AKO-16526A V2 Advanced Temperature Controller User Guide

AKO-16526A V2
AKO-16526AN V2

Advanced temperature and electronic expansion
controller for cold room store

Quick guide

AKO-16526A V2 Advanced Temperature Controller

Warnings
-If the device is used without adhering to the manufacturer’s instructions, the device safety requirements could be compromised. Only probes supplied by AKO must be used for the unit to operate correctly. cable, the maximum deviation will be 0.25 °C (cable for sensor extension ref. AKO-15586 / AKO-15586H. Earth the cable mesh at one end only).
-From -40 °C to +20 °C, if the NTC sensor is extended to 1000 m with at least a 0.5 mm2
-Pt1000 sensors can be extended up to 25 m using the AKO-15586 / AKO-15586H sensor extension cable.
-The product should be installed in a place protected from vibrations, water and corrosive gases, where the ambient temperature does not exceed the value indicated in the technical data.
-For the reading to be correct, the sensor should be used in a place without heat influences apart from the temperature you want to measure or control.
– The IP65 protection degree is only valid with the protection cover closed.
– The IP65 protection degree is only valid if the cables enter the device using a tube for electric conductions + gland with IP65 or above.
The gland should be the right size for the diameter of the tube used.
-Do not spray the unit directly with high-pressure hoses, as this could damage it.
-This device must be installed in a location where a minimum distance of 20 cm to the human body can be guaranteed, in order to ensure compliance with standards on human exposure to electromagnetic fields.
-The AKO-16526AN device must NEVER be operating without the internal antenna. This device can be fitted with any antenna provided it has a gain of less than 9.2 dBi and there is a minimum distance of more than 20 cm between it and any person or animal.
Any type of antenna used with this device must comply with the limits established for the radio interfacing Member States and the following documents:
Commission Decision 2010/267/EU of 6 May 2010, ECC Decision (09)03 of 30 October 2009 and CEPT Report 30 of 30 October 2009.

Maintenance

Clean the surface of the unit with a soft cloth, water and soap.
Do not use abrasive detergents, petrol, alcohol or solvents, as this might damage the unit.

Wiring
** Always disconnect the power supply to do the wiring.
The probes and their cables must NEVER be installed in a conduit together with power, control or power supply cables.
For disconnection, the power supply circuit must be equipped with at least a 2 A, 230 V switch, located near the device. The power supply cable shall be of the H05VV-F or NYM 1×16/3 type. The section to be used will depend on current local regulations, but should never be less than 1.5 mm2.
Cables for relay or contactor outputs should have a section of 2.5 mm2, allow working temperatures equal to or over 70ºC, and be installed with as little bending as possible.
The 120 / 230 V~ wiring area must be kept clear of any other external element.
The wiring setup depends on the options selected in the set-up wizard and on the input and output configurations (See page 31).
Check the enclosed schematic and the defined configuration before wiring.
The parameter St (Type of connected probes) affects all probe inputs. Therefore all connected probes (NTC or Pt1000) must be the same.
IMPORTANT:**

• The AUXILIARY relays are programmable, and their operation depends on the configuration.
• The function of the digital inputs depends on the configuration.
• The recommended currents and powers are the maximum working currents and powers.

ATTENTION: When drilling the holes for the glands, take care to avoid damaging the internal components.
AKO-16526AN: DO NOT DRILL ANY HOLES IN THE TOP OF THE DEVICE.

Description

The AKO-16526A / 16526AN advanced controller for cold room stores has a SELFDRIVE operating mode that automatically controls (without parametrization) the fans and adaptively minimizes defrosts to optimise the performance of the cold room store:
maximizing time in set point and minimizing costs linked to energy consumption and wear of components.
It has an output to regulate the electronic expansion valve. It can be configured so it can control superheating, as well as adjust the cold in the store. The AKO-16526AN controller incorporates a NBIoT communication module that allows it to send operation data to alkanet. cloud autonomously.

