Evco S.p.A. • Codice 104K802E04
EVK802 Digital controller for quick coolers management version 1.04
E ENGLISH
1 PREPARATIONS
1.1 Important
Please read these instructions carefully prior to installation and use, and
follow all the precautions for installation and electrical connections;
keep these instructions with the device for future consultation.
1.2 Installation
Per panel, using the snap-on brackets supplied; the dimensions are
given in mm.
DIMENS. MINIMUM TYPICAL MAXIMUM
A 71,0 71,0 71,8
B 29,0 29,0 29,8
Recommendations for installation:
• the maximum depth with screw terminal blocks is 59.0
• the maximum depth with removable terminal blocks is 83.0
• the panel thickness must not exceed 8,0 mm
• ensure that the operating conditions (operating temperature, humid-
ity, etc.) are within the limits indicated in the technical data sheets
• do not install the device near to any sources of heat (heating elements,
hot air conduits, etc.), equipment containing powerful magnets (large
diffusers, etc.), areas affected by direct sunlight, rain, humidity, exces-
sive dust, mechanical vibration or shock
• in compliance with safety regulations, the device must be installed
correctly, and in such a way as to protect against any contact with
electrical parts; all safety devices must be fixed so that they cannot be
removed without the use of tools.
1.3 Electrical connections
With reference to the electrical circuit diagram:
• the service controlled by relay K2 depends on parameter u0
• the serial port (available on request) is the port used for communicat-
ing with the monitoring system (by means of a serial interface, via TTL,
using the MODBUS communication protocol) or with the program-
ming key; the port must not be used for both purposes simultane-
ously.
Points to note for connecting to the electricity supply
• do not use electric or pneumatic screw-wrenches on the terminal
board
• if the device has been moved from a cold to a warm environment,
condensation may have formed inside; please wait approx. one hour
prior to switching on
• ensure that the voltage, frequency and operational power of the device
are compatible with the local power supply
•disconnect the power prior to proceeding with any kind of mainte-
nance operation
• do not use the device as a safety device
• for repairs and any information relating to the device, contact the
Evco dealer network.
2 USER INTERFACE
2.1 Introductory information
The device has the following operational states:
• "on" (the device is switched on and an operating cycle is running)
• "stand-by" (the device is switched on but no operating cycle is run-
ning)
• "off" (the device is not switched on).
If power is interrupted during a timed blast chilling operation, when
power is restored, chilling will continue from the time point at which
the interruption occurred (with a maximum error of 10 minutes).
If power is interrupted during a set-temperature blast chilling opera-
tion, when power is restored, chilling will start again from the begin-
ning.
If power is interrupted during a storage operation, when power is
restored the storage operation will be reset.
If power is interrupted while in "stand-by" mode, when power is re-
stored the device will be in the same state.
2.2 The display
In the "on" state, during normal operation, the display shows:
• the amount of time remaining for a timed blast chilling operation, if
this is ongoing
• the temperature measured by the pin probe if a set-temperature chill-
ing operation is ongoing
• the temperature of the cabinet, if storage is ongoing.
In "stand-by" mode, during normal operation, the display shows the
temperature of the cabinet for ½ s every 3 s.
2.3 Defrosting and the evaporator fan
The service controlled by relay K2 depends on parameter u0:
• if u0 = 0, the service controlled by relay K2 will be defrosting (electri-
cal defrosting; the evaporator fan is not controlled)
• if u0 = 0, the service controlled by relay K2 will be defrosting (electri-
cal defrosting; the evaporator fan is not controlled):
- during blast chilling, operation of the evaporator fan depends on
parameter F0
- during storage, operation of the evaporator fan depends on param-
eter F2
- the evaporator fan is started during defrosting.
In "stand-by" mode it is only possible to activate manual defrosting; if
the service controlled by relay K2 is the evaporator fan (parameter u0
= 1), during defrosting the evaporator fan will be switched on, and
during drip-draining, this will be switched off.
To start defrosting in manual mode:
• ensure no procedure is running
• press for 4 s.
Defrosting is never activated during blast-chilling.
Defrosting occurs periodically during storage; it is possible to start
defrosting manually.
