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Functional Description

Display & Sensors

All temperature values can be displayed in °C or °F

with a resolution of 0,1K (0,2°F), selectable by

P21

TF201, TF 202 (PTC) as well as TF501 (Pt1000)

sensors can be used, but note that this results in

different temperature ranges. Sensor 2 (Evap. Limit

Sensor) can be disabled.

Temperature Control

The controller compares the actual room tempe-

rature

(P01)

with the control setpoint

(P03)

and

activates the cooling relay which is able to switch

solenoid valves or compressors. The switching

hysteresis (

P09

) prevents the system from short

cycling. An idle time (

P11

) prevents a compressor

from switching ON again immediately.
Setpoint range

With

P07/P08

you can limit the setpoint range to

prevent the end-user from entering critical values.

Switching mode of cooling relay K1

The switching behavior of the cooling relay

(= cooling mode) is defined by parameter

P10

2. Setpoint / day-night-shift

(1380-2 only)

To economize energy, e.g. at night, the unit can work

with a second setpoint (

P04

), which can be activated

by the internal time-switch (

P05/P06

Emergency Mode of Temperature Control

If the control sensor fails, the unit starts an emer-

gency mode.

The refrigeration relay switches on in

a percentage rate of a total period of 30 minutes,

preset by

P39

E.g.: selecting 40% means 12 minutes

on, 18 minutes off.

ParNo. Code

Description

Range

Default

P01

..................x .. x ...x ..x .. Actual temperature control sensor (°C or °F) ......

display only

P02

..................x .. x ...x ..x .. Actual temp. evaporator sensor (°C or °F) ............

display only

P03

..... -- .........x .. x ...x ..x .. Setpoint .................................................................. Low limit P08...high limit P07 .................................................. 0 °C

P04

.... 88 ........... x ........x .. 2nd Setpoint (Night-Setpoint) ............................... ± 100 °C (-148...212 °F) ......................................................... 0

P05

.... 88 ........... x ........x .. Start-up of night-setpoint (in 10 min. steps) ......... 0...235, oFF ............................................................................. oFF

P06

..... 88 ........... x ........x .. Stop of night-setpoint (in 10 minute steps) .......... 0...235, oFF ............................................................................. oFF

P07

..... 88 ........x .. x ...x ..x .. Highest adjustable setpoint .................................. ± 100 °C (-148...212 °F) up to P08 ......................................... +50 °C

P08

..... 88 ........x .. x ...x ..x .. Lowest adjustable setpoint .................................... -100°C / -148°F up to P07 ....................................................... -50°C

P09

..... 88 ........x .. x ...x ..x .. Setpoint hysteresis................................................. 0,0...20,0 K .............................................................................. 2 K

P10

..... 88 ........x .. x ...x ..x .. Switching mode cooling relay ................................ 1= cooling, 2= heating ............................................................ 1

P11

..... 88 ........x .. x ...x ..x .. Cooling relay idle time ........................................... 0...59 minutes .......................................................................... 2 minutes

P12

..... 88 ........x .. x ...x ..x .. Fan operation threshold ......................................... -100°C... +100°C (hyst. 3K fixed) ............................................ 50°C

P13

..... 88 ........x .. x ...x ..x .. Fan operating mode .............................................. 1=, 2=, 3=, see text .................................................................. 1

P14

..... 88 ........x .. x ...x ..x .. Fan delay after defrost ........................................... 0...30 minutes .......................................................................... 3 minutes

P15

..................x .. x ...x ..x .. Remaining minutes till defrost ends ......................

display only

P16

..................x .. x ...x ..x .. Remaining minutes to activate cooling .................

display only

P17

..................x .. x ...x ..x .. Remaining minutes to start fan relay.....................

display only

P18

..................x .. x ...x ..x .. Remaining minutes up to an alarm .......................

display only

P19

..... 88 ........x .. x ...x ..x .. Calibration control sensor ...................................... +/-10,0 K/F ............................................................................... 0 K

P20

..... 88 ........x .. x ...x ..x .. Calibration evap. sensor, resp. sensor OFF ...........+/-10,0 K/F, oFF ....................................................................... 0 K

P21

.....

.......x .. x ...x ..x .. 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 ........x .. x ...x ..x .. Defrost termination temperature in °C or °F ......... 0,0...30,0°C / 118,0°F .............................................................. 10°C

P23

..... 88 ............ x ........x .. Defrost type (independent from P10) .................... 1= electric, 2= hot gas, ............................................................ 1

3= eAZV, 4= hot gas+AZV (AZV with 1380-2 only)

P23

..... 88 ........x ........x ....... Defrost type (independent from P10) .................... 1= heater by cyclic timer, 2=hot gas by cyclic timer, ............... 1

3= heater by machine runtime, 4= hot gas by mach.runt.

