Evco S.p.A. • Code 104X201E314 • page 1/8
EVX Series Digital Controllers for Static and Ventilated Refrigeration Display Cabinets version 3.02
EN ENGLISH
1 IMPORTANT
1.1 Important
Carefully read these instructions before installing and using the product. Pay close attention to the notes on installation and electrical wiring
connections; save these instructions together with the instrument for future reference.
The instrument must be disposed of in accordance with local laws on the collection of electrical and electronic equipment.
2 INTRODUCTION
2.1 Introduction
EVX is a new range of digital controllers for the operation of static and
ventilated refrigerating cabinets.
The series is composed of the following models:
•
EVX201 - for the operation of static refrigerated cabinets, with simple
HACCP function
•
EVX203, EVX204 and EVX205 - for the operation of ventilated refrig-
erated cabinets, with simple HACCP function
•
EVX214 and EVX215 - for the operation of ventilated refrigerated
cabinets, with timer, advanced HACCP function and an Energy Sav-
ing function.
EVX201 is equipped with:
• 1 measurement input (cell probe) for NTC probes
• 1 digital input (door microswitch)
•1digital output (relay) for compressor operation
(16 A @ 250 VAC); defrosting occurs when the compressor is stopped.
EVX203 is equipped with:
• 2 measurement inputs (cell probe and evaportor probe) for NTC
probes
• 1 digital input (door microswitch)
•3 digital outputs (relay) for compressor operation
(16 A @ 250 VAC), defrosting and the evaporator fan; defrosting may
be either electrical or by hot gas.
EVX204 and EVX205 are equipped with:
• 3 measure inputs (cell probe, evaporator probe and condenser
probe) for NTC probes
• 2 digital inputs (door microswitch and multifunction)
• 4 digital outputs (relay, 5 for EVX205) for operation of the compres-
sor (30 A @ 250 VAC), defroster, the evaporator fan, a fourth and a
fifth use (programmable as cell light, demister resistor, auxiliary out-
put, output alarm, door resistor, evaporator valve or condenser fan);
defrosting may be electric or by hot gas.
3 DIMENSIONS AND INSTALLATION
3.1 Dimensions
The dimensions are expressed in mm (in).
3.2 Installation
Back panel installation using M3 studs.
4 USER INTERFACE
4.1 Preliminary signals
The user interface consists of a custom 4-digit display (with decimal
points and function icons) and six keys (SET, UP, DOWN, DEFROST,
AUXILIARY and ON/STAND-BY).
EVX214 and EVX215 are equipped with:
• Real Time Clock
• 3 measure inputs (cell probe, evaporator probe and condenser
probe) for NTC probes
• 2 digital inputs (door microswitch and multifunction)
• 4 digital outputs (relay, 5 for EVX215) for operation of the compres-
sor (30 A @ 250 VAC), defroster, the evaporator fan, a fourth and a
fifth use (programmable as cell light, demister resistor, auxiliary out-
put, output alarm, door resistor, evaporator valve or condenser fan);
defrosting may be electric or by hot gas.
The models are open (without covers); the user interface consists of a
4 digit custom display (with decimal points and functional icons) and
by six buttons (SET, UP, DOWN, DEFROST, AUXILIARY and
ON/STAND-BY).
Installation is completed via back panel using M3 studs.
Using the EVKEY programming key (to be ordered separately) it is
possible to carry out the uploading and downloading of the configu-
ration parameters; it is also possible to connect the controllers RICS
supervision system (via serial interface, via TTL, with MODBUS com-
munications protocol).
3.3 Installation notes
• make sure that the working conditions (operating tempera-
ture, humidity, etc.) fall within the limits inidcated in the tech-
nical specifications
• do not install the device near heat sources (resistors, hot air
ducts, ect.), near devices with strong magneti (large diffu-
sors etc.) and places subject to direct sunlight, rain, humidity,
excessive dust, mechanical vibrations or shaking
• in accordance with laws on safety, protection against possi-
ble contact with electrical parts must be ensured via the cor-
rect installation of the instrument; all the parts that ensure
such protection must be secured in such a way that they
cannot be removed without the using a special tool.
Operating Statuses:
• “on” status (the instrument is powered and on: the regulators can be
switched on)
• “stand-by” status (the instrument 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)
• “off” status (the instrument 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 th e power is switched back on, the instrument displays the
status that it was in at the time it was disconnected.
4.2 Manual switching on/off of the instrument
• make sure that the keyboard is not locked and that no other opera-
tion is in progress
• press and hold down the ON/STAND-BY key for 2 sec: the on/
stand-by LED will switch off/on.
For EVX204, EVX214, EVX205 and EVX215:
Using the multifunction input it is possible to remotely switch on/off
the instrument.
4.3 The display
If the instrument is switched on, during normal operation, the display
will show the cell temperature, except during defrosting, when the
instrument will show the temperature established with parameter d6.
If the instrument is switched off, the display will be switched off.
4.4 Evaporator temperature display (but EVX201)
• make sure that the keyboard is not locked and that no other opera-
tion is in progress
• press down the DOWN key for 1 sec: the display will show the first
available label
• press and release the UP or the DOWN key to select “Pb2”
• press and release the SET key.
To exit the procedure:
• press and release the SET key and do not operate for 60 sec
• press and release the UP key and the DOWN key until the display
shows the cell temperature and then do not operate for 60 sec.
Alternatively:
• press and release the ON/STAND-BY key.
If the evaporator probe is absent (parameter P3 = 0), the label “Pb2”
will not be displayed.
4.5 Condenser temperature display (EVX204, EVX214,
EVX205 and EVX215 only)
• make sure that the keyboard is not locked and that no other opera-
tion is in progress
• press down the DOWN key for 1 sec: the display will show the first
label available
• press and release the UP key or the DOWN key to select “Pb3”
• press and release the SET key.
To exit the procedure:
• press and release the SET key and then do not operate for 60 sec
• press and release the UP or DOWN key until the display shows the
cell temperature and then do not operate for 60 sec.
Alternatively:
• press and release the ON/STAND-BY key.
If the condenser probe is absent (parameter P4 = 0), the label “Pb3”
will not be displayed.
4.6 Activation/disactivation of Overcooling function
• make sure that the keyboard is not locked and that no other opera-
tion is in progress, that defrosting and/or dripping is not in progress
and that the evaporator fan is off (the last two but EVX201)
• press and hold down the UP key for 4 sec: the Overcooling LED will
light up.
During the Overcooling function the working setpoint 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.
4.7 Manual Activation of Defrosting
• make sure that the keyboard is not locked and that no other opera-
tion is in progress; ensure that the Overcooling function is not in
progress
• press and hold down the DEFROSTING key for 4 sec.
For EVX203, EVX204, EVX214, EVX205 and EVX215:
If the evaporator probe function is that of the defrosting probe (param-
eter 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.
4.8 Operation for low or high percentage of relative
humidity (but EVX201 and provided parameter F0 is
set to 5)
During operation for low percentage of relative humidity, the evapo-
rator ventilator will be switched on if the compressor is switched off
(parameter F4 determines the amount of time it is switched off while
parameter F5 determines the amount of time it is switched on).
During operation for a high percentage of relative humidity the evapo-
rator fan is always on.
Evco S.p.A. • Code 104X201E314 • page 2/8
4.8.1 Manual activation of operation for low or high
percentage of relative humidity (but EVX201 and
provided parameter F0 is set to 5)
• make sure that the keyboard is not locked and that no other proce-
dures are in progress
• press the SET and the UP keys for 4 sec: the display will show “rhL”
(operation for low percentage of relative humidity) or “rhH” (opera-
tion for high percentage of relative humidity) for 10 sec.
To restore the normal display before the operation is complete:
• press a key.
Activation of the operation for a low or high percentage of relative
humidity can be done using parameter F6.
If parameter F0 is not set to 5, pressing the SET and the UP keys will
cause the display of the following message “- - - -“ for
1 sec.
4.8.2 Display of type of operation in progress (for low or
high percentage of relative humidity, but EVX201
and provided that parameter F0 is set to 5)
• make sure that no other procedure is in progress
• press and release the SET and the UP keys: the display will show
“rhL” (operation for low percentage of relative humidity) or “rhH”
(operation for high percentage of relative humidity) for 10 sec.