2.4 Viewing the status of the compressor and the evapora-
tor fan
To view the compressor status:
• ensure no procedure is running
• press : the display will show the first available label:
- if the display shows "C-1", the compressor will be switched-on
- if the display shows "C-0", the compressor will be switched off
- if the display shows "C-P", compressor protection will be ongoing
(parameters C0, C1, C2 and i7).
To view the status of the evaporator fan:
• ensure no procedure is running
• press twice: the display will show the first available label:
- if the display shows "F-1", the evaporator fan will be switched on
- if the display shows "F-0", the evaporator fan will be switched off
- if the display shows "F-P", then evaporator fan deferred activation will
be ongoing (parameter F8).
To exit the procedure:
• press until the display shows the ongoing status value (see para-
graph 2.2), or leave for 15 s.
If the service controlled by relay K2 is defrosting (parameter u0 = 0),
labels "F-1", "F-0" and "F-P" will not be displayed.
2.5 Buzzer mute
• ensure no procedure is running
• press any key (the first key press does not trigger the associated effect).
3 OPERATIONAL CYCLES
3.1 Introductory information
The device has the following operational cycles:
• timed positive chilling and storage
• timed negative chilling and storage
• set-temperature positive chilling and storage
• set-temperature negative chilling and storage.
Set-temperature cycles are preceded by a test step in order to check
correct insertion of the pin probe (see paragraph 3.6).
To re-start using the same settings as the last cycle run:
• ensure that the device is in "stand-by" mode, that no procedures are
running and that another cycle has not been selected
• press 2 s: the display will show the label of the last cycle run
• press within 60 s: in the case of a timed cycle, the display will
show the duration of the blast chilling step (in minutes) or
in the case of a set-temperature cycle, the set target tempera-
ture
• press or within 15 s to change the value (the setting re-
mains active until another cycle is selected, when the value
r1, r2, r3 or r4 is restored)
• press within 15 s: the cycle will be activated.
3.2 Timed positive blast chilling and storage cycle
To start the cycle:
• ensure the device is in "stand-by" mode and no procedures are run-
ning
• press to select "PoS" and ensure the LED is flashing
• press within 15 s: the display will show the duration of the blast
chilling step (in minutes)
• press or within 15 s to change the value (the setting re-
mains active until another cycle is selected, when the value
assigned by parameter r1 is restored)
• press : the display will show the chilling operational setpoint (in
°C/°F) and the LED will flash
• press or within 15 s to change the value (the setting re-
mains active until another cycle is selected, when the value
assigned by parameter r7 is restored)
• press within 15 s: the cycle will be activated.
Also look at parameters rb and E0.
During chilling:
• the display shows the residual chilling time remaining
• the LED is on
• parameter r1 sets the chilling time duration
• parameter r7 sets the operational setpoint
• press several times to:
- display the message "PoS"
- display the cabinet temperature
- exit the procedure, or leave for 15 s.
Once the chilling period has elapsed:
• the device switches to storage mode
• the display shows the message "End"
• the buzzer sounds for the period of time set by parameter AA
• press any key to mute the buzzer; press once more to cancel the message
"End".
During storage:
• the display shows the cabinet temperature
• the LEDs and are on
• the parameter r9 sets the operational setpoint
• press several times to:
- display the message "PoS"
- exit the procedure, or leave for 15 s.
To interrupt the cycle:
• press for 2 s.
3.3 Timed negative chilling and storage cycle
To start the cycle:
• ensure the device is in "stand-by" mode and no procedures are run-
ning
• press to select "nEg" and ensure the LED is flashing
• press within 15 s: the display will show the duration of the blast
chilling step (in minutes)
• press or within 15 s to change the value (the setting re-
mains active until another cycle is selected, when the value
assigned by parameter r2 is restored)
• press : the display will show the chilling operational setpoint (in
°C/°F) and the LED will flash
• press or within 15 s to change the value (the setting re-
mains active until another cycle is selected, when the value
assigned by parameter r8 is restored)
• press within 15 s: the cycle will be activated.
Also look at parameters rb and E0.
During chilling:
• the display shows the residual chilling time remaining
• the LED is on
• parameter r2 sets the chilling time duration
• parameter r8 sets the operational setpoint
• press several times to:
- display the message "nEg"
- display the cabinet temperature
- exit the procedure, or leave for 15 s.
