Evco S.p.A. • Code 104X201E314 • page 1/8 |
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EVX Series Digital Controllers for Static and Ventilated Refrigeration Display Cabinets |
version 3.02 |
EN ENGLISH
1 IMPORTANT
1.1Important
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
2.1Introduction
EVX is a new range of digital controllers for the operation of static and |
EVX214 and EVX215 are equipped with: |
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ventilated refrigerating cabinets. |
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• Real Time Clock |
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The series is composed of the following models: |
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• 3 measure inputs (cell probe, evaporator probe and condenser |
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• EVX201 - for the operation of static refrigerated cabinets, with simple |
probe) for NTC probes |
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HACCP function |
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• 2 digital inputs (door microswitch and multifunction) |
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• EVX203, EVX204 and EVX205 - for the operation of ventilated refrig- |
• 4 digital outputs (relay, 5 for EVX215) for operation of the compres- |
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erated cabinets, with simple HACCP function |
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sor (30 A @ 250 VAC), defroster, the evaporator fan, a fourth and a |
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• EVX214 and EVX215 - for the operation of ventilated refrigerated |
fifth use (programmable as cell light, demister resistor, auxiliary out- |
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cabinets, with timer, advanced HACCP function and an Energy Sav- |
put, output alarm, door resistor, evaporator valve or condenser fan); |
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ing function. |
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defrosting may be electric or by hot gas. |
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EVX201 is equipped with: |
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The models are open (without covers); the user interface consists of a |
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• 1 measurement input (cell probe) for NTC probes |
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4 digit custom display (with decimal points and functional icons) and |
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• 1 digital input (door microswitch) |
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by six buttons (SET, UP, DOWN, DEFROST, AUXILIARY and |
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• 1digital |
output |
(relay) |
for |
compressor |
operation |
ON/STAND-BY). |
(16 A @ 250 VAC); defrosting occurs when the compressor is stopped. |
Installation is completed via back panel using M3 studs. |
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EVX203 is equipped with: |
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Using the EVKEY programming key (to be ordered separately) it is |
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• 2 measurement inputs (cell probe and evaportor probe) for NTC |
possible to carry out the uploading and downloading of the configu- |
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probes |
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ration parameters; it is also possible to connect the controllers RICS |
• 1 digital input (door microswitch) |
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supervision system (via serial interface, via TTL, with MODBUS com- |
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• 3 digital |
outputs |
(relay) |
for |
compressor |
operation |
munications protocol). |
(16 A @ 250 VAC), defrosting and the evaporator fan; defrosting may |
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be either electrical or by hot gas. |
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EVX204 and EVX205 are equipped with: |
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•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 compressor (30 A @ 250 VAC), defroster, the evaporator fan, a fourth and a fifth use (programmable as cell light, demister resistor, auxiliary output, output alarm, door resistor, evaporator valve or condenser fan); defrosting may be electric or by hot gas.
3 DIMENSIONS AND INSTALLATION
3.1Dimensions
The dimensions are expressed in mm (in).
3.2Installation
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 specifications
• 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, mechanical vibrations or shaking
• in accordance with laws on safety, protection against possible contact 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.
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.
4.2Manual switching on/off of the instrument
•make sure that the keyboard is not locked and that no other operation 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.
4.3The 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.
4.4Evaporator temperature display (but EVX201)
•make sure that the keyboard is not locked and that no other operation 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.
4.5Condenser temperature display (EVX204, EVX214, EVX205 and EVX215 only)
•make sure that the keyboard is not locked and that no other operation 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.
4.6Activation/disactivation of Overcooling function
• 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 (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.
4.7Manual Activation of Defrosting
•make sure that the keyboard is not locked and that no other operation 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 (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.
4.8Operation 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 evaporator 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 evaporator fan is always on.
Evco S.p.A. • Code 104X201E314 • page 2/8
4.8.1Manual 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 procedures 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” (operation 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.
4.8.2Display 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..
4.9Manual 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.
4.10Switching 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 procedure 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).
4.11Manually switch on/off of the Auxiliary output (EVX204, EVX214, 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.
4.12Energy 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 Energy Saving is activated automatically (as long as the input will be activated).
4.12.1Activation/deactivation of function Energy Saving with effect on the compressor only (EVX204, EVX214,
EVX205 and EVX215)
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 function 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 humidity 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.
4.13Silencing the Buzzer
•ensure that no other procedure in is progress
•press a key (the first pressing of the key will not cause the effect associated 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
5.1Setting 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 display 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.
