KONVEKTA FR4 Leitfaden

Konvekta AG

Konvekta AGKonvekta AG

Konvekta AG

Am Nordbahnhof 5

34613 Schwalmstadt

Germany

 +49 0 ) 66 91 / 76 – 0

 +49 0 ) 66 91 / 76 - 200

 [email protected]

www.konvekta.com

Instructions for install

Instructions for installInstructions for install

Instructions for installa

ation and

tion and tion and

tion and

sese

ser

rvice

vicevice

vice

for control unit

for control unitfor control unit

for control unit

FR4

FR4FR4

FR4

12 12

12 -

- 24 Volt DC

24 Volt DC 24 Volt DC

24 Volt DC

ID#: 110013962AA

ID#: 110013962AAID#: 110013962AA

ID#: 110013962AA-

-a02

a02a02

a02

Valid from 08

Valid from 08Valid from 08

Valid from 08/200

/200/200

/2008

110013961AA

date of change: 18.08.2008

page: 2/19

Contents

ContentsContents

Contents

page

Technical data

Technical dataTechnical data

Technical data of control unit

of control unit of control unit

of control unit ................................

................................................................

.......................................................

..............................................

....................... 3

General description of the control unit

General description of the control unitGeneral description of the control unit

General description of the control unit................................

................................................................

.......................................

..............

....... 4

2.1

LED-display ...............................................................................................................................................................4

2.2

Programming Menu.................................................................................................................................................4

2.3

Connecting and Safety instructions.....................................................................................................................5

2.4

Functions of buttons...............................................................................................................................................6

2.5

Factory setting / delivery state FR4.....................................................................................................................6

Switching

SwitchingSwitching

Switching-

-on the unit

on the uniton the unit

on the unit ................................

................................................................

......................................

............

...... 7

3.1

Switching-on the refrigeration unit by button [U] of FR4.............................................................................7

3.2

Indication and change of setpoint........................................................................................................................7

3.3

Sampling of operating hours .................................................................................................................................8

3.4

Sampling of operating hours since last service ................................................................................................8

3.5

Sampling of the temperature values of room sensor and evaporator sensor..........................................8

Faults

FaultsFaults

Faults

–

––

–

indications and signals

indications and signalsindications and signals

indications and signals ................................

................................................................

......................................................

............................................

...................... 8

Adjustment of

Adjustment of Adjustment of

Adjustment of P

Parameters in the

arameters in the arameters in the

arameters in the m

men

enen

enu

u................................

................................................................

.......................................

..............

....... 9

5.1

Example for change of a parameter, here parameter defrost interval “di nt”..........................................9

5.2

Conversion to cooling with recirculated air defrosting / or replace a FR1, FR2 or FR3.......................9

5.3

Conversion to cooling – heating with hotgas – defrosting with hotgas.................................................. 10

Control of defrosting

Control of defrostingControl of defrosting

Control of defrosting................................

................................................................

....................................

........

.... 10

1010

Configuration of the parameters with “FR 4

Configuration of the parameters with “FR 4 Configuration of the parameters with “FR 4

Configuration of the parameters with “FR 4 c

copy

opyopy

opy-

-k

key”

ey”ey”

ey” ................................

................................................................

.........................................

..................

......... 11

1111

Logi

LogiLogi

Logic

c >>

>> >>

>> Explanations for the functions of the control conditions

Explanations for the functions of the control conditionsExplanations for the functions of the control conditions

Explanations for the functions of the control conditions................................

................................................................

.......................................................

..............................................

....................... 12

1212

8.1

Cooling and defrosting with hot gas >> delivery state FR4 ............................................................... 12

8.2

Cooling and defrosting with recirculated air >> see changes in parameters point 5.2....................... 12

8.3

Neutral zone cooling + heating with hot gas) and defrosting with hot gas >> see changes in

parameters point 5.3. .......................................................................................................................................... 12

Connection diag

Connection diagConnection diag

Connection diagram

ramram

ram

and

nd nd

nd p

parameter

arameterarameter

arameter chart

chart chart

chart ................................

................................................................