Once the chilling period has elapsed:
• the device switches to storage mode
• the display shows the message "End"
• the buzzer sounds for the period of time set by parameter AA
• press any key to mute the buzzer; press once more to cancel the message
"End".
During storage:
• the display shows the cabinet temperature
• the LEDs and are on
• the parameter rA sets the operational setpoint
• press several times to:
- display the message "nEg"
- exit the procedure, or leave for 15 s.
To interrupt the cycle:
• press for 2 s.
3.4 Set-temperature positive blast chilling and storage cy-
cle
To start the cycle:
• ensure the device is in "stand-by" mode and no procedures are run-
ning
• press to select "PoS" and ensure the LED is flashing
• press within 15 s: the display will show the blast chilling end-
point temperature
• press or within 15 s to change the value (the setting re-
mains active until another cycle is selected, when the value
assigned by parameter r3 is reset)
• press : the display will show the chilling operational setpoint (in
°C/°F) and the LED will flash
• press or within 15 s to change the value (the setting re-
mains active until another cycle is selected, when the value
assigned by parameter r7 is restored)
• press within 15 s: the cycle will be activated.
Also look at parameters rb and E0.
Prior to starting the cycle:
• the test is run in order to check correct pin probe insertion (see para-
graph 3.6):
- if the outcome of the test is positive, the cycle will be started
- if the outcome of the test is negative, the cycle will be started in timed
mode.
During chilling:
• the display shows the temperature measured by the pin probe
• the LED is on
• the parameter r3 sets the blast chilling endpoint temperature
• the parameter r5 sets the maximum chilling time duration
• the parameter r7 sets the operational setpoint
• press several times to:
- display the maximum residual chilling time remaining
- display the message "PoS"
- display the flashing cabinet temperature
- exit the procedure, or leave for 15 s.
If the temperature measured by the pin probe reaches the chilling
endpoint temperature prior to expiry of the maximum chilling time
duration:
• the device will switch to storage mode
• the display will show the message "End"
• the buzzer will sound for the period of time set by parameter AA
• press any key to mute the buzzer; press once more to cancel the
message "End".
If the temperature measured by the pin probe does not reach the chill-
ing endpoint temperature prior to expiry of the maximum chilling time
duration:
•chilling will continue
• the LED will flash and the LED will be on
• the buzzer will sound
• press several times to:
- mute the buzzer
- display the time elapsed since the maximum chilling time expired
- display the cabinet temperature
- display the message "PoS"
- exit the procedure, or leave for 15 s
• when the temperature measured by the pin probe reaches the chill-
ing endpoint temperature:
- the device switches to storage mode
- the LED will continue to flash and the LED will stay on
- the display will show the message "End"
- the buzzer will sound for the period of time set by parameter AA
- press any key to mute the buzzer; press once more to cancel the
message "End".
During storage:
• the display shows the cabinet temperature
• if chilling had a positive outcome, the LEDs and and will be
on; if chilling had a negative outcome, the LEDs and will be
on and the LED will flash
• the parameter r9 sets the operational setpoint
• press several times to:
- display the message "PoS"
- exit the procedure, or leave for 15 s.
To interrupt the cycle:
• press for2 s.
3.5 Set-temperature negative chilling and storage cycle
To start the cycle:
• ensure the device is in "stand-by" mode and no procedures are run-
ning
• press to select "nEg" and ensure the LED is flashing
• press within 15 s: the display will show the blast chilling end-
point temperature
• press or within 15 s to change the value (the setting re-
mains active until another cycle is selected, when the value
assigned by parameter r4 is restored)
• press : the display will show the chilling operational setpoint (in
°C/°F) and the LED will flash
• press or within 15 s to change the value (the setting re-
mains active until another cycle is selected, when the value
assigned by parameter r8 is restored)
• press within 15 s: the cycle will be activated.
Also look at parameters rb and E0.
Prior to starting the cycle:
• the test is run in order to check correct pin probe insertion (see para-
graph 3.6):
- if the outcome of the test is positive, the cycle will be started
- if the outcome of the test is positive, the cycle will be started.
During chilling:
• the display shows the temperature measured by the pin probe
• the LED is on
• the parameter r4 sets the chilling endpoint temperature
• the parameter r6 sets the maximum chilling time duration
• the parameter r8 sets the operational setpoint
• press several times to:
- display the maximum residual chilling time remaining
- display the message "nEg"
- flashing display the cabinet temperature
- exit the procedure, or leave for 15 s.