Constant: Stand-By Mode activated. Regulation is paused.
Flashing: Controlled stop process for the regulation in progress.
Constant: Cold room door open.
Flashing: The door has been open for a longer time than defined in parameter A12.
There is an active alarm (No HACCP or temperature).
Constant: HACCP alarm active.
Flashing: HACCP alarm recorded and unconfirmed To acknowledge an HACCP alarm, press the key.
The temperature alarm is active.
Constant: Evaporator fans active.
Flashing: The evaporator fans should be active but something is preventing them from activating.
Constant: The COOL relay is active.
Flashing: The COOL relay should be active but a delay or protection is preventing this.
Pulsing: Expansion valve regulated.
Constant: The SELFDRIVE mode is active.
Flashing: An error has been detected in SELFDRIVE mode. To view it, press the▼ key.
Constant: Compressor active.
Flashing: The compressor should be active but a delay or protection is preventing this.
Defrosting active.
Continuous cycle mode active.
Cold room light active.
Alarm in progress muted.
Temperature displayed in ° Fahrenheit / ° centigrade.
**PRG**Programming mode active.
Lower display showing the real time superheating value.
**%** Lower display showing percentage of EEV opening.
**bar psi** Lower display showing low pressure in psi / bar.
ON: Device registered on the Naboot network and with a valid licence.
OFF: Unable to register on the Naboot network or the licence has expired.

Keypad

| Press and hold for 3 seconds to activate/deactivate the Stand-By mode. In this mode, regulation is paused and the  icon is displayed.
In the programming menu, it exits the parameter without saving changes and returns to the previous level, or exits programming.
---|---
| Pressing once without holding displays the temperature of sensor S2 for 10 seconds (if it is enabled).
Pressing it for 3 seconds starts/stops the defrost.
In the programming menu, it allows you to scroll through the different levels, or when setting a parameter to change its value.
| A brief press shows the SELFDRIVE mode errors.
Pressing it for 3 seconds activates/deactivates the continuous cycle mode.
In the programming menu, it allows you to scroll through the different levels, or when setting a parameter to change its value.
| Pressing once without holding activates/deactivates the cold room light.
Pressing it for 3 seconds accesses the condensed programming menu.
Pressing it for 6 seconds accesses the expanded programming menu.
In the programming menu, it accesses the level shown on the display or, during the setting of a parameter, accepts the new value.
| Pressing it once without holding it down displays the current effective value of the temperature Set Point in the upper display and the superheating set point in the lower display, taking into consideration temporary changes due to other parameters.
When an alarm is in progress, pressing once without holding mutes the acoustic alarm. Pressing for 3 seconds accesses the temperature Set Point setting.
| Only AKO-16526AN: Pressing the SET and ESC buttons for 3 seconds forces the transmission to the cloud via Naboot connectivity.

STAND-BY
If the regulation cannot be stopped immediately due to its configuration, a controlled stop process starts and the   icon flashes. To stop the controlled stop process and force Stand-by, press the Stand-by key again for 3 seconds.

Assistant
The first time the unit receives the power supply, it will enter into ASSISTANT mode. The display will show the message flashing at .
**** The buttons▲ and▼  change the value, the SET button accepts the value and moves on to the next step.

Step 1:
Select the most suitable InI option based on the type of installation to be carried out and press SET.
The available options will be shown in the following table:

| Demo mode: it displays the temperature but does not regulate the temperature
| No| No| Electric| Yes| 0| 0| | 2| 0| 0| 0| 0| 20| 0| 0
| Yes| Yes| Electric| Yes| 1| 1| | 2| 7| 1| 0| 0| 20| 0| 0
| Yes| No| Electric| Yes| 0| 1| | 2| 0| 0| 0| 0| 20| 0| 0
| No| No| Air| Yes| 0| 0| | 1| 0| 0| 0| 0| 20| 1| 1
| Yes| Yes| Air| Yes| 1| 1| | 1| 7| 1| 0| 0| 20| 1| 1
| Yes| No| Air| Yes| 0| 1| | 1| 0| 0| 0| 0| 20| 1| 1
| Yes| Yes| Hot gas| Yes| 1| 1| | 2| 7| 1| 7| 1| 5| 2| 0
| Yes| No| Hot gas| Yes| 0| 1| | 2| 0| 0| 7| 1| 5| 2| 0

** If options 2, 5 or 7 are chosen, check the configuration of parameter I11 according to the pressure switch type used.
Step 2:**
Define the type of refrigerant gas used.