To restore the normal display before the operation is complete:
• press a key.
If parameter F0 is not set to 5, pressing the SET and UP keys will cause:
• the display of the message “- - - -“ for 1 sec if the keyboard is not
locked
• display of the label “Loc” for 1 sec if the keyboard is locked..
4.9 Manual switching on/off of the cell light (EVX204,
EVX214, EVX205 and EVX215 only and provided
that parameter u1 and/or parameter u11 is set to 0)
• make sure that no other procedure is in progress
• press and release the AUXILIARY key : the LED light will switch
on/off.
Using the door microswitch it is also possible to switch on/off the cell
light by remote; see also parameter u2.
If parameter u1 is set at 0 (i.e. the utility managed by the fourth output
is the cabinet light) and parameter u11 is set at 2 (i.e. the utility managed
by the fifth output is the auxiliary output), holding the AUXILIARY
key down for 2 s will cause the switch-on/off of the multipurpose LED
and of the auxiliary output.
4.10 Switching on the demisting resistors (EVX204,
EVX214, EVX205 and EVX215 only and provided
that parameter u1 and/or parameter u11 is set to 1)
• ensure that the instrument is switched on and that no other proce-
dure is in progress.
• press the AUXILIARY key for 2 sec: the multifunction 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 permitted (that is,
before the time established with parameter u6 expires).
4.11
Manually switch on/off of the Auxiliary output
(EVX204, EVX21
4, EVX205 and EVX215
only and
provided parameter u1 and/or parameter u11 is set
to 2)
• ensure that the keyboard is not locked and that no other procedure
is in progress
• press and release the AUXILIARY key.
Using the multifunction input it is also possible to remotely switch on/
off the auxiliary output.
If parameter u1 is set at 2 (i.e. the utility managed by the fourth output
is the auxiliary output) and parameter u11 is set at 0 (i.e. the utility
managed by the fifth output is the cabinet light), holding the
AUXILIARY key down for 2 s will cause the switch-on/off of the
cabinet light LED and of the cabinet light.
If the auxiliary output has been switched on manually, then it can also
be switched off manually (similarly, if the auxiliary output has been
remotely switched on, then it can only be switched off in the same
manner); see also parameter u2.
4.12
Energy Saving (but EVX201)
During function Energy Saving the working setpoint is increased of
the temperature you have set with parameter r4 and the evaporator
fan is turned on cyclically, on condition that parameter F0 has value
1 or 2 (parameter F13 sets the time the fan remains turned off and
parameter F14 the time it remains turned on).
Once the time you have set with parameter i10 has passed (without
activations of the door switch digital input and on condition that the
cabinet temperature has reached the working setpoint) function En-
ergy Saving is activated automatically (as long as the input will be
activated).
4.12.1 Activation/deactivation of function Energy Saving
with effect on the compressor only
EVX205 and EVX215
)
(EVX204, EVX21
Through the multipurpose input it is possible to activate/deactivate
function Energy Saving at a distance.
Function Energy Saving can be activated in real time too, to the time
you have set with parameter HE1; in this case the duratin of the func-
tion can be set through parameter HE2.
4.13 Locking/unlocking the keyboard
To lock the keyboard:
• make sure that no other procedure is in progress
• press and hold down the DOWN and ON/STAND-BY keys for 1
sec: the display will show the message “Loc” for 1 sec.
If the keyboard is locked, the following are not permitted:
• manual switch on/off of the instrument
• display of evaporator temperature (via the procedure explained in
paragraph 4.4)
• display of the condenser temperature (via the procedure indicated
in paragraph 4.5)
• activation/disactivation of Overcooling function
• manual activation of defrosting
• activation of operation for low of high percentage of relative humid-
ity and learning the kind of operation
• manual switch on/off of the auxiliary output
• see information regarding the HACCP alarms
• cancellation of HACCP alarm list
• changing the date and time
• changing the working setpoint (with the procedure described in
5.2)
• display of compressor operation hours
• cancellation of compressor operation hours
The operations cause the display of the label “Loc” per
1 sec.
To unlock the keyboard:
• press and hold down the DOWN and ON/STAND-BY keys for 1
sec: the display will show the message “UnL” for 1 sec.
4.13 Silencing the Buzzer
• ensure that no other procedure in is progress
• press a key (the first pressing of the key will not cause the effect asso-
ciated with that key).
For EVX204, EVX214, EVX205 and EVX215:
If parameter u1 and/or parameter u11 is set to 3 and parameter u4 is
set to 1, pressing the key will also disactivate the alarm output.
If parameter u9 is set to 0, the buzzer will not be activated.
5 SETTINGS
5.1 Setting the day and real time (EVX214 and EVX215
only)
• ensure that the keyboard is not locked and that no other procedures
are in progress
• press and hold down the DOWN key for 1 sec: the display will show
the first label available
• press and release the UP or DOWN key to select “rtc”.
To change the year:
• press and release the SET key: the display will show “yy” followed
by the last two numbers in the year and the clock LED will flash
• press and release the UP or DOWN key within 15 sec.
To change the month:
• press and release the SET key while changing the year: the display
will show “nn” followed by the two numbers of the month
• press and release the UP or DOWN key within 15 sec.
To change the day of the month:
• press and release the SET key while changing the month: the dis-
play will show “dd” followed by the two numbers of the day
• press and release the UP or DOWN key within 15 sec.
To change the hour:
• press and release the SET key while changing the day of the month:
the display will show “hh” followed by the two numbers of the
hour
• press and release the UP or DOWN key within 15 sec.
The hour is displayed using the 24 hour system.
To change the minutes:
• press and release the SET key while changing the hour: the display
will show “nn” followed by the two minute numbers
• press and release the UP and DOWN keys within 15 sec
• press and release the SET key or do not operate for 15 sec: the clock
LED will switch off.
To exit the procedure:
• press and release the UP or DOWN key until the diplay shows the
cell temperature and then do not operate for 60 sec.
Alternatively:
• press and release the ON/STAND-BY key.
5.2 Setting the working setpoint
• ensure that the keyboard is not locked and that no other procedure
is in progress.
• press and release the SET key: the compressor LED will flash
• press and release the UP or DOWN key within 15 sec; see also
parameters r1, r2 and r3
• press and release the SET key or do not operate for 15 sec: the
compressor LED will switch off and then the instrument will exit the
procedure.
To exit the procedure before the operation is complete:
• do not operate for 15 sec (any changes will be saved).
The working setpoint can also be set via parameter SP.
5.3 Setting the configuration parameters
To begin the procedure:
4,
• ensure that no other procedure is in progress
• hold down the UP and DOWN keys for 4 sec: the display will show
“PA”
• press and release the SET key
• press and release the UP or DOWN key within 15 sec to set “-19”
• press and release the SET key or do not operate for 15 sec
• hold down the UP and DOWN keys for 4 sec: the display will show
“SP”.
To select a parameter:
• press and release the UP or DOWN key.
To change a parameter:
• press and release the SET key.
• press and release the UP or DOWN key within 15 sec.
• press and release the SET key or do not operate for 15 sec.
To exit the procedure:
• hold down the UP and DOWN keys for 4 sec and do not operate
for 60 sec (any changes will be saved).
After changing the parameters, suspend power supply flow
to the instrument.
5.4 Restoring the Manufacturer’s Settings
To begin the procedure:
• make sure that no other procedure is in progress.
• hold down the UP and DOWN key for 4 sec: the display will show
“PA”
• press and release the SET key
• press and release the UP or DOWN key within 15 sec to set “149”
• press and release the SET key or do not operate for 15 sec
• hold down the UP and DOWN keys for 4 sec: the display will show
“dEF”
• press and release the SET key
• press and release the UP or DOWN key within 15 sec to set “1”
• press and release the SET key or do not operate for 15 sec: the
display will show “dEF” flashing for 4 sec, after which the instru-
ment will exit the procedure.
• suspend the power supply to the instrument.
To exit the procedure before the operation is complete:
• hold down the UP and DOWN keys for 4 sec during the procedure
(that is, before setting “1”: the settings wil not be restored).
Make sure that the manufacturer’s settings are appropriate
(see chapter 12).