If the temperature measured by the pin probe reaches the chilling
endpoint temperature prior to expiry of the maximum chilling time
duration:
• the device will switch to storage mode
• the display will show the message "End"
• the buzzer will sound for the period of time set by parameter AA
• press any key to mute the buzzer; press once more to cancel the
message "End".
If the temperature measured by the pin probe does not reach the chill-
ing endpoint temperature prior to expiry of the maximum chilling time
duration:
• chilling will continue
• the LED will flash and the LED will be on
• the buzzer will sound
• press several times to:
- mute the buzzer
- display the time elapsed since the maximum chilling time expired
- display the cabinet temperature
- display the message "nEg"
- exit the procedure, or leave for 15 s
• when the temperature measured by the pin probe reaches the chill-
ing endpoint temperature:
- the device will switch to storage mode
- the LED will continue to flash and the LED will continue to
stay on
- the display will show the message "End"
- the buzzer will sound for the period of time set by parameter AA
- press any key to mute the buzzer; press once more to cancel the
message "End".
During storage:
• the display shows the cabinet temperature
• if chilling had a positive outcome, the LEDs and and will be
on; if chilling had a negative outcome, the LEDs and will be
on and the LED will flash
• the parameter rA sets the operational setpoint
• press several times to:
- display the message "nEg"
- exit the procedure, or leave for 15 s.
To interrupt the cycle:
• press for2 s.
3.6 Test to check correct pin probe insertion
Set-temperature cycles are preceded by a test step in order to check
correct pin probe insertion.
The test has two stages:
• if the outcome of the first stage is positive, the second will not be run
• if the outcome of the first stage is negative, the second will be run.
The outcome of the first stage is positive if "the temperature measured
by the pin probe - the temperature of the cabinet" is greater than the
value set by parameter rc at least 3 times out of 5 (the comparison is
made every 10 s); if parameter rc is set to 0, neither the first nor second
stages will be run.
The outcome of the second stage is positive if the difference "tempera-
ture measured by the pin probe - temperature of the cabinet" is greater
by at least 1ºC/1ºF (with respect to the previous comparison) at least 6
times out of 8 (the comparison is made every "rd/8 s").
If the outcome of the test is positive:
• the cycle will be activated.
the cycle will be activated:
• the cycle will be started in timed mode
• the LED will flash.
If power is interrupted during the test, when power is restored, the test
will start again from the beginning.
4 SETTINGS
4.1 Temporary setting of operational setpoint during stor-
age
• ensure the device is in "stand-by" mode and no procedures are run-
ning
• press : the LED will flash
• press or within15 s
• press or leave for 15 s.
The setting remains active until another operational cycle is selected,
when the value assigned by parameter r9 or ra is restored.
4.2 Setting the configuration parameters
The parameters are arranged on two levels.
To access the first level:
• ensure the device is in "stand-by" mode and no procedures are run-
ning
• press and for 4 s: the display will show “PA ”
To access the second level:
• access the first level
• press or to select “PA”
• press
• press or within 15 s to set “-19”
• press or leave for 15 s
• press and for4 s: the display will show “CA1”.
To select a parameter:
• press or
To modify a parameter:
• press
• press or within 15 s
• press or leave for 15 s.
To exit the procedure:
• press and for 4 s, or leave for 60 s.
IInterrupt the device power supply after altering the param-
eters.
4.3 Resetting configuration parameter default values
• ensure the device is in "stand-by" mode and no procedures are run-
ning
• press and for 4 s: the display will show “PA ”
• press
• press or within 15 s to set “743”
• press or leave for 15 s
• press and per 4 s: the display will show “dEF”
• press
• press or within 15 s to set “149”
• press or leave for 15 s: the display will flash "dEF" for 4 s, after
which the device will exit the procedure
• interrupt the power to the device.
Ensure that the parameter default values are appropriate,
particularly if the probes are NTC type.
