ELREHA TAR 1310 User manual

Three seconds after applying voltage to the
controller the actual temperature of the room
sensor is being displayed.
Calling up Parameters
Upon pressing the "Programming" key one of
theparametersnumbersisdisplayedwhichare
listed on page 4 of this manual. Using the ñor
òkey, you can select any other parameter.
Uponpressing"P"again,thevalueoftheselec-
ted parameter is displayed.
Editing Parameters
Adisplayedvalue canbeedited byuseof theñ
andòkeys.Pressing"P"againbringsyouback
to the parameter list and loads the edited value
into the controller.
Unlock Keys
To prevent un-authorized persons from editing
parameter values, there is a locking function
which allows only the setpoint to be changed at
any time. All other parameters must be unlok-
ked beforehand. This means that at parameter
P33 a certain value is to be set (---88---) :
- Press "P",
- Use "ñ" to select parameter P33
- Press "P" again
- Use "ñ" to set value to --88--
- Press "P" again to select parameter to edit.
If no key is hit for about one minute, the access
code is cancelled and the editing function is
locked automatically.
ELEKTRONISCHE REGELUNGEN GMBH
General
The TAR x31x series controller was designed
for controlling refrigeration and freezer devices
with all their necessary functions. There are
three standard relay outputs available and all
operation is made from the front.
Features
Followingfunctionsandfeaturesareincludedin
the standard type of this controller:
- Displaying actual and set temperatures
( optional °C / °F )
- Temperature control with different switching
modes.
- Internal defrost timer, different defrost modes
- Defrost termination by time and/or tempera-
ture
- Fan control by time or temperature
- Temperature warning (high/low, time-delay-
ed) with integrated buzzer
- Manual defrost
- Sensor correction
Operating and Programming
Operating the TAR is very easy since all para-
meters can be shown and edited by means of
only three keys.
D-68766 Hockenheim
Schwetzinger Str. 103
Telefon 0 62 05 / 2009-0
Telefax 0 62 05 / 2009-39
Technical Manual
On TAR 2300 the keys are located differently.
Refrig/Freezer Contr.
TAR 1310 / 2310 / 4310
5310923- 06/02 E
valid for Software No.950627
P
TAR ELREHA
1 2 3
Relay position
increase
values
decrease
values
Programming
Display

5310923-06/02UK
Technical Manual TAR 1310 / 2310 / 4310Page 2
3= Heating
Temperature Warning
A built-in buzzer comes on when the room
temperature exceeds the range set with para-
meters P22/P23 and the time delay set with
parameter P24 is over. A relay (K3) is available
for remote warning purposes if it is not used for
fan control.
Youcancelthealarmbypressinganykey.Ifthe
K3 relay was selected for alarm function, it will
come ON again after the set time delay as long
and as often as the temperature stays in the
warningarea.ParameterP29indicatesthetime
to go for the next warning event.
With parameter P25 you set the alarm mode:
0= Buzzer only, relay K3 is used for
fan control
1= Buzzer + Relay K3; the relay operates
fail-safe (de-energized on alarm)
2= Buzzer + Relay K3; the relay operates
active (energized on alarm)
Internal Timer
The internal timer allows you to set up to four
defrost events per day with parameters P13
through P16. The defrost times are set in 10
minute incrementsina24hour(military)format.
ThetimeofthedayissetwithparameterP31for
the hour and P32 for the minutes. The timer is
power backed up for about 10 days on power
failure. Because the display has three digits
only the time value comes in the following for-
mat:
Function
Display
Alltemperaturevaluescanbedisplayedin°Cor
°F. Parameter P08 allows toggling these two
display modes.
Temperature Control
The controller compares the actual room tem-
perature with the setpoint (P03) and, according
to the deviation, energizes or de-energizes re-
lay K1. In order to be fail-safe in case of any
internal power failure, there is a possibility of
selectingthecorrectswitchingmode.Inrefrige-
ration mode the n/o relay contacts are used so
that the load is shut off in case of failure. In
freezing mode the load is connected to the n/c
contact, having the load running constantly in
case of failure.
The switching hysteresis (differential) is adju-
stable to prevent the system from short cycling
(parameterP04).WithparametersP05/P06you
can limit the setpoint range.
The switching mode (explained before) is set
with parameter P07.
1= Refrigeration
2= Freezing
temp.
setpoint
(P02)
hysteresis
(P03)
temperature
relay de-ener
g
ized
time
relay ener
g
ized
temp.
temperature
setpoint
(P02)
hysteresis
(P03) relay ener
g
ized
time
relay de-ener
g
ized
rela
y
ener
g
ized
temp.
setpoint
(P02)
h
y
steresis
(P03)
temperature
relay de-energized
time
3rd Position=
minutes x 10
1st and 2nd
Position=
hours
Example: 13.20 = 01:20 p.m.

