Evco EVK614N9 User Manual download pdf

Evco S.p.A. • Code 104K614E00 • page 1/7

EVK614 Digital controller for retarder-prover cabinets and rooms, with RTC function version 1.00

E ENGLISH

1 IMPORTANT

1.1 Important

Read these instructions carefully before installation and commission-

ing and follow the recommendations regarding installation and for

electric connection. Keep these instructions with the instrument for

future consultation.

The instrument must be disposed of in compliance with

the local Standards regarding the collection of electrical

and electronic appliances.

2 DIMENSIONS AND INSTALLATION

2.1 Dimensions

The dimensions are expressed in mm (in).

DIMENS. MINIMUM TYPICAL MAXIMUM

A 71.0 (2.795) 71.0 (2.795) 71.8 (2.826)

B 29.0 (1.141) 29.0 (1.141) 29.8 (1.173)

2.2 Installation

Panel with click brackets supplied.

2.3 Installation recommendations

• the thickness of the panel must not exceed 8.0 mm (0.314 in)

• make sure that the work conditions (temperature of use, humidity,

etc.) lie within the limits indicated in the technical data

• do not install the instrument in vicinity of heat sources (resistances,

hot air pipes, etc.), appliances with strong magnets (large diffusers,

etc.), places subject to direct sunlight, rain, humidity, excessive dust,

mechanical vibrations or shocks

• in compliance with Safety Standards, the protection against any

contact with electric parts must be assured via correct installation of

the instrument; all parts that ensure protection must be fixed in a way

that they cannot be removed without using tools.

3 ELECTRIC CONNECTION

3.1 Preliminary considerations

With reference to the wiring diagram:

• port 1 is the serial port for communication with the supervision

system (through a serial interface, via TTL, with MODBUS communi-

cation protocol), with graphic diagram (through a serial interface)

or with the programming key;

the port must be used just for one

purpose

• port 2 (on request) is the port for communication with the remote

indicator. The latter shows the temperature of the room.

3.2 Electric connection

3.3 Recommendations for the electric connection

• do not operate on terminal boards using electric or pneumatic screw-

ing devices

• if the instrument has been taken from a cold to a hot place, the

humidity could condense inside; wait about 1 hour before apply-

ing power

• make sure that the power supply voltage, the frequency and the

operational electric power of the instrument correspond with those

of the local power supply

• disconnect the power supply before proceeding with any type of

maintenance

• do not use the instrument as a safety device

• for repairs and information regarding the instrument, contact the

Evco sales network.

4 FUNCTIONING

4.1 Preliminary considerations

The following functioning cycles exist:

• automatic cycle

• heating manual cycle

• cooling manual cycle.

The automatic cycle is made up of the following phases:

- a retarding provering phase

- a storing phase

- an awakening phase

- a provering phase

- a slowing phase

On conclusion of one phase the instrument passes automatically to

the next one.

5 AUTOMATIC CYCLE

5.1 Start/stop of the automatic cycle

To start the cycle:

• make sure that the instrument is in stand-by and that there is no

procedure in progress

• press

: the display will show the first label available

• press

or within 15 s to select “Auto”

• press

within 15 s: the display will show the following 3 times in

succession:

- the conclusion time of the provering phase (e.g. “02:00”)

-“dd” followed by the two numbers of the day of conclusion of the

provering phase (e.g. “dd26”)

-“MM” followed by the two numbers of the month of conclusion of

the provering phase (e.g. “MM03”)

• press

within 9 s: the display will show “Go”

• press

within 15 s: the LED will switch on and the retarding-

provering phase will be started.

If the automatic cycles are not enabled (parameter P7 = 0), the “Auto”

label will not be displayed.

The end time of the provering phase is displayed in the 24 hour format

(hours:minutes). The time proposed is the same as the last automatic

cycle started but relative to the next day.

In the example, the provering phase will be concluded at 02:00 on

26 March. The display will show all information for 1 s.

If parameter P9 is set at 0, the display will only show the conclusion

time of the provering phase.

To stop the cycle:

• press

for 4 s.

5.2 Modifying the end time and date of the provering

phase

• make sure that the day and real time are set correctly, that the instru-

ment is in stand-by and that no procedure is in progress.

• press

: the display will show the first label available

• press

or within 15 s to select “Auto”

• press

within 15 s: the display will show the end time and date

of the provering phase in succession

• press

within 9 s: the display will show “hh” followed by the

two numbers regarding the hour

• press

or within 15 s; parameter P8 is also seen

• press

within 15 s: the display will show “nn” followed by the

two numbers regarding the minutes

• press

or within 15 s; parameter P8 is also seen

• press

within 15 s: the display will show “dd” followed by the

two numbers regarding the day

• press

or within 15 s; parameter P8 is also seen

- if the two numbers of the day exceed the real ones, the end date of

the provering phase will refer to the real month (e.g., if it is 26 March

and the two numbers of the day are set at 27, the end date of the

provering phase will be 27 March)

- if the two numbers of the day are lower than the real ones, the end

date of the provering phase will refer to the following month (e.g.,

if it is 26 March and the two numbers of the day are set at 25, the end

date of the provering phase will be 25 April)

• press

within 15 s: the display will show the end time and date

of the provering phase in succession again.

