ID 985 LX /C /CK
electronic controllers for  ventilated refrigerating units
USER INTERFACE
is confirmed and you return to the previ- PLEASE NOTE: Always confirm with the
ous screen mask.  set key to store the hours/minutes/days
The user has a display and four keys for
setting
controlling status and programming of the
MACHINE STATUS MENU Alarm on
instrument.
To access the  Machine Status menu, If an alarm condition exists, when access-
KEYS AND MENUS press and quickly release the  set key. If ing the  Machine Status menu the  AL
alarms are not present, the label  SEt folder label appears (see the  Diagnostics
UP Key Scrolls menu entries
appears. By using the  UP and  DOWN section).
Increases values
keys you can scroll through the other fold- Displaying probes
Activates manual def. function
ers in the menu: By pressing the  set key when the appro-
DOWN Key Scrolls menu entries
-AL: alarm folder (if alarms present); priate label appears, the value of the
Decreases values
-SEt: Setpoint setting folder. probe associated to it is displayed.
Can be set by parameter
-rtc (models /C /CK):
fnc key ESC function (exit) real time clock folder. PROGRAMMING MENU
fnc
Can be set by parameter
-Pb1: probe 1 value folder; To access the  Programming menu, press
-Pb2: probe 2 value folder; the  set key for more than 5 seconds. If
set key Accesses the setpoint
set
Accesses the menus -Pb3: probe 3 value folder (if present); specified, the level 1 access PASSWORD
Confirms the commands
will be requested (see parameter  PA1 )
Displays the alarms (if active)
Set setting and (if the password is correct) the label
Stores hours/minutes
Access the  Machine Status menu by of the first folder will follow. If the pass-
pressing and quickly releasing the  set word is wrong, the display will show the
At start-up the instrument performs a key. The label of the  Set folder appears. PA1 label again.
Lamp Test; for few seconds the display and To display the Setpoint value press the To scroll other folders, use the  UP and
the leds blink, in order to verify their  set key again. The value appears on the  DOWN keys; the folders contain the
integrity and correct operation. The instru- display. To change the Setpoint value, use level 1 and 2 parameters. The level 2 para-
ment has two main menus: the  Machine the  UP and  DOWN keys within 15 sec- meters may be protected by a second
Status and  Programming menu. onds. If the parameter is LOC = y the password (see  PA2 parameter). If speci-
Setpoint cannot be changed. fied, level 2 parameters are hidden to
ACCESSING AND USING MENUS Real Time Clock (models /C /CK) user; at the entrance of the  Cnf folder
Resources are arranged in a menu, which By pressing the  set key when the related the level 2 access PASSWORD will be
can be accessed by pressing and quickly  rtc label appears, the label d00 (days) is requested and (if the correct password is
releasing the  set key ( Machine Status displayed. Use the  UP and  DOWN keys entered) the label of the first folder in the
menu), or by holding down the  set key to set days. If you do not use the keys for programming menu will follow.
for more than 5 seconds ( Programming over 2 seconds, or if you press  ENTER To enter the folder, press  set . The label
menu). To access the contents of each you switch to hours (h00) and minutes of the first visible parameter appears. To
folder, indicated by the relevant label, just ( 00) folders: use the  UP and  DOWN scroll through the other parameters, use
press the  set key once. You can now keys to set hours and minutes respectively. the  UP and  DOWN keys; to change the
scroll through the contents of each folder, If you do not use the keyboard for over parameter, press and release  set , then
modify it or use its functions. If you do 15 seconds (time-out) or if you press the set the desired value using the  UP and
not use the keyboard for over 15 seconds  fnc key once, the last value shown on  DOWN keys, and confirm with the  set
(time-out) or if you press the  fnc key the display is confirmed and you return to key. Move to the next parameter.
once, the last value shown on the display the previous screen mask. PLEASE NOTE: It is suggested to switch-off
and switch-on again the instrument every-
LED time it is changed the configuration of the
parameters: this prevents malfunctioning
Position Related Function Status
on regulation and delay time occuring.
ECO Set/Reduced set ON for Set-Point changing; blinking when the reduced set is on
PASSWORD
The passwords  PA1 and  PA2 allow
Compressor or relay 1 ON for compressor on; blinking
for delay, locked protection or activation
access respectively to level 1 and level 2
parameters. In the standard configuration
Defrosting ON when defrosting; blinking in case of manual
passwords are not present. To enable
or digital input activation
them and assign them the desired value,
access the  Programming menu, within
Alarm ON when the alarm is enabled; blinking when the alarm is silenced
the folder with the  diS label. If pass-
words are enabled, they will be requested:
Fans ON when fan is on
- PA1 at the entrance of the
 Programming menu (see the
aux aux ON when the auxiliary output is on
 Programming Menu section);
- PA2 within the folder with the  Cnf
decimal point ON when the instrument is in stand-by mode
label containing level 1 parameters.