u02=24 R454A
Step 3:
Define the minimum value of the pressure sensor (I62) (Value at 4 mA, 0 V, 0.5 V or 1 V according to I61).
Step 4:
Define the maximum value of the pressure sensor (I63) (Value at 20 mA, 5 V, 4.5 V or 10 V according to I61).
*Steps only visible if u02=7
Step 5:
Select the temperature set point.
Step 6:
Set all other parameters to default?
dFP=0 No, the other parameters do not need to be changed.
dFP=1 Yes, set all other parameters to their default values.
This option only appears if this is not the first time the set-up wizard has been run.
The initial configuration is now complete, and the device will start to regulate the temperature.
** The configuration wizard will not reactivate. To reactivate it, activate the stand-by mode (by pressing the m key for 3 seconds) and wait until the unit completely halts regulation (the m indicator will light up permanently) and press the▲ ,▼, SET buttons in this order in sequence, not at the same time.
If the Pump Down function is active, there may be a delay between the initiation of the Stand-by function and the moment the controller stops (See page 17).
Registration on alkanet. cloud (only AKO-16525AN)**
In order for the controller to be able to send operation data to alkanet. cloud, it must be registered.
To do this, go to https://akonet.cloud (requires registration), click on “Add new device” and continue with one of these two methods:

• Enter the serial number (S/N) and validation code / IMEI that appear on the tag and press “Search”.
• Capture the QR code that appears on the tag using the option (requires having a camera on your PC, tablet or mobile phone).

These data are found on the tag on the right hand side of the controller. More information can be found in the alkanet. cloud user guide at: “https://enhelpakonet.ako.com/”
To access alkanet. cloud, enter this address in your browser (the use of Google Chrome is recommended): https://akonet.cloud.
Before activating the device, make sure that there is enough reception at the installation location. Activated devices may not be returned.
Forcing transmission
When the steps of the configuration wizard and the registration process are completed in alkanet. cloud, you must force a first transmission to verify the level of reception:
Press and hold the ESC and SET keys for 3 seconds.
After a moment, the display shows the quality of the Naboot signal received:

The controller does not start transmitting data to alkanet. cloud until the first transmission is forced.

Operation

Messages

| Pump down malfunction error (Stop). The time configured in parameter C20 has been exceeded. Only displayed on screen.
---|---
| Pump down malfunction error (Start). The time configured in parameter C19 has been exceeded. Only displayed on screen.
| Sensor 1, 2, 3, 4, 5 or 6 is faulty (open circuit, crossed circuit, or value outside sensor limits).
Activates the alarm relay and the audible alarm.
| Open door alarm. Only if the door stays open for a longer time than defined in parameter A12.
Activates the alarm relay and the audible alarm.
| Maximum temperature in control sensor alarm. The temperature value programmed in A1 has been reached. Activates the alarm relay and the audible alarm.
| Minimum temperature in control sensor alarm. The temperature value programmed in A2 has been reached. Activates the alarm relay and the audible alarm.
| External alarm activated (by digital input) . Activates the alarm relay and the audible alarm.
| Severe external alarm activated (by digital input). Activates the alarm relay and the audible alarm.
| Defrost time-out alert. The time set in d1 has been exceeded. Activates the alarm relay and the audible alarm.
| HACCP alarm. The temperature has reached the value of parameter h1 for a longer period than established in h2. Activates the alarm relay and the audible alarm.
| HACCP alarm due to a fault in the electric supply. The temperature set in h1 has been reached following a fault in the electric supply. Activates the alarm relay and the audible alarm.
| Minimum superheat alarm. The value set in A20 has been reached. Activates the alarm relay and the audible alarm.
| Minimum superheat alert. The value defined in A23 has been reached. Only displayed on screen.
| Maximum evaporating pressure alarm. The value defined in A26 has been reached. Activates the alarm relay and the audible alarm.
| Minimum evaporating pressure alarm. The value defined in A29 has been reached (See page 27).
Activates the alarm relay and the audible alarm.
| Indicates that a defrost is being performed (See page 21). Only displayed on screen.
| Password request. See parameters b10 and PAS (See page 37). Only displayed on screen.
| Shown sequentially with the temperature: The controller is in demo mode, the configuration has not been made.
| Calibration ongoing, therefore, avoid, as far as possible, opening the cold room during the process.
For more information, (See page 14).
| Flashing light with temperature: Configuration has been changed from 1 to 2 evaporators or vice versa.