................................ 13

1313

9.1

Connection diagram ............................................................................................................................................ 13

9.2

Parameter chart.................................................................................................................................................... 13

110013961AA

date of change: 18.08.2008

page: 3/19

1Technical data

Technical dataTechnical data

Technical data of control unit

of control unit of control unit

of control unit

Type / operating voltage

Type / operating voltageType / operating voltage

Type / operating voltage:

KONVEKTA

KONVEKTA KONVEKTA

KONVEKTA part no.

part no.part no.

part no.:

FR4 / 12 – 24 V H11-001-396

Housing

HousingHousing

Housing:

:.................................................................. UL 94 V0 plastic material

Dimensions

DimensionsDimensions

Dimensions:

:........................................................... frontal: 78x35 mm; depth: 64 mm

Mounting

MountingMounting

Mounting:

: ............................................................... panel mounting in a 29x71 mm panel cut-out

Frontal protection

Frontal protectionFrontal protection

Frontal protection:

:............................................... IP65 with sealing

Connections

ConnectionsConnections

Connections:

: ......................................................... Screw terminal block

≤

2,5mm

wiring

Power supply

Power supplyPower supply

Power supply:

................................

................................................................

.......................................

..............

.......

12 – 24 V AC/DC, -10%, +10%

Power consumption

Power consumptionPower consumption

Power consumption:

: ........................................... 3 VA max.

Display

DisplayDisplay

Display:

: ................................................................... 4-digit, blue LED, height 12mm

Inputs

InputsInputs

Inputs:

................................................................ 2 x PTC-sensor

Rela

RelaRela

Relay outputs

y outputsy outputs

y outputs:

compre

ompreompre

ompressor:

ssor:ssor:

ssor: ................................................. Relay NOC normally open contact) 16 A

defrost

defrostdefrost

defrost:

: ....................................................... Relay change-over contact 8 A

fans

fansfans

fans:

: .......................................................... Relay NOC normally open contact) 5 A

Data storage

ata storageata storage

ata storage.......................................................... non-volatile memory EEPROM)

Operating

Operating Operating

Operating temperatur

temperaturtemperatur

temperature

: ..................................... 0..50°C

Storage t

Storage tStorage t

Storage temperatur

emperaturemperatur

emperature

: .......................................... -10..60°C

Humidity

umidityumidity

umidity:

:................................

................................................................

.............................................................

..........................................................

............................. 10 to 95% without condensation)

Measuring range sensor

Measuring range sensorMeasuring range sensor

Measuring range sensor PTC NTC):

PTC NTC): PTC NTC):

PTC NTC): ............. -50 to 150°C -50 to 109°C)

Resolution

ResolutionResolution

Resolution:

:............................................................. 1°C or 1°F

Accuracy

AccuracyAccuracy

Accuracy:

:................................................................ ±0,5%

110013961AA

date of change: 18.08.2008

page: 4/19

2General description of the control unit

General description of the control unitGeneral description of the control unit

General description of the control unit

Model FR4

FR4FR4

FR4 is an electronical control unit 78x35mm) suitable for applications on medium or low tempera-

ture refrigeration units, which has three relay outputs to control compressor, defrost and evaporator

blower as well as two PTC-/NTC-sensor-inputs in order to measure the room temperature and evapora-

tor temperature. Defrosting can be recirculation air as well as hot-gas defrosting. The blower can be acti-

vated during defrosting upon request. The sensor is suitable for refrigeration. The control unit FR4 is suit-

able for refrigeration as well as heating applications only hot-gas heating). Supply voltage may be between

10 and 28V.

The following functions can be adjusted:

•room temperature „only refrigeration“ or „refrigeration and heating with hot gas “)

•automatic defrosting hot gas or recirculating air)

•manual defrosting hot gas or recirculating air)

⇒Faults are shown in the display via flashing indication see point 4).

This present instructions for installation and service is amended by the „operating

instructions for refrigeration units“, KONVEKTA no: BBA-FR4-2AA.

2.1 LED-display

The display shows information about the current control mode via different LED.

The functions are listed as follows:

LED

LEDLED

LED

STATUS

STATUSSTATUS

STATUS

FUN

FUNFUN

FUNCT

CTCT

CTION

IONION

ION

Comp

illuminated compressor is active

Comp

blinking minimum off-duration of compressor is active

Fan illuminated Blowers active

Def

illuminated defrosting active

Def

blinking Manual defrosting active

OK illuminated function OK, no fault active

2.2 Programming Menu

The programming menu includes all parameters of the unit

Service

Service Service

Service level

levellevel

level!).

!). !).

!). For this level you need a

password

, see example in point 5.1.

110013961AA

date of change: 18.08.2008

page: 5/19

2.3 Connecting and Safety instructions

Please read before connecting

Please read before connectingPlease read before connecting

Please read before connecting!

! !

! -

•For safety reasons the control unit FR4

FR4 FR4

FR4 shall not be used for applications different from those described

in this manual.

•Before use please check the limits of this control unit as well as its applications.

