ELREHA TAR 1380 User manual

Parameters
All selectable parameters hold a parameter number (e.g. P03), you
will find a listing on the next page.
Calling up and editing
Press key 'P' ............ parameter number appears
Use '!/"'................. select desired parameter
Press "P" again ........ parameter value appears
Use keys '!/"'......... adjust parameter value
Press 'P' again ......... value is stored, back to parameter no.
Unlock Keys
Topreventun-authorizedpersonsfromeditingparametervalues,thereis
alockingfunctionwhichallowsonlythemost importantparameterstobe
changedatanytime.Allotherparametersmustbeunlockedbeforehand.
Press key "P" ............. parameter number appears
Use "!/"" ................. select code parameter (P38)
Press "P" again.......... parameter value appears
Use "!" ..................... set value to --88--
Press "P" again.......... value is stored, back to parameter no.
Ifnokeyishitforabo utfourminutes,theaccesscodeiscancelledand
the editing function is locked automatically.
Auto scrolling
Hold '!/"'-keys to scroll values automatically.
Manual Defrost
Manualdefrostcanbeinitiatedoutofprogrammingmodebydepressing
'!' for more than 2 seconds - to terminate: press '"' for more than 2
seconds.
Reading the controller type
Hold key 'P' for more than 2 seconds, the display shows the type of
the controller unit (138).
Set parameters to factory default
- Switch off supply voltage, press and hold the 'P'-key
- switch on supply voltage
- hold the key for about 5 more seconds
While holding the key, the display shows one by one: software-
version, date and 'def.'. 'def' signifies that all parameters are set to
default values now.
ELEKTRONISCHE REGELUNGEN GMBH
Product Description
Cold Storage Controller with 4 relays for Solenoid Valve, Defrost
heater, Fan and Alarm Forwarding. Usable for any kind of cold
storages such as walk-in coolers/freezers, refrigerated shelfs,
refrigerated counters, etc..
Operating Elements
Cold Storage Controller
with Real Time Clock Manual No. 5311009-03/05 E
Software Version 010312
TAR 1380
Start-up / Troubleshooting information you will find
on pages 4 + 5.
Technical Data
Supply Voltage ..................................... 12V AC/DC (11-18V DC)
Power Consumption ....................................................appr. 3 VA
Contact Rating Cooling Relay .......... 10 A (peak 80 A / 10 msec)
other relays.......... 8A cos phi = 1, 3A ind. / 250V
The current over terminal 7 may not increase 12 A !
Operating temperature ............................-10...+55°C (14...131°F)
Storage temperature ..............................-30...+70°C (-22...158°F)
Relative Humidity ......................... max. 80% r.H., not condensing
Display........... LED, 7-segment, red, character height 13mm (.51)
Resolution................................................................ 0,1°C / 0,2°F
Accuracy...................................................................... typ. +/- 1K
Temperature sensors............ TF 201, TF 202 or TF 501 (Pt1000)
Control-/Display Range
with TF 201/202........................ -55...+105°C / -67...221°F
with TF 501 .......................... -110...+120°C / -166...248°F
Data storage parameters .........................................typ. unlimited
Clock backup ..............................typ. 10 days after mains is lost
Relay indicators ........................................................... 3 mm, red
Electrical connection ............................... screw terminals 2,5mm²
Protection ............................................................ IP 54 from front
Accessories (please order separately)
Temperature sensors ................................. 2x TF 201 or TF 501
Transformer ..........................107-1300-0052 (230V/ 12V / 5VA)
Please read this manual carefully before using the product. The guarantee will lapse in case
ofdamagecausedbyfailuretocomplywiththeseoperatinginstructions!Weshallnotbeliable
for any consequent loss! We do not accept liability for personal injury or damage to property
caused by inadequate handling or non-observance of the safety instructions! The guarantee
will lapse in such cases. This manual, which is part of the product, has been set up with care
and our best knowledge, but mistakes may occur. Technical details can be changed without
notice,especiallythesoftware.Pleasenotethatthedescribedfunctionsareonlyvalidforunits
containing the software version-number shown on page 1.