SELFDRIVE mode alert messages (Only shown by pressing the▼  key)

| Defrost end error in 1/2 evaporator during the calibration, defrost has not ended due to temperature.
---|---
| Error during calibration in 1/2 evaporator. There is not enough difference in temperature between the cold room probe and the evaporator probe.
| It has not been possible to carry out the calibration due to a lack of stability in the system (Excessive door opening, excessive oscillations in the lower pressure, etc.).
| Error during normal operation (SELFDRIVE Mode active) in 1/2 evaporator. There is not enough difference in temperature between the cold room probe and the evaporator probe.
| A lack of stability has been detected in the system (Excessive door opening, excessive oscillations in the low pressure, etc.) during normal operation (SELFDRIVE Mode active).
| The persistent lack of stability has led to the deactivation of the SELFDRIVE mode.
| Excessive door openings have been detected during calibration and it has not been possible to calibrate.
| Excessive door openings have been detected and the device cannot regulate in SELFDRIVE mode.

Configuration
Condensed programming menu
This allows for the most-used parameters to be quickly configured. Press the SET key for 3 seconds to access it.

Parameters

Level 2|
---|---
Description| Values| Min.| Def.| Max.
SP| Temperature setting (Set Point)| ºC/ºF| -50| 0.0| 99
CE| SELFDRIVE Mode 0=Deactivated 1= Activated| | 0| 0| 1
C1| Sensor 1 differential (Hysteresis)| ºC/ºF| 1.0| 2.0| 20.0
d0| Defrost frequency (time between 2 starts)| h.| 0| 6| 96
d1| Maximum defrost duration (0=defrost deactivated)| min.| 0| | 255
d4| Final defrost temperature (by sensor) (If I00 ¹ 1)| ºC/ºF| 0| 8.0| 50
SH| Superheating set point| ºK| 0.1| 8| 40
F3| Status of the fans during the defrost 0=Stopped; 1=Running| | 0| | 1
A1| Alarm for maximum in sensor 1 (it must be higher than the SP)| ºC/ºF| A2| 99.0| 99.0
A2| Alarm for minimum in sensor 1 (it must be lower than the SP)| ºC/ºF| -50| -50| A1
d30| Defrost strategy in SELFDRIVE mode| | 0| 5| 10

* According to the set-up wizard.
Extended programming menu
Use the extended programming menu to configure all of the unit’s parameters in order to adapt it to your installation requirements. Press the SET key for 6 seconds to access it.
IMPORTANT: If the password function has been configured as a keypad lock (b10=2), or as an access to parameters block (b10=1), you will be requested to enter the password programmed in PAS when attempting to access either of the two functions. If the entered password is not correct, the unit will go back to showing the temperature.
IMPORTANT: Certain parameters or menus may not be visible depending on the configuration of the other parameters and the options chosen during set- up.

Parameters

Regulation and control

Level 2
Level 1| Description| Values| Min.| Def.| Max.
---|---|---|---|---|---
rE| SP| Temperature setting (Set Point)| ºC/ºF| -50| 0.0| 99
CE| SELFDRIVE Mode 0=Deactivated 1= Activated| | 0| 1| 1
C0| Sensor 1 calibration (Offset)| ºC/ºF| -4.0| 0.0| 4.0
C1| Sensor 1 differential (Hysteresis)| ºC/ºF| 1.0| 2.0| 20.0
C2| Set point top locking (it cannot be set above this value)| ºC/ºF| C3| 99| 99
C3| Set point bottom locking (it cannot be set under this value)| ºC/ºF| -50| -50| C2
C4| Type of delay for the protection of the compressor: 0=Minimum OFF time of the compressor
1=Minimum OFF and ON time of the compressor in each cycle| | 0| 0| 1
C5| Protection delay time (Value of the option selected in parameter C4)| min.| 0| 0| 120
C6| COOL relay status with fault in sensor 1:
0=OFF; 1=ON; 2=Average according to last 24 h before the sensor error; 3=ON- OFF according prog. C7 and C8| | 0| 2| 3
C7| Time of relay ON if sensor 1 damaged (If C7=0 and C8¹0, the relay will always be OFF when disconnected)| min.| 0| 10| 120
C8| Time of relay OFF if sensor 1 damaged (If C8=0 and C7¹0, the relay will always be ON when connected)| min.| 0| 5| 120
C9| Maximum duration of the continuous cycle mode. (0=deactivated)| h.| 0| 0| 48
C10| Variation of the Set Point (SP) in continuous cycle mode. When it reaches this point (SP+C10), it reverts to the normal mode. (SP+C10 ³ C3).
The value of this parameter is always negative, unless it is 0. (0=OFF)| ºC/ºF| 0| -50| C3- SP
C12| Variation of the set point (SP) when the change set point change function is active. (SP+C12£ C2) (0= deactivated)| ºC/ºF| C3- SP| 0| C2- SP
C19| Maximum time for start-up after gas collection
(Values between 1 and 9 seconds are not accepted) (0= Deactivated)| sec.| 0| 0| 120
C20| Maximum time for pump down (0= deactivated)| min.| 0| 0| 15
C22| Stop fans and COOL when opening door 0=No 1=Yes| | 0| 0| 1
C23| Start-up delay for fans and COOL when door open| min.| 0| 0| 999
C24| Delay time of cold stop with door open.| sec.| 0| 0| C23
C25| Influence of probe S3 when regulating with two temperature probes (I20=10)| %| 0| 0| 95
C27| Sensor 4 calibration (Offset)| ºC/ºF| -4.0| 0.0| 4.0
EP| Output to level 1

