to the cat-
egory and structure of the software
UNPERMITTED USE
Any other use other than that permitted is
de facto prohibited. It should be noted
that the relay contacts provided are of a
practical type and therefore subject to
fault. Any protection devices required by
product standards or dictated by common
sense due to obvious safety reasons should
be applied externally.
LIABILITY AND RESIDUAL
RISKS
Invensys Controls Italy S.r.L. shall not be
liable for any damages deriving from:
- installation/use other than that pre-
scribed and, in particular, that which does
not comply with safety standards anticipat-
ed by regulations and/or those given here-
in;
- use on boards which do not guarantee
adequate protection against electric shock,
water or dust under the conditions of
assembly applied;
- use on boards which allow access to dan-
gerous parts without the use of tools;
- tampering with and/or alteration of the
products;
DISCLAIMER
This manual and its contents remain the
sole property of Invensys Controls Italy
s.r.l., and shall not be reproduced or dis-
tributed without authorization. Although
great care has been exercised in the
preparation of this document, Invensys
Controls Italy s.r.l., its employees or its
vendors, cannot accept any liability what-
soever connected with its use. Invensys
Controls Italy s.r.l. reserves the right to
make any changes or improvements with-
out prior notice.
TECHNICAL DATA
Frontal panel protection: IP65.
Casing: plastic body in resin type
PC+ABS UL94 V-0, inspection window in
polycarbonate, buttons in thermoplastic
resin.
Dimensions: frontal panel 74x32 mm,
depth 60 mm.
Installation: on panel, with drilling tem-
plate 71x29 mm (+0.2/–0.1 mm).
Use temperature: –5…55 °C.
Storage temperature.: –30…85 °C.
Use environment humidity: 10…90 % RH
(not condensing).
Storage environment humidity: 10…90% RH
(not condensing).
Viewing range: –50…110 (NTC); –50…140
(PTC) °C without decimal point (selectable
through parameter on 3 digit + 1/2mark
display.
Analog inputs: one PTC or NTC input
(selectable through parameter).
Serial: TTL for connection to Copy Card.
Digital outputs: 2 relay contacts : first
SPDT 8(3)A 250Va, and second SPST 8(3)A
250Va.
Measuring range: from –50 to 140 °C.
Accuracy: 0.5% better than end scale + 1
digit.
Resolution: 1 or 0.1 °C.
Power: 3 VA.
Power supply: 12 Va/cor 230Va.
Warning: check the power supply specified
on the instrument label; for relay and
power supply capacities, contact the Sales
Office).
ID 970 2/4

ID 970 3/4
Tab. 1 Parameter Table
PAR.
diF
HSE
LSE
Ont
OFt
dOn
dOF
dbi
OdO
dty
dit
dCt
dOH
dEt
dPO
dt
LOC
PA1
ndt
CA1
ddL
dro
H00 (1)
H42
reL
tAb
UL
dL
Fr
(1) For 230 Vamodels the default value is 1 (NTC input, see the label on the instrument).
* VALUE column: to be filled manually, with customized settings (if different from the default value).
** LEVEL column: indicates the level of visibility of parameters accessible by PASSWORD (see the related paragraph)
DESCRIPTION
COMPRESSOR REGULATOR (folder with “CP” label)
diFferential. Relay compressor tripping differential. The compressor stops on reaching the
Setpoint value (as indicated by the adjustment probe), and restarts at temperature value
equal to the Setpoint plus the value of the differential.
Note: the value 0 cannot be assumed.
Higher SEt. Maximum possible setpoint value.
Lower SEt. Minimum possible setpoint value.
COMPRESSOR PROTECTIVE DEVICE (folder with “CP” label)
On time (compressor). Compressor activation time in the event of faulti probe. If set to
“1” with Oft at “0” the compressor is always on, while at Oft >0 it functions always
in duty cycle mode.
OFF time (compressor). Compressor in disabled state time in the event of a faulti probe.