ELREHA Gmbh
D-68766 Hockenheim, Germany, Schwetzinger Str. 103
phone 0 62 05 / 2009-0 - fax 0 62 05 / 2009-39 - [email protected]
Please Note Safety Instructions !
Please note supply voltage when
replacing older types !
Program-
ming /
enter
decimal point flashes
if night setpoint is active
TAR
decrease
values
P
ELREHA
refrig. ON defrost ON
increase
values
fan ON alarm

page 2 Technical Manual TAR Cold Storage Controller TAR 1380
Pleasenotethat youneedadifferent codefor
changing sensor type. Default values are factory set values.
Param. Code Description Range Default Your value
No.
P01 Actual temperature control sensor (°C or °F) display only
P02 Actual temperature evaporator (limit-) sensor display only
P03 no Setpoint Low limit P08...high limit P07 0 °C
P04 88 2nd Setpoint (Night-Setpoint) ± 100 °C (-148...212 °F) 0
P05 88 Start-up of night-setpoint (in 10 minute steps) 0...235, oFF oFF
P06 88 Stop of night-setpoint (in 10 minute steps) 0...235, oFF oFF
P07 88 Highest adjustable setpoint ± 100 °C (-148...212 °F) +50 °C
P08 88 Lowest adjustable setpoint -100°C / -148°F up to (P07) -50°C
P09 88 Setpoint hysteresis 0,3...20,0 K 2 K
P10 88 Switching mode cool. (compressor) relay 1= refrigeration, 2= heating 1 (refrig.)
P11 88 Cooling relay idle time 0...59 minutes 2 minutes
P12 88 Fan operation threshold -100°C... +100°C (hyst. 3K fixed) 50°C
P13 88 Fan operating mode 1=, 2=, 3=, see text 1
P14 88 Fan delay after defrost 0...30 minutes 3 minutes
P15 Remaining minutes till defrost ends display only
P16 Remaining minutes toactivate cooling display only
P17 Remaining minutes to start fan relay display only
P18 Remaining minutes up to an alarm display only
P19 88 Calibration control sensor +/-10,0 K/F 0 K
P20 88 Calibration evaporator sensor, resp. sensor OFF +/-10,0 K/F, oFF 0 K
P21 70 Sensor type / °C or °F / measuring range 1= TF 501 / °C / -110...+120°C 2
2= TF 201 / °C / -55...+105°C
3= TF 501 / °F / -166...248°F
4= TF 201 / °F / -67...221°F
5= TF 202 / °C / -55...+105°C
6= TF 202 / °F / -67...221°F
P22 88 Defrost termination temperature in °C or °F 0,0...30,0°C / 118,0°F 10°C
P23 88 Defrost type (independent from P10) 1= electric, 2= hot gas,
3= electric+AZV, 4= hot gas+AZV 1
P24 88 Defrost event # 1 000...235, oFF (1.+.2 position = hours, oFF
P25 88 Defrost event # 2 000...235, oFF 3.position = minutes x 10) oFF
P26 88 Defrost event # 3 000...235, oFF " oFF
P27 88 Defrost event # 4 000...235, oFF " oFF
P28 88 Defrost safety operation time 1...120 minutes 30 min.
P29 88 Drain time, refrigeration delay after defrost 0...99 minutes 0 min.
P30 88 Alarm mode 0= Alarm relay active ON (N / O)
1= Alarm relay active OFF (N / C)
2 / 3= no function
4= Alarm relay resettable (see text) 1
5= Rel.4 switches with setpoint 2,
alarm indicated by LED
P31 88 Alarm delay
1...99 minutes (if sensor fails always
< 1 minute + flashing display
5 minutes
P32 88 Alarm high limit temperature (relative to P03) 0...100 K 100K
P33 88 Alarm low limit (absolute value) ± 100 °C -100°C
P34 no Clock: hours
P35 no Clock: minutes
P36 no Clock: seconds
P37 no Manual defrost "!"= Start defrost, """= Terminate
P38 no Access Code 0...99 0

Technical Manual TAR Cold Storage Controller TAR 1380 page 3
Display & Sensors
All temperature values can be displayed in °C or
°F with a resolution of 0,1K (0,2°F). Parameter
P21 allows toggling between these two display
modes and to change the type of sensor.
