Evco Ev3s204 User manual

EVCO S.p.A. | Code 1043S205E104 | Page 1 of 8 | PT 04/15 | version 1.0

EV3S204 & EV3S205

Split version controllers for refrigerated displays, refrigerated counters for ice-cream parlours/confectioners and plug-in units

EN ENGLISH

IMPORTANT

Read this document thoroughly before installation and be-

fore use of the device and follow all recommendations;

keep this document with the device for future consultation.

Only use the device in the way described in this document;

do not use the same as a safety device.

The device must be disposed of in compliance

with local Standards regarding the collection of

electric and electronic equipment.

1 DIMENSIONS AND INSTALLATION

1.1 User interface dimensions

The following drawing shows the measurements of the

device; The dimensions are expressed in mm (in).

Please see page 8 for the measurements and installation of

the control module.

3 USER INTERFACE

3.1 Preliminary notes

Operating Statuses:

- “on” state (the device is powered and is on: the regulators

can be switched on)

- “stand-by” status (the device is powered but is switched

off via software: the regulators are switched off; the

possibility to manually switch on/switch off the cell light

or auxiliary output depends on parameter u2)

- the “off” status (the device is not powered).

Hereafter, with the word “start-up” means the passage from

“stand-by” status to “on” status; the word “shutdown” means

the passage from “on” status to “stand-by” status.

When the power is switched back on, the device displays the

status that it was in at the time it was disconnected.

1.2 User interface installation

Panel installation with snap-on brackets.

The following drawing shows the device installation process.

1.3 Installation warnings

- the thickness of the panel on which the user interface is

to be installed must be between 0.8 and 2.0 mm (0.031

and 0.078 in)

- make sure that the device work conditions (tempera-

ture of use, humidity, etc.) lie within the limits indi-

cated; see chapter 13

- do not install the device near to any heat sources (heating

elements, hot air ducts etc.), equipment containing

powerful magnets (large diffusers, etc.), areas affected

by direct sunlight, rain, humidity, excessive dust,

mechanical vibrations or shocks

- any metal parts next to the control module must be

placed at a sufficient distance to avoid reducing the

safety clearances

- in compliance with Safety Standards, the device must

be installed correctly and in a way to protect against

any contact with electric parts; all parts that ensure

protection must be fixed in a way that they cannot be

removed without the use of tools.

2.1 Warnings for the electric connection

- do not use electric or pneumatic screwdrivers on the

device terminal board

- if the device has been taken from a cold to hot place,

humidity could condense inside; wait about 1 hour be-

fore powering it

- make sure that the power supply voltage, the fre-

quency and the operational electric power of the de-

vice, correspond with those of the local power supply;

see chapter 13

- disconnect the device power supply before proceeding

with any type of maintenance

- position the power cables as far away as possible from

the signal cables

- for repairs and information regarding the device, con-

tact the EVCO sales network.

3.2 Device switch-on/off in manual mode

Operating Statuses:

1. Make sure that the keyboard is not locked and that no

procedure is in progress.

2. Touch the key down for 2 s: the LED will

switch off/on.

Using the digital inputs it is also possible to remotely switch

on/off the device.

3.3 The display

If the device is switched on, during normal operation, the

display will show the cell temperature, except during

defrosting, when the device will show the temperature

established with parameter d6.

If the device is switched off, the display will be switched off.

3.4 Display of the evaporator temperature

1. Make sure that the keyboard is not locked and that no

procedure is in progress.

2. Touch the key down for 1 s: the display will

show the first label available.

3. Touch the key or the key to select

“Pb2”.

4. Touch the key .

To exit the procedure:

5. Touch the key or do not operate for

60 sec.

6.1 Touch the key or the key until the

display shows the cell temperature or do not operate

for 60 sec.

2. ELECTRIC CONNECTION

2.1 Electric connection

EVCO S.p.A. | Code 1043S205E104 | Page 2 of 8 | PT 04/15 | version 1.0

Alternatively:

6.2 Touch the key.

If the evaporator probe is absent (parameter P3 = 0), the

label “Pb2” will not be displayed.

3.5 Condenser temperature display

1. Make sure that the keyboard is not locked and that no

procedure is in progress.

2. Touch the key down for 1 s: the display will

show the first label available.

3. Touch the key or the key to select

“Pb3”.

4. Touch the key.

To exit the procedure:

5. Touch the key or do not operate for

60 sec.

6.1 Touch the key or the key until the

display shows the cell temperature or do not operate

for 60 sec.

Alternatively:

6.2 Touch the key.

If the third input function is that of the digital input (parameter

P4 = 0), the label “Pb3” will not be displayed.

3.6 Defrosting activation in manual mode

1. Make sure that the keyboard is not locked and that no

procedure is in progress.

2. Touch the key down for 4 s.

If the evaporator probe function is that of the defrosting

probe (parameter P3=1) and upon activation of defrosting,

the temperature of the evaporator is higher than that

established with parameter d2, the defrosting function will

not be activated.

3.7 Switch-on/off of the cell light in manual

mode (only if parameter u1

and/or parameter u11 is set at 0)

1. Make sure no procedures are in progress.

2. Touch the key: the “AUX” LED will switch on/

off.

Using the door digital inputs it is also possible to switch on/

off the cell light by remote; see also parameter u2.

If the u1 parameter is set at 0 (or the fourth output manages

the cell light), check that the u11 parameter is set to values

other than 0,1 and 2 (and vice-versa)

3.8 Switch-on of demister resistors (only if

parameter u1 and/or parameter u11 is set at 1)

1. Ensure that the device is switched on and that no other

procedure is in progress.

2. Touch the key down for 2 s: the “AUX” LED will

light up and the resistors will be switched on, both for

the amount of time established with parameter u6.

Manually switching off the demisting resistors is not permit-

ted (that is, before the time established with parameter u6

expires).

If the u1 parameter is set at 1 (or the fourth output manages

the demisting resistors), check that the u11 parameter is set

to values other than 0, 1 and 2 (and vice-versa)

3.9 Switch-on/off of auxiliary output in manual

mode (only if parameter u1 and/or parameter

u11 is set at 2)

1. Make sure that the keyboard is not locked and that no

procedure is in progress.

2. Touch the key: the “AUX” LED will switch on/

off.