6 HACCP FUNCTION
6.1 Preliminary notes
EVX201, EVX203, EVX204, EVX205 and EVX215:
The instrument is able to store up to 3 HACCP alarms.
The instrument provides the following inoformation:
• the critical value
• the alarm duration (from 1 min to 99 hours and 59 min, partial if the
alarm is in progress).
CODE ALARM TYPE (CRITICAL VALUE)
AL minimum temperature alarm (the minium cell tempera-
ture during any alarm of this type)
AH maximum temperature alarm (the maximum cell tempera-
ture during any alarm of this type)
id door microswitch input alarm (the maximum cell tempera-
ture during any alarm of this type; see also parameter i4
Important Notes:
• the codes are displayed in the order shown in the table
• the instrument stores the minimum and maximum tem-
perature alarms provided the temperature associated
with the alarm is that of the cell (parameter A0 = 0)
• the instrument updates the information regarding the
the alarm provided the critical value of the new alarm is
more critical than that stored alarm or provided the infor-
mation has already been displayed.
• if the instrument is switched off, no alarms will be stored.
When the problem that caused the alarm disappears, the display is
restored to normal operation.
The HACCP LED provides information regarding the HACCP alarm
storage status; see paragraph 8.1.
For EVX214 and EVX215:
The instrument is able to store up to 9 HACCP alarms, after which the
most recent alarm will substitute the oldest.
The instrument provides the following information:
• critical value
• the date and time the alarm was signaled
• the duration of the alarm (from 1 min to 99 hours and 59 min, partial
if the alarm is in progress).
CODE ALARM TYPE (CRITICAL VALUE)
AL minimum temperature alarm (the minimum temperature
of the cell during the alarm)
AH maximum temperature alarm (the maximum temperature
of the cell during the alarm)
id door microswitch input alarm (the maximum tempera-
ture of the cell during the alarm); see also parameter i4
PF power supply interruption alarm (cell temperature when
power is restored); see also parameters A10 and A12
Notes:
• the instrument stores the minimum and maximum tem-
perature alarm provided the temperature associated with
the alarm is that of the cell (parameter A0 = 0)
• to avoid repeatedly storing alarms due to interruptions
in the power supply, disconnect the power when the
instrument is switched off
• if the duration of the power supply interruption alarm is
long enough to cause a clock error (code “rtc”), the instru-
ment will not provide any information about the alarm
duration
• if the instrument is switched off no alarms will be stored
When the problem that caused the alarm disappears, the display is
restored to normal operation, with the exception of the power supply
interruption alarm (code “PF”) which requires manual restoration of
the normal display.
Evco S.p.A. • Code 104X201E314 • page 3/8
To manually restore the normal display:
• press a key.
If parameter u1 and/or parameter u11 is set to 3, pressing the key will
disactivate the alarm output.
The HACCP LED provides information regarding the storage status of
the alarms; see paragraph 8.1.
6.2 Display of HACCP alarm information
For EVX201, EVX203, EVX204, EVX205 and EVX215:
To start the procedure:
• ensure that the keyboard is not locked and that no other procedure
is in progress
• hold down the DOWN key for 1 sec: the display will show the first
label available
• press and release the UP or DOWN key to select “LS”
• press and release the SET key: the display will show one of the codes
included in the table in paragraph 6.1.
To select an alarm:
• press and release the UP or DOWN key (to select, for example, “AH”).
To view the information about the alarm:
• press and release the SET key: the HACCP LED will stop flashing and
remain permanently on and the display will show the following
sequence of information (for example):
INFO. MEANING
8.0 the critical value is 8.0 °C/8 °F
dur the display is about to show the duration of the alarm
h01 the alarm has been going off for 1 hour (data continues ...)
n15 the alarm lasted for 1 hour and 15 min
AH the alarm selected
The display shows each message for 1 sec.
To exit the sequence of information:
• press and release the ON/STAND-BY key: the display will show the
alarm selected (in the example “AH”).
To exit the procedure:
• exit the sequence of information
• press and release the UP or DOWN key until the display shows the
cell temperature and then do not operate for 60 sec.
Alternatively:
• exit the sequence of information.
• press and release the ON/STAND-BY key.
If the instrument does not have any alarms stored, the label “LS” will
not be displayed.
For EVX214 and EVX215:
To start the procedure:
• ensure that the keyboard is not locked and that no other operation
is in progress
• hold down the DOWN key for 1 sec: the display will show the first
label available
• press and release the UP or DOWN key to select “LS”
• press and release the SET key: the display will show the most recent
alarm code (or rather, one of the codes shown in the table in para-
graph 6.1) followed by the number “1”; the larger the number is that
follows the alarm code, the older the alarm is).
To select an alarm:
• press and release the UP or DOWN key (to select, for example, “AH3”).
To see information regarding the alarm:
• press and release the SET key: the HACCP LED will stop flashing and
will remain permanently on and the display will show the following
sequence of information (for example):
INFO. MEANING
8.0 the critical value is 8.0 °C/8 °F
StA the display is about to show the date and hour in which
the alarm was signaled
y09 the alarm was signaled in 2009 (data continues ...)
n03 the alarm was signaled in March (data continues ...)
d26 the alarm was signaled on the 26th of March 2009
h16 the alarm was signaled at 16:00 (other data continues)
n30 the alarm was signaled at 16:30
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
AH3 the alarm selected
The display will show each message for 1 sec.
To exit the information sequence:
• press and release the ON/STAND-BY key: the display will show the
selected alarm (“AH3” in the example).
To exit the procedure:
• exit the information sequence
• press and release the UP or DOWN key until the display shows the
cell temperature or do not operate for 60 sec.
Alternatively:
• exit the information sequence
• press and release the ON/STAND-BY key.
If the instrument does not have any alarms stored, the label “LS” will
not be displayed.
6.3 Cancelling the HACCP alarm list
• ensure that the keyboard is not locked and that no other operation
is in progress
• hold down the DOWN key for 1 sec: the display will show the first
available label
• press and release the UP or DOWN key to select “rLS”
• press and release the SET key
• press and release the UP or DOWN key within 15 sec to set “149”
• press and release the SET key or do not operate for 15 sec: the
display will show a flashing “- - - -” for 4 sec and the HACCP LED will
switch off and then the instrument will exit the procedure.
If the instrument does not have any alarms stored, the label “rLS” will
not be displayed.
7 CALCULATING COMPRESSOR OPERATION HOURS
(but EVX201)
7.1 Preliminary notes
The instrument is able to store up to 9,999 hours of compressor op-
eration, after which the number “9999” starts flashing.
7.2 Display of Compressor Operation Hours
• make sure that the keyboard is not locked and that no other opera-
tion is in progress
• press and hold down the DOWN key for 1 sec: the display will show
the first available label
• press and release the UP or down DOWN key to select “CH”
• press and release the SET key.
To exit the procedure:
• press and release the SET key or do not operate for 60 sec
• press and release the UP or down DOWN key until the display
shows the cell temperature or do not operate for 60 sec.
Alternatively:
• press and release the ON/STAND-BY key.
7.3 Cancelling Compressor Operation Hours
• Make sure that the keyboard is not locked and that no other proce-
dure is in progress
• press and hold down the DOWN key for 1 sec: the display will show
the first available label
• press and release the UP or DOWN key to select “rCH”
• press and release the SET key
• press and release the UP or DOWN key within 15 sec to set “149”
• press and release the SET key or do not operate for 15 sec: the
display will show a flashing “- - - -” for 4 sec then the instrument will
exit the procedure.