TF201, TF 202 (PTC) as well as TF501 (Pt1000)
sensors can be used, but note that this results in
differenttemperatureranges.Ifnotrequired,sen-
sor 2 (Evap. Limit Sensor) can be disabled.
Temperature Control
The controller compares the actual room tempe-
rature (P01) with the control setpoint (P03) and
activatesthecooling relaywhich isable toswitch
solenoid valves or compressors.
The switching hysteresis (differential, P09) is ad-
justableto preventthesystemfromshort cycling.
An idle time (P11) prevents a compressor from
switching ON again immediately.
Setpoint range
P07/P08 limits the setpoint range to prevent the
end-user from entering a critical value.
Switching mode of cooling relay
The switching behavior of the cooling relay
(= cooling mode) is defined by parameter P10.
1= refrigeration
2= heating
2. Setpoint / 'Night'-setpoint / day-night-shift
To economize energy, e.g. at night, the unit can
work with a second setpoint (P04). This setpoint
canbeactivatedby theinternaltime-switch(P05/
P06).
Temperature alarm
Analarmrelay isavailable for warningpurposes.
If the temperature measured by the control sen-
sor exceeds the range set with parameters P32/
P33 a delay timer (P31) starts. After this timer is
rundown,thealarmrelaywillbeactivated. P32is
located relative to setpoint P03, so P32 will be
shifted the same size the setpoint will be shifted.
Ifthe alarmmode P30is setto '4',the alarmrelay
can be reset while the temperature is located
within the alarm range.
If the temperature has left the range, P18 shows
the remaining time until an alarm occurs.
If the temperature comes back to the working
range, the relay will be reset automatically.
war
m
activated
de-activated
cold
setpoint
hysteresis
Alarm relay operation modes
With parameter P30 you select the alarm relay
mode:
0= Alarm relay active ON
1= Alarm relay active OFF
2/3= no function
4= Alarm relay can be reset while tempera-
ture is located within the alarm range.
Can be used to drive an external klaxon.
5= Continuous ON of alarm relay if control
setpoint 2 is activated. Alarm messages
will be forwarded by alarm-LED only.
Function to switch light by time control.
Real time clock
The TARCold StorageController containsa real
time clock which allows you to initiate four (8 with
AZV) defrost events a day.
The timer has a power backup for about 10 days
in case of power failure.
The clock time can be set with parameters P34
and P35. The defrost times are set with P24 thru
P27in10minuteincrementsina24hour(military)
format. Example: 13.20 = 01:20 p.m.
Switch times can be de-activated by setting to
'oFF'.
The second setpoint switch is made with P05/
P06.
Becausethedisplayhasonlythreedigits,thetime
value comes in the following format:
Defrost
One relay output is able to control a defrost
device.Thereis noneed for externalinterlocking
thedefrostoutputwiththecoolingoutputsincethe
temperature controller is disabled while defrost.
Defrost Initiation
# by internal timer, four events available
(P24 till P27)
#manually (P37).
ForinformationthereisparameterP15sho-
wing the remaining time of the existing
defrost event until termination by time.
Defrost Modes
With P23 a defrost mode can be selected.
1 = Heater or Airflow Defrost
StartingofdefrosteventswitchesON defrost
relay (i.e heater ON) and switches OFF
the cooling.
2 = Hot Gas Defrost
StartingofdefrosteventswitchesON defrost
relay (i.e. bypass-valve open) and switches
ON cooling relay (i.e. solenoid valve open).
3 = Heater or Free Airflow Defrost + (AZV)
Relay characteristic like = 1.
Addtional generated defrost events.
4 = Hot Gas Defrost + (AZV)
Relay characteristic like = 2.
Addtional generated defrost events.
Manual Defrost
#Parameter P37 allows starting a defrost
cycle with the "!" key, unless the sensor is
setpoint
cold
hysteresis
warm
de-activ.
activated
already above termination temp. or
#While the actual temperature can be read on
display, a defrost event can be initiated by
holding the "!" key for more than 2 sec.