Using the digital inputs it is also possible to remotely switch

on/off the auxiliary output.

If the u1 parameter is set at 2 (or the fourth output manages

the auxiliary output), check that the u11 parameter is set to

values other than 0, 1 and 2 (and vice-versa)

If the auxiliary output has been turned on manually, it shall

be possible to turn it off only in the same mode (similarly, if

it was turned on from remote, it shall be possible to turn it

off only from remote); see also parameter u2.

3.10 Locking/unlocking the keyboard

To lock the keyboard:

1. Make sure no procedures are in progress.

2. Do not operate for 30 s: the display shall show “Loc”

for 1 s and the keyboard shall lock automatically.

If the keyboard is locked, the following are not permitted:

- device switch-on/off in manual mode

- display of evaporator temperature (via the procedure

explained in paragraph 3.4)

- display of the condenser temperature (via the proce-

dure indicated in paragraph 3.5)

- manual activation of defrosting

- manual switch on/off of the auxiliary output

- see information regarding the HACCP alarms

- cancellation of HACCP alarm list

- display of compressor operation hours

- cancellation of compressor operation hours

- changing the working set-point (with the procedure

described in 8.1).

The operations cause the display of the label “Loc” per 1

sec.

To unlock the keyboard:

1. Touch a key down for 1 s: the display will show the

message “UnL” for 1 sec.

3.11 Silencing the buzzer

To lock the keyboard:

1. Make sure no procedures are in progress.

2. Touch a key (the first pressing of the key will not cause

the effect associated with that key).

If parameter u1 and/or parameter u11 is set at 3 (or if the

fourth output and/or the fifth output manage the alarm

output) and parameter u4 is set at 1, pressing the key will

also cause the deactivation of the output.

If parameter u9 is set to 0, the buzzer will not be activated.

3.12 Activation/deactivation of “overcooling”

function

1. Make sure that the keyboard is not locked and that no

other operation is in progress, that defrosting and/or

dripping is not in progress and that the evaporator fan

is off.

2. Hold the key down.

During the “overcooling” function the working set-point is

reduced by the temperature established with parameter r5;

the operation lasts for the amount of time established with

parameter r6.

During “overcooling” defrosting is never activated; if the

defrosting interval expires when the function is in progress,

defrosting will be activated at the end of the function.

4 ENERGY SAVING

4.1 Preliminary notes

Once the time you have set with parameter i10 has passed,

without activations of the door microswitch input (after the

cell temperature has reached the work set-point) the “en-

ergy saving” function is activated (until the input is activated

again).

During function “Energy Saving” the working set-point is

increased of the temperature you have set with parameter

r4 and the evaporator fan is turned on cyclically (parameter

F13 sets the time the fan remains turned off and parameter

F14 the time it remains turned on).

It is also possible to activate the “energy saving” function in

remote mode through the digital inputs (with effect only on

the compressor).

5 “HACCP” FUNCTION

5.1 Preliminary notes

The device can memorise the following HACCP alarms:

- minimum temperature alarm (code “AL”)

- maximum temperature alarm (code “AH”)

- door microswitch input alarm (code “id”)

The device supplies the following information for every alarm:

- the critical value

- the duration of the alarm (from 1 min to 99 hours and

59 min, partial if the alarm is in progress).

Code Critical value

AL the minimum temperature of the cell during any

alarm of this type

AH the maximum temperature of the cell during any

alarm of this type

iD the maximum cell temperature during any alarm

of this type; see also parameter i4

The device stored the minimum temperature alarm on con-

dition that the temperature associated to the alarm is that of

the cell (parameter A0 = 0).

if the device is switched off, no alarms will be stored.

The device updates the information regarding the alarms

provided the critical value of the new alarm is more critical

than that stored or provided the information has already

been displayed.

The “HACCP” LED provides information regarding the stor-

age status of the alarms; see paragraph 9.1.

5.2 Display of HACCP alarm information

To begin the procedure:

1. Make sure that the keyboard is not locked and that no

procedure is in progress.

2. Touch the key down for 1 s: the display will

show the first label available.

3. Touch the key or the key to select

“LS”.

4. Touch the key: the display will show one of the

codes included in the table in paragraph 5.1.

If the device does not have any alarms stored, the label

“LS” will not be displayed.

To select an alarm:

5. Touch the key or the key (to select,

for example, “AH”).

To see information regarding the alarm:

6. Touch the key: the HACCP LED will stop flashing

and remain on permanently and the display will show,

for example, the following information in succession

(for example):

Inform. Meaning

8,0 the critical value is 8,0 °C/8 °F

dur the display is about to show the alarm duration

h01 the alarm lasted for 1 hour (other data continues)

n15 the alarm lasted 1 hour and 15 min

AH the alarm selected

the displays each piece of information for 1 s.

To exit the information sequence:

7. Touch the key: the display will show the alarm

selected (in the example “AH”).

To exit the procedure:

8. Exit the information sequence.

9.1 Touch the key or the key until the

display shows the cell temperature or do not operate

for 60 sec.

Alternatively:

9.2 Touch the key.

5.3 Cancelling the HACCP alarm list

1. Make sure that the keyboard is not locked and that no

procedure is in progress.

2. Touch the key down for 1 s: the display will

show the first label available.

3. Touch the key or the key to select

“rLS”.

4. Touch the key.

5. Touch the key or the key within 15 s to

set “149”.

6. Touch the key or do not operate for 15 sec: the

display will show a flashing “- - - -” for 4 sec and the

“HACCP” LED switches off, after which the device will

exit the procedure.

If the device does not have any alarms stored, the label

“rLS” will not be displayed.

6 COMPRESSOR OPERATING HOURS COUNT

6.1 Preliminary notes

The device can memorise up to 9.990 compressor operating

hours.

The parameter C10 establishes the number of operating

hours is higher than the limit at which the need for mainte-

nance is signalled.

6.2 Display of Compressor Operation Hours

1. Make sure that the keyboard is not locked and that no

procedure is in progress.

2. Touch the key down for 1 s: the display will

show the first label available.

3. Touch the key or the key to select

“CH”.

4. Touch the key.

To exit the procedure:

5. Touch the key or do not operate for

60 sec.

6.1 Touch the key or the key until the

display shows the cell temperature or do not operate

for 60 sec.