5310923-06/02UK
Technical Manual TAR 1310 / 2310 / 4310 Page 3
Defrosting
One relay output contact is used to control a
defrostingdevice.Defrostingcanbeinitiatedby
theinternaltimerormanually.Thedefrosttimes
are set with parameters P13 thru P16.
The defrosting device is always driven from the
n/o contact of relay K2. There is no need for
interlockingthedefrostwiththecoolingfunction
since with parameter P12 you select the de-
frosting mode and the controller automatically
decides on the cooling output. For information
there is parameter P26 showing the remaining
time of the momentary defrost cycle until termi-
nation by time.
Defrosting Modes (set with P12)
Refrigeration (precondition P07=1)
1=
Heater or Free Air Defrost
Relay K2 is energized and K1 is de-energi-
zed.
2= Hot Gas Defrost
Relays K2 and K1 are energized.
Freezing (precondition P07=2)
1= Hot Gas Defrost
Relay K2 is energized and K1 is de-energi-
zed.
2= Heater or Free Air Defrost
Relay K2 is energized and K1 is energized
.
Manual Defrost
Parameter P30 allows you to start a defrost
cycle with the "ñ" key, unless the sensor is
already above termination temperature.
Defrost Termination
There are three ways for terminating a defrost
cycle:
1st: thermal termination.
Whenever the evaporator sensor tem-
perature (P02) is warmer than the tem-
perature limit set with parameter P11,
defrosting is terminated.
2nd: termination by (safety) time.
The time set with parameter P17 is the
maximum time a defrost cycle can last
before it is terminated automatically.
3rd: manual terminating.
Underparameter P30youcantermina-
te a defrost cycle by pressing the "ò"
key.
Evaporator Fan Control
TheK3relaycanbeusedforcontrollingthefan,
if it is not used for alarm purposes (see P25).
Different modes of fan operation can be selec-
ted with parameter P20.
Fan Modes
1 = Fan runs when compressor output (K1) is
on. After defrosting, the fan output is OFF
untiltheprogrammedFanDelayTime(P21)
is complete. .
2 = Fanrunscontinously,exceptduringdefrost
and Fan Delay Time (P21).
3 = Fan runs when the compressor output (K1)
is on, and during defrost. There is no fan
delay time.
A thermostatic fan control is always available.
Fan runs when sensor temperature (P02) is
below setpoint for the programmed Fan Start/
Stop Temperature (P19).
If you don't need this function, set parameter
P19 to the highest value.
The fan is always run from the n/o contact of
relay K3.
Whenfandelayisactive,parameterP28shows
the remaining time.

