EVCO EVXV215N7 - Manual

EVCO S.p.A. • Code 104X201E314 • page 1/9
EVXVV Series
Digital Controllers for Static and Ventilated Refrigeration Display Cabinets
version 1.0
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.
3 DIMENSIONS AND INSTALLATION
3.1 Dimensions
The dimensions are expressed in mm (in).
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).
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 EVXV204, EVXV214, EVXV205 and EVXV215:
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 EVXV201)
• 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 (EVXV204, EVXV214,
EVXV205 and EVXV215 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 EVXV201)
• 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.
2 INTRODUCTION
2.1 Introduction
EVXVV is a new range of digital controllers for the operation of static
and ventilated refrigerating cabinets.
The series is composed of the following models:
• EVXVV201 - for the operation of static refrigerated cabinets, with
simple HACCP function
• EVXV203, EVXV204 and EVXV205 - for the operation of ventilated
refrigerated cabinets, with simple HACCP function
• EVXV214 and EVXV215 - for the operation of ventilated refrigerated
cabinets, with timer, advanced HACCP function and an Energy Sav-
ing function.
EVXV201 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.
EVXV203 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.
EVXV204 and EVXV205 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 EVXV205) 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.
EVXV214 and EVXV215 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 EVXV215) 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).
3.2 Installation
Back panel installation using M3 studs.
3.3 Installation notes
• make sure that the working conditions (operating temperature,
humidity, etc.) fall within the limits inidcated in the technical specifi-
cations
• do not install the device near heat sources (resistors, hot air ducts,
ect.), near devices with strong magneti (large diffusors etc.) and
places subject to direct sunlight, rain, humidity, excessive dust, me-
chanical vibrations or shaking
• in accordance with laws on safety, protection against possible con-
tact with electrical parts must be ensured via the correct 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.