Alternatively:

6.2 Touch the key.

6.3 Cancelling the HACCP alarm list

1. Make sure that the keyboard is not locked and that no

procedure is in progress.

2. Touch the key down for 1 s: the display will

show the first label available.

3. Touch the key or the key to select

“rCH”.

4. Touch the key.

5. Touch the key or the key within 15 s to

set “149”.

6. Touch the key or do not operate for 15 sec: the

display will show “- - -” flashing for 4 sec, after which

the device will exit the procedure.

7 DEFROSTING SYNCHRONISATION (ONLY IF

PARAMETER i0 AND/OR PARAMETER i5 ARE

SET AT 6)

7.1 Preliminary notes

Activating the defrost function causes the activation of the

digital input (not for longer than the maximum time set with

parameter d24 or until the end of the pre-dripping).

If the digital input is connected in parallel to the digital input

of other devices configured in the same way, the activation

of the input shall cause the activation of the defrost function

in the other devices.

The devices launch the dripping function at the same time as

last device concludes the pre-dripping.

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8 SETTINGS

8.1 Setting the working set-point

1. Make sure that the keyboard is not locked and that no

procedure is in progress.

2. Touch the key: the LED will flash.

3. Touch the key or the key within 15

sec; see also parameters r1, r2 and r3.

4. Touch the key or do not operate for

15 sec: the LED will switch off and then the device

will exit the procedure.

To exit the procedure before the operation is complete:

5. Do not operate for 15 sec (any changes will be saved).

The working set-point can also be set via parameter SP.

8.2 Setting the configuration parameters

To begin the procedure:

1. Make sure no procedures are in progress.

2. Touch the key down for 4 s: the display will

show “PA”.

3. Touch the key.

4. Touch the key or the key within 15 s to

set “-19”.

5. Touch the key or do not operate for 15 sec: the

display will show “SP”.

To select a parameter:

6. Touch the key or the key.

To change a parameter:

7. Touch the key.

8. Touch the key or the key within 15

sec.

9. Touch the key or do not operate for 15 sec.

To exit the procedure:

10. Touch the key for 4 sec or do not operate for 60

sec (any changes will be saved).

After changing the parameters, suspend power supply flow

to the device.

8.3 Restoring the Manufacturer’s Settings

To begin the procedure:

1. Make sure no procedures are in progress.

2. Touch the key down for 4 s: the display will

show “PA”.

3. Touch the key.

To reset to the factory settings:

4. Touch the key or the key within 15 s to

set “149”.

5. Touch the key or do not operate for 15 sec: the

display will show “dEF”.

6. Touch the key.

7. Touch the key or the key within

15 s to set “4”.

8. Touch the key or do not operate for

15 sec: the display will show “- - -” flashing for

4 sec, after which the device will exit the procedure.

9. Cut the device power supply off.

To exit the procedure before the operation is complete:

10. Touch the key down for 2 s during the proce-

dure (i.e. before setting “4”: restore will not be

performed).

Make sure that the manufacturer’s settings are appropriate

(see chapter 14).

9 WARNING LIGHTS AND DIRECTIONS

9.1 Signals

LED Meaning

Compressor LED

if the LED is on, the compressor is on

if the LED is flashing:

- the working set-point is in the process of

being changed (via the procedure described

in paragraph 8.1)

- a compressor protection will be in progress;

see parameters C0, C1, C2, C14, C15, C16

and i7

Defrost LED

if the LED is on:

- defrosting is in progress

- predripping will be in progress; see

parameter d16

if the LED is flashing:

- defrosting will be requested but a compres

sor protection will be in progress; see the

parameters C0, C1 and C2

- dripping will be in progress; see parameter d7

- the refrigerant fluid heating will be in

progress; see parameter d15

Evaporator fan LED

if the LED is on:

- the evaporator fan will be on

if the LED is flashing:

- evaporator fan standstill will be in progress;

see parameter F3

AUX Auxiliary LED

if the LED is on:

- the cell light will have been switched on in

manual mode (only if parameter u1 and/or

parameter u11 is set at 0)

- the demister resistors will be switched on (only if

parameter u1 and/or parameter u11 is set at 1)

- the auxiliary output will have been switched

on in manual mode (only if parameter u1

and/or parameter u11 is set at 2)

- the door resistors will be switched on (only if

parameter u1 and/or parameter u11 is set at 4)

- neutral area operation heating elements will

be deactivated (only if parameter u1 and/or

parameter u11 is set at 5)

- the condenser fan will be on (only if parameter

u1 and/or parameter u11 is set at 6)

if the LED is flashing:

- the cell light will have been switched on in re-

mote mode; see parameters i0 and i5 (only if

parameter u1 and/or parameter u11 is set at 0)

- the auxiliary output will have been switched

on in remote mode; see parameters i0 and i5

(only if parameter u1 and/or parameter u11

is set at 1)

- the condenser fan shall be in stop delay mode;

see parameter F12 (only if parameter u1 and/

or parameter u11 is set at 6)

HACCP HACCP LED

if the LED is on, all information regarding HACCP

alarms has not been displayed

if the LED is flashing, the device has stored at least

one new HACCP alarm

if the LED is off, all information regarding the HACCP

alarms has been displayed or the list of alarms has

been cancelled

Maintenance LED

if the LED is on, compressor maintenance will be

requested; see parameter C10

°C Degree Celsius LED

if the LED is on, the temperatures will be displayed

using the degree Celsius grade unit of measure-

ment; see parameter P2

if the LED is flashing, the “energy saving” function

is in progress (with effect only on the compressor)

°F Degree Fahrenheit LED

if the LED is , the temperatures will be displayed

using the degree Fahrenheit grade unit of meas-

urement; see parameter P2

if the LED is flashing, the “energy saving” function

is in progress (with effect only on the compressor)

On/stand-by LED

if the LED is on, the device will be off (“stand-

by” state)

if the LED is off, the device will be on (“on” state)

9.2 Signals

Code Meaning

Loc the keyboard is blocked; see paragraph 3.10

the work set-point is blocked; see parameter r3

- - - the operation requested is not available

11 ALARMS

10.1 Alarms

Code Meaning

AL Minimum alarm temperatures (HACCP alarm)

Solutions:

- check the temperature associated to the

alarm; see parameters A0, A1 and A2

Main consequences:

- if parameter A0 is set to 0, the device will

store the alarm

- the alarm output will be activated (only if pa-

rameter u1 and/or parameter u11 is set at 3)

AH Maximum temperature alarm (HACCP alarm)

Solutions:

- check the cell temperature; see parameters

A4 and A5

Main consequences:

- the device will memorise the alarm

- the alarm output will be activated (only if pa-

rameter u1 and/or parameter u11 is set at 3)

id Door microswitch input alarm (HACCP alarm)

Solutions:

- check the causes of the activation of the in-

put; see parameters i0, i1, i5 and i6

Main consequences:

- the effect established with the parameters i0

and i5

- if parameter is set to 1, the device will store the

alarm, provided parameter i2 is not set to -1

- the alarm output will be activated (only if pa-

rameter u1 and/or parameter u11 is set at 3)

iA Multifunction input alarm

Solutions:

- check the causes of the activation of the in-

put; see parameters i0, i1, i5 and i6

Main consequences:

- the effect established with the parameters i0

and i5

- the alarm output will be activated (only if

parameter u1 and/or parameter u11 is set at 3)

iSd Pressure switch alarm

Solutions:

- check the causes of the activation of the in-

put; see parameters i0, i1, i5, i6, i7, i8 and i9

- switch off and re-start the device or suspend

the power supply

Main consequences:

- the regulators will switch off

- the alarm output will be activated (only if

parameter u1 and/or parameter u11 is set at 3)

COH Condenser overheated alarm.

Solutions:

- check the condenser temperature; see pa-

rameter C6

Main consequences:

- the alarm output will be activated (only if

parameter u1 and/or parameter u11 is set at 3)

- the condenser fan will be on (only if parameter

u1 and/or parameter u11 is set at 6)

CSd Condenser overheated alarm.

Solutions:

- check the condenser temperature; see pa-

rameter C7

- switch the device off and back on again: if

when the device is switched back on, the

temperature of the condenser is still higher

than that established in parameter C7, dis-

connect the power supply and clean the con-

denser

Main consequences:

- the compressor and the evaporator fan will be

switched off

- the alarm output will be activated (only if

parameter u1 and/or parameter u11 is set at 3)

- the condenser fan will be on (only if parameter

u1 and/or parameter u11 is set at 6)

dFd Defrosting alarm switched off because maximum

time has been reached

Solutions:

- check the integrity of the evaporator probe;

see parameters d2, d3 and d11

- touch a key to restore normal display

Main consequences:

- the device will continue to operate normally

When the cause of the alarm disappears, the device restores

normal operation, except for the following alarms:

- pressure switch alarm (code “iSd”) which requires the

switching off of the device or the temporary suspension

of the power supply

- compressor blocked by condenser temperature alarm

(code “CSd”) which requires the switching off of the

device or the temporary suspension of the power sup-

ply

- defrosting alarm switched off because maximum time

has been reached (code “dFd”) which requires the

pressing of a key.

11 ERRORS

11.1 Errors

Code Meaning

Pr1 Cell probe error

Solutions:

- check that the probe is the PTC or NTC type;

see parameter P0

- - check the device-probe connection

- check the cell temperature

Main consequences:

- compressor activity will depend on param-

eters C4 and C5

- the defroster will not be activated

- the alarm output will be activated (only if

parameter u1 and/or parameter u11 is set at 3)

- the door resistors will be switched off (only if

parameter u1 and/or parameter u11 is set at 4)

- the neutral area operation heating elements

will be deactivated (only if parameter u1 and/

or parameter u11 is set at 5)

EVCO S.p.A. | Code 1043S205E104 | Page 4 of 8 | PT 04/15 | version 1.0

Pr2 Evaporator probe error

Solutions:

- the same as the preceding case but with re-

spect to the evaporator probe

Main consequences:

- if parameter P3 is set to 1, the defrosting

period will last for the amount of time set with

parameter 3

- if parameter P3 is set to 1 and parameter d8

is set to 2 or to 3, the device will operate as if

parameter d8 were set to 0

- if parameter F0 is set to 3 or 4, the device will

operate as if the parameter were set to 2

- the alarm output will be activated (only if

parameter u1 and/or parameter u11 is set at 3)

Pr3 Condenser probe error.

Solutions:

- the same as the preceding case but with re-

spect to the condenser probe

Main consequences:

- condenser overheated alarm (code “COH”)

will not be activated

- the compressor blocked alarm (“CSd” code)

will never be activated

- the alarm output will be activated (only if

parameter u1 and/or parameter u11 is set at 3)

- the condenser fan will operate parallel tot the

compressor (only if parameter u1 and/or

parameter u11 is set at 6)

ErC User interface - control module compatibility error

Solutions:

- check the user interface compatibility with the

control module (check the data on the labels)

Main consequences:

- the control module shall continue operating in

the standard way

ErL User interface - control module communication error

Solutions:

- check the user interface-control module

connection

Main consequences:

- the control module shall continue operating in

the standard way

When the problem that caused the alarm disappears, the

device is restored to normal operation.

12 TECHNICAL DATA

12.1 Technical data

Purpose of the command device: operating command

device.

Construction of the command device: built-in elec-

tronic device.

User interface casing:

- user interface: black self-extinguishing

- control module: without cover.

User interface size:

- user interface: 75,0 x 33,0 x 39,5 mm (2,952 x 1,299

x 1,555 in; L x H x P)

- control module: 134,0 x 108,0 x 24,0 mm (5,275 x

4,251 x 0,944 in; L x H x P).

Method of mounting the command device:

- user interface: on panel, with snap-on brackets

- control module: on a flat surface, with spacers.

Protection rating:

- user interface: IP65 (the front one)

- control module: IP00.

Connections:

- user interface: removable screw connection terminal

block (control module)

- control module: fixed screw connection terminal block

(inputs), 6.3 mm (0.248 in, power, device earthing and

outputs) faston connectors, removable screw connection

terminal block (user interface), 6-pole connector (serial

port).

The maximum length of the analogue input and digital input

connection cables must be less than 10 m (32,808 ft).

The maximum length of the user interface-control module

connection cables must be less than 20 m (65.616 ft).

Operating temperature: from 0 to 55 °C (fron 32 to 131

°F).