5 SIGNALS
5.1 Signals
LED MESSAGE
timed chilling LED
• if on and the LED is off, a timed chilling operation is
ongoing
• if on and the LED is also on, a post timed-chilling stor-
age operation is ongoing
• if flashing, a timed chilling and storage cycle will have
been selected
set-temperature chilling LED
• if on and the LED is off, a set-temperature chilling op-
eration is ongoing
• if on and the LED is also on, a post set-temperature
chilling storage operation will be ongoing
• if flashing, a set-temperature chilling and storage cycle
will have been selected
• if it is on for ½ s every 3 s, the test to verify correct pin probe
insertion will be ongoing
• if flashing, and the LED is on, then the test to verify
correct pin probe insertion will have had a negative out-
come (parameters rc and rd) and the cycle will have been
started in timed mode; see paragraph 3.6
• if flashing, and the LED is on, the chilling stage will
have had a negative outcome, and so this will continue
• if flashing, and the LEDs and are on, the chilling
stage will have had a negative outcome, the device will
have switched to storage mode and this will be ongoing
storage LED
• if on, a storage operation will be ongoing
• if flashing, then the operational setpoint will be being
modified while a storage operation is ongoing (see para-
graph 4.1)
alarm LED
if on, an alarm is ongoing
°C degree Celsius LED
if on, the unit of measurement for temperature is degrees
Celsius (parameter P2)
°F degree Fahrenheit LED
if on, the unit of measurement for temperature is degrees
Fahrenheit (parameter P2)
decimal minute LED
point if flashing, the unit of measurement of magnitude displayed
is the minute
CODE MESSAGE
- d - defrosting or drip draining is ongoing
6 ALARMS
6.1 Alarms
CODE MESSAGE
AL Minimum temperature alarm
Remedies:
• check the cabinet temperature
• check parameters A1 and A2
Consequences:
• the device will continue to function normally
AH Maximum temperature alarm
Remedies:
• check the cabinet temperature
• check parameters A3 and A4
Consequences:
• the device will continue to function normally
id Micro-port input alarm (only in "stand-by" mode and if
parameter i0 is set to 0 or 1)
Remedies:
• check the causes which activated the input
• check parameters i0 and i1
Consequences:
• the outcome set by parameter i0
iA Compressor protection input alarm (only if parameter i0 is
set to 2)
Remedies:
• check the causes which activated the input
• check parameters i0 and i1
Consequences:
• the compressor will be shut down
When the cause that triggered the alarm has been resolved, the device
restores normal operation.
7 INTERNAL DIAGNOSTICS
7.1 Internal diagnostics
CODE MESSAGE
Pr1 Cabinet probe error
Remedies:
• see P0 parameter
• check probe integrity
• check probe-device connection
• check the cabinet temperature
Consequences if the error occurs while in "stand-by" mode:
• if parameter C11 is set to 0, it will not be possible to start
any of the cycles
• if parameter C11 is set to 1, the pin probe will function as
the cabinet probe and only timed cycles will be allowed
to start
Consequences if the error occurs during a timed chilling
operation:
• if parameter C11 is set to 0, the cycle will be interrupted
• if parameter C11 is set to 1, the pin probe will function as
the cabinet probe and the chilling operation will con-
tinue
Consequences if the error occurs during a set-temperature
chilling operation:
• if parameter C11 is set to 0, the cycle will be interrupted
• if parameter C11 is set to 1, the pin probe will function as
both the cabinet probe and pin probe and the chilling
operation will continue
9 CONFIGURATION PARAMETERS
9. 1 First level configuration parameters
PARAM. MIN. MAX. M.U. DEF.
r0 0,1 15,0 °C/°F (1) 2,0
r1 1 600 min 90
r2 1 600 min 240
r3 -99,0 99,0 °C/°F (1) 3,0
r4 -99,0 99,0 °C/°F (1) -18,0
r5 1 600 min 90
r6 1 600 min 240
r7 -99,0 99,0 °C/°F (1) 0,0
r8 -99,0 99,0 °C/°F (1) -40,0
r9 -99,0 99,0 °C/°F (1) 2,0
rA -99,0 99,0 °C/°F (1) -20,0
MAIN CONTROLLER
parameter r7, r8, r9 and Ra differential
timed positive blast chilling duration
timed negative blast chilling duration
positive blast chill end-point temperature (temperature detected by the pin probe)
negative blast chill end-point temperature (temperature detected by the pin probe)
set-temperature positive blast chilling maximum duration
set-temperature negative blast chilling maximum duration
positive blast chilling operational setpoint (cabinet temperature)
negative blast chilling operational setpoint (cabinet temperature)
post positive blast chill storage operational setpoint (cabinet temperature)
post negative blast chill storage operational setpoint (cabinet temperature)
9.2 Second level configuration parameters
PARAM. MIN. MAX. M.U. DEF.