ENABLING DEFROST CYCLE MANUALLY The instrument includes a facility for dis- played in the  Programming menu. Use the
To manually activate the defrosting cycle, abling the keyboard, by programming the  UP and  DOWN keys to set other days
press the  UP key (if configured) for 5  Loc parameter (see folder with  diS (d1& d6) and Everyday). By pressing  ENTER
seconds. If the conditions for defrosting label). In case of keyboard locking you can the first parameter E00 is displayed; use the
are not present, (for example, the evapo- access to the  Programming Menu by  UP and  DOWN keys to scroll through
rator probe temperature is higher than the pressing the  set key. The Setpoint can also other parameters E01& 03. If you do not use
defrost end temperature), or if parameter be viewed. the keyboard for over 15 seconds (time-
OdO`"0, the display will blink three (3) out), or if you press the  fnc key once, the
times, to indicate that the operation will last value shown on the display is confirmed
ADVANCED FUNCTIONS
not be performed. and you return to the previous screen mask.
LINK (only /CK models) The different functions are set through the
COPY CARD The Link function allows to connect up to 8 appropriate parameters (see the parameter
The Copy Card is an accessory connected instruments (1 Master device and 7 slave and table of the folder with the  nad label)
to the TTL serial port which allows pro- echo devices) to a network. The distance
gramming quickly the instrument parame- between devices must be 7 mt. at least.
DIAGNOSTICS
ters (upload and download parameter s NOTE: the serial connection between devices
map). The operation is performed as fol- is power supplied. The alarm condition is always signaled by
lows: Master the buzzer (if present) and by the led of the
Format An instrument that manages the network by alarm icon The alarm signals from the faulty
This command allows copy card formatting, sending commands to Slaves. The Master is thermostat probe (probe 1), the faulty evap-
an operation necessary in case of first use selected through the L00 parameter (the 0 orator probe (probe 2), and the faulty dis-
or to copy maps with different models. value defines the Master) play probe (probe 3) is viewed on the
Warning: if the copy card has been pro- Slave instrument display by E1, E2, and E3 respec-
grammed, using the  Fr the data entered Instrument(s) supplied with its (their) own tively.
are erased. This operation cannot be can- controls which also performs commands The error condition of the probe 1 (ther-
celled. issued by the Master.
Upload Echo Probe faults table
This operation loads the programming Instrument(s) provided with a function to
parameters from the instrument. view just the values of the instrument which FAULT
DISPLAY
Download is associated to (thus it is not provided with Faulty probe 1 (thermostat) Faulty
E1
E2 probe 2 (evaporator) Faulty probe 3
This operation downloads to the instru- its own I/O resources, but only acts as a
E3 (display)
ment the programming parameters. repeater).
The operations are performed accessing NOTE: several Echo devices can be connect-
If simultaneous, they will be showed on the display
alternatively, every 2 seconds
the folder identified by the  FPr label and ed to the same instrument (Master or Slave;
selecting, according to the case,  UL ,  dL in case it is connected to a Slave module set
or  Fr commands; the operation is con- L04=n). mostat) causes the following:
firmed by pressing the  set key. If the Defrostings " viewing E1 code on the display
operation is successful an  y is displayed, The Link network allows to manage defrost- " activating compressor as indicated by
on the contrary, if it fails a  n will be dis- ings; the Master sends the command for  Ont and  Oft parameters, if these are
played. defrosting, which can be performed syn- programmed for duty cycle.
Download  from reset (instrumennt chronously (at the same time) or sequential- The error condition of the probe 2 (evap-
OFF ly (defrost after defrost ), without affecting
Ont Oft Compressor output
Connect the coy card with the instrument the standard protections or delays of the
0 0 OFF
OFF (not under voltage). instruments (see parameter L03). The Master
0 >0 OFF
When the instrument is switched on the can also activate the following functions:
>0 0 ON
programming parameters will be down- lights coming on and going off, alarm silenc-
>0 >0 D.C. (Duty Cycle)
loaded into the instrument; after the ing, auxiliary Setpoint, aux relay, stand-by
lamp-test the diplay will show for about 5 (on/off), and Night & Day control (see para-
seconds: meter L05). The Master can then synchronize orator) causes the following:
" label dLY if copy operation successful Slave and Echo displays according to the " viewing E2 code on the display
" label DLn if not Master or to a Slave display (for Echoes) (see " end of defrost because of time-out.
PLEASE NOTE: parameter L04). NOTE: synchronous defrost The error condition of the probe 3 (dis-
" after the download operation the instru- is considered as regards the actual defrost, play) causes the following:
ment will immediately work with the new dripping and subsequent functions. The " viewing E3 code on the display.
parameters map setting. defrost LED of the Slaves blinks at the end of The other alarm signals do not show
defrosting , when Slaves wait for the thermo- directly on the display, but can be viewed
TELEVIS DISTANCE-MANAGED SYSTEMS stat to be enabled by the Master. The func- from the  Machine Status menu within
The Televis distance-managed systems can tions of the instrument are associated by set- the  AL folder.
be connected through TTL serial port (the ting appropriately the correct parameters The regulation of the maximum and mini-
TTL- RS 485 BUS ADAPTER 100 interface (see the parameter table of the folder with mum temperature alarm refers to the
module must be used). To configure the  Lin label) thermostat probe (probe 1) and/or dipaly
instrument for this purpose you need to probe (probe 3) . The temperature limits
access to the folder identified by the  Add NIGHT & DAY CONTROL are defined by  HAL (maximum alarm),
label and to use the  dEA and  FAA para- The Night & Day control algorithm allows to  LAL (minimum alarm) and PbA (alarm
meters. set events and cycles at predefined times of configuration on probe 1,3 or both) para-
the week. You can set an event start time meters.
and duration, as well as the functions and
defrostings (daily or festive ) to be enabled.