Storage temperature: from -25 to 70 °C (from -13 to 158

°F).

Humidity for use: from 10% to 90% relative humidity

without condensate.

Command device pollution situation: 2.

Power supply: 115... 230 VAC (+10% -15%), 50/60 Hz,

5,5 VA max.

Rated impulse voltage: 4K V.

Overvoltage category: II.

Class and structure of software: A.

Analogue inputs: 2 inputs (cell probe and evaporator

probe), can be set via configuration parameter for PTC/NTC

probes.

PTC type analogue inputs (990 Ω@ 25 °C, 77 °F)

Type of sensor: KTY 81-121.

Measurement field: from -50 to 150 °C (from -58

to 302 °F).

Resolution: 0.1 °C (1 °F).

Protection: none.

NTC type analogue inputs (10K Ω@ 25 °C, 77 °F)

Type of sensor: ß3435.

Measurement field: from -40 to 105 °C (from -40

to 220 °F).

Resolution: 0,1 °C (1 °F).

Protection: none.

Digital inputs: 1 input (door microswitch/multifunction 2),

which can be set via configuration parameter due to normally

open contact/normally closed contact (free of voltage contact,

5 VDC, 2 mA)

Digital inputs

Power: none.

Protection: none.

Other inputs: 1 input that can be set via configuration

parameter for analogue input (condenser probe)/digital in-

put (door microswitch/multifunction 1), with the same tech-

nical features illustrated previously.

Displays: custom 3 digit display with function icon.

Digital outputs:

4 outputs (electromechanical relays) in EV3S204model,

5 outputs (electromechanical relays) in EV3S205 model

- 1 x 30 A res. output @ 250 VAC type SPST (K2) for

compressor management

- 1 x 16 A res. output @ 250 VAC type SPST (K4) for

defrost management

- 1 x 8 A res. output @ 250 VAC type SPST (K5) for

evaporator fan management

- 1 x 16 A res. output @ 250 VAC type SPST (K3) for

management of the cell light, demisting resistors, aux.

output, alarm output, door resistors, neutral area

operation resistors, condenser fan or compressor 2

- 1 x 30 A res. output @ 250 VAC type SPST (K1) for

management of the cell light, demisting resistors, aux.

output, alarm output, door resistors, neutral area

operation resistors, condenser fan or compressor 2 (not

available in the EVRS205 model).

The maximum load current allowed is 20 A.

Type 1 or Type 2 actions: Type 1.

Complementary features of Type 1 or Type 2 actions: C.

Communication port: 1 x TTL serial port with MODBUS

communication protocol (for EVKEY programming key and

other EVCO products).

Signal buzzer and alarm: on request.

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13 WORKING SET-POINT AND CONFIGURATION PARAMETERS

13.1 Working set-point

PARAM. MIN. MAX. U.M. EVRS204 EVRS205 WORKING SET-POINT

r1 r2 °C/°F (1) -18,0 -18,0 working set-point; see also r0

13.2 Configuration parameters

PARAM. MIN. MAX. U.M. EVRS204 EVRS205 WORKING SET-POINT

SP r1 r2 °C/°F (1) -18,0 -18,0 working set-point; see also r0

PARAM. MIN. MAX. U.M. EVRS204 EVRS205 MEASUREMENT INPUTS

CA1 -25 25,0 °C/°F (1) 0,0 0,0 offset cell probe

CA2 -25 25,0 °C/°F (1) 0,0 0,0 offset evaporator probe

CA3 -25 25,0 °C/°F (1) 0,0 0,0 offset condenser probe

P0 0 1 - - - 1 1 probe type

0=PTC

1=NTC

P1 0 1 - - - 1 1 degree Celsius decimal point (during normal operation)

1 = YES

P2 0 1 - - - 0 0 temperature unit of measurement (2)

0=°C

1=°F

P3 0 2 - - - 1 1 evaporator probe function

0 = probe absent

1 = defrosting probe and probe for evaporator fan thermostating

2 = probe for evaporator fan thermostating

P4 0 1 - - - 1 1 third input function

0 = digital input (door microswitch/multi-function input 1)

1 = analogue input (condenser probe)

P8 0 250 0,1 s 5 5 delay displaying temperature variation detected by the probes

PARAM. MIN. MAX. U.M. EVRS204 EVRS205 MAIN REGULATOR

r0 0,1 (3) 15,0 °C/°F (1) 2,0 2,0 working set-point differential

r1 -99 r2 °C/°F (1) -50 -50 minimum working set-point

r2 r1 99,0 °C/°F (1) 50,0 50,0 maximum working set-point

r3 0 1 - - - 0 0 locking of working set-point calibration (using the procedure described in paragraph 9.1)

1 = YES

r4 0,0 99,0 °C/°F (1) 0,0 0,0 increase in temperature during “energy saving” function; see also i0, i5 and i10

r5 0,0 99,0 °C/°F (1) 0,0 0,0 decrease in temperature during “overcooling” function; see also r6

r6 0 240 min 30 30 duration of “overcooling” function; see also r5

PARAM. MIN. MAX. U.M. EVRS204 EVRS205 COMPRESSROR PROTECTION SYSTEM

C0 0 240 min 0 0 delay in switching on of compressor after the device switches on (4)

C1 0 240 min 5 5 minimum time between two consecutive compressor start-ups; also delay in compressor start-up after conclusion of cell probe error

(code “Pr1”) (5) (6)

C2 0 240 min 3 3 minimum compressor switch-off duration; see also C18 (5) (7)

C3 0 240 s 0 0 minimum duration of compressor switch on time

C4 0 240 min 10 10 duration of compressor switch off during cell probe error (code “Pr1”); see also C5

C5 0 240 min 10 10 duration of compressor switch on during cell probe error (code “Pr1”); see also C4

C6 0,0 199 °C/°F (1) 80,0 80,0 condenser temperature is higher than that at which the condenser overheating alarm is activated (code “COH”) (8)

C7 0,0 199 °C/°F (1) 90,0 90,0 condenser temperature is higher than the limit at which the compressor blocked alarm is activated (code “CSd”)

C8 0 15 min 1 1 blocked compressor alarm delay (code “CSd”) (9)

C10 0 999 10 h 0 0 number of operating hours is higher than the limit at which the need for maintenance is signalled

