Eliwell IC 915 NTC/PTC 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
DOWN key Scrolls through the menu items
Decreases the values
fnc key ESC function (exit)
set key Accesses the setpoint
Accesses the menus
Confirms the commands
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
(See Machine Status Menu Diagram)
To access the “Machine Status” menu
Press and quickly release the “set” key.
The label “SP1” appears.
By using the “UP” and “DOWN” keys you
can scroll through the other folders in the
menu:
-SP1: Setpoint 1 setting folder.
-SP2: Setpoint 2 setting folder.
Setpoint 1 (Setpoint 2) Setting
Access the “Machine Status” menu by
pressing and quickly releasing the “set”
key. The label of the “SP1” folder appears.
(To set Setpoint 2 use the “UP” and
“DOWN” keys until iy is shown “SP2”.
To display the Setpoint 1 (2) value press
the “set” key again.
The value appears on the display.
To change the Setpoint 1 (2) value, use
the “UP” and “DOWN” keys within 15 sec-
onds.
If the parameter is LOC = y the Setpoint
cannot be changed.
PROGRAMMING MENU
(See Programming Menu Diagram)
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.
PLEASE NOTE: It is strongly recommended
to switch off and switch on again the con-
troller anytime parameters have been
changed to prevent malfunctioning on
configuration and/or ongoing timings.
PASSWORD
The password “PA1” allows access to level
1 parameters. In the standard configura-
tion passwords is not present.
To enable it (value 0) and assign the
desired value, access the “Programming”
menu, within the folder with the “diS”
label. If passwords is enabled, you will see
it at the entrance of the “Programming”
menu.
COPY CARD
The Copy Card is an accessory connected
to the TTL serial port which allows pro-
gramming quickly the instrument parame-
ters (upload and download parameter’s
map). The operation is performed as fol-
lows:
Format
This command allows copy card formatting,
an operation necessary in case of first use
or to copy maps with different models.
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.
NOTE:
• UPLOAD: instrument --> Copy Card
• DOWNLOAD: Copy Card --> instru-
ment.
Download “from reset (instrumennt
OFF”
Connect the copy card with the instru-
ment OFF (not under voltage).
When the instrument is switched on the
programming parameters will be down-
loaded into the instrument; after the
lamp-test the diplay will show for about 5
seconds:
IC 915 NTC/PTC
electronic controller with dual output
fnc
set
LED
Position Related Function Status
OUT1 relay 1 (OUT1) ON when the regulator is started up; blinking in case of delay,
protection or blocked enabling
OUT2 relay 2 (OUT2) ON when the regulator is started up; blinking in case of delay,
protection or blocked enabling
Alarm ON when the alarm is enabled; blinking when the alarm is silenced
set
fnc
IC915
out 1
out 2

• label dLY if copy operation successful
• label DLn if not
PLEASE NOTE:
• after the download operation the instru-
ment will immediately work with the new
parameters map setting
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.
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 reg-
ulator probe (referred to probe 1)
is shown as E1 on the instrument display
When the sensor detects an error condi-
tion:
• the code E1 is displayed
• the regulator is activated as indicated by
the "On1 (On2)" and "OF1 (OF2)" parame-
ters if programmed for the duty cycle or:
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
connections 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;
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 59 mm (without wirings).
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:
• NTC: –50…110°C (–58…230°F);
• PTC: –50…140°C (–58…302°F)
without decimal point (selectable through
parameter on 3 digit & 1/2+ mark display.
Serial: TTL for connection to Copy Card.
Analog input: one PTC or NTC input
(programmable by parameter).
Digital outputs: 1 SPDT output on 8(3)A
1/2 hp, 1 SPST output on 8(3)A 1/2 hp
configurables. (for relay capabilities see
label on the instrument)
Measuring range: from –50 to 140 °C.
Accuracy: 0.5% better than end scale + 1
digit.
Resolution: 0,1°C (0,1°F within +199,9°F,
1°F over).
Consumption
• model 230V: 3 VA max.
• model 12V: 1,5 VA max.
Power supply: 12 Va/c±10% or 230Va
±10% 50/60 Hz.
Warning: check the power supply specified
on the instrument label; for relay and
power supply capacities, contact the Sales
Office).
IC 915 NTC/PTC 2/5
On1 (On2)
0
0
>0
>0
OF1 (OF2)
0
>0
0
>0
regulator output
OFF
OFF
ON
dc
DISPLAY
E1
ERROR
regulator probe fault
Error table
,
,
,
,
,

IC 915 NTC/PTC 3/5
DISCLAIMER
This manual and its contents remain the sole property of Invensys Controls Italy s.r.l.,
and shall not be reproduced or distributed 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 whatsoever connected with its use.