By pressing the  set key when the related
KEYBOARD LOCKING  nad label appears, the label d0 is dis- MAXIMUM AND MINIMUM TEMPERA-
ID 985 LX (/C /CK) 2/8
TURE ALARM configured as alarm, and by deactivating household appliances and/or similar refrig-
In case of alarm condition, if alarm exclu- compressor, defrost and fan controls (if eration equipment and has been tested
sion times are not in progress (see, alarm specified by the  EAL parameter). This with regard to the aspects concerning
exclusion parameters), the fixed alarm icon alarm condition can be viewed in the  AL European reference standards on safety. It
is turned on and the relay configured as folder with the label  EA . The relay can be is classified as follows:
an alarm is activated. This kind of alarm silenced; even if alarm icon starts blinking, " according to its manufacture: as an auto-
does not affect the regulation in progress. controls stay locked until the next time the matic electronic control device to be incor-
Alarms are considered as absolute digital input is deactivated. porated by independent mounting;
(default) values or as values related to the " according to its automatic operating fea-
Setpoint (the distance from the Setpoint OPEN DOOR ALARM tures: as a 1B-type operated control type;
itself) and based on the Att parameter. In In case of an open door, in response to " as a Class A device in relation to the cat-
this case (Att=1), the HAL parameter must delay defined by tdO parameter the Open egory and structure of the software.
be set to positive values and the LAL para- Door alarm is signaled. The alarm is sig- UNPERMITTED USE
meter to negative values. naled by turning on the blinking alarm Any other use other than that permitted is
This alarm condition can be viewed in the icon. This alarm condition can be viewed in de facto prohibited. It should be noted
folder  AL with the labels  AH1-AL1 . the  AL folder with the label  Opd . that the relay contacts provided are of a
ALARM WITH THRESHOLD (PROBE 3) practical type and therefore subject to
fault. Any protection devices required by
MECHANICAL
Table of alarms product standards or dictated by common
ASSEMBLY
sense due to obvious safety reasons should
DISPLAY ALARM be applied externally.
AH1 High temperature alarm (referred to The instrument is designed for panel
the thermostat probe or probe 1)
mounting. Make a hole of 29x71 mm,
RESPONSIBILITY AND
AL1 Low temperature alarm (referred to
insert the instrument and fix it using the
thermostat probe or probe 1)
RESIDUAL RISKS
brackets provided. Do not mount the
AH3 High temperature alarm (referred to
probe 3)
instrument in humid and/or dirty places; it
AL3 Low temperature alarm (referred to
is suitable for use in ordinary polluted Invensys Controls Italy S.r.L. shall not be
probe 3)
places. Ventilate the place in proximity to liable for any damages deriving from:
Ad2 Defrost end due to time-out
EA External alarm
the instrument cooling slits. - installation/use other than that prescribed
Opd Open door alarm
and, in particular, that which does not
E7 Master-Slave communication failed
comply with safety standards anticipated
(/CK models)
ELECTRICAL
E10 Clock battery alarm (/C /CK models) by regulations and/or those given herein;
CONNECTIONS
- use on boards which do not guarantee
To silence the alarm, press any key.
adequate protection against electric shock,
In this case the LED will blink
Warning! Never work on electrical connec- water or dust under the conditions of
tions when the machine is switched on. assembly applied;
By setting the PbA=3 parameter an alarm The instrument is equipped with screw ter- - use on boards which allow access to dan-
is associated to probe 3. It refers to a spe- minal boards for connection of electrical gerous parts without the use of tools;
cific threshold (definded by the SA3 para- cables with a diameter of 2,5 mm2 (one - tampering with and/or alteration of the
meter). Furthermore, an over-temperature conductor only per terminal for power product;
or an under-temperature alarm is generat- connections): for the capacity of the termi- - installation/use on boards that do not
ed and the icon is turned on. This alarm nals, see the label on the instrument. The comply with the standards and regulations
condition can be viewed in the  AL folder relay contacts are voltage free. Do not in force.
with the labels  AH3-AL3 . The alarm is exceed the maximum current allowed; in
managed as a temperature alarm referred case of higher loads, use an appropriate
DISCLAIMER
to probe 3: refer to standard delays and contactor. Make sure that power supply
back swings voltage meets the instrument voltage. This manual and its contents remain sole
Probes have no connection polarity and property of Invensys Controls Italy S.r.L.,
DEFROST ALARM can be extended using a regular bipolar and shall not be reproduced or distributed
If defrost ends because of a time-out cable (note that the extension of the without authorization. Although great care
(instead that because of a defrost end tem- probes affects the EMC electromagnetic has been exercised in the preparation of
perature detected by the defrosting compatibility of the instrument: pay this document, Invensys Controls Italy S.r.L.