Defrost Termination
#Thermal termination.
Defrosting will be terminated whenever the
evaporatorsensortemperature(P02)exceeds
thetemperaturelimitsetwithparameterP22.
#Termination by (safety) time.
The time set with parameter P28 is the
maximumtimeadefrostcyclecanlastbefore
it is terminated automatically.
#Manual termination.
With parameter P37 you can terminate a
defrost cycle by pressing """ key.
or
While the actual temperature (P01) can be
read on the display, a defrost event can be
terminated by holding """ key for more than
2 seconds.
#If the defrost limit sensor is interrupted, the
defrost event will be stopped immediately.
After the defrost event is terminated, the begin of
the cooling function is delayed by (P29). This
preventsfreezingwaterdropsontheevaporators
surface. P16 showstheremaining timeuntil coo-
ling starts again.
Evaporator Fan Control
Three different modes of fan operation can be
selected with parameter P13.
Fan Modes
1 = Fan runs if compressor output is on.
AfterdefrostingthefanoutputisOFFuntilthe
Fan Delay Time (P14) is run down.
2 = Fan runs continously, except during defrost
and Fan Delay Time (P14) after defrost.
Thermostatic fan delay: The fan stops if the
temperature measured with the evaporator
sensor exceeds P12. If this function is
not desired, P12 can be set to its upper
border to make it inefficient.
3 = Fan runs if the compressor output is on, and
during defrost.
The temporal fan delay must be set to "0".
The end of a defrost cycle
A temporal fan-ON delay is active after a defrost
event (P14).
Athermostaticdelayisalwaysactive,thatmeans
the fan starts only if the temperature measured
withtheevaporator(limit-) sensoris3Kbelowthe
fan operation threshold (P12).
Ifthis functionisnotdesired,P12canbe settoits
upper border to make it inefficient.
While drain time (P29) the fan remains stopped.
(P17) informs about the remaining time until the
fan starts again.
Practical conditions
The fan is always run from the N/O contact
of the fan relay.
If you want to realize a thermostatic delay, select
fan mode 2and adjust setpoint P12.
Ifyouwanttorealizeathermostaticdelayandfree
airdefrost,pleaserealizeaparallel connectionof
fan relay and defrost relay.
Functional Description
3rd Position=
minutes x 10
1st. and 2nd
Position = hours

page 4 Technical Manual TAR Cold Storage Controller TAR 1380
Installation / Run-Up
Sensor locations
Control Sensor: In the airflow, at the suction side of the evaporator.
Limit Sensor: Inthelamellacoreorthecontactpipeoftheevaporator,
at the place ice remains the longest time.
Applications with Airflow-Defrost
If this defrost method is used, there is no need for a defrost
sensor in the evaporator, so the sensor can be disabled. If
the correction parameter P20 is set to -10,1, the display
shows "oFF" and the sensor is disabled. Correcting the
parameter upward enables the sensor again.
After power-up, teh display shows the temperature of the control
sensor.Afterenteringtheaccesscode(seechapter"unlockkeys")you
have to set the basic configuration of the controller to suit your
application:
#kind of temperature sensor and display value (°C/°F)
(P21, Please note: special access code is '70').
#switching mode of cooling relay (parameter P10)
#defrost method (P23)
#evaporator fan mode (P13)
#alarm mode (P30)
#clock time (P34-P35)
#sensor correction if necessary by P19/P20.
The basic setup is now complete and you can edit the missing
setpoints, delay times etc.
See troubleshooting help on next page
Application Example
Airflow
Control
Sensor
Evaporator-
(Limit-)
sensor
lamella-
core
contact pipe
CONNECTION INFORMATION & SAFETY INSTRUCTIONS
Please read before Start-up
The guarantee will lapse in case of damage caused by failure to
comply with these operating instructions! We shall not be liable for
anyconsequentloss!Wedonotacceptliabilityforpersonalinjuryor
damage to property caused by inadequate handling or non-
observance of the safety instructions! The guarantee will lapse in
such cases.