P24

..... 88 ........x ........x ....... Defrost cycle .......................................................... 1...99 hours .............................................................................. 4 hours

P24

..... 88 ............ x ........x .. Defrost event # 1, 000...235, oFF ......................... (1.+.2 position = hours, ........................................................... oFF

P25

..... 88 ............ x ........x .. Defrost event # 2, 000...235, oFF ......................... 3.position = minutes x 10) ....................................................... oFF

P26

..... 88 ............ x ........x .. Defrost event # 3, 000...235, oFF ......................... " ................................................................................................ oFF

P27

..... 88 ............ x ........x .. Defrost event # 4, 000...235, oFF ......................... " ................................................................................................ oFF

P28

..... 88 ........x .. x ...x ..x .. Defrost safety operation time ................................ 0...120 minutes ........................................................................ 30 min.

P29

..... 88 ........x .. x ...x ..x .. Drain time, refrigeration delay after defrost ........... 0...99 minutes .......................................................................... 0 min.

P30

..... 88 ........x .. x ...x ..x .. Alarm Mode, Fan Relay Configuration .................. 0= Alarm relay active ON (N / O)............................................. 1

x .. x ...x ..x ................................................................................... 1= Alarm relay active OFF (N / C)

.........x ..x ................................................................................... 2= like "0", but internal beeper off

.........x ..x ................................................................................... 3= like "1", but internal beeper off

x .. x ...x ..x ................................................................................... 4= Alarm relay resettable within alarm range (see text)

... x .............................................................................................. 5= Rel.4 switches with setpoint 2, alarm by LED only

.........x ..x ................................................................................... 5= Alarm relay configured as fan relay ................................... 5

P31

..... 88 ........x .. x ...x ..x .. Alarm delay ............................................................ 1...99 minutes (if sensor fails < 1 flashing displ.) ......... 5 minutes

P32

..... 88 ........x .. x ...x ..x .. Alarm high limit temperature (relative to P03) ...... 0...100 K (0...100°F) ............................................................... 100K

P33

..... 88 ........x .. x ...x ..x .. Alarm low limit (absolute value) ............................. ± 100 °C (-148...212°F) .......................................................... -100°C

P34

..... -- ............. x ........x .. Clock: hours

P35

..... -- ............. x ........x .. Clock: minutes

P36

..... -- ............. x ........x .. Clock: seconds

P37

..... -- ............. x ........x .. Manual defrost ....................................................... "



"= Start defrost, "



"= Terminate

P38

..... 88 ........x .. x ...x ..x .. "Display Hold" (DH) while defrost event ................ 0 = OFF, 1 = ON ...................................................................... 0

P39

..... 88 ........x .. x ...x ..x .. ON-time of the control relay while sensor error

(Emergency Mode, based on 30 min. interval) ..... 0...100% ................................................................................... 50

P40

..................x .. x ...x ..x .. Current error + error listing .................................... Multiple errors present: Use "





" to read

P41

..... no ........x .. x ...x ..x .. Access Code .......................................................... 0...99......................................................................................... 0

Please note the different code for

changing sensor type.

Default values are factory set.

1= cooling

2= heating

warm

activated

de-activated

cold

tpo

int

hys

ter

tpo

int

cold

hys

ter

esi

warm

de-activ.

activated

O N

30 minutes

Emergency Mode

Cooling OFF

Cooling ON

O F F

Summary of Contents for TAR 1370-2

Page 1: ...c others TAR 8A res 3A cosphi 0 4 250V AC others TARN 5A res 250V AC The max current over terminal 7 TARN Terminal 4 may not increase 12 A Ambient Temperature TAR UL 10 65 C 14 149 F Ambient Temperatu...

Page 2: ...ay only P16 x x x x Remaining minutes to activate cooling display only P17 x x x x Remaining minutes to start fan relay display only P18 x x x x Remaining minutes up to an alarm display only P19 88 x...

Page 3: ...eread adefrosteventcanbeterminated by holding key for more than 2 seconds If the defrost limit sensor is interrupted the defrost event will be stopped immedi ately After the defrost event is terminate...

Page 4: ...st 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 se...

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ELREHA TAR 1370-2, Manual

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