Safety instructions

Safety instructionsSafety instructions

Safety instructions

Before connecting the unit please check wether the supply voltage is correct. Please pay attention to the

prescribed ambient conditions respectively their humidity and temperature limits. Should these conditions

not be followed, malfunctions can not be excluded.

Attention

AttentionAttention

Attention:

Before switching-on the unit, please check once again correct connection.

Never run this unit without housing.

Please install the sensor where it is not accessible for the end customer

Please consider the maximum current which can be applied to each relay see technical data / point 1).

Please ensure that all sensors are installed with enough distance to under-voltage cables. By this, distorted

temperature measurements can be avoided and the unit is protected from voltage interspersion by the

sensor-inputs.

Installation

Installation Installation

Installation a

and

nd nd

nd mounting

mountingmounting

mounting

The control unit FR4

FR4FR4

FR4 shall be mounted on panel in a 71x29 mm

71x29 mm71x29 mm

71x29 mm hole and fixed by the fastening frame.

For a faultless operation the ambient temperature should be between 0 und 50 °C. Please avoid intense

vibration, aggressive gases, high fouling or humidity.

You have to care for enough air circulation at the air slots.

Ele

EleEle

Elec

ctr

trtr

trical

icalical

ical

coco

connections

nnectionsnnections

nnections

The control unit FR4

FR4FR4

FR4 is provided with screw terminals for a wire diameter of

≤

2,5mm

. Before voltage

supply is connected please make sure that the auxiliary energy complies with the instrument’s require-

ments. Please ensure that the inlet cables are installed with enough distance to under-voltage cables.

Do not exceed the maximum voltage allowed on each relay.

Sensor

SensorSensor

Sensor

connections

connectionsconnections

connections

The sensor peak should be mounted upwards in order to avoid accumulation of liquids or condense wa-

ter. We recommend to place the thermostat away from air flow in order to have a correct measurement

of the average room temperature.

These instructions contain all necessary information for installation of the control unit. In case you need

further information respectively explanation our technical after-sales service will be at your disposal

℡06691/76 –124, or  [email protected]om).

In the course of further developments we reserve the right to technical modifications without prenotice.

Guarantee and liability conditions of Konvekta AG’s general business conditions are not enlarged by the

above notes. Indications and photos should neither be copied and circulated nor used for competitor’s

purposes. All rights according to the copyright remain expressly reserved.

Manufacturer: KONVEKTA AG,

KONVEKTA AG, KONVEKTA AG,

KONVEKTA AG, P.O. Box

P.O. BoxP.O. Box

P.O. Box 2280, 34607 Schwalmstadt

2280, 34607 Schwalmstadt 2280, 34607 Schwalmstadt

2280, 34607 Schwalmstadt, Germany

, Germany, Germany

, Germany

110013961AA

date of change: 18.08.2008

page: 6/19

2.4 Functions of buttons

The control unit FR4

FR4FR4

FR4

has four buttons:

[UP] - Scrolls through the positions of

the menu

- raises the values

- switching-on of manual defrosting

[DOWN] - Scrolls through the positions of the menu

- lowers the values

- sampling of operating-hour counter

- sampling of service-hour counter

[U] - ON / OFF button

- sampling of temperatures at room sensor and evaporator sensor PR1 – PR2)

[P] - access to setpoint

- access to menus

- confirmation of commands

Setting of temperature setpoint

Setting of temperature setpointSetting of temperature setpoint

Setting of temperature setpoint:

Indication of temperature

Indication of temperature Indication of temperature

Indication of temperature setpoint

setpointsetpoint

setpoint

Press button [P]. The display shows alternately „SP 1” and the current adjusted setpoint.

Change of the setpoint

Change of the setpointChange of the setpoint

Change of the setpoint:

To change the setpoint you have to press button [UP] or [DOWN] within 15 seconds until

the desired setpoint is indicated. Confirm with [P].

Attention

ttentionttention

ttention:

: :

The new value will be automatically adopted and stored if it is not confirmed within 15 sec-

onds.

2.5 Factory setting / delivery state FR4

Delivery state/factory setting of control unit FR4 will be as follows:

Refrigeration with hot-gas defrosting! see point 7.1. on page 11)

Refer to the Konvekta set values in column „Def.” from the enclosed parameter list see point 8

page 12 to 18)!

110013961AA

date of change: 18.08.2008

page: 7/19

3Switching

SwitchingSwitching

Switching-

-on the unit

on the uniton the unit

on the unit

Analog to operating instructions no. BBA-FR4-1AA)

3.1 Switching-on the refrigeration unit by button [U] of FR4

Press button [U] for 3 seconds. The display shows “PR2” blinking; afterwards the current room tempera-

ture will be indicated.