0 = function absent

C11 0 240 s 3 3 compressor 2 start delay after the start of compressor 1 (only if u1 and/or u11 = 7) (10)

PARAM. MIN. MAX. U.M. EVRS204 EVRS205 DEFROSTING

d0 0 99 h 8 8 if d8 = 0, 1 or 2, defrosting interval (11)

0 = interval defrosting will never be activated

if d8 = 3, maximum defrost interval

d1 0 2 - - - 0 0 type of defrosting

ELECTRIC - during defrosting the compressor will remain off and the defrosting output will be activated; evaporator fan

activity will depend on parameter F2

BY HOT GAS - during defrosting the compressor will be switched on and the defrosting output will be activated; evaporator

fan activity will depend on parameter F2

VIA STOPPING OF COMPRESSOR - during defrosting the compressor will remain switched off and the defrosting output will

remain deactivated; evaporator fan activity will depend on parameter F2

d2 -99 99,0 °C/°F (1) 2,0 2,0 temperature at end of defrosting (only if P3 = 1); see also d3

d3 0 99 min 30 30 if P3 = 0 or 2, defrosting duration

if P3 = 1, maximum defrosting duration; see also d2

0 = defrosting will not be activated

d4 0 1 - - - 0 0 defrosting on device switch-on (4)

1 = YES

d5 0 99 min 0 0 if d4 = 0, minimum time between switching on of device and activation of defrosting; see also i0 and i5 (4)

if d4 = 1, delay in activation of defrosting after device is switched on ; see also i0 and i5 (4)

d6 0 1 - - - 1 1 temperature displayed during defrosting

0 = cell temperature

1 = if at the time of defrosting activation, the cell temperature is lower than the “working set-point + r0”, at most “working

set- point + r0”; if at the time of defrosting activation, the cell temperature is higher than the “working set-point + r0”,

at most the cell temperature when defrosting is activated(12)

d7 0 15 min 2 2 dripping duration (during dripping the compressor will remain switched off and the defrosting output will remain deactivated; if d16

= 0, evaporator fan activity will depend on parameter F2; if d16 ≠0, the evaporator fan will remain switched off)

d8 0 3 - - - 0 0 defrosting activation methods

AT INTERVALS - defrosting will be activated once the device has altogether been running for time d0

AT INTERVALS - FOR COMPRESSOR SWITCH-ON - defrosting will be activated once the compressor has altogether been

switched on for time d0

AT INTERVALS - FOR EVAPORATOR TEMPERATURE - defrosting will be activated when the evaporator temperature has

remained below the temperature d9 for a total time of d0 (13)

ADAPTABLE - defrosting will be activated at intervals, whose duration will each time depend on the duration of compressor

switch-ons and the evaporator temperature; see also d18, d19 and d22 (13)

d9 -99 99,0 °C/°F (1) 0,0 0,0 evaporator temperature is higher than that at which the defrost interval counter is suspended (only if d8 = 2)

d11 0 1 - - - 0 0 enabling of defrosting alarm concluded for maximum duration (code “dFd”; only if P3 = 1 and in absence of an evaporator probe

error (code “Pr2”)

1 = YES

d15 0 99 min 0 0 minimum time that the compressor must be switched on before defrosting can be activated (only if d1 = 1) (14)

d16 0 99 min 0 0 predripping duration (during predripping the compressor will remain switched off, the defrosting output will be activated and the

evaporator fan will remain switched off)

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d18 0 999 min 40 40 defrosting interval (only if d8 = 3; defrosting will be activated when the compressor has been on totally, with the evaporator

temperature below that of d22, for time d18)

0 = defrosting will never be activated due to the effect of this condition

d19 0,0 40,0 °C/°F (1) 3,0 3,0 evaporator temperature above which the defrost is activated (relative to the evaporator temperatures average, or “evaporator

temperatures average - d19”) (only if d8 = 3)

d20 0 500 min 180 180 minimum consecutive time the compressor must be switched on such as to provoke the defrost activation

0 = defrosting will never be activated due to the effect of this condition

d22 0,0 10,0 °C/°F (1) 2,0 2,0 evaporator temperature above which the defrosting interval is suspended (relative to the evaporator temperatures average, or

“evaporator temperatures average + d22”) (only if d8 = 3); see also d18

d24 0 999 min 30 30 maximum activation duration of the defrost synchronisation input due to defrost activation (only if i0 and/or i5 = 6)

PARAM. MIN. MAX. U.M. EVRS204 EVRS205 TEMPERATURE ALARMS

A0 0 1 - - - 0 0 temperature associated with the minimum temperature alarm (code “AL”)

0 = cell temperature

1 = evaporator temperature (15)

A1 -99 99,0 °C/°F (1) -10,0 -10,0 temperature below that at which the minimum temperature alarm is activated (code “AL”); see also A0, A2 and A11

A2 0 2 - - - 1 1 type of minimum temperature alarm (code “AL”)

0 = alarm absent

1 = relative to working set-point (that is “working set-point - A1”; consider A1 without sign)

2 = absolute (that is A1)

A4 -99 99,0 °C/°F (1) 10,0 10,0 temperature higher than that at which the maximum temperature alarm is activated (code “AH”); see also A5 and A11

A5 0 2 - - - 1 1 type of maximum temperature alarm (code “AH”)

0 = alarm absent

1 = relative to working set-point (that is “working set-point + A4”; consider A1 without sign)

2 = absolute (that is A4)

A6 0 240 min 120 120 delay in maximum temperature alarm (code “AH”) after the device is switched on (4)

A7 0 240 min 15 15 temperature alarm delay (code “AL” and code “AH”)

A8 0 240 min 15 15 delay in maximum temperature alarm (code “AH”) from the conclusion of evaporator fan standstill (16)

A9 0 240 min 15 15 delay in maximum temperature alarm (code “AH”) following the deactivation of the door microswitch input (17)

A11 0,1 (3) 15,0 °C/°F (1) 2,0 2,0 differential of parameters A1and A4

PARAM. MIN. MAX. U.M. EVRS204 EVRS205 EVAPORATOR FAN AND CONDENSER FAN

F0 0 4 - - - 1 1 evaporator fan activity during normal operation

0 = switched off

1 = switched on; see also F13, F14 and i10 (18)