If you notice any damage, the product may not be connected to
mains voltage! Danger of Life! A riskless operation is impossible if:
• The device has visible damages
• The device doesn't work
• After a long-time storage under unfavorable conditions
• After inadequate shipping conditions
The product may only be used for the described
application.
• Electrical installation and putting into service must be
done from authorized personnel.
• Please note the local safety instructions !
• Before installation: Check the limits of the controller and
your application. Before starting up we recommend you to
read the manual for use, since only by doing so you can
avoid damage or malfunction and you will benefit all the
advantages offered by this product.
•During installation and wiring never work when the
electricity is not cut-off !
•Never operate unit without housing.
• Mounting the controller close to power relays is
unfavourable in case of the electro-magnetic interference.
• Before applying voltage to the controller:
Make sure that all wiring has been made in accordance
with the wiring diagram in this manual.
• Respect the environmental limits for temperature and
humidity. Outside these limits malfunctions may occur.
• Observe the maximum admitted current rate for the
relays (see technical data). Compare with the peak start-
up current of the controlled devices (fan, compressor,etc.)
• Use shielded cable for sensor elongation only. Don’t install
theminparallelwithhigh-currentcablestopreventinductive
interference. A wire gauge of min. 0,5mm² is sufficient.
• Connect shielding to PE at the end near the controller
• All used temperature sensors must be identical. Never
use TF 201 and TF 501 mixed. This will not work.
• TF-type sensors are not designed for being immersed in
water for a long period of time (not pressure-proof). In such
a case, always use dip-fittings.
F2
123
AC/DC
5467 1089 11
12 V
F1
control sensor
cold storage
12 evaporator (limit-)
sensor
Typical parameter values for a cold
storage with electric defrost
P03 -20
P07 -15
P08 -25
P09 2
P10 1
P11 2
P12 -2
P13 1
P14 3
P22 14
P23 1
P24 060
P25 180
P28 30
P29 2
P30 1
P31 30
P32 7
P33 -35

Technical Manual TAR Cold Storage Controller TAR 1380 page 5
Sensor 1 and sensor 2 are interchanged, see also above 'Temp.display'
Wrong switching mode or output contact interchanged (cool. relay). Note:
If you change the switching mode, check the correct defrost mode !
Wrong switching mode or output contact interchanged (cool. relay). Note:
If you change the switching mode, check the correct defrost mode !
Check, if a defrost event or the drain time is running.
Check, if 'fan operation threshold' should work and the evaporator tempe-
rature is below the setpoint. Check if the fan delay is running
In this mode the fan delay must be set to '0'. If the evaporator sensor
reaches the fan stop/go setpoint, the fan will be switched OFF during the
defrost event. (appr. short defrost and fan relay with external wiring).
Adjust "fan operation threshold" to the highest limit
.
Set fan mode to '2', adjust "fan operation threshold"
Checkevaporator sensorposition. Checkdefrostmethod,-times,-safety time
and -termination temperature. Check if fan delay time is too long. Check if fan
runs correctly in cooling phases
Defrost mode is set to 'hot gas'. Please set correctly.
Note:Ifyouchangetheswitchingmode,checkorselectthecorrectdefrost
mode !
Check wiring and alarm mode. Can be set to active or passive.
(active: relay ON; passive: relay OFF).
Problem
Temperature display:
Actual display flashes with "-110" appr. "-166"
Actual display flashes with "-55" appr. "-67"
Actual display flashes with "120" appr. "248"
Actual display flashes with "105" appr. "221"
Temp. display does not match with actual temperature.
Programming:
Setpoint cannot be adjusted
Other values cannot be programmed
Display is running. All 3 positions change from 111 thru 999
You want to set all parameters to default
Possible reason
Sensor type TF 501 with "°C" appr. "°F" selected,
Short circuit in wiring or sensor itself
Sensor type TF 201 with "°C" appr. "°F" selected,
Short circuit in wiring or sensor itself
Sensor type TF 501 with "°C" appr. "°F" selected,
Wiring or sensor itself broken
Sensor type TF 501 with "°C" appr. "°F" selected,
Wiring or sensor itself broken
Check if reference thermometer is placed at the same position as the
sensor head. Then correct sensors.