probe), an alarm is generated an the icon extreme attention to wiring). Probe cables, cannot accept any liability whatsoever con-
is turned on consequently. This condition power supply cables and the TTL serial nected with its use. The same is said for
can be viewed in the  AL folder with the cables should be distant from power any person or company involved in the
label  Ad2 . Automatic back swing occurs cables. preparation and writing of the manual.
when the next defrost starts. By pressing Invensys Controls Italy S.r.L. reserves the
any key during the alarm condition, the right to make any changes or improve-
CONDITIONS OF USE
signal light disappears. In order to really ments without prior notice.
erase the alarm you must wait the next PERMITTED USE
defrost. For safety reasons the instrument must be
installed and used according to the instruc-
EXTERNAL ALARM tion provided and in particular, under nor-
The device includes the possibility to con- mal conditions, parts bearing dangerous
trol an external alarm, from a digital input. voltage levels must not be accessible. The
If the digital input is active, the alarm con- device must be adequately protected from
trol is activated, if programmed, and stays water and dust as per the application and
until the next time the digital input is deac- must also only be accessible via the use of
tivated. The alarm is signaled by turning on tools (with the exception of the frontlet).
the fixed alarm icon, by activating the relay The device is ideally suited for use on TECHNICAL DATA
ID 985 LX (/C /CK) 3/8
Front panel protection: IP65.
Container: plastic in PC+ABS UL94 V-0
resin casing, polycarbonate glass, thermo-
plastic resin keys.
Size: front panel 74x32 mm, depth 60 mm.
Mounting: panel, with 71x29 mm (+0.2/0.1
mm) drilling template.
Usage temperature: 5& 55 °C.
Storage temperature: 30& 85 °C.
Usage environment humidity: 10& 90 % RH
(non-condensing).
Storage environment humidity: 10& 90% RH
(non-condensing).
View range: -50& 110 (NTC); -50& 140
(PTC) °C without decimal point (set by
parameter), on a 3 and a half digits display
and a plus sign.
Analogue inputs: three PTC or NTC inputs
(set by parameter).
Digital inputs: 2 voltage-free digital inputs
that can be set by parameter.
Serial: TTL for connecting a Televis system
or a Copy Card.
Digital outputs: 4 outputs on relay:
first output (A) SPDT 8(3)A 250Va, second
and third output (B-C) SPST 8(3)A 250Va,
fourth output (D) SPST 5(2)A 250Va.
Link: Output for Link network
(only for /CK models)
Measurement range: from 50 to 140 °C.
Accuracy: better of 0,5% than the end of
scale +1 digit.
Resolution: 1 or 0.1 °C.
Consumption: 3 VA.
Power supply: 12 Va/c Ä…10% 50/60 Hz
Warning: check the power supply indicated
on the label of the instrument; for any
information about the relay current carry-
ing capacity and the power supply, contact
the trade office.
AVAILABLE MODELS
Model Features
ID 985LX Base model without LINK and
without CLOCK
ID 985LX/C Model without LINK, with
CLOCK
ID 985LX/CK Model with LINK and with
CLOCK
Please Note:
C= CLOCK
K=LINK
ID 985 LX (/C /CK) 4/8
Tab. 1 Table of parameters
PAR. DESCRIPTION RANGE DEFAULT VALUE* LEVEL** U.M.
COMPRESSOR REGULATOR (folder with  CP label)
diF diFferential. The compressor stops on reaching the Setpoint value (as indicated by the 0.1...30.0 2.0 1 °C/°F
adjustment probe), and restarts at temperature value equal to the Setpoint plus the value
of the differential. Note: the value 0 cannot be assumed.
HSE Higer SEt. Maximum possible setpoint value. LSE..302 99.0 1 °C/°F
LSE Lower SEt. Minimum possible setpoint value. -55.0...HSE -50.0 1 °C/°F
OSP Offset SetPoint. Temperature value to be added algebraically to the setpoint in the case -30.0...30.0 0 2 °C/°F
of reduced set enabled (Economy function). The reduced set can be enabled by a key
configured on purpose.
Cit Compressor min on time. Minimum compressor activation time before any possible dis- 0...250 0 2 min
abling. If set at 0 it is not active
CAt Compressor mAx on time. Maximum compressor activation time before any possible dis- 0...250 0 2 min
abling. If set at 0 it is not active.
COMPRESSOR PROTECTIONS (folder with  CP label)
Ont On time (compressor). Compressor activation time in the event of faulty probe. If set to 0...250 0 1 min
 1 with Oft at  0 the compressor is always on, while at Oft >0 it functions always in
duty cycle mode.
OFt OFF time (compressor). Compressor in disabled state time in the event of a faulty probe. 0...250 1 1 min
If set to  1 with Ont at  0 the compressor is always off, while at Ont >0 it functions
always in duty cycle mode.
dOn delay (at) On compressor. Delay time in activating the compressor relay after switch-on of instrument. 0...250 0 1 sec
dOF delay (after power) OFF. Delay after switch off; the indicated time must elapse between 0...250 0 1 min
switch-off of the compressor relay and the successive switch-on.
dbi delay between power-on. Delay between switch-ons; the indicated time must elapse 0...250 0 1 min
between two successive switch-ons of the compressor.