2 = in parallel with the compressor; see also F9, F13, F14 and i10 (19)

3 = depending on F1; see also F9, F13 and F14 (20) (21)

4 = switched off if the compressor is switched off, dependent on F1 if the compressor is switched on; see also F9 , F13 and F14

(20) (22)

5 = dependent on F6; see also F9

F1 -99 99,0 °C/°F (1) -1,0 -1,0 evaporator temperature above the limit at which the evaporator fan is switched off (only if F0 = 3 or 4); see also F8

F2 0 2 - - - 0 0 evaporator fan activity during defrosting and dripping

0 = switched off

1 = switched on (setting parameter d7 to 0 is recommended)

2 = dependent on F0

F3 0 15 min 2 2 maximum duration of evaporator fan deactivation; see also F7 (during evaporator fan deactivation the compressor can be switched

on, the defrosting output will remain deactivated and the evaporator fan will remain switched off)

F4 0 240 s 60 60 time duration that evaporator fan is switched off during operation for a low percentage of relative humidity when the compressor

is switched off; see also F5 (only if F0 = 5)

F5 0 240 s 10 10 time duration that evaporator fan is switched on during operation for a low percentage of relative humidity when the compressor

is switched off; see also F4 (only if F0 = 5)

F6 0 1 - - - 0 0 operation for low or high percentage of relative humidity (only if F0 = 5) (25)

LOW RELATIVE HUMIDITY - the evaporator fan will operate in parallel with the compressor; see also F4 and F5

1=HIGH RELATIVE HUMIDITY - the evaporator fan will always be switched on

F7 -99 99,0 °C/°F (1) 5,0 5,0 evaporator temperature below limit at which the evaporator fan is deactivated (relative to working set-point, that is “working set-

point + F7”); see also F3

F8 0,1 (3) 15,0 °C/°F (1) 2,0 2,0 parameter F1 differential

F9 0 240 s 0 0 delay in the switching off of evaporator fan following the switching off of the compressor

F11 0,0 99,0 °C/°F (1) 15,0 15,0 temperature of the condenser above which the condenser fan is switched on (“F11 + 2,0 °C/4 °F, only if

u1 and/or u11 = 6) (23) (24)

F12 0 240 s 30 30 delay in the switching off of condenser fan following the switching off of the compressor (only if P4 = 0 and u1 and/or u11 = 6)

F13 0 240 10 s 30 30 time the evaporator fan remains turned off during function “energy saving”; see also F14 and i10

F14 0 240 10 s 30 30 time the evaporator fan remains turned on during function “energy saving”; see also F13 and i10

PARAM. MIN. MAX. U.M. EVRS204 EVRS205 DIGITAL INPUTS

i0 0 11 - - - 7 7 effect caused by the activation of the door microswitch/multifunction 1 input; see also i4 (25)

0 = no effect

DOOR MICROSWITCH - COMPRESSOR AND EVAPORATOR FAN SWITCH-OFF - the compressor and the evaporator fan will

be switched off (at maximum for time i3 or until the input is deactivated) (26)

DOOR MICROSWITCH - EVAPORATOR FAN SWITCH-OFF - the evaporator fan will be switched off (at maximum for time

i3 or until the input is deactivated)

DOOR MICROSWITCH - CELL LIGHT SWITCH-ON - the cell light will be switched on (only if u1 and/or u11 = 0, until the input

will be deactivated)

DOOR MICROSWITCH - SWITCH-OFF OF THE COMPRESSOR, EVAPORATOR FAN, SWITCH-ON OF CELL LIGHT - the

compressor and the evaporator fan will be switched off (at maximum for time i3 or until the input is deactivated) and the

cell light will be switched on (only if u1 and/or u11 = 0, until the input is deactivated) (26)

DOOR MICROSWITCH - SWITCH-OFF OF THE EVAPORATOR FAN, SWITCH-ON OF CELL LIGHT - the evaporator fan will be

switched off (at maximum for time i3 or until the input is deactivated) and the cell light will be switched on (only if u1 and/

or u11 = 0, until the input is deactivated)

MULTIFUNCTION - SYNCHRONISATION OF DEFROSTING PERIODS - the activation of the defrost function shall cause the

activation of the input (for the d24 time period at the most or until the conclusion of the pre-dripping phase): if the input

is connected in parallel with the inputs of other devices configured in the same way, the activation of this input shall cause

the activation of the defrost function in the other devices; the devices shall launch the dripping phase exactly at the end

of the pre-dripping phase of the last device.

MULTIFUNCTION - ACTIVATION OF “ENERGY SAVING” FUNCTION - the “energy saving” function will be activated (just with

effect on the compressor, until the input is deactivated); see also r4

MULTIFUNCTION - ACTIVATION OF MULTIFUNCTION INPUT ALARM - once time i7 has passed the display will show the

flashing code “iA” and the buzzer will be activated (until the input is deactivated)

MULTIFUNCTION- ACTIVATION OF THE PRESSURE SWITCH ALARM - the compressor will be switched off, if u1 and/or u11

= 6 the condenser fan will be switched on, the display will show the flashing code iA” and the buzzer will be activated

(until the input is deactivated): when the input has been activated the number of times established with parameter i8

the regulators will be switched off, if u1 and/or u11 = 6 the condenser fan will be switched on, the display will show the

flashing code “iSd” and the buzzer will be activated (until the input is deactivated and the device is switched off and

re-started or until the power supply is interrupted); see also i7 and i9

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10 = MULTIFUNCTION - SWITICHING ON THE AUXILIARY OUTPUT - the auxiliary output will be switched on (only if u1 and/or

u11 = 2, until the input is deactivated)

11 = MULTIFUNCTION - SWITCHING OFF THE DEVICE - the device will be switched off (until the input is deactivated)

i1 0 1 - - - 0 0 type of door microswitch/multifunction 1 input contact

0 = normally open (active input with closed contact)

1 = normally closed (active input with open contact)

i2 -1 120 min 30 30 delay in signalling of door microswitch input alarm (code “id”)

-1 = the alarm will not be signalled

i3 -1 120 min 15 15 maximum duration of the effect caused by the activation of the door microswitch input on the compressor and the evaporator

-1 = the effect will last until the input is deactivated

i4 0 1 - - - 0 0 storage of door microswitch input alarm (code “id”) (27)