3.2 Indication and change of setpoint

Press button [P] once, alternately blinking appear „SP1“ >> setpoint.

Now you can change the setpoint using the arrow keys -30 to +30°C)

Now press button [P] once and the new value will be stored.

Attention

ttentionttention

ttention:

: :

The new value will be automatically adopted and stored if it is not confirmed within 15 sec-

onds.

In refrigeration operation the room temperature is indicated, LED’s for compressor „Comp“ and fans

„Fan“ are illuminated.

Drive operation

Drive operationDrive operation

Drive operation

Stand

StandStand

Stand-

-by operation

by operationby operation

by operation

•start vehicle engine

see original operating instructions of the vehi-

cle)

•For units with additional stand-by operation

230V/400V) you only have to plug in the power

plug for stand-by refrigeration.

compressor ON

evaporator/condensor

blower activ

Mains operation:

Plug in power plug

110013961AA

date of change: 18.08.2008

page: 8/19

ATTENTION

ATTENTIONATTENTION

ATTENTION:

The factory setpoint is

The factory setpoint is The factory setpoint is

The factory setpoint is 1°C.

1°C.1°C.

1°C.

This setpoint has to be adapted to the storage

This setpoint has to be adapted to the storage This setpoint has to be adapted to the storage

This setpoint has to be adapted to the storage temperatur

temperaturtemperatur

temperature of the transport

e of the transport e of the transport

e of the transport

goods

goodsgoods

goods!

ATTENTION

ATTENTIONATTENTION

ATTENTION:

The factory minimal setpoint

The factory minimal setpointThe factory minimal setpoint

The factory minimal setpoint „SPLL

„SPLL „SPLL

„SPLL”

””

”

is adjusted to

is adjusted to is adjusted to

is adjusted to -

-30°C.

30°C.30°C.

30°C.

In case of use as a

In case of use as a In case of use as a

In case of use as a chill

chillchill

chilling unit the p

ing unit the ping unit the p

ing unit the parameter „SPLL

arameter „SPLLarameter „SPLL

arameter „SPLL”

””

”

has to be adjusted to

has to be adjusted to has to be adjusted to

has to be adjusted to 0!

0!0!

3.3 Sampling of operating hours

Switch-on control unit FR4 with button [U].

Press button once. Now the total operating hours of the refrigeration unit will be indicated for

approx. 5 seconds.

3.4 Sampling of operating hours since last service

Switch-on control unit FR4 with button [U].

Press button twice. Now the operating hours of the refrigeration unit

since the last service are indicated for approx. 5 seconds.

3.5 Sampling of the temperature values of room sensor and evaporator sensor

Press button [U] once; the display shows alternately blinking „PR 2” and the measured evaporator tem-

perature. By pressing button [U] once again, „PR 1” is indicated in the display alternately blinking with the

measured room temperature.

After 15 seconds the display switches back to the current room temperature.

4Faults

FaultsFaults

Faults

–

––

–

indications and signals

indications and signalsindications and signals

indications and signals

The display shows faults by blinking indication.

If there is a fault, no control is possible!

Indication

IndicationIndication

Indication

Description

DescriptionDescription

Description

Fault s

Fault sFault s

Fault source

ourceource

ource

”E1” Fault with room sensor Cable rupture or sensor short-circuit

”E2” fault with evaporator sensor Cable rupture or sensor short-circuit

110013961AA

date of change: 18.08.2008

page: 9/19

5Adjustment of

Adjustment of Adjustment of

Adjustment of P

Parameters in the

arameters in the arameters in the

arameters in the m

men

enen

enu

The single parameters are classified in groups:

a) Group

]

SP parameter concerning set point)

b) Group

]

InP parameter concerning measuring inlets)

c) Group

]

reG parameter concerning temperature control)

d) Group

]

dEF parameter concerning defrost process)

e) Group

]

FAn parameter concerning fans/blowers)

f) Group

]

PrC parameter concerning switch-on delay / evaporator protection)

You will find the explanations to the single parameters in point 8

8 from page 13

13 13

13.

Access to menu is secured by a password

Access to menu is secured by a passwordAccess to menu is secured by a password

Access to menu is secured by a password!

5.1 Example for change of a parameter, here parameter defrost interval “di nt”

For selecting the menu please press and hold button [P]. “SP 1” is blinking in the display. After 5 seconds a „0“

appears. By pressing buttons

and

the password „213

213213

213“ is set. Now press button [P] once, in order to

confirm the password.