5310923-06/02UK
Technical Manual TAR 1310 / 2310 / 4310Page 4
Parameter Listing
*) AUS = OFF
Para-
meter Disp only no Code Description Range Default value
P01 XActual Temperature Control Sensor (°C / °F)
P02 XActual Temperature Evaporator Sensor
(°C/°F)
P03 XControl Setpoint Upper limit (P05)...low limit (P06) °0 C
P04 Control differential (hysteresis) 0...10K / 0...17 F 2K
P05 Setpoint high limit -50°C...50°C / -57°F...121°F 50°C
P06 Setpoint low limit -50°C / -57°F.......upper limit -50°C
P07 Switching Mode Relay K1 1= Refrigeration,
2= Freezing,
3= Heating 1 (Refrig.)
P08 Display Mode 1= °Celsius 2= °Fahrenheit 1 (°Celsius)
P09 Correction Control Sensor -10K...10K / -17F...17F 0K
P10 Correction Evaporator Sensor -10K...10K / -17F...17F 0K
P11 Defrost Termination Temperature 0...30°C / 32...85°F 10°C
P12 Defrost Method 1=, 2=, depends on (P07) setting,
see text
P13 Defrost time #1 000...235 = 00:00 a.m. ... 11:50 p.m. Aus *)
P14 Defrost time #2 000...235 = 00:00 a.m. ... 11:50 p.m. Aus *)
P15 Defrost time #3 000...235 = 00:00 a.m. ... 11:50 p.m. Aus *)
P16 Defrost time #4 000...235 = 00:00 a.m. ... 11:50 p.m. Aus *)
P17 Defrost (safety) Time 1...99 minutes 30 minutes
P18 Cooling delay (after defrost) 0...99 minutes 0 minutes
P19 Fan Stop/Go Temperature total control range 0°C
P20 Fan Mode 1=,
2=,
3=, see text 1
P21 Fan delay (after defrost) 0...30 minutes 3 minutes
P22 Alarm high limit -50°C...50°C / -57°F...121°F 50°C
P23 Alarm low limit -50°C / -57°F....high limit -50°C
P24 Alarm Delay 1...99 minutes 5 minutes
P25 Alarm / Fan Mode 0= no alarm relay, K3 is fan relay
1= no fan control, K3 warns de-energized
2= no fan control, K3 warns energized 0
P26 Xminutes to go for defrost termination by time
P27 Xminutes to go for cooling to come on
(after defrost)
P28 Xminutes to go for fan to come on
P29 Xminutes to go for alarm being activated
P30 XManual Defrost "key up"= Start Defrost
"key down"= Terminate Defrost
P31 Xtime of the day: hours 0...23 hours
P32 Xtime of the day: minutes 0...59 minutes
P33 XAcces Code (key unlock) 0...99 0

5310923-06/02UK
Technical Manual TAR 1310 / 2310 / 4310 Page 5
Parameters
Defaultvaluesandsettingsarefactory
settings.
Values marked 'X' are for information
only and can not be edited.
Note:
It is possible to reset all
parameters to default:
Switch off supply voltage,
press and hold the 'P'-key,
Switch on supply voltage.
Installation
Before applying voltage to the
controller make sure that all wi-
ring has been made in accor-
dance with the wiring diagram in this manual
and is fitting the application.
Sensor leads may be up to some hundred
meters, but should be shielded cable with one
end of the shield connected to ground. This
avoids irregular switching caused by electro-
magnetic interference.
Applications with Free-Air Defrost
When this defrost method is used, there is no
need for having a defrost sensor at the evapo-
rator.In thiscasethe sensormust be simulated
by a fixed resistor (1.3 kOhms).
The controller then terminates a defrost cycle
only by time which is set with parameter P17.
Getting Started
Upon applying voltage to the controller, the
display reads the temperature of the control
(room) sensor. After you have punched in the
access code (see chapter "unlock keys"), you
programm the configuration of the controller to
suit your application:
switching mode: parameter P07,
display mode: P08,
defrost method: P12
evaporator fan mode: P20,
and/or the alarm mode: P25
Thebasicsetupiscompletenow
and you can edit the setpoints,
delay times etc.
Iffor any reason theactualsen-
sorvaluesdisplayedshouldnot
matchwiththetemperatureyou
read from a high accuracy ther-
mometer, you can correct the error with para-
meter P09/P10.
Failure Mode
In case of sensor failure (short circuit or interrupt)
the display starts flashing and the controller inter-
rupts all functions. If there is a control sensor
failure,thewarningrelaycomesonafterthewarning
time delay is over.
Technical Data
Supply Voltage
TAR 131x ................................ 12 V AC/DC
TAR 231x ................................ 230 V AC
TAR 431x ................................ 230 V AC
Consumption ............................... apr. 3.5 VA
Contact Rating ............................ 8 A resistive
3 A inductive
Temperature range
working.................................... -10....+55 °C
storage .................................... -30....+70 °C
data storage ................................ unlimited
real time clock ............................. power backup
for 10 days
Display ........................................ LED red 1/2"
Relay Position Indicator .............. 1.2 mm red
Buzzer ......................................... 3.5 kHz inter-
mittent
84 dB/30cm
Screw terminals .......................... 2.5 mm
Protection
TAR 131x ................................ IP 54 front
TAR 431x ................................ IP 54
TAR 231x ................................ IP 30