1 = YES

i5 0 11 - - - 5 5 effect caused by the activation of the door microswitch/multifunction 2 input; see also i4 (25)

0 = no effect

DOOR MICROSWITCH - COMPRESSOR AND EVAPORATOR FAN SWITCH-OFF - the compressor and the evaporator fan will

be switched off (at maximum for time i3 or until the input is deactivated) (26)

DOOR MICROSWITCH - EVAPORATOR FAN SWITCH-OFF - the evaporator fan will be switched off (at maximum for time

i3 or until the input is deactivated)

DOOR MICROSWITCH - CELL LIGHT SWITCH-ON - the cell light will be switched on (only if u1 and/or u11 = 0, until the input

will be deactivated)

DOOR MICROSWITCH - SWITCH-OFF OF THE COMPRESSOR, EVAPORATOR FAN, SWITCH-ON OF CELL LIGHT - the

compressor and the evaporator fan will be switched off (at maximum for time i3 or until the input is deactivated) and the

cell light will be switched on (only if u1 and/or u11 = 0, until the input is deactivated) (26)

DOOR MICROSWITCH - SWITCH-OFF OF THE EVAPORATOR FAN, SWITCH-ON OF CELL LIGHT - the evaporator fan will be

switched off (at maximum for time i3 or until the input is deactivated) and the cell light will be switched on (only if u1 and/

or u11 = 0, until the input is deactivated)

MULTIFUNCTION - SYNCHRONISATION OF DEFROSTING PERIODS - the activation of the defrost function shall cause the

activation of the input (for the d24 time period at the most or until the conclusion of the pre-dripping phase): if the input

is connected in parallel with the inputs of other devices configured in the same way, the activation of this input shall cause

the activation of the defrost function in the other devices; the devices shall launch the dripping phase exactly at the end

of the pre-dripping phase of the last device.

MULTIFUNCTION - ACTIVATION OF “ENERGY SAVING” FUNCTION - the “energy saving” function will be activated (just with

effect on the compressor, until the input is deactivated); see also r4

MULTIFUNCTION - ACTIVATION OF MULTIFUNCTION INPUT ALARM - once time i7 has passed the display will show the

flashing code “iA” and the buzzer will be activated (until the input is deactivated)

MULTIFUNCTION- ACTIVATION OF THE PRESSURE SWITCH ALARM - the compressor will be switched off, if u1 and/or u11

= 6 the condenser fan will be switched on, the display will show the flashing code iA” and the buzzer will be activated (until

the input is deactivated): when the input has been activated the number of times established with parameter i8 the

regulators will be switched off, if u1 and/or u11 = 6 the condenser fan will be switched on, the display will show the flashing

code “iSd” and the buzzer will be activated (until the input is deactivated and the device is switched off and re-started

or until the power supply is interrupted); see also i7 and i9

10 = MULTIFUNCTION- SWTICHING ON THE AUXILIARY OUTPUT - the auxiliary output will be switched on (only if u1 and/or u11

= 2, until the input is deactivated)

11 = MULTIFUNCTION - SWITCHING OFF THE DEVICE - the device will be switched off (until the input is deactivated)

i6 0 1 - - - 0 0 type of door microswitch/multifunction 2 input contact

0 = normally open (active input with closed contact)

1 = normally closed (active input with open contact)

i7 0 120 min 0 0 if i1 and/or i5 = 8, multifunction input alarm delay (code “iA”)

if i1 and/or i5 = 9, delay in compressor switching on after the deactivation of the multifunction input (28)

i8 0 15 - - - 0 0 number of multifunction input alarms (code “iA”) such to cause a pressure switch alarm (code “iSd”) (only if i0 and/or i5 = 9)

0 = alarm absent

i9 1 999 min 240 240 time that must pass in absence of multifunction output alarms (code “iA”) so that the alarm counter is reset (only if i0 and/or i5 = 9)

i10 0 999 min 0 0 time without activations of the door switch input (on condition that the cabinet temperature has reached the working set-point) in

order that function “energy saving” is activated

0 = the function will never be activated due to the effect of this condition

i13 0 240 - - - 180 180 number of door switch input activations such as to provoke the defrost activation

0 = defrosting will never be activated due to the effect of this condition

i14 0 240 min 32 32 minimum duration of the door switch input activation such as to provoke the defrost activation

0 = defrosting for this condition will never be activated

PARAM. MIN. MAX. U.M. EVRS204 EVRS205 DIGITAL OUTPUTS

u1 0 7 - - - 0 0 operation controlled by fourth output (29)

CELL LIGHT - in this case the key and parameters i0, i5 and u2 will become relevant

DEMISTER RESISTORS - in this case the key and parameter u6 will become relevant

AUXILIARY OUTPUT - in this case the key and parameters i0, i5 e u2 will become relevant

ALARM OUTPUTS - in this case parameter u4 will become relevant

DOOR RESISTORS - in this case parameter u5 will become relevant

RESISTORS FOR NEUTRAL AREA OPERATION - in this case parameter u7 will become relevant

EVAPORATOR FAN - in this case parameters P4, F11 and F12 will become relevant

7=COMPRESSOR 2 - in this case parameter C11 will become relevant

u2 0 1 - - - 0 0 enabling of manual switch on/switch off of the cell light or the auxiliary output when the device is switched off (only if u1 and/or

u11 = 0 or 2) (30)

1 = YES

u4 0 1 - - - 1 1 enabling of alarm output deactivation with the silencing of the buzzer (only if u1 and/or u11 = 3)

1 = YES

u5 -99 99,0 °C/°F (1) -1,0 -1,0 temperature of the cell below which the door resistors are switched on (“u5 - 2,0 °C/4 °F, only if u1 and/or u11 = 4) (8)

u6 1 120 min 5 5 operating time of demister resistors (only if u1 and/or u11 = 1)

u7 -99 99,0 °C/°F (1) -5,0 -5,0 neutral area value (relative to the work set-point, i.e. “work set-point + u7) (only if u1 and/or u11 = 5) (31)

u8 - - - - - - - - - - - - - - - reserved

u9 0 1 - - - 1 1 enabling the buzzer

1 = YES

u11 0 7 - - - non disp. 3 operation controlled by fifth output (29)