8 WARNING LIGHTS AND DIRECTIONS
8.1 Warning lights
LED MEANING
compressor LED light
if the LED is on, then the compressor is on
if the LED is flashing:
• the working setpoint is in the process of being changed
(via the procedure described in paragraph 5.2)
• compressor protection operation in progress:
- parameters C0, C1, C2
- parameter i7 (EVX204, EVX214, EVX205 and EVX215
only)
Defrost LED
If it is on:
• defrosting is in progress
if it is flashing:
• predripping in progress:
- parameter d16 (but EVX201)
• defrosting required but a compresser protection opera-
tion is in progress:
- parameters C0, C1 and C2 (but EVX201)
• dripping in progress:
- parameter d7 (but EVX201)
• heating of coolant liquid in progress:
- parameter d15 (but EVX201)
Evaporator fan LED light
If it is on, the evaporator fan is on (but EVX201)
If it is flashing, the evaporator fan is disactivated
- parameter F3 (but EVX201)
Cell light LED
If it is on, the cell light has been switched on manually
(EVX204, EVX214, EVX205 and EVX215 only and provided
that parameter u1 and/or parameter u11 is set to 0)
if it is flashing, the cell light has been switched on by re-
mote:
- parameter i0 (EVX204, EVX214, EVX205 and EVX215
only and provided that parameter u1 and/or parameter
u11 is set to 0)
Multifunction LED light
If it is on:
• the demisting resistors are switched on (EVX204, EVX214,
EVX205 and EVX215 only and provided that parameter
u1 and/or parameter u11 is set to 1)
• the auxiliary output has been manually switched on
(
EVX204, EVX214, EVX205 and EVX215 only
vided that parameter
u1 and/or parameter u11
and pro-
is set to 2)
• the door resistors will be switched on (EVX204, EVX214,
EVX205 and EVX215 only and provided that parameter
u1 and/or parameter u11 is set to 4)
• the evaporator valve will be switched on (EVX204,
EVX214, EVX205 and EVX215 only and provided that
parameter u1 and/or parameter u11 is set to 5)
• the condenser fan will be switched on (EVX204, EVX214,
EVX205 and EVX215 only and provided that parameter
u1 and/or parameter u11 is set to 6)
if it is flashing:
• the auxiliary output has been switched on remotely:
- parameter i5 (EVX204, EVX214, EVX205 and EVX215
only and provided that parameter u1 and/or parameter
u11 is set to 2)
• a delay in switching off the condenser fan is in progress:
- parameter F12 (EVX204, EVX214, EVX205 and EVX215
only and provided that parameter u1 and/or parameter
u11 is set to 6)
Clock LED
if flashing, the day and real time are in the process of being
changed (EVX214 and EVX215 only)
HACCP HACCP LED
if it is on, all information regarding HACCP alarms has not
been displayed
if it is flashing, the instrument has stored at least one new
HACCP alarm
if it is off, all information regarding the HACCP alarms has
been displayed or the list of HACCP alarms has been can-
celled
Energy Saving LED
if it is on, the Energy Saving function is running (but EVX201)
- parameters r4, F13, F14, i5, i10, HE1 and HE2
maintenance LED
if on, compressor maintenance is required (but EVX201):
- parameter C10
Overcooling LED
if on, the Overcooling function is on progress
- parameters r5 and r6
Alarms LED
if on, an alarm or error is in progress
°C Celsius grade LED
if on, the temperatures will be displayed using the Celsius
grade unit of measurement:
- parameter P2
°F Fahrenheit grade LED
if on, the temperatures will be displayed using the Fahren-
heit grade unit of measurement:
- parameter P2
on/stand-by LED
if on, the instrument is in stand-by mode
8.2 Signal Descriptions/Explanations
CODE MEANING
rhL operation for a low percentage of relative humidity in
progress
rhH operation for a high percentage of relative humidity in
progress
Loc the keyboard is locked:
- see paragraph 4.13
the working setpoint is blocked:
- parameter r3
- - - - the operation requested is not available
9 ALARMS
9.1 Alarms
CODE MEANING
AL Minimum alarm temperatures (HACCP alarms)
Solutions:
• check the cell temperature (EVX201 only)
• check the temperature associated with the alarm (but
EVX201)
• refer to:
- parameters A1 and A2 (EVX201 only)
- see parameters A0, A1 and A2 (but EVX201)
Main consequences:
• the instrument will store the alarm (EVX201 only)
• if parameter A0 is set to 0, the instrument will store the
alarm (but EVX201)
• the alarm output will be activated (provided that param-
eter u1 and/or parameter u11 is set to 3)
AH Maximum temperature alarm (HACCP alarms)
Solutions:
• check the cell temperature
• refer to:
- parameters A4 and A5
Main consequences:
• the instrument will store the alarm
• the alarm output will be activated (provided that param-
eter u1 and/or parameter u11 is set to 3)
id Door microswitch input alarm (HACCP alarms)
Solutions:
• verify the cause of the input activation
• see parameters i0, i1 and i4
Main consequences:
• the effect established with parameter i0
• if parameter is set to 1, the instrument will store the alarm,
provided parameter i2 is not set to -1
•the alarm output will be activated (provided that param-
eter u1 and/or parameter u11 is set to 3)
PF Power supply interruption alarm (HACCP alarms; only
EVX214 and EVX215)
Solutions:
• verify the cause of the interruption in power supply
• parameters A10 and A12 are seen
Evco S.p.A. • Code 104X201E314 • page 4/8
• press a key to restore normal display
Main consequnces:
• if the power supply interruption lasts longer than the
time established with parameter A10, the instrument will
store the alarm
• the alarm output will be activated (provided that param-
eter u1 and/or parameter u11 is set to 3)
iA Multifunction input alarm (only EVX204, EVX214, EVX205
and EVX215)
Solutions:
• verify the cause of input activation
• parameters i5 and i6 are seen
Main consequences:
• the effect established with parameter i5
• the alarm output will be activated (provided that param-
eter u1 and/or parameter u11 is set to 3)
iSd Pressure switch alarm (only EVX204, EVX214, EVX205 and
EVX215)
Solutions:
• verify the cause of input activation
• parameters i5, i6, i7, i8 and i9 are seen
• switch off and re-start the instrument or suspend the
power supply
Main consequences:
• the regulators will switch off
• the alarm output will be activated (provided that param-
eter u1 and/or parameter u11 is set to 3)
COH Condenser overheated alarm (only EVX204, EVX214,
EVX205 and EVX215)
Solutions:
• check the temperature of the condenser
• parameter C6 is seen
Main consequences:
•the alarm output will be activated (provided that param-
eter u1 and/or parameter u11 is set to 3)
• if parameter u1 and/or parameter u11 is set to 6, the
condenser fan will be switched on
CSd Compressor blocked alarm (only EVX204, EVX214,
EVX205 and EVX215)
Solutions:
• check the condenser temperature
• parameter C7 seen
• switch off and re-start the instrument: if when the instru-
ment is switched back on, the temperature of the con-
denser is still higher than that established in parameter
C7, disconnect the power supply and clean the con-
denser
Main consequences:
• the compresser and the evaporator fan will be switched
off
• the alarm output will be activated (provided that param-
eter u1 and/or parameter u11 is set to 3)
dFd Defrosting alarm switched off because maximum time has
been reached (but EVX201)
Solutions:
• verify that the evaporator probe is intact
• see parameters d2, d3 and d11
• press a key to restore normal display
Main consequences:
• the instrument will continue to function normally
When the problem that caused the alarm disappears, the instrument
returns to normal function, with the exception of the following alarms:
• the power supply interruption alarm (code “PF”) which requires the
pressing of a key
• pressure switch alarm (code “iSd”) which requires the switching off
of the instrument or the temporary suspension of the power supply
• compressor blocked by condenser temperature alarm (code “CSd”)
which requires the switching off of the instrument or the temporary
suspension of the power supply
• Defrosting alarm swiched off because maximum time has been
reached (code “dFd”) which requires the pressing of a key.