CA1 -25,0 25,0 °C/°F (1) 0,0
CA2 -25,0 25,0 °C/°F (1) 0,0
P0 0 1 - - - 0
SENSOR INPUTS
cabinet probe offset
pin probe offset
probe type
0 = PTC
1 = NTC
P1 0 1 - - - 1
degree Celsius decimal point (for the quantity displayed during normal operation)
1 = YES
P2 0 1 - - - 0
unit of temperature measurement (2)
0=°C
1=°F
P3 0 1 - - - 1
pin probe enabling
1 = YES
PARAM. MIN. MAX. M.U. DEF.
r0 0,1 15,0 °C/°F (1) 2,0
r1 1 600 min 90
r2 1 600 min 240
r3 -99,0 99,0 °C/°F (1) 3,0
r4 -99,0 99,0 °C/°F (1) -18,0
r5 1 600 min 90
r6 1 600 min 240
MAIN CONTROLLER
parameter r7, r8, r9 and Ra differential
timed positive blast chilling duration
timed negative blast chilling duration
positive blast chill end-point temperature (temperature detected by the pin probe)
negative blast chill end-point temperature (temperature detected by the pin probe)
set-temperature positive blast chilling maximum duration
set-temperature negative blast chilling maximum duration
Consequences if the error occurs during a storage opera-
tion:
• parameter C11 is set to 0, the compressor activity will
depend on parameters C4, C5 and C6
• if parameter C11 is set to 1, the pin probe will function as
the cabinet probe and the storage operation will con-
tinue
Pr2 Pin probe error
Remedies:
• the same as for the previous case, but in relation to the pin
probe
Consequences if the error occurs while in "stand-by" mode:
• only timed operation cycles will be allowed to start
Consequences if the error occurs during a timed chilling
operation:
• chilling will continue
Consequences if the error occurs during a set-temperature
chilling operation:
• chilling will continue in timed mode
Consequences if the error occurs during storage mode:
• storage will continue
8 TECHNICAL DATA
8.1 Technical data
Case: grey self-extinguishing.
Front panel protection classification (use copper conduc-
tors only): IP 65.
Connections: Screw terminal blocks (power supply, inputs and out-
puts), 6 pin connector (serial port; available on request); extractable
terminal block (power supply, inputs and outputs) available on re-
quest.
Operating temperature: from 0 to 55 ºC (10 ... 90% relative humid-
ity, without condensation).
Power supply: 230 VAC, 50/60 Hz, 3 VA (nominal); 115 VAC or
12-24 VAC/DC or 12 VAC/DC by request.
Insulation class: 2.
Alarm buzzer: integrated.
Sensor inputs: 2 (cabinet probe and pin probe) for PTC/NTC probes.
Digital inputs: 1 (door switch/multifunction) for NA/NC contact (clean
contact, 5 V 1 mA).
Sensor range: from -50.0 to 150.0 ºC for PTC probes, from -40.0 to
105.0 ºC for NTC probes.
Sensitivity: 0.1ºC/1ºC/1ºF.
Digital outputs: 2 relays:
• compressor relay: 16 A res. @250 VAC, 5 FLA,
30 LRA (NA contact) versions with 12 VAC/DC and
12-24 VAC/DC; 8 A res. @ 250 VAC, 2 FLA, 12 LRA
otherwise
• defrosting/evaporator fan relay: 8 A res.
@250 VAC, 2 FLA, 12 LRA (exchange contacts).
The maximum permitted current on loads is 10 A.
Serial port: port for communicating with the monitoring system (by
means of a serial interface, via TTL, using the MODBUS communication
protocol) or with the programming key; available on request.
r7 -99,0 99,0 °C/°F (1) 0,0
r8 -99,0 99,0 °C/°F (1) -40,0
r9 -99,0 99,0 °C/°F (1) 2,0
rA -99,0 99,0 °C/°F (1) -20,0
rb02- - - 1
rc 0,0 99,0 °C/°F (1) 5, 0
rd 1 99 s 60
PARAM. MIN. MAX. M.U. DEF.