To go back to previous levels:

• press

during modification of the values.

To exit the procedure:

• do not operate for 15 s (any modifications will be saved).

5.3.1 Modifying the settings of the retarding-provering

phase

To set the duration of the retarding-provering phase:

• make sure that the instrument is in stand-by and that there is no

procedure in progress

• press

: the display will show the first label available

• press

or within 15 s to select “Auto”

• press

within 15 s: the display will show the end time and date

of the provering phase in succession

• press

or within 9 s to select “PHA1” (it is the label of the

retarding-provering phase): the LED

will switch on

• press

within 15 s: the display will show “hh” followed by the

two numbers regarding the hours

• press

or within 15 s; parameter P8 is also seen

• press

within 15 s: the display will show “nn” followed by the

two numbers regarding the minutes

• press

or within 15 s; parameter P8 is also seen.

It is also possible to set the duration of the retarding-provering phase

via the dur0 parameter.

To set the work set-point during the retarding-provering phase:

• press

during the modification of the duration of the retarding-

provering phase (i.e. during modification of the minutes):

the display will show “SEt” for 1 s after which the value is

shown

• press

or within 15 s; parameters P8, rC1and rC2 are also

seen.

It is also possible to set the retarding-provering phase work set-point

via the SEt0 parameter.

To set the percentage of relative humidity during the retarding-

provering phase (only if parameter rU4 is set at 1):

• press

during the modification of the work set-point during the

retarding-provering phase: the display will show “Ur” for

1 s after which the value is shown

• press

or within 15 s; parameters P8, rU3, rU5 and rU6

are also seen.

• press

within 15 s: the display will show “PHA2” (it is the label

of the storing phase), the LED

will switch off and the

LED

will switch on.

It is also possible to set the percentage of relative humidity during the

retarding-provering phase via the Ur0 parameter.

To go back to previous levels:

• press

during modification of the values.

To exit the procedure:

• do not operate for 15 s (any modifications will be saved).

5.3.2 The retarding provering phase

During the retarding provering phase:

• the activity of the compressor depends mainly on parameters SEt0,

rC0 and rC4

• the resistances remain off

• the evaporator fan activity depends mainly on parameter F0

• the activity of the humidifier mainly depends on parameters Ur0,

rU2 and rU3 (the rU3 parameter establishes the duration of humidi-

fier switch-on, in the course of time rU2, such to cause 100% relative

humidity). If the temperature of the room falls below that established

with parameter rU1, humidification will not be available.

• defrosting can be activated

• the LED

is on.

The retarding-provering phase has duration of the time established

via parameter dur0. When this time has expired the instrument passes

automatically to the storing phase.

5.4.1 Modifying the settings of the storing phase

To set the work set-point during the storing phase:

• make sure that the instrument is in stand-by and that there is no

procedure in progress

• press

: the display will show the first label available

• press

o within 15 s to select “Auto”

• press

within 15 s: the display will show the end time and date

of the provering phase in succession

1 2 3 4 5 6 7

PT • 31/09 5

Summary of Contents

Page 1

Evco S.p.A. • Code 104K614E00 • page 1/7EVK614 Digital controller for retarder-prover cabinets and rooms, with RTC function version 1.00E ENGLISH1 IMP

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Evco S.p.A. • Code 104K614E00 • page 2/7• press or within 9 s to select “PHA2” (it is the label of thestoring phase): the LED will switch on.Alternat

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Evco S.p.A. • Code 104K614E00 • page 3/75.7.2 The slowing phaseDuring the slowing phase:• compressor activity mainly depends on the SEt4, rC0 and rC5

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Evco S.p.A. • Code 104K614E00 • page 4/78.6 Displaying the real time• make sure that no procedure is in progress• pressfor 1 s: the display will show

Page 5 - PT • 31/09

Evco S.p.A. • Code 104K614E00 • page 5/7PT • 31/0913 TECHNICAL DATA13.1 Technical dataContainer: grey self-extinguishing.Frontal protection rating: IP

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Evco S.p.A. • Code 104K614E00 • page 6/714 CONFIGURATION PARAMETERS14.1 Configuration parametersPARAM. MIN. MAX. U. M. DEF.SEt0 rC1 rC2 °C/°F (1) -2.0

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