10 ERRORS
10.1 Errors
CODE MEANING
Pr1 Cell probe error
Solutions:
• verify that the probe is a type NTC
• verify that the probe is intact
• verify the instrument-probe connection
• check the cell temperature
Main consequences:
• compressor activity will depend on parameters C4 and
C5
• the defroster will not be activated
• the alarm output will be activated (provided that param-
eter u1 and/or parameter u11 is set to 3)
• the door resistors will be switched off (EVX204, EVX214,
EVX205 and EVX215 only and provided parameter u1
and/or parameter u11 is set to 4)
•the evaporator valve will be disconnected (EVX204,
EVX214, EVX205 and EVX215 only and provided pa-
rameter u1 and/or parameter u11 is set to 5)
Pr2 Evaporator probe error (but EVX201)
Solutions:
• the same as the preceeding case but with respect to the
evaporator probe
Main consequences:
• if parameter P3 is set to 1, the defrosting period will last
for the amout of time set with parameter 3
• if parameter P3 is set to 1and parameter d8 is set to 2 or
to 3, the instrument will operate as if parameter d8 were
set to 0
• if parameter F0 is set to 3 or 4, the instrument will operate
as if the parameter were set to 2
• the alarm output will be activated (provided that param-
eter u1 and/or parameter u11 is set to 3)
Pr3 Condenser probe error (EVX204, EVX214, EVX205 and
EVX215 only)
Solutions:
• the same as the preceeding case but with respect to the
condenser probe
Main consequences:
• condenser overheated alarm (code “COH”) will not be
activated
• compressor blocked by condenser temperature alarm
(code “CSd”) will never be activated
• the alarm output will be activated (provided that param-
eter u1 and/or parameter u11 is set to 3)
• if parameter u1 and/or parameter u11 is set to 6, the
condenser fan will operate in parallel with the condenser
rtc Clock error (EVX214 and EVX215 only)
Solutions:
• re-set the day and real time
Main consequences:
• if parameter d8 is set to 4, the instrument will operate as
if the parameter were set to 0
• the HACCP function will not provide information regard-
ing the date and hour in which the alarm was signaled
• the Energy Saving function will not be available in real
time
• the alarm output will be activated (provided that param-
eter u1 and/or parameter u11 is set to 3)
When the problem that caused the alarm disappears, the instrument
returns to normal operation, with the exception of the clock error
(code “rtc”) which requires that the date and hour be set.
11 TECHNICAL DATA
11.1 Technical data
Case: without cover.
Frontal protection grade: IP 00.
Connections: 6.3 mm faston connectors (0.248 in, power and
outputs), screw terminal board (inputs), 6-outlet connector (serial port).
Operating temperature: from 0 to 55 °C (from 32 to 131 °F, 10 ...
90% relative humidity without condensaton).
Power: 230 VCA, 50/60 Hz or 115 VCA, 50/60 Hz.
Preservation of clock data in the absence of power (EVX214
and EVX215 only): 24 hr fully-charged battery.
Battery recharge time (EVX214 and EVX215 only): 2 min
without interruption (the battery is recharged by the instrument’s power
supply).
Alarm buzzers: upon request in EVX201 and EVX203; built-in for
EVX204, EVX214, EVX205 and EVX215).
EVX201measure inputs: 1 (cell probe) for NTC probe.
EVX203 measure inputs: 2 (cell probe and evaporator probe) for
the NTC probe.
EVX204, EVX214, EVX205 and EVX215 measure inputs: 3
(cell probe, evaporator probe and condenser probe) for NTC probe.
EVX201 and EVX203 digital inputs: 1 (door microswitch) for
normally open /normally closed contact (free contact,
5 V 1 mA).
EVX204, EVX214, EVX205 and EVX215 digital inputs: 2
(door microswitch and multifunction) for normally open/normally
closed contact (free contact, 5 V 1 mA).
Measurement field: from -40 to 105 °C (from -40 to 220 °F).
Resolution: 0.1 °C/1 °C/1 °F.
EVX201 digital outputs: 1 relay:
•compressor relay: 16 A res. @ 250
VCA (normally open contact);
30 A res. @ 250 VCA upon request.
The maximum load current allowed is 16 A.
EVX203 digital outputs: 3 relays:
• compressor relay: 16 A res. @ 250
VCA (normally open contact);
30 A res. @ 250 VCA upon request
• defrosting relay: 8 A res. @ 250 VCA
(exchange contact)
• evaporator fan relay: 8 A res. @ 250
VCA (normally open contact).
The maxium load current allowed is 16 A.
EVX204 and EVX214 digital outputs: 4 relays:
• compressor relay: 30 A res. @ 250
VCA (normally open contact)
• defrosting relay: 8 A res. @ 250 VCA
(exchange contact)
• evaporator fan relay: 8 A res. @ 250
VCA (normally open contact)
• fourth output relay: from 8 A res. @
250 VCA (normally open contact).
The maximum load current allowed is 16 A.
EVX205 and EVX215 digital outputs: 5 relays:
• compressor relay: 30 A res. @ 250
VCA (normally open contact)
• defrosting relay: 8 A res. @ 250 VCA
(exchange contact)
• evaporator fan relay: 8 A res. @ 250
VCA (normally open contact)
• fourth output relay: from 8 A res. @
250 VCA (normally open contact)
• fifth output relay: from 5 A res. @
250 VCA (normally open contact).
The maximum load current allowed is 16 A.
Serial port: port for communicating with the monitoring system (via
serial interface, via TTL, with a MODBUS communications protocol) or
via programming key.
PT • 06/11
Evco S.p.A. • Code 104X201E314 • page 5/8
12 WORKING SETPOINT AND CONFIGURATION PARAMETERS
12.1 Working setpoint
MIN. MAX. UM EVX201 EVX203 EVX204/5 EVX214/5
r1 r2 °C/°F (1) 2.0 -2.0 -18.0 -18.0
WORKING SETPOINT
working setpoint; see also r0
12.2 Configuration parameters
PAR. MIN. MAX. UM EVX201 EVX203 EVX204/5 EVX214/5
SP r1 r2 °C/°F (1) 2. 0 -2.0 -18.0 -18.0
PAR. MIN. MAX. UM EVX201 EVX203 EVX204/5 EVX214/5
CA1 -25.0 25.0 °C/°F (1) 0.0 0.0 0.0 0.0
CA2 -25.0 25.0 °C/°F (1) not avail. 0.0 0.0 0.0
CA3 -25.0 25.0 °C/°F (1) not avail.. not avail. 0.0 0 .0
P101- - - - 1111
WORKING SETPOINT
working setpoint; see also r0
MEASUREMENT INPUTS
offset cell probe
offset evaporator probe
offset condenser probe
Celsius degree decimal point (for size displayed during normal operation)
1 = YES
P201- - - - 0000
temperature unit of measurement (2)
0=°C
1=°F
P3 0 2 - - - - not avail. 1 1 1
evaporator probe function
0 = probe absent
1 = defrosting probe and probe for evaporator fan thermostatisation
2 = probe for evaporator fan thermostatisation
P4 0 1 - - - - not avail. not avail. 1 1
enabling of condenser probe
1 = YES
P80250ds 5555
PAR. MIN. MAX. UM EVX201 EVX203 EVX204/5 EVX214/5
r0 0.1 15.0 °C/°F (1) 2.0 2.0 2.0 2.0
r1 -99.0 r2 °C/°F (1) -50.0 -50.0 -50.0 -50.0
r2 r1 99.0 °C/°F (1) 50.0 50.0 50.0 50.0
r301- - - - 0000
delay in display of variations in temperature detected by the probes
MAIN REGULATOR
working setpoint differential
minimum working setpoint
maximum working setpoint
locking of working setpoint calibration (using the procedure described in paragraph 5.2)
1 = YES
r4 0.0 99.0 °C/°F (1) not avail. not avail. 0.0 0.0
r5 0.0 99.0 °C/°F (1) 0.0 0.0 0.0 0.0
r6 0 240 min 30 30 30 30
r7 0.0 99.0 °C/°F (1) not avail. 10.0 10.0 10.0
increase in temperature during Energy Saving function; see also i5, i10, HE1 and HE2
decrease in temperature during Overcooling function; see also r6
duration of Overcooling function; see also r5
minimum difference “cell temperature - working setpoint” (when the instrument switches on) such as to provoke the exclusion of the
consequent value of the evaporator temperature among the ones used for the calculation of the relative average (for the defrost activation;
only if d8 = 3); also look at d17 (3)
PAR. MIN. MAX. UM EVX201 EVX203 EVX204/5 EVX214/5
C00240min 0000
C10240min 5555
C20240min 3333
C30240sec 0000
C4 0 240 min 10 10 10 10
C5 0 240 min 10 10 10 10
C6 0.0 199.0 °C/°F (1) not avail. not avail. 80.0 80.0
C7 0.0 199.0 °C/°F (1) not avail. not avail. 90.0 90.0
C8 0 1 5 m in not avail. not avail. 1 1
C10 0 9.999 h r not avail. 0 0 0
COMPRESSROR PROTECTION SYSTEM
delay in switching on of compressor after the insturment switches on (3) minimum time between two consecutive compressor start-ups;
also delay in compressor start-up after conclusion of cell probe error (code “Pr1”) (4) (5)
minimum duration of compressor switch off time (4)
minimum duration of compressor switch on time
duration of compressor switch off during cell probe error (code “Pr1”); see also C5
duration of compressor switch on during cell probe error (code “Pr1”); see also C4
condenser temperature is higher than that at which the condenser overheating alarm is activated (code “COH”) (6)
condenser temperature is higher than the limit at which the compressor blocked alarm is activated (code “CSd”)
compressor alarm delay locked (code “CSd”) (7)
number of operating hours is higher than the limit at which the need for maintenance is signaled.