OdO (!) delay Output (from power) On. Delay time in activating the outputs after switch-on of 0...250 0 1 min
the instrument or after a power failure. 0= not active.
DEFROSTING REGULATOR (folder with  dEF label) (6)
dty defrost type. Type of defrost. 0/1/2 0 1 num
0 = electrical defrost;
1 = cycle reversing defrost (hot gas);
2 = Free mode defrost (compressor disabling).
dit defrost interval time. Interval between the start of two successive defrosting operations. 0...250 6h 1 hours/min/s
0= the function is disabled (defrost is NEVER performed) ec (see dt1)
U.M. Hours (default) /min/sec depending on dt1 parameter
dt1 defrost time 1. Measure unit for time intervals between defrosting ( dit parameter). 0/1/2 0 2 num
0 =  dit parameter in hours;
1 =  dit parameter in minutes;
2=  dit parameter in seconds.
dt2 defrost time 2. Measure unit for defrosting duration ( dEt parameter). 0/1/2 1 2 num
0 =  dEt parameter in hours;
1 =  dEt parameter in minutes;
2 =  dEt parameter in seconds.
dCt defrost Counting type. Selection of count mode for the defrosting interval. 0/1/2 /3 1 1 num
0 = compressor hour of operation (DIGIFROST® method); Defrosting active ONLY with 0=df
the compressor on. 1=rt
NOTE: compressor time of operation is counted regardless the evaporator probe (count- 2=SC
ing is active if evaporator probe is absent or faulty). The value is ignored if RTC is 3=RTC
enabled.
1 = Real Time - equipment hours of operation; defrost counting is always active when the
machine is on and starts at each power-on.
2 = compressor stop. Every time the compressor stops a defrost cycle is performed
according to the dtY
3= parameter with RTC. Defrostings at times set by d1& d87 parameters, F1& F8
 dd (6) d1& d8 daily defrost start time 1& 8. Range 0& 23, 24= off (default) 0...23/0...59 24 1 hours/min
 Fd (6) festive defrost start time 1& 8. Range 0& 23, 24= off (default) 0...23/0...59 24 1 hours/min
WARNING: d1& d8, F1& F8 parameters are visible only if dit=0, dCt=3 with clock option
present. They are included in the dd and Fd folders
dOH defrost Offset Hour. Start-of-defrosting delay time from start up of instrument. 0...59 0 1 min
dEt defrost Endurance time. Defrosting time-out; determines duration of defrosting. 1...250 30min 1 hours/min/s
defrosting. U.M. minutes (default) /hours/sec depending on dt2 parameter ec (see dt2)
dSt defrost Stop temperature. Defrosting end temperature (determined by the evaporator -50.0... 150 8.0 1 °C/°F
probe).
dPO defrost (at) Power On. Determines if at start-up the instrument must enter defrosting (if n/y n 1 flag
the temperature measured by the evaporator allows this operation).
y = yes, starts defrost at start-up; n = no, doesn t start defrost.
tcd time compressor for defrost. Minimum time for compressor On or OFF before defrost. -31...31 0 2 min
If >0 (positive value) the compressor will be ON for tcd minutes; If<0 (negative value)
the compressor will be OFF for tcd minutes. If =0 parameter is disregarded If =0 is
ignored
Cod Compressor off (before) defrost. Time for compressor OFF in proximity of the defrost 0& 60 0 2 min
cycle. If a defrost cycle is set within the programmed time for this parameter, the com-
pressor is not started up. If =0 function is stopped.
FANS REGULATOR (folder with  FAn label)
FPt Fan Parameter type.  FSt parameter mode. It can be expressed as temperature absolute 0/1 0 2 flag
value or as a value related to the Setpoint. 0 = absolute; 1 = relative.
FSt Fan Stop temperature. Fan lock temperature; a value, read by the evaporator probe high- -50.0..150.0 2.0 1 °C/°F
er than the set value causes the fans stop. The value is positive or negative and depend-
ing on FPt parameter could represent the temperature in absolute value or relative to
Setpoint.
Fot Fan on-start temperature. Fan start temperature; if the temperature read by the evapora- -50.0..150.0 -50.0 1 °C/°F
tor is lower than the value set for this parameter, the fans stay still.
The value is positive or negative and depending on FPt parameter could represent the
temperature in absolute value or relative to Setpoint.
FAd FAn differential. Fan activation intervention differential (see par.  FSt and  Fot ). 1.0& 50.0 2.0 1 °C/°F
ID 985 LX (/C /CK) 5/8
PAR. DESCRIPTION RANGE DEFAULT VALUE* LEVEL** U.M.
Fdt Fan delay time. Delay time at fan activation after a defrosting cycle. 0...250 0 1 min
dt drainage time. Dripping time. 0...250 0 1 min
dFd defrost Fan disable. It allows to select or to not select the exclusion of the evaporator n/y y 1 flag
fans during defrosting. y = yes; n = no.
