Evco EVK261N3 Bedienungsanleitung PDF herunterladen

Evco S.p.A. • Code 104K261E00

EVK261 Digital thermostat for normal temperature refrigerated transport, with compressor or instrument working days counter function version 1.00

GB ENGLISH

1 GETTING STARTED

1.1 Important

Read these instructions carefully before installing and using the instru-

ment and follow all additional information for installation and electrical

connection; keep these instructions close to the instrument for future

consultations.

The instrument must be disposed according to the local

legislation about the collection for electrical and electronic

equipment.

1.2 Installing the instrument

Panel mounting, with click brackets (supplied by the builder); dimen-

sions 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)

Additional information for installation:

• 59.0 (2.322) is the maximum depth with screw terminal blocks

• 83.0 (3.267) is the maximum depth with extractable terminal blocks

• the panel thickness must not be higher than 8.0 mm (0.314 in)

• working conditions (working temperature, humidity, etc.) must be be-

tween the limits indicated in the technical data

• do not install the instrument close to heating sources (heaters, hot air

ducts, etc.), devices provided with big magnetos (big speakers, etc.),

locations subject to direct sunlight, rain, humidity, dust, mechanical

vibrations or bumps

• according to the safety legislation, the protection against electrical

parts must be ensured by a correct installation of the instrument; the

parts that ensure the protection must be installed so that you can not

remove them if not by using a tool.

1.3 Wiring diagram

With reference to the wiring diagrams:

• terminals 1 and 2 are available only in the models with power supply

230 VAC and 115 VAC; terminals 8 and 9 are available only in the

models with power supply 12 VAC/DC and 12-24 VAC/DC

• the function of the second input depends on parameter P4

• port 1 (by request) is the serial port for the communication with the

supervision system (through a serial interface, via TTL, with MODBUS

communication protocol) or with the programming key; the port must

not be used at the same time for the same purposes

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

indicator; the indicator shows the quantity you have set with param-

eter P5.

Additional information for electrical connection:

• do not operate on the term. blocks with electrical or pneumatic screwers

• if the instrument has been moved from a cold location to a warm one,

the humidity could condense on the inside; wait about an hour be-

fore supplying it

• test the working power supply voltage, working electrical frequency

and working electrical power of the instrument; they must correspond

with the local power supply

• disconnect the local power supply before servicing the instrument

• do not use the instrument as safety device

• for repairs and information on the instrument please contact Evco

sales network.

2 USER INTERFACE

2.1 Preliminary information

There are the following operation status:

• status “on” (the instrument is supplied and is turned on: the regulators

can be turned on)

• status “stand-by” (the instrument is supplied but it is turned off via

software: the regulators are turned off)

• status “off” (the instrument is not supplied).

If parameter t0 has value 0, “turning on” means moving from status off

to status on; “turning off” means moving from status on to status off.

If parameter t0 has value 1, “turning on” means moving from status

stand-by to status on; “turning off” means moving from status on to

status stand-by.

After an interruption of power supply the instrument moves to the sta-

tus it was before the interruption.

2.2 Turning on/off the instrument if parameter t0 has

value 0

To turn on the instrument you have to supply it; to turn it off it is enough

to cut off the power supply.

2.3 Turning on/off the instrument if parameter t0 has

value 1

• make sure the keyboard is not locked and no procedure is running

• press 4 s.

2.4 The display

If the instrument is turned on, during the normal operation the display

will show the quantity you have set with parameter P5:

• if P5 = 0, the display will show the cabinet temperature

• if P5 = 1, the display will show the working setpoint

• if P5 = 2, the display will show the temperature read by the auxiliary

probe (only if parameter P4 has value 1 or 2).

2.5 Showing the cabinet temperature

• make sure the keyboard is not locked and no procedure is running

• press 2 s: the display will show the first available label

• press or to select “Pb1”

• press

To quit the procedure:

• press or do not operate 60 s

• press or as long as the display shows the quantity you have

set with parameter P5 or do not operate 60 s.

2.6 Showing the temperature read by the auxiliary probe

(only if parameter P4 has value 1 or 2)

• make sure the keyboard is not locked and no procedure is running

• press 2 s: the display will show the first available label

• press or to select “Pb2”

• press

To quit the procedure:

• press or do not operate 60 s

• press or as long as the display shows the quantity you have

set with parameter P5 or do not operate 60 s.

If the function of the second input is not the one of auxiliary probe

(parameter P4 = 0 or 3), the label “Pb2” will not be shown.

2.7 Activating the defrost by hand

• make sure the keyboard is not locked and no procedure is running

• press 4 s.