0 = function absent
PAR. MIN. MAX. UM EVX201 EVX203 EVX204/5 EVX214/5
d0099hr 8888
DEFROSTING
if d8 = 0, 1 or 2, defrosting interval (8)
0 = interval defrosting will never be activated
if d8 = 3, maximum defrost interval
d1 0 2 - - - - not avail. 0 0 0
type of defrosting
0=
1=
2=
d2 -99.0 99.0 °C/ °F (1) not avail. 2. 0 2.0 2. 0
d3 0 99 min 30 30 30 30
temperature at end of defrosting (only if P3 = 1); see also d3
se P3 = 0 or 2, defrosting duration
se P3 = 1, maximum defrosting duration; see also d2
0 = defrosting will not be activated
d401- - - - 0000
defrosting when instrument is switched on (only if d8 = 0, 1, 2 or 3) (3)
1 = YES
d5099min 0000
if d4 = 0, minimum time between switching on of instrument and activation of defrosting; see also i5 (3)
if d4 = 1, delay in activation of defrosting after instrument is switched on ; see also i5 (3)
d601- - - - 1111
temperature displayed during defrosting
0 = cell temperature
1 = if at the time of defrosting activation, the cell temperature is lower than the “working setpoint + r0”, at most “working
d7 0 1 5 m in not avail. 2 2 2
dripping duration (during dripping the compressor will remain switched off and the defrosting output will remain disactivated; if
d16 = 0, evaporator fan activity will depend on parameter F2; if d16 ≠ 0, the evaporator fan will remain switched off)
d804- - - - 0000
defrosting activation methods
0=
1=
2=
3=
4=IN REAL TIME - defrosting will be activated at the times established in parameters Hd1 ... Hd6 (visible in EVX214 and EVX215 only)
d9 -99.0 99.0 °C/ °F (1) not avail. 0. 0 0.0 0. 0
d1 1 0 1 - - - - not avail. 0 0 0
evaporator temperature is higher than that at which the defrost interval counter is suspended (only if d8 = 2)
defrosting alarm switches off once maximum time limit has been reached (code “dFd”; only if P3 = 1
and in absence of an evaporator probe (code “Pr2”)
1 = YES
d1 5 0 9 9 mi n not avail. 0 0 0
d1 6 0 9 9 mi n not avail. 0 0 0
minimum time that the compressor must be switched on before defrosting can be activated (only if d1 = 1) (11)
predripping duration (during predripping the compressor will remain switched off, the defrosting output will be activated and the
evaporator fan will remain switched off)
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
disactivated; evaporator fan activity will depend on parameter F2
setpoint + r0”; if at the time of defrosting activation, the cell temperature is higher than the “working setpoint + r0”,
at most the cell temperature when defrosting is activated
AT INTERVALS - defrosting will be activated once the instrument has altogether been running for time d0
AT INTERVALS - defrosting will be activated once the compressor has altogether been switched on for time d0
AT INTERVALS - defrosting will be activated once the evaporator temperature has altogether been below temperature d9 for time d0
(visible in EVX203, EVX204, EVX214, EVX205 and EVX215 only) (10)
ADAPTABLE - defrosting will be activated when one of the following conditions is present (visible in EVX203, EVX204, EVX214, EVX205
and EVX215 only; also look at d0) (10):
- condition 1: the evaporator temperature will be below temperature d22 and the compressor will altogether be
switched on for time d18
- condition 2: the evaporator temperature will fall below temperature d19
Evco S.p.A. • Code 104X201E314 • page 6/8
d1 7 1 10 - - - - not avail. 1 1 1
number of evaporator temperature values used for the calculation of the relative average (for the defrost activation; only if d8 = 3); also look
at r7, i11 and i12
d18 0 3,000 min not avail. 40 40 40
defrosting interval (only if d8 = 3 and for condition 1)
0 = defrosting for condition 1 will never be activated
d19 0.0 40.0 °C/°F (1) not avail. 3 .0 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 and for condition 2); also look at d17
d2 0 0 5 00 min not avail. 18 0 18 0 18 0
minimum consecutive time the compressor must be switched on such as to provoke the defrost activation
0 = the defrost will never be activated because the compressor has been switched on
d2 1 0 5 00 min not avail. 20 0 20 0 20 0
minimum consecutive time the compressor must be switched on after the insturment switches on (on condition that the difference “cell
temperature - working setpoint” is higher temperature r7) and after function Overcooling is activated such as to provoke the defrost
activation
0 = the defrost will never be activated because the compressor has been switched on
d22 0.0 10.0 °C/°F (1) not avail. 2 .0 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 and for condition 1); also look at d17
d23 0.0 10.0 °C/°F (1) not avail. 1 .0 1. 0 1.0
PAR. MIN. MAX. UM EVX201 EVX203 EVX204/5 EVX214/5
A0 0 1 - - - - not avail. 0 0 0
evaporator temperatures average increase during function Energy Saving (for defrost activation; only if d8 = 3); also look at d17
TEMPERATURE ALARMS
temperature associated with the minimum temperature alarm (code “AL”)
0 = cell temperature
1 = evaporator temperature (12)
A1 -99.0 99.0 °C/ °F (1) -10.0 -10.0 -10.0 -10.0
A202- - - - 1111
temperature below that at which the minimum temperature alarm is activated (code “AL”); see also A0, A2 and A11
type of minimum temperature alarm (code “AL”)
0 = alarm absent
1 = relative to working setpoint (that is “working setpoint - A1”; consider A1 without sign)
2 = absolute (that is A1)
A4 -99.0 99.0 °C/ °F (1) 10.0 10.0 10.0 10.0
A502- - - - 1111
temperature higher than that at which the maximum temperature alarm is activated (code “AH”); see also A5 and A11
type of maximum temperature alarm (code “AH”)
0 = alarm absent
1 = relative to working setpoint (that is “working setpoint + A4”; consider A1 without sign))
2 = absolute (that is A4)
A6 0 240 min 120 120 120 120
A7 0 240 min 15 15 15 15
A8 0 240 min 15 15 15 15
delay in maximum temperature alarm (code “AH”) after the instrument is switched on (3)
temperature alarm delay (code “AL” and code “AH”)
delay in maximum temperature alarm (code “AH”) following the conclusion of defrosting (in EVX201 only) and following the conclusion
of evaporator fan (in EVX203, EVX204, EVX214, EVX205 and EVX215 only) (13)
A9 0 240 min 15 15 15 15
A1 0 0 2 40 min not avail. not avail. not avail. 1
delay in maximum temperature alarm (code “AH”) following the disactivation of the door microswitch input (14)
duration of interruption in the power supply that occurs when the instrument has been running for long enough to cause the storage of
the power interruption alarm when the power supply is restored. (code “PF”) (15)
A11 0.1 15.0 °C/°F (1) 2.0 2.0 2.0 2.0
A1 2 0 2 - - - - not avail. not avail. not avail. 1
differential of parameters A1and A4
kind of signal for power interruption alarm (code “PF”); also look at A10
0 = the alarm will not be signalled
1 = the display will show the code “PF” flashing and the buzzer will be activated
2 = the display will show the code “PF” flashing and the buzzer will be activated (this last on condition that the power interruption duration
PAR. MIN. MAX. UM EVX201 EVX203 EVX204/5 EVX214/5
F0 0 5 - - - - not avail. 1 1 1
EVAPORTOR FAN
evaporator fan activity during normal operation
0 = switched off
1 = switched on; see also F13, F14 and i10
2 = in parallel with the compressor; see also F9, F13, F14 and i10
3 = dependent on F1 (16)
4 = switched off if the compressor is switched off, dependent on F1 if the compressor is switched on; see also F9 (16)
5 = dependent on F6; see also F9
F1 -99.0 99.0 °C/°F (1) not avail. -1.0 -1.0 -1.0
F2 0 2 - - - - not avail. 0 0 0
evaporator temperature above the limit at which the evaporator fan is switched off (only if F0 = 3 or 4); see also F8
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 1 5 m in not avail. 2 2 2
maximum duration of evaporator fan disactivation; see also F7 (during evaporator fan desactivation the compressor can be switched on,
the defrosting output will remain disactivated and the evaporator fan will remain switched off)
F4 0 2 40 sec not avail. 6 0 60 6 0
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 2 40 sec not avail. 1 0 10 1 0
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 - - - - not avail. 0 0 0