C0 0 240 min 0
C1 0 240 min 5
C2 0 240 min 3
C3 0 240 s 0
C4 0 240 min 10
C5 0 240 min 10
C6 0 240 min 20
C11 0 1 - - - 0
PARAM. MIN. MAX. M.U. DEF.
d0 0 99 h 8
d3 0 99 min 30
d7 0 1 5 min 2
PARAM. MIN. MAX. M.U. DEF.
A1 0,0 99,0 °C/°F (1) 10,0
A201- - - 1
A4 0,0 99,0 °C/°F (1) 10,0
A501- - - 1
A6 0 240 min 15
A7 0 240 min 15
A8 0 240 min 15
A9 0 240 min 15
AA 0 240 s 5
PARAM. MIN. MAX. M.U. DEF.
F002- - - 2
F202- - - 1
F8 0 99 min 0
PARAM. MIN. MAX. M.U. DEF.
i004- - - 1
i102- - - 2
PT • 48/10
positive blast chilling operational setpoint (cabinet temperature)
negative blast chilling operational setpoint (cabinet temperature)
post positive blast chill storage operational setpoint (cabinet temperature)
post negative blast chill storage operational setpoint (cabinet temperature)
kind of cycle enabled
0 = positive chilling
1 = positive chilling and negative chilling
2 = negative chilling
"temperature detected by the pin probe - temperature of the cabinet" difference for the first stage of the
test to check correct pin probe insertion (see paragraph 3.6)
0 = test will not be performed (neither the first nor second stages)
duration of the second stage of the test to check correct pin probe insertion (see paragraph 3.6)
COMPRESSOR PROTECTION
operational cycle deferred compressor start-up; deferred compressor power restoration also follow-
ing a power interruption during an operational cycle
minimum elapsed time period between two consecutive compressor start-up operations
minimum compressor shut-down time
minimum compressor start-up time
storage cabinet probe error compressor shut-down duration; see also C5 and C6 (only if C11 = 0)
positive storage cabinet probe error compressor start-up duration; see also C4 (only if C11 = 0)
negative storage cabinet probe error compressor start-up duration; see also C4 (only if C11 = 0)
pin probe operation during cabinet probe error
0 = pin probe
IF THE ERROR OCCURS IN "STAND-BY" MODE - it will not be possible to start any of the cycles
IF THE ERROR OCCURS DURING A TIMED OR SET TEMPERATURE BLAST CHILLING OPERATION - the
cycle will be interrupted
IF THE ERROR OCCURS DURING A STORAGE OPERATION - compressor activity will depend on
parameters C4, C5 and C6
1 = both pin probe and cabinet probe
IF THE ERROR OCCURS WHILE IN "STAND-BY" MODE - the pin probe will operate as a cabinet probe
and it will only be possible to start timed cycles
IF THE ERROR OCCURS DURING TIMED BLAST CHILLING - the pin probe will operate as a cabinet
probe and chilling will continue
IF THE ERROR OCCURS DURING SET-TEMPERATURE BLAST CHILLING - the pin probe will operate as
both a pin probe and as a cabinet probe and chilling will continue; it is recommended to
set the i0 parameter to 2 (COMPRESSOR PROTECTION)
IF THE ERROR OCCURS DURING A STORAGE OPERATION - the pin probe will operate as a cabinet
probe and storage will continue
DEFROST
defrost interval (3)
0 = regular periodic defrosting will never be enabled
defrost duration
0 = defrosting will never be enabled
drip-drain duration
i2 -1 120 min 30
door switch input alarm activation delay (solo se i0 = 0 o 1)
-1 = the alarm will not sound
i3 -1 120 min 15
door switch input activation effect maximum duration (only if i0 = 0 or 1)
-1 = the effect will last until the input will be disabled
i7 0 120 min 0
PARAM. MIN. MAX. M.U. DEF.
u001- - - 1
compressor protection deactivation compressor delay (only if i0 = 2)
DIGITAL OUTPUTS
service controlled by relay K2 (see paragraph 2.3)
0 = defrosting
1 = evaporator fan
PARAM. MIN. MAX. M.U. DEF.