The display now shows the term of the first group „

]

SP“. By pressing buttons

and

the other groups

can be selected, by pressing button [P] the respective group is opened.

In order to change the defrosting intervals please browse with buttons

and

, until group „

]

dEF“

appears in the display. By pressing button [P] you open this group. First the display shows parameter „dtyP“

blinking. By pressing buttons

and

you can choose paramenter „di nt“; parameter „di nt“ is now blink-

ing in the display. By pressing button [P] once, the current setting is shown, “di nt” and the adjusted value

“1,30” are blinking alternately. Now the value can be changed. The new value is stored by leaving the pa-

rameter. You can leave the parameter with button

. If you press button

longer, the menu switches

back to the groups, afterwards you can leave the menu by pressing this button longer once again.

5.2 Conversion to cooling with recirculated air defrosting / or replace a FR1, FR2 or FR3

Contrary to the factory setting „cooling with hot-gas defrosting”, the following parameters have to be

changed:

-parameter „dtyP“ in group „

]

dEF“ has to be changed from „in“ to „FdE“

-parameter „tdCO“ in group „

]

dEF“ has to be changed from „1“ to „off“

-parameter „Fd“ in group „

]

FAn“ has to be changed from „1“ to „off“

-If no evaporator sensor has been installed e.g. replace

replacereplace

replace FR1

FR1 FR1

FR1) the parameter „PR 2“ in group

„

]

InP“ has to be changed from „on“ to „off“

If you replace a FR1, FR2 or FR3 with the FR4 and the external ON-OFF-button should be used further-

more or further instruments such as temperature recorder or heating should be switched on together with

the FR4 by an external button, you have to

-change parameter „Usrb“ in group „

]

Pan“ from „4“ to „OFF“.

110013961AA

date of change: 18.08.2008

page: 10/19

5.3 Conversion to cooling – heating with hotgas – defrosting with hotgas

Contrary to the factory setting, the following parameter has to be changed:

-parameter „FunC“ in group „

]

rEG“ has to be changed from „CooL“ to „nr“.

ATTENTION:

ATTENTION:ATTENTION:

ATTENTION:

Parameter

ParameterParameter

Parameter „FunC“

„FunC“ „FunC“

„FunC“ should only be changed from

should only be changed from should only be changed from

should only be changed from „CooL“

„CooL“ „CooL“

„CooL“ to

toto

to „nr“

„nr“ „nr“

„nr“ if a fluid e

if a fluid e if a fluid e

if a fluid ex-

x-x-

trtr

tractor is i

actor is iactor is i

actor is in

nstalled in the suction pipe of the refri

stalled in the suction pipe of the refristalled in the suction pipe of the refri

stalled in the suction pipe of the refrig

geration unit

eration uniteration unit

eration unit!

Otherwise risk of damages to compressor.

Otherwise risk of damages to compressor.Otherwise risk of damages to compressor.

Otherwise risk of damages to compressor.

6Control of defrosting

Control of defrostingControl of defrosting

Control of defrosting

Factory setting of control unit FR4 is hot-gas defrosting. In case of use in refrigeration units with recircu-

lated air defrosting the following parameters have to be changed:

-parameter „dtyP“ in group „

]

dEF“ has to be changed from „in“ to „FdE“

-parameter „tdCO“ in group „

]

dEF“ has to be changed from „1“ to „off“

-parameter „Fd“ in group „

]

FAn“ has to be changed from „1“ to „off“

-If no evaporator sensor has been installed e.g. replace FR1

replace FR1replace FR1

replace FR1) the parameter „PR 2“ in group

„

]

InP“ has to be changed from „on“ to „off“



The preadjusted maximum defrosting duration is 15 minutes.

During defrosting process „dEF” is indicated and the LEDs „Def” and „Comp”

are illuminated.

After the end of defrosting there is 1 minute drip-off time. Display shows „PdEF“.

The LEDs „Comp” and „Fan” are blinking.

Recommended defrosting inte

Recommended defrosting inteRecommended defrosting inte

Recommended defrosting inter

rvals:

vals:vals:

vals:

Fresh meat and cheese: 1:00 hours

Dairy product: 2:00 hours

Deep freezing products: 3:00 hours

Pre

PrePre

Pre-

-adjustment:

adjustment:adjustment:

adjustment:

1:30

1:30 1:30

1:30 hours

hourshours

hours

Inhaltsverzeichnis

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