operation for low or high percentage of relative humidity (only if F0 = 5) (17)
0=
1=HIGH RELATIVE HUMIDITY - the evaporator fan will always be switched on
F7 -99.0 99.0 °C/°F (1) not avail. 5 .0 5. 0 5.0
evaporator temperature below limit at which the evaporator fan is disactivated (relative to working setpoint, that is “working setpoint + F7”);
see also F3
F8 0.1 15.0 °C/°F (1) not avail. 2 .0 2. 0 2.0
F9 0 2 40 sec not avail. not avail. 0 0
F11 0.0 99.0 °C/°F (1) not avail. not avail. 15.0 15.0
parameter F1differential
delay in the switching off of evaporator fan following the switching off of the compressor (only if F0 = 2, 4 and 5)
condenser temperature above that at which the condenser fan is switched on (“F11 + 2.0 °C/4 °F, only if u1 and/or u11 = 6 and provided
the compressor is switched on); see also F12 (18)
F12 0 24 0 sec not avail. not avail. 3 0 3 0
F13 0 24 0 m in not avail. 5 5 5
F14 0 24 0 m in not avail. 5 5 5
PAR. MIN. MAX. UM EVX201 EVX203 EVX204/5 EVX214/5
i005- - - - 1233
delay in switching off of the condenser fan following the switching off of the condenser (only if u1 and/or u11 = 6); see also F11
time the evaporator fan remains turned off during function Energy Saving; see also F14 and i10 (only if F0 = 1 or 2)
time the evaporator fan remains turned on during function Energy Saving; see also F13 and i10 (only if F0 = 1 or 2)
DIGITAL INPUTS
effect caused by the activation of the door microswitch input; see also i4
0 = no effect
1 = the compressor and evaporator fan (evaporator fan in EVX203, EVX204, EVX214, EVX205 and EVX215 only) will be switched off (at
2 = the evaporator fan will be switched off (at most for time i3 or until the input is disactivated) (visible in EVX203, EVX204, EVX214, EVX205
3 = the cell light will be switched on (only if u1 and/or u11 = 0, until the input is disactivated) (only visible in EVX204, EVX214, EVX205
4 = the compressor and evaporator fan will be switched off (at most for time i3 or until the input is disactivated) and the cell light will be
5 = the evaporator fan will be switched off (at most until time i3 or until the input has been disactivated) and the cell light will be switched
i101- - - - 0000
type of door microswitch input contact
0 = normally open (active input with closed contact)
1 = normally closed (active input with open contact)
i2 -1 120 min 30 30 30 30
delay in signaling of door microswitch input alarm (code “id”)
-1 = the alarm will not be signaled
is higher than time A10)
LOW RELATIVE HUMIDITY - the evaporator fan will operate in parallel with the compressor; see also F4 and F5
most for time i3 or until the input is disactivated (19)
and EVX215 only)
and EVX215)
switched on (only if u1 and/or u11 = 0, until the input is disactivated) (only visible in EVX204, EVX214, EVX205 and EVX215) (19)
on (only if u1 and/or u11 = 0, until the input is disactivated) (only visible in EVX204, EVX214, EVX205 and EVX215)
Evco S.p.A. • Code 104X201E314 • page 7/8
i3 -1 120 min 15 15 15 15
maximum duration of the effect caused by activation of the door microswitch on the compressor and the evaporator fan (the evaporator
fan in EVX203, EVX204, EVX214, EVX205 and EVX215 only)
-1 = the effect will last until the input is disactivated
i401- - - - 0000
storage of door microswitch input alarm (code “id”) (20)
1 = YES
i5 0 6 - - - - not avail. not avail. 2 2
effect caused by the activation of the multifunction input
0 = no effect
1=
2=
3=
4=
5=
6=SWITCHING OFF THE INSTRUMENT - the instrument will be switched off (until the input is disactivated)
i6 0 1 - - - - not avail. not avail. 0 0
type of mutlifunction input contact
0 = normally open (active input with closed contact)
1 = normally closed (active input with open contact)
i7 0 1 20 min not avail. not avail. 0 0
if i5 = 3, multifunction input alarm delay (code “iA”)
if i5 = 4, delay in compressor switching on after the disactivation of the multifunction input (21)
i8 0 1 5 - - - - not avail. not avail. 0 0
number of multifunction input alarms (code “iA”) such to cause a pressure switch alarm (code “iSd”) (if i5 = 4)
0 = alarm absent
i9 1 9 99 min not avail. not avail. 240 2 40
i1 0 0 9 99 mi n not avail. 0 0 0
time that must pass in absence of mutlifunction output alarms (code “iA”) so that the alarm counter is reset (only if i5 = 4)
time without activations of the door switch input (on condition that the cabinet temperature has reached the working setpoint) in order
that function Energy Saving is activated automatically (it has effect on the evaporator fan only if F0 = 1 or 2)
0 = the function will never automatically be activated
i1 1 0 2 40 s not avail. 1 5 15 1 5
minimum time the door switch input must be activated such as to provoke the exclusion of the consequent value of the evaporator
temperature among the ones used for the calculation of the relative average (for the defrost activation; only if d8 = 3); also look at d17
i1 2 0 2 40 s not avail. 6 0 60 6 0
minimum time the door switch input must be activated altogether such as to provoke the exclusion of the consequent value of the
evaporator temperature among the ones used for the calculation of the relative average (for the defrost activation; only if d8 = 3); also look
at d17
i1 3 0 24 0 - - - - not avail. 18 0 1 80 180
number of door switch input activations such as to provoke the defrost activation
0 = the defrost will never be activated because of the door switch input activation
i1 4 0 2 40 mi n not avail. 3 2 3 2 3 2
minimum duration of the door switch imput activation such as to provoke the defrost activation
0 = the defrost will never be activated because of the door switch input activation
PAR. MIN. MAX. UM EVX201 EVX203 EVX204/5 EVX214/5
u1 0 6 - - - - not avail. not avail. 0 0
DIGITAL OUTPUTS
operation controlled by fourth output (22)
0=
1=
2=
3=
4=
5=
6=CONDENSER FAN - in this case parameters P4, F11 and F12 will be activated
u2 0 1 - - - - not avail. not avail. 0 0
enabling of manual switch on/switch off of the cell light or the auxiliary output when the instrument is switched off
(only if u1 and/or u11 = 0 or 2) (23)
1 = YES
u4 0 1 - - - - not avail. not avail. 1 1
enabling of alarm output disactivation with the silencing of the buzzer (only if u1 and/or u11 = 3)
1 = YES
u5 -99.0 99.0 °C/°F (1) not avail. not avail. -1.0 -1.0
u6 1 1 20 min not avail. not avail. 5 5
u7 0.0 99.0 °C/°F (1) not avail. not avail. 2. 0 2.0
cell temperature below that at which the door resistors are switched on (“u5 - 2.0 °C/4 °F, only if u1 and/or u11 = 4) (6)
operating time of demistor resistors (only if u1 and/or u11 = 1)
cell temperature below that at which the evaporator valve is disactivated (relating to the working setpoint, that is “working setpoint + u7”)
(only if u1 and/or u11 = 5) (6)
u8 0 1 - - - - not avail. not avail. 0 0
type of evaporator valve contact (only if u1 and/or u11 = 5)
0 = normally open (valve active with contact closed)
1 = normally closed (valve active with contact open)
u901- - - - 1111
enabling of buzzer
1 = YES
u1 1 0 6 - - - - not avail. not avail. 3 3
operation controlled by fifth output (22)
0=
1=
2=
3=
4=
5=
6=CONDENSER FAN - in this case parameters P4, F11 and F12 will be activated
PAR. MIN. MAX. UM EVX201 EVX203 EVX204/5 EVX214/5
HE1 00:00 23:59 hr:min not avail. not avail. 00:00 00:00
HE2 00:00 23:59 hr:min not avail. not avail. 00:00 00:00
ENERGY SAVING IN REAL TIME
time of activation of the Energy Saving in real time function; see also r4 and HE2
duration of the Energy Saving in real time function; see also r4 and HE1
00:00= the Energy Saving in real time function will not be activated
PAR. MIN. MAX. UM EVX201 EVX203 EVX204/5 EVX214/5
Hd1 00:00 23:59 hr:min not avail. not avail. - - : - - - - : - -
DEFROSTING IN REAL TIME
time of activation of first defrosting period in real time (only if d8 = 4)
- - : - - = the first defrosting in real time will not be activated
Hd2 00:00 23:59 hr:min not avail. not avail. - - : - - - - : - -
time of activation of second defrosting period in real time (only if d8 = 4)
- - : - - = the second defrosting in real time will not be activated