If the function of the second input is the one of evaporator probe (pa-

rameter P4 = 1) and to the defrost activation the evaporator tempera-

ture is above the one you have set with parameter d2, the defrost will

not be activated.

2.8 Locking/unlocking the keyboard

To lock the keyboard:

• make sure no procedure is running

• press and 2 s: the display will show “Loc” 1 s.

If the keyboard is locked, you will not be allowed to:

• turn on/off the instrument by hand

• show the temperature read by the auxiliary probe

• activate the defrost by hand

• modify the working setpoint with the procedure related in paragraph

3.1 (you also can modify the working setpoint through parameter SP)

• show the compressor working days

• erase the compressor working days

• show the instrument working days

• erase the instrument working days.

These operations provoke the visualization of the label “Loc” 1 s.

To unlock the keyboard:

• press and 2 s: the display will show “UnL” 1 s.

2.9 Silencing the buzzer

• make sure no procedure is running

• press a button (the first pressure of the button does not provoke its

usual effect).

3 SETTINGS

3.1 Setting the working setpoint

• make sure the keyboard is not locked and no procedure is running

• press LED will flash

• press or in 15 s; also look at parameters r1, r2 and r3

• press or do not operate 15 s.

You also can modify the working setpoint through parameter SP.

3.2 Setting configuration parameters

To gain access the procedure:

• make sure no procedure is running

• press and 4 s: the display will show “PA”

• press

• press or in 15 s to set “-19”

• press or do not operate 15 s

• press and 4 s: the display will show “SP”.

To select a parameter:

• press or

To modify a parameter:

• press

• press or in 15

• press or do not operate 15 s.

To quit the procedure:

• press and 4 s or do not operate 60 s.

Switch off/on the power supply of the instrument after the

modification of the parameters.

3.3 Restoring the default value of configuration param-

eters

• make sure no procedure is running

• press and 4 s: the display will show “PA”

• press

• press or in 15 s to set “743”

• press or do not operate 15 s

• press and 4 s: the display will show “dEF”

• press

• press or in 15 s to set “149”

• press or do not operate 15 s: the display will show “dEF” flash-

ing 4 s, after which the instrument will quit the procedure

• switch off/on the power supply of the instrument.

Make sure the default value of the parameters is appropri-

ate.

4 COMPRESSOR OR INSTRUMENT WORKING DAYS

COUNTING

4.1 Preliminary information

The instrument can store up to 1,999 compressor or instrument work-

ing days, after which the number 1,999 flashes.

If parameter t1 has value 0, the instrument will store the compressor

working days; if parameter t1 has value 1, the instrument will count its

working days (also when it is turned off via software).

When the number of working days gets the one you have set with

parameter t2, the display shows the label “SEr” flashing.

To freeze the signal “SEr” 1 h:

• press a button (the first pressure of the button does not provoke its

usual effect).

4.2 Showing the working days

• make sure the keyboard is not locked and no procedure is running

• press 2 s: the display will show the first available label

• press or to select “Ct”

• press the display will show in succession the following informa-

tion (for example):

INFOR. MEANING

dd the display is about to show the working days

26 the working days are 26 (to be continued ...)

hh the display is about to show the working hours

03 the working days are 26 and the hours are 3

Each information lasts 1 s.

To escape from the succession of information:

• press

To quit the procedure:

• escape from the succession of information

• press or as long as the display shows the quantity you have

set with parameter P5 or do not operate 60 s.

4.3 Erasing the working days

• make sure the keyboard is not locked and no procedure is running

• press 2 s: the display will show the first available label

• press or to select “rCt”

• press

• press or in 15 s to set “149”

• press or do not operate 15 s: the display will show “- - - -” flashing

4 s, after which the instrument will quit the procedure.

5 SIGNALS

5.1 Signals

LED MEANING

LED compressor

if it is lit, the compressor will be turned on

if it flashes:

• the modification of the working setpoint will be running

• a compressor protection will be running (parameters C0,

C1, C2 and i7)

LED defrost

if it is lit, the defrost will be running

LED alarm

if it is lit, an alarm will be running

°C LED Celsius degree

if it is lit, the unit of measure of the temperatures will be

Celsius degree (parameter P2)

°F LED Fahrenheit degree

if it is lit, the unit of measure of the temperatures will be

Fahrenheit degree (parameter P2)

CODE MEANING

SEr service of compressor or of instrument is requested (param-

eter t2); also look at chapter 4

Loc the keyboard and/or the working setpoint are locked (pa-

rameter r3); also look at paragraph 2.8

- - - - the quantity to show is not available (for example because

the probe is not enabled)

6 ALARMS

6.1 Alarms

CODE MEANING

AL Lower temperature alarm

Remedies:

• check the temperature joined to the alarm

• look at parameters A0, A1 and A2

Effects:

• no effect

AH Upper temperature alarm

Remedies:

• check the temperature joined to the alarm

• look at parameters A3, A4 and A5

Effects:

• no effect

id Door switch input alarm (only if parameter P4 has value 3

and parameter i0 has value 3)

Remedies:

• check the reasons that have provoked the activation of

the input

• look at parameters i0 and i1

Effects:

• the compressor will be turned off

iA Multipurpose input alarm (only if parameter P4 has value 3

and parameter i0 has value 0)

Remedies:

• check the reasons that have provoked the activation of

the input

• look at parameters i1 and i5

Effects:

• if parameter i5 has value 3, there will be no effect

• if parameter i5 has value 4, the compressor will be turned

off

iSd Instrument locked alarm (only if parameter P4 has value 3

and parameter i0 has value 0)

Remedies:

• check the reasons that have provoked the activation of

the multipurpose input

• switch off/on the power supply of the instrument

• look at parameters i1, i5, i7, i8 and i9

Effects:

• the regulators will be turned off

COH Overheated condenser alarm (only if parameter P4 has value

Remedies:

• check the condenser temperature

• look at parameter C6

Effects:

• no effect

CSd Compressor locked alarm (only if parameter P4 has value 2)

Remedies:

• check the condenser temperature

• cut off the power supply of the instrument and clean the

condenser

• look at parameter C7

Effects:

• the compressor will be turned off

When the cause that has provoked the alarm disappears, the instru-

ment restores the normal operation, except for the instrument locked

alarm (code “iSd”) and the compressor locked alarm (code “CSd”) that

need you switch off/on the power supply of the instrument.

7 INTERNAL DIAGNOSTICS

7.1 Internal diagnostics

CODE MEANING

Pr1 Cabinet probe error

Remedies:

• look at parameter P0

• check the integrity of the probe

• check the connection instrument-probe

• check the cabinet temperature

Effects:

• the compressor activity will depend on parameters C4 and

Pr2 Auxiliary probe error (only if parameter P4 has value 1 or 2)

Remedies:

• the same you saw in the previous case but related to the

auxiliary probe

Effects:

• if parameter P4 has value 1, the defrost will last the time

you will have set with parameter d3

• if parameter P4 has value 1 and parameter d8 has value 2,

the instrument will work as if parameter d8 had value 0

• if parameter P4 has value 2, the overheated condenser

alarm (code “COH”) and the compressor locked alarm

(code “CSd”) will never be activated

When the cause that has provoked the alarm disappears, the instru-

ment restores the normal operation.

8 TECHNICAL DATA

8.1 Technical data

Box: self-extinguishing grey.

Frontal protection: IP 65.

Connections: screw terminal blocks (power supply, inputs and out-

put), 6 poles connector (serial port; by request), 4 poles connector (to

the remote indicator; by request); extractable terminal blocks (power

supply, inputs and output) by request.

Working temperature: from 0 to 55 °C (32 to 131 °F, 10 ... 90% of

relative humidity without condensate).

Power supply: 230 VAC, 50/60 Hz, 3 VA (approximate); 115 VAC or

12-24 VAC/DC or 12 VAC/DC by request.

Alarm buzzer: by request.

Measure inputs: 1 (cabinet probe) for PTC/NTC probes.

Digital inputs: 1 (multipurpose/door switch) for NO/NC contact (free

of voltage, 5 V 1 mA) also configurable for measure input (evaporator

or condenser probe, for PTC/NTC probes).

Working range: from -50.0 to 150.0 °C (-50 to 300 °F) for PTC probe,

from -40.0 to 105.0 °C (-40 to 220 °F) for NTC probe.

Resolution: 0.1 °C/1 °C/1 °F.

Digital outputs:1 relay:

• compressor relay: 16 res. A @ 250 VAC (change-

over contact).

The maximum current allowed on the load is 10 A.

Serial port: port for the communication with the supervision system

(through a serial interface, via TTL, with MODBUS communication pro-

tocol) or with the programming key; by request.

Further communication ports: port for the communication with

the remote indicator; by request.

1 2

PT • 22/10 2

Inhaltsverzeichnis

Seite 1

Evco S.p.A. • Code 104K261E00EVK261 Digital thermostat for normal temperature refrigerated transport, with compressor or instrument working days count

Seite 2 - PT • 22/10

EVCO S.p.A. This document belongs to Evco; unless you are authorized by Evco, you can not publish it.Via Mezzaterra 6, 32036 Sedico Belluno ITALY Evco

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