Defrost

Level 2
Level 1| Description| Values| Min.| Def.| Max.
---|---|---|---|---|---

dEF

| dO| Defrost frequency (time between 2 starts)| h.| 0| 6| 96
dl| Maximum defrost duration (0=defrost deactivated)| min.| 0| | 255
d2| Type of message during the defrost: 0=Sign of the real temperature; 1=Sign of the temperature at the start of the defrost; 2=Sample of the dEF message| | 0| 2| 2
d3| Maximum message duration
(Time added at the end of the defrost process)| min.| 0| 5| 255
d4| Final defrost temperature (by sensor) (If 100 # 1)| °CI°F| 0| 8.0| 50
d5| Defrost on connecting the unit: O=NO, First defrost according to d0; 1=YES, First defrost according to d6| | 0| 0| 1
d6| Delay of the defrost start on connecting the unit| min.| 0| 0| 255
d7| Type of defrost: O=Resistors; 1=Air / fans; 2=Hot gas| | 0| | 2
d8| Time calculation between defrost periods:
0=Total real time 1=Sum of COOL time connected| | 0| 0| 1
d9| Drip time when a defrost finishes (Stop COOL and fans)| II
min.| 0| 1| 255
d30| Defrost strategy in SELFDRIVE mode| | 0| 5| 10
d31| Maximum time without defrosting (O=Deactivated)| h.| 0| 96| 999
d32| Maximum time of cold room outside the temperature regulation range (O=Deactivated)| | 0| 2| 10
EP| Output to level 1| | | |

Evaporator fans

Level 2
Level 1| Description| Values| Min.| Def.| Max.
---|---|---|---|---|---
FAn| F0| Fans stop temperature| ºC/ºF.| -50| 45| 50
F1| Sensor 2 differential if fans are stopped| ºC/ºF| 0.1| 2.0| 20.0
F2| Stop fans when the compressor stops 0=No 1=Yes| | 0| 0| 1
F3| Status of the fans during the defrost 0=Stopped; 1=Running| | 0| *| 1
F4| Start-up delay after defrost (if F3=0) Only actuates if higher than d9| min.| 0| 2| 99
EP| Output to level 1

Expansion valve

Level 2
Level 1| Description| Values| Min.| Def.| Max.
---|---|---|---|---|---
EEV| u00| Valve type: 1=PWM-type EEV 2=Stepper-type EEV| | 1| 1| 2
SH| Superheating set point| K| 0.1| 8| 40
u02| Refrigerant gas type: 0= R-404A, 1= R-134A, 2= R-407A, 3= R-407F, 4= R-410A,
5= R-450A, 6= R-513A, 7= R-744, 8= R-449A, 9= R-290, 10= R-32, 11= R-448A,
12=R1234ze, 13=R23, 14=R717, 15=R407C, 16=R1234yf, 17=R22, 18=R454C,
19=R455A, 20=R507A, 21=R515B, 22=R452A, 23=R452B, 24=R454A|