FCO Fan Compressor OFF. It allows to select or to not select fan lock when compressor OFF n/y/dc y 1 num
(switched off).
y = fans active (with thermostat; in response to the value read by the defrost probe, see
 FSt parameter);
n = fans off;
dc = duty cycle (through  Fon and  FoF parameters).
Fod Fan open door open. Fans active when the door is open n/y n 2 flag
Allows to select the fans stop when door is open, and the fan re-start when door will be
closed (if they we active). n=fans stop; y=fans unchanged
FdC Fan delay Compressor off. Fan switch off delay dime after compressor stop. 0..99 0 2 min
In minutes. =0 function excluded
Fon Fan on (in duty cycle). Time the fans are ON in a duty cycle. Use of fans in duty cycle 0..99 0 1 min
mode; valid for FCO = dc and H42=1 (evaporator probe present)
FoF Fan oFF (in duty cycle). Time the fans are OFF in a duty cycle. Use of fans in duty cycle 0..99 0 1
mode; valid for FCO = dc and H42=1 (evaporator probe present)
ALARMS (folder with  AL label)
Att Alarm type. Parameter  HAL and  LAL modes, as temperature absolute values or as dif- 0/1 0 2 flag
ferential compared to the Setpoint.
0 = absolute value; 1 = relative value.
AFd Alarm Fan differential. Alarm differential. 1.0...50.0 2.0 1 °C/°F
HAL (5) Higher ALarm. Maximum temperature alarm. Temperature value (with regard to Setpoint, LAL...150.0 50.0 1 °C/°F
or as an absolute value based on Att) which if exceeded in an upward direction triggers
the activation of the alarm signal.
LAL (5) Lower ALarm. Minimum temperature alarm. Temperature value (with regard to Setpoint, -50.0...HAL -50.0 1 °C/°F
or as an absolute value based on Att) which if exceeded in a downward direction triggers
the activation of the alarm signal.
PAO (!) Power-on Alarm Override. Alarm exclusion time after instrument switch on, after a power 0...10 0 1 hours
(8) failure.
dAO defrost Alarm Override. Alarm exclusion time after defrost. 0..999 0 1 min
OAO Alarm signaling delay after digital input disabling (door open). 0& 10 0 1 hours
Alarm is only for high-low temperature alarms.
tdO time out door Open. Time out after alarm signal following digital input disabling (door 0...250 0 2 min
open)
tAO (8) temperature Alarm Override. Temperature alarm signal delay dime. 0...250 0 2 flag
dAt defrost Alarm time. Alarm signal for defrost end due to time-out. n/y n 1 min
n = activates alarm; y = does not activate alarm.
EAL External Alarm Lock. External alarm to lock loads. n/y n 2 flag
AOP Alarm Output Polarity. Polarity of alarm output. 0/1 1 2 flag
0 = alarm active and output disabled;
1 = alarm active and output enabled.
PbA Configuring temperature alarm on probe 1 and/or 3. 0& 3 0 2 min
0 = alarm on probe 1 (thermostation);
1 = alarm on probe 3 (display) ;
2 = alarm on probes 1 and 3 (both thermostation and display);
3 = alarm on probes 1 and 3 (both thermostation and display) on external thresold;
SA3 Probe 3 alarm Set-Point (display) -50.0& 150.0 0 2 °C/°F
dA3 Probe 3 alarm differential (display) -30.0& 30.0 2.0 2 °C/°F
LIGHTS AND DIGITAL INPUTS (folder with  Lit label)
dSd Enabling light relay by door switch. n/y y 2 num
n = door open, the light does not turn on;
y = door open, the light turns on (if it was off).
dLt Light relay disabling (switch off) delay (cell light). The cell light will remain on for dLt 0& 31 0 2 flag
minutes after closing the door if dSd parameter is set for this.
OFL Light switch always disables light relay; enable the switching off through light switch even n/y n 2 min
if it is enable the delay after closing the door (set by dLt)
dOd digital input switches off loads . On digital input command, programmed as door-switch, n/y n 2 flag
allows to stop all the loads when opening the door and re-starting then when the door
will be closed.
dAd loads digital input enabling delay. 0& 255 0 2 flag
(ONLY FOR /CK MODELS) LINK REGULATOR (folder with  Lin label)
L00 It allows to select the instrument as Master (0), Slave (from 1 to 7), Echo(0, in this case 0...7 0 2 min
the Echo is a repetitor of the Master also if connected to a Slave)
L01 Referred to the Master only. Number of Slaves in the network (from 0 to 7). For 0...7 0 2 num
Slaves/Echoes leave the value =0
L02 Presence of local Echoes referred to the single Slave. 0 = local Echo not present; 0/1/2 0 2 num
1 = local Echo present sharing the Slave view at fixed intervals; if Master or Slave identi-
fies that the device is active, and shares in the network, at fixed intervals it s local view.
2 = Echo shows the display of the Slave associated (Slave and associated Echo should
have the same L00 address)
L03 Referred both to Master and Slave. Simultaneous/sequential defrosting. n/y n 2 num
Master: n = simultaneous; y = sequential. Slave: n = ignore; y = accept.