If set to “1” with Ont at “0” the compressor is always off, while at Ont >0
it functions always in duty cycle mode.
delay (at) On compressor. Delay time in activating the compressor relay after switch-on
of instrument
delay (after power) OFF. Delay after switch off; the indicated time must elapse between
switch-off of the compressor relay and the successive switch-on.
delay between power-on. Delay between switch-ons; the indicated time must elapse
between two successive switch-ons of the compressor.
delay Output (from power) On. Delay time in activating the outputs after switch-on of
the instrument or after a power failure.
DEFROSTING REGULATOR (folder with “dEF” label)
defrost type. Type of defrosting.
0 = electric defrost;
1 = reverse cycle defrost (hot gas);
2 = Free defrost (compressor hot).
defrost interval time. Interval between the start of two successive defrosting operations.
defrost Counting type. Selection of count mode for the defrosting interval.
0 = compressor operating hours (DIGIFROST® method);
1 = Real Time – appliance operating time;
2 = compressor stop.
defrost Offset Hour. Start-of-defrosting delay time from start up
of instrument.
defrost Endurance time. Defrosting time-out; determines duration of
defrosting.
defrost (at) Power On. Determines if at the start-up the instrument must enter defrosting
(if the temperature measured by the evaporator allows this operation).
y = si; n = no.
FANS REGULATOR (folder with “FAn”)
drainage time. Dripping time.
DISPLAY (folder with “diS” label)
(keyboard) LOCk. Keyboard locking. However, you can enter parameter programming
modify them along with the status of this parameter in order to allow keyboard locking.
y = yes; n = no
PAssword 1. When enabled (value other than 0) it constitutes the access key for
level 1 parameters.
number display type. View with decimal point. y = yes; n = no
CAlibration 1.Calibration 1. Positive or negative temperature value added to the value
read by probe 1, based on “CA” parameter settings.
defrost display Lock. Viewing mode during defrosting.
0 = shows the temperature read by the thermostat probe;
1 = locks the reading on the temperature value read by thermostat probe when
defrosting starts, and until the next time the Setpoint value is reached;
2 = displays the label “deF” during defrosting, and until the next time the
Setpoint value is reached.
display read-out. Select °C or °F for displaying the temperature read by the probe.
0 = °C, 1 = °F.
CONFIGURATION (folder with “CnF” label)
Probe type selection, PTC or NTC. 0 = PTC; 1 = NTC.
Evaporator probe present.
reLease firmware. Device version: read only parameter.
tAble of parameters. Reserved: read only parameter.
COPY CARD (folder with “Fpr”label)
Up load. Programming parameter transfer from instrument to Copy Card.
Down load. Programming parameter transfer from Copy Card to instrument
Format. Erasing all data in the copy card.
NOTA BENE: using “Fr” parameter (copy card formatting) the data within the copy
card will be lost permenently. The operation cannot be cancelled.
DEFAULT
2.0
99.0
-50.0
0
1
0
0
0
0
0
6
1
0
30
n
0
n
0
y
0
1
0
0
y
/
/
/
/
/
RANGE
0.1...30.0
LSE..302
-55.0...HSE
0...250
0...250
0...250
0...250
0...250
0...250
0/1/2
0...250
0/1/2
0...59
1...250
n/y
0...250
n/y
0...250
n/y
-12.0...12.0
0/1/2
0/1
0/1
n/y
/
/
/
/
/
VALUE* LEVEL**
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
U.M.
°C/°F
°C/°F
°C/°F
min
min
sec
min
min
min
flag
hours
flag
min
min
flag
min
flag
number
flag
°C/°F
flag
flag
flag
flag
/
/
/
/
/

ID 970 4/4
TERMINALS
1 - 2 N.A. defrost relay
1 - 3 N.C. defrost relay
4 - 5 compressor relay output
6 - 7 Power supply
8 - 10 Probe 1 input (thermostat)
A TTL input for Copy Card
NOTE: Default user settings
Wiring diagram
1 2 3 4 5 6 7 8 9 10
ID 970 - 12 V A
1 2 3 4 5 6 7 8 9 10
ID 970 - 230 V A
Invensys Controls Italy s.r.l
via dell'Industria, 15 Zona Industriale Paludi
32010 Pieve d'Alpago (BL) ITALY
Telephone [phone]
Facsimile [phone]
Internet http:/www.climate-eu.invensys.com
3/2002 eng
cod. 9IS22047