0

|

|

24

u03| PWM cycle time| s.| 2| 6| 10
u04| Proportional constant value (P)| | 1| 10| 100
u05| Integral constant value (I)| | 0| 10| 100
u06| Derivative constant value (D)| | 0| 0| 100
u07| Opening value of the electronic expansion valve when cooling is activated| %| u13| 50| u12
u08| Duration of valve opening on cooling demand| s.| 2| 5| 240
u09| Valve opening value with sensor error S5 or S6: 0=Fixed opening according to u10; 1=Average opening over the last 24 hours| | 0| 0| 1
u10| Valve opening value with sensor error S5 or S6 (if u09=0)| %| u13| 0| u12
u11| Manual valve opening value (0=Disabled), (cycles acc. to u03)| %| u13| 0| u12
u12| Maximum valve opening value| %| u13| 100| 100
u13| Minimum valve opening value| %| 0| 0| u12
u14| Valve opening value after defrost (0=Disabled), (duration according to u15)| %| 0/ u13| 0| u12
u15| Duration of valve opening after defrosting| s| 0| 0| 240
u16| Valve opening in case of LOP error (0=valve closed)| %| 0/ u13| 0| u12
EP| Output to level 1

Alarms

Level 2
Level 1| Description| Values| Min.| Def.| Max.
---|---|---|---|---|---
AL| A0| Configuration of the temperature alarms 0=Relative to SP 1=Absolute| | 0| 1| 1
A1| Alarm for maximum in sensor 1 (it must be higher than the SP)| ºC/ºF| A2| 99.0| 99.0
A2| Alarm for minimum in sensor 1 (it must be lower than the SP)| ºC/ºF| -50| -50| A1
A3| Delay of temperature alarms in the start-up| min.| 0| 0| 120
A4| Delay of temperature alarms from the end of a defrost| min.| 0| 0| 99
A5| Delay of temperature alarms from when the A1 or A2 value is reached| min.| 0| 30| 99
A6| Delay of external alarm/severe external alarm on receiving digital input signal (I10 or I20=2 or 3)| min.| 0| 0| 120
A7| External alarm deactivation delay / Severe external alarm on disappearance of signal at digital input (I10 or I20=2 or 3)| min.| 0| 0| 120
A8| Show warning if the defrost ends for maximum time 0=No 1=Yes| | 0| 0| 1
A9| Polarity relay alarm 0= Relay ON in alarm (OFF without alarm); 1= Relay OFF in alarm (ON without alarm)| | 0| 0| 1
A10| Differential of temperature alarms (A1 and A2)| ºC/ºF| 0.1| 1.0| 20.0
A12| Delay of open door alarm (if I10 or I20=1)| min.| 0| 10| 120
A20| Minimum superheating value for LSH alarm| K| 0| 2| SH
A21| LSH alarm activation delay| sec.| 0| 30| 240
A22| LSH alarm hysteresis| K| 0.1| 2| Sh- A20
A23| Maximum superheating value for HSH warning| K| sh| 40| 40
A24| Delayed activation of the HSH warning| s| 0| 30| 240
A25| HSH alarm deactivation hysteresis| K| 0.1| 2| A23- sh
A26| Maximum evaporating pressure (MOP)| bar| 0| 60| 60
A27| MOP alarm activation delay (Delay time for activating alarm after threshold has been exceeded)| sec.| 0| 30| 240
A28| MOP alarm deactivation hysteresis (When the pressure drops below the MOP-hysteresis level the alarm is deactivated)| bar| 0.1| 1| 60
A29| Minimum evaporating pressure (LOP)| bar| -1| 0| 8
A30| LOP alarm activation delay (Delay time for activating alarm after threshold has been exceeded)| sec.| 0| 30| 240
A31| LOP alarm deactivation hysteresis (When the pressure exceeds the LOP+ hysteresis level the alarm is deactivated)| bar| 0.1| 1| 8
EP| Output to level 1

Basic configuration

Level 2
Level 1| Description| Values| Min.| Def.| Max.
---|---|---|---|---|---

bcn

| b00| Delay of all functions on receiving power supply| min.| 0| 0| 255
b01| Cold room light timing| min.| 0| 0| 999
b10| Password function 0=Inactive 1=Block access to parameters 2=Lock keypad| | 0| 0| 2
PAS| Password| | 0| 0| 99
b20| MODBUS address| | 1| 1| 247
b21| Communication speed: 0=9600 bps 1=19200 bps 2=38400 bps 3=57600 bps| bps| 0| 0| 3
b22| Audible alarm enabled 0= No 1=Yes| | 0| 1| 1
b23| Lower display function: 1=sensor S2, 2=sensor S3, 3=sensor S4, 4=sensor S5, 5=Superheating, 6=Pressure
sensor, 7=% EEV, 9=Carousel, 10 = Off| | 1| *| 10
b30| Activation of manual calibration 0=Deactivated 1= Activated Requires security code| | 0| 0| 1
Unt| Working units 0=°C 1.°F| | 0| 0| 1
EP| Output to level 1| | | |