L04 Referred to Slave only. n = The Slave shows local values; y = The Slave shows the display n/y y 2 flag
of the Master
L05 Referred both to the Master and the Slave. Master: n = does not request to Slaves to n/y n 2 flag
activate remote functions; y = requests to Slaves to activate remote functions. Slave:
n = ignores remote functions activation; y = accepts remote functions activation.
L06 Locks resources (compressors, fans, etc) at the end of defrosting. n=no; y=yes n/y y 2 flag
(ONLY FOR /C /CK MODELS) NIGHT/DAY REGULATOR (folder with  nad label)
E00 Functions disabled during events: 0 = management disabled; 1 = reduced set; 0...4 0 2 num
2 = reduced set+light; 3 = reduced set+light+aux. 4= instrument off
E01 Event start hours/minutes. Sets the event start time. Starting from this time the  night 0...23/0...59 0 2 hours/min
mode will be enabled. The length is determined by E02 parameter
E02 First event duration. Set the event length 0/1 0 2 flag
E03 Enabling daily or festive defrosting lock. PLEASE NOTE: doesn t affect on defrosting at 0...99 0 2 hours
intervals like Every Day event
ID 985 LX (/C /CK) 6/8
PAR. DESCRIIPTION RANGE DEFAULT VALUE* LEVEL** U.M.
COMMUNICATION (folder with  Add label)
dEA (!) dEvice Address. Device address: indicates the appliance address to the management pro- 0...14 0 1 num
tocol. dEvice Address.
FAA (!) Family Address: indicates the appliance family to the management protocol. 0...14 0 1 num
DISPLAY (folder with  diS label)
(keyboard) LOCk. Keyboard locking. It is still possible to enter parameter programming
LOC and modify them, including the status of this parameter, in order to allow keyboard n/y n 1 flag
unlocking. y = yes; n = no.
PA1 PAssword 1. When enabled (value different from 0) it represent the access key for level 1 0...250 0 1 num
parameters.
PA2*** PAssword 2. When enabled (value different from 0) it represents the access key for level 0...255 0 2 num
2 parameters.
ndt number display type. View with decimal point. y = yes; n = no. n/y n 1 flag
CA1 CAlibration 1. Calibration 1. Positive or negative temperature value added to the value -12.0...12.0 0 1 °C/°F
read by probe 1, based on  CA parameter settings.
CA2 CAlibration 2. Calibration 2. Positive or negative temperature value added to the value -12.0...12.0 0 1 °C/°F
read by probe 2, based on  CA parameter settings.
CA3 CAlibration 3. Calibration 2. Positive or negative temperature value added to the value -12.0...12.0 0 1 °C/°F
read by probe 3, based on  CA parameter settings.
CA CAlibration Intervention. Intervention on view offset, thermostat offset or both. 0/1/2 2 2 num
0 = modifies the temperature displayed only;
1 = adds to the temperature used by regulators, not to the temperature displayed, which
stays unchanged;
2 = adds to the temperature displayed that is also used by regulators.
LdL Low display Label. Minimum value the instrument is able to display. -55.0...302 -55.0 2 °C/°F
HdL High display Label. Maximum value the instrument is able to display. -55.0..302 140.0 2 °C/°F
ddL defrost display Lock. Viewing mode during defrosting. 0/1/2 1 1 num
0 = shows the temperature read by the thermostat probe;
1 = locks the reading on the temperature value read by thermostat probe when defrost-
ing 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.
Ldd Lock defrost disable. Time-out value for delock display (DEF label) if reaching the set- 0& 255 0 1 min
point is too long during defrosting, or if the Link (Master-Slave) communication fails (E7
error)
dro display read-out. Select °C or °F for displaying the temperature read by the probe. 0 = 0/1 0 1 flag
°C, 1 = °F. PLEASE NOTE: the switch between °C and °F DO NOT modify setpoint, differ-
ential, etc. (for example set=10°C become 10°F).
ddd Selection of the value type to be shown on the display. 0/1/2/3 1 2 num
0 = Setpoint;
1 = probe 1(thermostat);
2 = probe 2(evaporator);
3 = probe 3 (display).
CONFIGURATION (folder with  CnF label)
H00 (1) (!) Probe type selection, PTC or NTC. 0 = PTC; 1 = NTC. 0/1 1 1 flag
H02 Time to enable keys, if these are configured for a specific function. For ESC, UP and 0...15 5 2 sec
DOWN keys configured for specific function (defrost, aux, etc) it set the elapsed time for
the manual activation of the related function. aux function has a fixed time of 1 second
H06 key/input aux/door switch light active when instrument is off (but under tension) n/y y 2 flag
H08 Stand-by operating mode. 0=display switch off; 1= diplay on and loads stopped; 21= dis- 0/1/2 2 2 num
play off and loads stopped;
H11 (7) Configuring digital inputs/polarity. -8& 8 0 2 num
0= disabled;
1 = defrosting;
2 = reduced set;
3 = auxiliary;
4 = door switch;
5 = external alarm.