LA 1 247 - - - 247
Lb 0 3 - - - 2
SERIAL NETWORK (MODBUS)
device address
baud rate
0 = 2.400 baud
1 = 4.800 baud
2 = 9.600 baud
3 = 19.200 baud
LP02- - - 2
parity
0 = none (no parity)
1 = odd
2 = even
PARAM. MIN. MAX. M.U. DEF.
E003- - - 1
ENABLING
quantity modifiable quickly before starting the cycle
0 = no quantity
1 = if you have selected a timed chilling cycle, the chilling duration
if you have selected a set-temperature chilling cycle, the chilling end-point temperature
2 = if you have selected a timed chilling cycle, the chilling duration and the chilling operational
setpoint
if you have selected a set-temperature chilling cycle, the chilling operational setpoint
3 = if you have selected a timed chilling cycle, the chilling duration and the chilling operational
setpoint
if you have selected a set-temperature chilling cycle, the chilling end-point temperature and the
chilling operational setpoint
E901- - - 1
reserved
(1) the unit of measurement depends on parameter P2
(2) set the parameters relating to the controllers appropriately after altering parameter P2
(3) the device stores the defrost interval count every 30 minutes; altering parameter d0 has effect of concluding the previous defrost interval or
manual defrost activation
(4) the temperature alarm functions are only enabled during storage operations
(5) the parameter differential is 2.0 ºC/4 ºF
(6) there are no temperature alarms during defrosting and drip draining, if they occur following defrost activation
(7) there is no maximum temperature alarm while door switch input is enabled, if occurring after input activation
(8) the evaporator fan will be shut down providing defrosting is not ongoing
(9) the compressor and/or ventilator fan are shut down 10 s after input activation
(10) the compressor is shut down 10 s after input activation.
TEMPERATURE ALARMS (4)
the temperature below which the minimum temperature alarm is activated; see also A2 (5)
The device must be disposed of in accordance with local regulations pertaining to the collection of electrical and electronic appliances.
minimum temperature alarm type
0 = no alarm
1 = depending on parameters r9 and rA (or "r9 - A1" and "rA - A1")
the temperature above which the maximum temperature alarm is activated; see also A5 (5)
maximum temperature alarm type
0 = no alarm
1 = depending on parameters r9 and rA (or "r9 + A4" and "rA + A4")
storage operation start-up temperature alarm delay
temperature alarm delay
drip-drain end maximum temperature alarm delay (6)
door switch input deactivation maximum temperature alarm delay (only if i0 = 0 or 1) (7)
blast chill completion buzzer duration
EVAPORATOR FAN (only if u0 = 1)
evaporator fan activity during chilling
0 = off
1 = on
2 = in parallel with the compressor
evaporator fan activity during storage
0 = off
1 = on
2 = in parallel with the compressor
evaporator fan start-up delay following defrost cycle start
DIGITAL INPUTS
digital input operation
0=DOOR SWITCH INPUT - in this case parameters i1, i2 and i3 assume significance; enabling input will
cause the evaporator fan to be shut down (at most for the period of time set by i3 or until input will
be disabled) (8) (9)
1=DOOR SWITCH INPUT - in this case parameters i1, i2 and i3 assume significance; enabling input will
cause the compressor and evaporator fan to be shut down (at most for the period of time set by i3
or until input will be disabled) (8) (9)
2=COMPRESSOR PROTECTION - in this case, parameters i1 and i7 assume significance; the compressor
will be shut-down, the display will flash code "iA" and the buzzer will be activated (until the input
will be deactivated)
3=DOOR SWITCH INPUT - in this case parameters i1, i2 and i3 assume significance; enabling input will
cause the evaporator fan to be shut down (at most for the period of time set by i3 or until input will
be disabled) (8)
4=DOOR SWITCH INPUT - in this case parameters i1, i2 and i3 assume significance; enabling input will
cause the compressor and evaporator fan to be shut down (at most for the period of time set by i3
or until input will be disabled) (8) (10)
digital input contact type
0 = NA (input active with contact closed)
1 = NC (input active with contact open)
2 = no input
EVCO S.p.A. This document belongs to Evco; unless you are authorized by Evco, you can not publish it.
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Phone +39-0437-852468 • Fax +39-0437-83648 Evco does not take any responsibility about damages coming by the non-observance of the 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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