5.2Setting 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:
•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 instrument 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
6.1Preliminary 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- |
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ture during any alarm of this type) |
AH |
maximum temperature alarm (the maximum cell tempera- |
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ture during any alarm of this type) |
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id |
door microswitch input alarm (the maximum cell tempera- |
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ture during any alarm of this type; see also parameter i4 |
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Important Notes:
•the codes are displayed in the order shown in the table
•the instrument stores the minimum and maximum temperature 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 information 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 |
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of the cell during the alarm) |
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AH |
maximum temperature alarm (the maximum temperature |
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of the cell during the alarm) |
id |
door microswitch input alarm (the maximum tempera- |
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ture of the cell during the alarm); see also parameter i4 |
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PF |
power supply interruption alarm (cell temperature when |
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power is restored); see also parameters A10 and A12 |
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Notes: |
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•the instrument stores the minimum and maximum temperature 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 instrument 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 |
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8.0 |
the critical value is 8.0 °C/8 °F |
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dur |
the display is about to show the duration of the alarm |
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h01 |
the alarm has been going off for 1 hour (data continues ...) |
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n15 |
the alarm lasted for 1 hour and 15 min |
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AH |
the alarm selected |
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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 paragraph 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 |
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8.0 |
the critical value is 8.0 °C/8 °F |
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StA |
the display is about to show the date and hour in which |
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the alarm was signaled |
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y09 |
the alarm was signaled in 2009 (data continues ...) |
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n03 |
the alarm was signaled in March (data continues ...) |
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d26 |
the alarm was signaled on the 26th of March 2009 |
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h16 |
the alarm was signaled at 16:00 (other data continues) |
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n30 |
the alarm was signaled at 16:30 |
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dur |
the display is about to show the alarm duration |
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h01 |
the alarm lasted for 1 hour (other data continues) |
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n15 |
the alarm lasted 1 hour and 15 min |
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AH3 |
the alarm selected |
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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.
6.3Cancelling 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)
7.1Preliminary notes
The instrument is able to store up to 9,999 hours of compressor operation, after which the number “9999” starts flashing.
7.2Display of Compressor Operation Hours
•make sure that the keyboard is not locked and that no other operation 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.
7.3Cancelling Compressor Operation Hours
•Make sure that the keyboard is not locked and that no other procedure 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 operation 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 remote:
-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 and provided that parameter u1 and/or parameter u11 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) |
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Clock LED |
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if flashing, the day and real time are in the process of being |
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changed (EVX214 and EVX215 only) |
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HACCP |
HACCP LED |
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if it is on, all information regarding HACCP alarms has not |
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been displayed |
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if it is flashing, the instrument has stored at least one new |
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HACCP alarm |
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if it is off, all information regarding the HACCP alarms has |
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been displayed or the list of HACCP alarms has been can- |
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celled |
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Energy Saving LED |
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if it is on, the Energy Saving function is running (but EVX201) |
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- parameters r4, F13, F14, i5, i10, HE1 and HE2 |
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maintenance LED |
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if on, compressor maintenance is required (but EVX201): |
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- parameter C10 |
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Overcooling LED |
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if on, the Overcooling function is on progress |
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- parameters r5 and r6 |
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Alarms LED |
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if on, an alarm or error is in progress |
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°C |
Celsius grade LED |
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if on, the temperatures will be displayed using the Celsius |
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grade unit of measurement: |
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- parameter P2 |
°F |
Fahrenheit grade LED |
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if on, the temperatures will be displayed using the Fahren- |
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heit grade unit of measurement: |
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- parameter P2 |
|
|
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on/stand-by LED |
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if on, the instrument is in stand-by mode |
8.2 |
Signal Descriptions/Explanations |
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CODE |
MEANING |
rhL |
operation for a low percentage of relative humidity in |
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progress |
|
|
rhH |
operation for a high percentage of relative humidity in |
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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 |
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|
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CODE |
MEANING |
|
AL |
Minimum alarm temperatures (HACCP alarms) |
|
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Solutions: |
|
|
• check the cell temperature (EVX201 only) |
|
|
• check the temperature associated with the alarm (but |
|
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EVX201) |
|
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• refer to: |
|
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- parameters A1 and A2 (EVX201 only) |
|
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- 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 |
|
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alarm (but EVX201) |
|
|
• the alarm output will be activated (provided that param- |
|
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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 |
|
|
|
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