Invensys Controls Italy s.r.l. reserves the right to make any changes or improvements
without prior notice.
PLEASE NOTE: The technical data
included in this document, related to
measurement (range, accuracy, resolu-
tion, etc.) refer to the instrument
itself, and not to its equipment such
as, for example, sensors.
This means, for example, that sensor(s)
error(s) shall be added to the instru-
ment’s one.
SP1
SP2
SP1 value
SP2 value
set set
set
change
SP1(2) value
if present
press and release
(single press)
ONLY IC 915
Status Machine Diagram
set PA1 0 set
set PA1 value
diS
CnF
Fpr
level 1 par
level 1 par
level 1 par
set
set
set
level 1
change
par value
scroll
parameters
press for 5 sec
rE1
rE2
set level 1 par
level 1 par
set
Programming Menu Diagram

PARAMETER
HC1
db1
dF1
HS1
LS1
dn1
do1
di1
dE1
On1
OF1
HC2
db2
dF2
HS2
LS2
dn2
do2
di2
dE2
On2
OF2
LOC
PA1
ndt
CA1
dro
H00 (1) (!)
H01
H10
rEL
tAb
UL
dL
Fr
4/5
DESCRIPTION
REGULATOR 1 (folder with “rE1” label)
Heat/Cool Mode. If set to H the generic regulator actuates for hot
operation. If set to C the generic regulator actuates for cold opera-
tion
Intervention 1 band see ON-OFF regulation diagram
diFferential. Relay 1 tripping differential. The regulator stops on
reaching the Setpoint value (as indicated by the adjustment
probe), and restarts at temperature value equal to the Setpoint 1
plus (o minus depending on HC1) the value of the differential.
see ON-OFF regulation diagram
Higher SEt. Maximum possible setpoint 1 value.
Lower SEt. Minimum possible setpoint 1 value.
REGULATOR 1 PROTECTIVE DEVICE (folder with “rE1” label)
Delay time in activating the regulator relay after switch-on of
instrument.
Delay after switch off. The indicated time must elapse between
switch-off of the regulator relay and the successive switch-on.
Delay between switch-ons. The indicated time must elapse
between two successive switch-ons of the regulator.
Delay before switch-off. The indicated time must elapse between
switch-off request and the switch-off of the regulator.
PLEASE NOTE: for par. dn1, do1, di1, dE1 0= not active
On time (regulator 1).
Regulator activation time in the event of faulty probe. If set to “1”
with OF1 at “0” the regulator is always on, while at OF1 >0 it
functions always in duty cycle mode.
OFF time (regulator 1). Regulator in disabled state time in the
event of a faulty probe. If set to “1” with On1 at “0” the regulator
is always off, while at On1 >0 it functions always in duty cycle
mode.
REGULATOR 2 (folder with “rE2” label)
Heat/Cool Mode. If set to H the generic regulator actuates for hot
operation. If set to C the generic regulator actuates for cold opera-
tion
Intervention 2 band see ON-OFF regulation diagram
diFferential. Relay 1 tripping differential. The regulator stops on
reaching the Setpoint value (as indicated by the adjustment
probe), and restarts at temperature value equal to the Setpoint 1
plus (o minus depending on HC1) the value of the differential.
see ON-OFF regulation diagram
Higher SEt. Maximum possible setpoint 2 value.
Lower SEt. Minimum possible setpoint 2 value.
REGULATOR 2 PROTECTIVE DEVICE (folder with “rE2” label)
Delay time in activating the regulator relay after switch-on of
instrument.
Delay after switch off. The indicated time must elapse between
switch-off of the regulator relay and the successive switch-on.
Delay between switch-ons. The indicated time must elapse
between two successive switch-ons of the regulator.
Delay before switch-off. The indicated time must elapse between
switch-off request and the switch-off of the regulator.
PLEASE NOTE: for parameters dn2, do2, di2, dE2 0= not active
On time (regulator 2).
Regulator activation time in the event of faulty probe. If set to “1”
with OF1 at “0” the compressor is always on, while at OF2 >0 it
functions always in duty cycle mode.
OFF time (regulator 2). Regulator in disabled state time in the
event of a faulty probe. If set to “1” with On2 at “0” the regulator
is always off, while at On2 >0 it functions always in duty cycle
mode.