High and low limit of the setpoint range are identical
Enter Access Code.
Unitworksinselftestmode.SwitchpowerOFF,switchpowerOnagainafter15
seconds. Please check sensor corrections now.
Switch power OFF and wait 15 seconds. Hold P-key, switch power ON,
unhandP-key.(Thedisplayshowsfirstthesoftware-versionandthen'deF'.
Now all parameter values are lost and are set to default.
Temperature Control:
Roomtemperatureisshowntoocold. CoolingisOFFalthoughtheroomis
too hot or: Cooling switches OFF too early.
Cooling is always running, although the room is cold enough and the
indicator LED 1/Cooling is not ON.
Temperaturetoohigh,indicatorLED'1/Cooling'isON,butcoolingdoesnot
switch ON.
Temperature too high, but cooling does not switch ON.
Cooling works, but fan is OFF.
You have selected fan mode 3, but the fan does not work during a defrost
event.
You have selected fan mode 2, but fan switches ON and OFF during the
cooling phases.
Youwanttousea thermostaticfandelay,butthefanswitchesalwaysOFF
if cooling switches OFF.
Defrost:
Does not work.
During a defrost event cooling starts.
Alarm:
Constant alarm without a real failure.
1. Which controller do you have ?
Hold key 'P' for more than 2 seconds, display shows the type of the
controller unit (138).
2. Do you hold the correct manual ?
3. With parameters P01 and P02 such as P15 till P18 (actual
temperatures and running delays) you get a first survey about the
unit's states.
Failure Handling
If the display flashes
with 'minus'-LED:
= sensor short circuit.
without 'minus'-LED:
= sensor interrupted
Another possibility is that the sensor is the wrong type or out of its
specifiedrange.The alarmrelaywill beactivatedafter1minute,like
preset with P30.
Control sensor disturbance
If the control sensor fails, all control
functions will be disabled by
de-activating the relay outputs.
Display shows "oFF" if you select parameters P02 or P20 and the
Limit Sensor is disabled.
Troubleshooting

page 6 Technical Manual TAR Cold Storage Controller TAR 1380
EG-Statement of Conformity
set up 1.8.2006/tkd/jr checked: 1.8.2006/ek/al approved: 1.8.2006/mv/mh
*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 test results which
are located on site at the manufacturer.
We state the following: When operated in accordance with the technical manual, the criteria have been met that are outlined in the guidelines of
the council for alignment of statutory orders of the member states on electro-magnetic consistency ( 89/336/EWG ). This declaration is valid for
thoseproductscoveredbythetechnicalmanualwhichitselfispartofthedeclaration.Followingstandardswereconsultedfortheconfirmitytesting
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, part 1 and 2; EN 50082, part 1 and 2
This statement is made from the manufacturer / importer by:
ELREHA Elektronische Regelungen GmbH Klaus Birkner, Developement and
68766 Hockenheim and leader of the EMC-Laboratory
(Name / Anschrift / name / adress)
Hockenheim 23.3.2000 .............................................
Ort/city Datum/date Unterschrift/sign
Dimensions / Wiring
Front frame
can be removed
Snap in fixing frame
from rear side.
1/ 2/ 3/ 4/
35(1.38)
76
(
3.0
)
TAR
P
ELREHA
75
(
2.95
)
Rückansicht mit Befestigungsrahmen
rear view with mounting frame
37(1.46)
28(1.1)
10 9 8 6 7 3 5 4 1 2
panel
supplied
gasket
70 (2.76)
cut-out
28 (1.1)
mounting
70(2.76)
51011
F1
12
F2
679
8
AC/DC
12V
ColdStorageController
ELREHA
Kühlstellenregler
56 (2.2)
4
123
3 (.12)
Thismanual, whichis partofthe product,has beensetupwithcare andour bestknowledge,but mistakesare stillpossible.Ifyouhaveanyproblems,
difficulties or questions please don't hesitate asking our technical support.
Technical details can be changed without notice, especially the software. Please note that the described functions are only valid for units containing
the software with the version-number shown on page 1 of this manual. Units with an other version number may work a little bit different.