*6 = disable store HACCP alarms (*only in HACCP models)
7 = stand-by (ON-OFF)
8 = maintenance requested
H12 (7) Configuring digital inputs/polarity. The same as H11. 0 = disabled; -8& 8 0 2 num
(7) WARNING! positive or negative values change polarity
H21 (!) Digital output 2 configurability. (B) 0...8 1 2 num
0 = disabled;
1 = compressor; (default)
2 = defrosting;
3 = fans;
4 = alarm;
5 = auxiliary.
6 = stand-by
7 = light
8 = maintenance requested
H22 (!) Digital output 1 configurability. (A) 0...8 2 2 num
The same as H21. (2= defrosting; default)
H23 (!) Digital output 3 configurability. (C) 0...8 3 2 num
The same as H21. (3= fans; default)
H24 (!) Digital output 4 configurability. (D) 0...8 4 2 num
The same as H21. (4= alarm; default)
H25 (!) PARAMETER VISIBLE IN MODELS WITH BUZZER. Configurability buzzer. (if present) 0...8 8 2 num
0 = disabled; 8= enabled (default); 1-7= not used
H31 (!) Configurability UP key. 0..8 0 2 num
0 = disabled;
1 = defrosting;
2 = auxiliary;
3 = reduced set (economy).
*4 = reset HACCP alarms (*only in HACCP models)
*5 = disable HACCP alarms (*only in HACCP models)
6 = light
7 = stand-by
8 = maintenance requested
ID 985 LX (/C /CK) 7/8
PAR. DESCRIIPTION RANGE DEFAULT LEVEL** U.M.
H32 (!) Configurability DOWN key. 0...8 0 2 num
Same as H31. (0= disabled; default)
H33 (!) Configurability ESC key. 0& 8 0 2 num
Same as H31. (0= disabled; default)
H41 Control probe presence. n= not present; y= present. n/y y 2 flag
H42 Evaporator probe presence. n= not present; y= present. n/y y 2 flag
H43 Display probe presence. n= not present; y= present. n/y n 2 flag
reL reLease firmware. Device version: read only parameter. / / 1 /
tAb tAble of parameters. Reserved: read only parameter. / / 1 /
COPY CARD (folder with  Fpr label)
UL Up load. Programming parameter transfer from instrument to Copy Card. / / 1 /
dL Down load. Programming parameter transfer from Copy Card to instrument. / / 1 /
Fr Format. Erasing all parameters in the Copy Card. / / 1 /
PLEASE NOTE: using  Fr parameter (Copy Card formatting) the data within the
Copy Card will be lost permanently. The operation cannot be cancelled.
(1) The default value is 1 (NTC input, see the label on the instrument).
(2) Positive values: active input when the contact is closed; negative values: 1= Active when contact is open
(3) This parameter is visible in versions with optional buzzer.
(5) If alarm are relative, the HAL parameter must be set to positive values and the LAL parameter to negative values
(6) Within the deF folder two folders:  dd (daily defrost) and  Fd (Festive Defrost); the first folder includes d1& d8 parameters (working day defrost start); the second
folder, instead includes F1& F8 parameters (Festive defrost). The two folders are visible only if dit =3 and RTC is present.
(7) WARNING! positive or negative values change polarity
(8) Referred exclusively to high and low temperature alarms
* VALUE column: to be filled manually, with custom settings (if different from the default value).
** LEVEL column: indicates the level of visibility for parameter that can be accessed by a PASSWORD (see the related paragraph)
*** PA2 is visible (it will be requested, if specified) at level 1 and can be set (it can be modified) at level 2
(!) WARNING!
" If one or more of these parameters highlighted with (!) are modified, the controlller 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
" folder with  nad label NIGHT/DAY REGULATOR: ONLY FOR /C /CK MODELS
" folder with  Lin label LINK REGULATOR: ONLY FOR /CK MODELS
+
-
A
1 2 3 4 5 6 7 8 9 10 11
(A) (B) (D)
(C)
12 13 15 17 ID 985 LX - 12 V
14 16 18 19
TERMINALS
1 - 2 Probe 1 (thermostat) input
1 - 3 Probe 2 (evaporator) input
1 - 4 Probe 3 (display) input
5 - 6 Digital input 2
5 - 7 Digital input 1
8 - 9 Link (powered; 8= -, 9= +) ONLY FOR /CK MODELS
10 - 11 Power supply
12 - 13 N.O. Defrost relay (A)
12 - 14 N.C. Defrost relay (A)
Invensys Controls Italy s.r.l
15 - 16 N.O. Compressor relay. (B)
via dell'Industria, 15 Zona Industriale Paludi
15 - 17 N.O. Fan relay (C)
32010 Pieve d'Alpago (BL) ITALY
18 - 19 N.O. Alarm relay (D)
Telephone [phone]
Facsimile [phone] A TTL input for Copy Card and connection
Internet http:/www.climate-eu.invensys.com
to Televis system
NOTE: Default user settings
12/2002 eng
cod. 9IS52080
ID 985 LX (/C /CK) 8/8
Wiring diagram