Hd3 00:00 23:59 hr:min not avail. not avail. - - : - - - - : - -
time of activation of third defrosting period in real time (only if d8 = 4)
- - : - - = the third defrosting in real time will not be activated
Hd4 00:00 23:59 hr:min not avail. not avail. - - : - - - - : - -
time of activation of fourth defrosting period in real time (only if d8 = 4)
- - : - - = the fourth defrosting in real time will not be activated
Hd5 00:00 23:59 hr:min not avail. not avail. - - : - - - - : - -
time of activation of fifth defrosting period in real time (only if d8 = 4)
- - : - - = the fifth defrosting in real time will not be activated
Hd6 00:00 23:59 hr:min not avail. not avail. - - : - - - - : - -
time of activation of sixth defrosting period in real time (only if d8 = 4)
- - : - - = the sixth defrosting in real time will not be activated
PAR. MIN. MAX. UM EVX201 EVX203 EVX204/5 EVX214/5
LA 1 247 - - - - 247 247 247 247
Lb03- - - - 2222
LP02- - - - 2222
SERIAL NETWORK (MODBUS)
instrument address
baud rate (0 = 2,400 baud, 1 = 4,800 baud, 2 = 9,600 baud, 3 = 19,200 baud)
parity (0 = none, 1 = odd, 2 = even)
SYNCHRONISATION OF DEFROSTING PERIODS - once time d5 has passed defrosting will be activated
ACTIVATION OF ENERGY SAVING FUNCTION - the Energy Saving function will be activated (until the input is disactived), provided the
Overcooling function is running; see also r4
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 disactivated)
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 disactivated): 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 disactivated and the instrument is switched off and re-started or until the power supply is interrupted); see also i7 and i9
SWTICHING ON THE AUXILIARY OUTPUT - the auxiliary output will be switched on (only if u1 and/or u11 = 2, until the input is
disactivated)
CELL LIGHT - in this case the AUXILIARY key and parameters i0 and u2 will be activated
DEMISTER RESISTORS - in this case the AUXILIARY key and parameter u6 will be activated
AUXILIARY OUTPUT - in this case the AUXILIARY key and parameters i5 and u2 will be activated
ALARM OUTPUTS - in this case parameter u4 will be activated
DOOR RESISTORS - in this case parameter u5 will be activated
EVAPORATOR VALVE - in this case parameters u7 and u8 will be activated
CELL LIGHT - in this case the AUXILIARY key and parameters i0 and u2 will be activated
DEMISTER RESISTORS - in this case the AUXILIARY key and parameter u6 will be activated
AUXILIARY OUTPUT - in this case the AUXILIARY key and parameters i5 and u2 will be activated
ALARM OUTPUTS - in this case parameter u4 will be activated
DOOR RESISTORS - in this case parameter u5 will be activated
EVAPORATOR VALVE - in this case parameters u7 and u8 will be activated
Evco S.p.A. • Code 104X201E314 • page 8/8
(1) the unit of measurement depends on P2
(2) Properly set the parameters corresponding to the regulators after modifying parameter P2
(3) the parameter has effect even after an interruption in the power supply that occurs while the instrument is switched on
(4) the time established with the parameter is counted even when the instrument is switched off
(5) if parameter C1 is set to 0, the delay after the end of the cell probe error will be 2 min
(6) the parameter differential is 2.0 °C/4 °F
(7) if when the instrument is switched on, the condenser temperature is already above that established in parameter C7, then parameter C8 will not have effect
(8) the instrument stores the defroster interval count every 30 min; the modification of parameter d0 takes effect following the end of the preceeding interval or following the activation of manual defrosting.
(9) the display returns to normal operation when, at the end of defrosting (EVX201 only) or at the end of evaporator fan disactivation (in EVX203, EVX204, EVX214, EVX205 and EVX215 only), the cell temperature falls
below that at which the display was initally blocked (or if a temperature alarm is signaled)
(10) if parameter P3 is set to 0 or 2, the instrument will function as if parameter d8 were set to 0
(11) if when defrosting is activated, the operating duration of the compressor is less than the time established with parameter d5, the compressor will remain on for the amount of time necessary to compelete defrosting.
(12) if parameter P3 is set to 0, the instrument will function as if parameter A0 were set to 0 but it will not store the alarm
(13) during defrosting and dripping and when the evaporator fan is stopped, the temperature alarms are absent, provided that these were signaled after the activation of defrosting
(14) during activation of the door microswitch input, the maximum temperature alarm is absent, provided the alarm was signaled after the activation of the input
(15) when power is restored, the alarm will always be signaled
(16) if parameter P3 is set to 0, the instrument will function as if parameter F0 were set to 2
(17) the parameter can also be modified using the procedure described in paragraph 4.8
(18) if parameter P4 is set to 0, the condenser fan will function in parallel with the compressor
(19) the compressor is switched off 10 sec after the activation of the input; if the input is activated during defrosting or when the evaporator fan is disactived, the activation will not have any effect on the compressor
(20) the instrument stores the alarm once the time established in parameter i2 has expired; if parameter i2 is set to -1, the instrument will not store the alarm
(21) make sure that the time established with parameter i7 is less than that established with parameter i9
(22) to avoid damaging the unit connected to the instrument, change the parameter setting when the instrument is switched off
(23) if parameter u2 is set to 0, switching off the instrument may cause the cell light and/or the auxiliary output to switch off (the next time the instrument is switched on the unit connected will remain switched off);
if parameter u2 is set to 1, switching off the instrument will not cause the cell light and/or the auxiliary output to switch off (the next time the instrument is switched on the unit connected will remain switched on).
13 ELECTRIC CONNECTION
13.1 Preliminary notes
With reference to the electrical wiring diagrams:
• the unit connected to and operated by the fourth outpt depends on parameter u1 (EVX204, EVX214, EVX205 and EVX215 only)
• the unit connected to and operated by the fifth outpt depends on parameter u11 (EVX205 and EVX215 only)
• the serial port is the port for communicating with the monitoring system (via serial interface, via TTL, MODBUS communications protocol) or by programming key ;
the port must not be used for two different purposes
simultaneously.
13.2 EVX201 electrical wiring
13.3 EVX203 electrical wiring
13.4 EVX204, EVX214, EVX205 and EVX215 electrical wiring
13.5 Electrical wiring warnings
• do not use electric or pneumatic screwers on the terminal boards
• if the instrument was brought from a cold place to a hot one, humidity may condense inside the instrument; wait approximately one hour before switching on the power
• make sure that the power tension, frequency, and the electric operating power of the instrument are compatible with the those of the local power voltage
• disconnect the power before performing any type of maintenance operation
• do not use the instrument as a safety device
• for information about the instrument and repairs contact a member of the Evco sales network
EVCO S.p.A. This document belongs to Evco; unless you are authorized by Evco, you can not publish this document.
Via Mezzaterra 6, 32036 Sedico Belluno ITALY Evco does not take any responsibility about features, technical data and possible mistakes related in this document.
Phone +39-0437-852468 • Fax +39-0437-83648 Evco does not take any responsibility about damages coming by the non-observance of additional information.
info@evco.it • www.evco.it Evco reserves the right to make any change without prior notice and at any time without prejudice the basic safety and operating features.
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