DISPLAY (folder with “diS” label)
(keyboard) LOCk (set and keys). 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,
display read-out. Select °C or °F for displaying the temperature
read by the probe.
CONFIGURATION (folder with “CnF” label)
Probe type selection, PTC or NTC.
Outputs link 0 = independents; 1 = related; 2 = Neutral Zone;
delay time in activating the outputs after switch-on WARNING! If
set = 0 it is not active; if set 0 output will not be activated before
this time
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.
PLEASE NOTE using “Fr” parameter (copy card formatting)
the data within the copy card will be lost permenently. The
operation cannot be cancelled. After using the copy Card
device the controller must be switch off and switch on again
Tab. 1 Parameter Table
DEFAULT*
H/C*
1*
0 (n.z. models)*
1*
140*
-50*
1
0
0
0
0
1
H/C*
1*
0 (n.z.models)*
1*
140*
-50*
1
0
0
0
0
1
n
0
n
0
°C
PtC/ntC*
0/1/2*
0
/
/
/
/
/
RANGE
H/C
0...30.0
0.0...30.0
LS1..HdL
LdL..HS1
0...250
0...250
0...250
0...250
0...250
0...250
H/C
0...30.0
0.0...30.0
LS1..HdL
LdL..HS1
0...250
0...250
0...250
0...250
0...250
0...250
n/y
0...250
n/y
-30.0...30.0
°C/°F
PtC/ntC
0/1/2
0...250
/
/
/
/
/
VALUE* U.M.
flag
°C/°F
°C/°F
°C/°F
°C/°F
°C/°F
sec
min
min
sec
min
min
flag
°C/°F
°C/°F
°C/°F
sec
min
min
sec
min
min
flag
num
flag
°C/°F
flag
flag
flag
min
/
/
/
/
/
IC 915 NTC/PTC

(1) check the probe type NTC/PTC installed (see the label on the instrument).
* DEFAULT column: for parameters HC1/2, HS1/2, LS1/2, DF1/2, H00/01/10 the default depends don the model.
* VALUE column: to be filled manually, with customized settings (if different from the default value).
(!) WARNING!
• If one or more of these parameters highlighted with (!) are modified, teh controller must be switched off and switched on again to ensure correct operation.
• It is strongly recommended, anyway to switch off and switch on again the controller anytime parameters have been changed to prevent malfunctioning on configuration
and/or ongoing timings
IC 915 NTC/PTC 5/5
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
5/2003 eng
cod. 9IS22086
IC 915 NTC-PTC - 12 V A
6 7
1 2 3 4 5
OUT1 OUT2
10
8 9
Supply
Pb1
IC 915 NTC-PTC - 230 V A
6 7
1 2 3 4 5
OUT1 OUT2
10
8 9
Supply
Pb1
WIRING (12V and 230V supply)
1 - 2 N.C. regulator 1 relay output (OUT1)
1 - 3 N.O. regulator 1 relay output (OUT1)
4 - 5 N.O. regulator 2 relay output (OUT2)
6 - 7 Power supply 1,5 VA max. (12V version)
Power supply 3 VA max. (230V version)
8 - 10 Probe 1 input (regulator) Pb1
A TTL input for Copy Card
PLEASE NOTE:
• User Default Settings
• for relay capacities check on the instrument label
In the diagram there are shown only 12V and 230V
supply and relays with 8(3) 1/2 hp 250V capability
Wiring diagram
SP1
SP1-dF1
dF1
Off
On
SP2+dF2
SP2
dF2
Off On
HC1=H
H01=in
HC2=C
ON-OFF Regulation Diagram
SP1
SP1-dF1
dF1
Off
On
SP1+SP2+dF2
SP1+SP2
dF2
Off On
HC1=H
H01=di
HC2=C
SP1-db2+dF2
SP1-db2
dF2
Off
On
SP1+db1
SP1+db1-dF1
dF1
On
OUTPUT 2 OUTPUT 1
SP1
ON-OFF regulation diagram
independent.
The outputs regulate as they as
completely independent
ON-OFF regulation diagram
related.
Setpoint 2 SP2 works depending
on Setpoint SP1
ON-OFF regulation diagram
Neutral Zone.
NOTE: if dF1 and dF2 are both
=0 outputs will open when they
reach SP1 value
HC1
H
H
-
PLEASE NOTE:
• for 1 & 2 examples with HC1=H and HC2=C
• for 3 HC1 and HC2 are ignored
HC2
C
C
-
H01
0
1
2
regulation type
independents setpoints
related setpoints
Neutral Zone
1
2
3