5310923-06/02UK
Technical Manual TAR 1310 / 2310 / 4310Page 6
Dimensions and Wiring TAR 1310
TAR ELREHA
1 2 3
P
77
35
K2
12V
AC/DC
F1 F2
Alarm/ Vent.
K1
40
29
64
70
55
Dimensions and Wiring TAR 4310
ELREHA
PE
8 Fühler gem.
3 K1 Schließer
7 K3 Ventilator
oder Warnen
4 K1 Öffner
5 K1 Wurzel
6 K2 Abtauen
1 Netz L
2 Netz N
10 Abtaufühler
9 Regelfühler
PE
mains phase
mains neutral
relay K1 N/O
relay K1 N/C
relay K1 common
relay K2 N/O relay K3 N/O
sensor common
control sensor
evaporetor sensor

5310923-06/02UK
Technical Manual TAR 1310 / 2310 / 4310 Page 7
Dimensions and Wiring TAR 2310
Gehäuseoberteil entfernen:
Klappe öffnen und Schraube lösen.
136
ELREHA
87,5
P
TAR 2000
34
Bottom Case
Mounting Holes
10 evaporator sensor F2
9 control sensor F1
8 sensor common
7 K3 fan or alarm relay N/O
6 K2 defrost relay N/O
5 K1 control relay N/O
4 common K1, K2, K3
3 K1 control relay N/C
2 mains phase
1 mains neutral

5310923-06/02UK
Technical Manual TAR 1310 / 2310 / 4310Page 8
ELREHA
This manual has been set up with care and to our best knowledge, but mistakes are still possible. If you
have any problems, difficulties or questions please don't hesitate asking our technical support.
Technical details can be changed without notice.
Tel. Operator:... 0 62 05 / 2009-0
Fax:................... 0 62 05 / 2009-39
Technical
Support............. 0 62 05 / 200925
or 200926
set up: 20.6.96 by: tsd/jr
checked: 20.6.96 by: tsk/he
approved: 20.6.96 by: ts/wr
Available Types
TAR _ 3 1 _ sensor TFB 201
0= Range -50°...+50°C
housing
1= Flush Panel
2= Wall Mount
4= Industrial
Accessories
- this manual
- fixing hanger ( TAR 1xxx only )
- temperature sensor TFB 201
*The conformity with IEC 1000-4-3 is derived from the IEC 1000-4-2 and IEC 1000-4-4 test
results.The correlation with IEC 1000-4-3 is based on testresults which are located on site at
the manufacturer.
EG-Statement of Conformity
We state the following: When operated in accordance with the technical manual, the criteria
havebeenmetthatare outlinedin theguidelinesofthecouncilforalignmentofstatutory orders
ofthememberstatesonelectro-magneticconsistency.(89/336/EWG)Thisdeclarationisvalid
for those products covered by the technical manual which itself is part of the declaration.
Following standards were consulted for the confirmity testing with regard to electromagnetic
consistency :
IEC 1000-4-1, IEC 1000-4-2, IEC 1000-4-3*, IEC 1000-4-4, IEC 1000-4-5, EN 55011
B, EN 50081, Teil 1 und 2; EN 50082, Teil 1 und 2
This statement is made from the manufacturer / importer by:
ELREHA Elektronische Regelungen GmbH Klaus Birkner.............................
68766 Hockenheim Developement and leader of the
EMC-Laboratory
(Name / Anschrift /
name / adress )
Hockenheim 18.12.95 ......................................................
Ort/
city Datum/ date Unterschrift/ sign