Inputs and outputs

Level 2
Level 1| Description| Values| Min.| Def.| Max.
---|---|---|---|---|---
InO| St| Type of probes connected: 0= NTC, 1= Pt1000| | 0| 0| 1
I00| Probes connected: 1=Sensor 1 (cold room), 2=Sensor 1 (cold room) + Sensor 2 (evaporator)| | 1| 2| 2

I10

| D1 / S3 input configuration: 0=Deactivated, 1=Door contact, 2=External alarm, 3=Severe external alarm, 4=Change SP, 5=Remote defrost, 6=Defrost lockout, 7=Low pressure switch, 8=Remote activation in standby mode, 9=Product temperature| | 0| | 9
I11| Digital input polarity D1: 0=Activates on closing, 1=Activates on opening contact| | 0| 0| 1
I20| D2 / S4 input configuration: 0=Deactivated, 1=Door contact, 2=External alarm, 3=Severe external alarm, 4=Change SP, 5=Remote defrost, 6=Defrost lockout, 7=High pressure switch for hot gas, 8=Remote activation of standby mode, 9=Product temperature, 10=Defrost 2nd evaporator, 11=2nd cold room temperature probe| | 0| | 11
I21| Digital input polarity D2: 0=Activates on closing, 1=Activates on opening contact| | 0| 0| 1
I60| Pressure units: 0= bar, 1= Psi| | 0| *| 1
I61| Pressure sensor type (S6): 0= Deactivated, 1= 4-20 mA, 2= 0-5 V, 3= 0.5-4.5 V, 4= 0-10 V, 5= 1-5 V| | 0| 3| 5
I62| Minimum pressure sensor value (4mA, 0V, 0.5V, 1)| | -1| -1| I63
I63| Maximum pressure sensor value (20mA, 5V, 4.5V, 10V)| | I62| 9| 60
I64| Pressure sensor calibration (S2)| | -10| 0| 10

Inputs and outputs

Level 2
Level 1| Description| Values| Min.| Def.| Max.
---|---|---|---|---|---
In0| o00| AUX1 relay configuration: 0= Deactivated, 1= Compressor/Crankcase resist- ance, 2= Light, 3= Virtual control, 4= Alarm, 5= Door frame resistor, 6=Drainage resistor| | 0| *| 6
o10| AUX2 relay configuration: 0= Deactivated, 1= Alarm, 2= Light, 3= Virtual control, 4= Defrost 2nd evaporator, 5= Door frame resistor, 6= Equal solenoid status, 7= Equal device status, 8=Drainage resistor| | 0| 2| 8
o20| AUX3 relay configuration: 0= Deactivated, 1= Alarms, 2= Light, 3= External AO controller ON/OFF, 4=Defrost 2nd evaporator, 5= Door frame resistor, 6=Drainage resistor| 0| 0| 6
o30| Analogue output type (AO): 0= 4-20mA, 1= 0-10V| | 0| 0| 1
EP| Output to level 1

HACCP alarm

Level 2
Level 1| Description| Values| Min.| Def.| Max.
---|---|---|---|---|---
HCP| h1| HACCP alarm maximum temperature| ºC/ºF| -50| 99| 99
h2| Maximum permitted time for activation of the HACCP alarm (0=HACCP alarm
deactivated)| h.| 0| 0| 255
EP| Output to level 1| | | |

Information (read-only)

Level 2
Level 1| Description| Values| Min.| Def.| Max.
---|---|---|---|---|---
tid| InI| Option chosen in the configuration wizard| | | |
Pd| Pump down active? 0=No, 1=Yes| | | |
PU| Program version| | | |
Pr| Program revision| | | |
PSr| Program sub revision| | | |
bU| Bootloader version| | | |
br| Bootloader revision| | | |
bSr| Bootloader sub revision| | | |
PAr| Parameter map revision| | | |
EP| Output to level 1

Technical specifications

Power supply ……………………………………………………………………. 100 – 240 V ~ 50/60 Hz
Maximum input power in the operation …………………………………………………8.1 VA
Maximum nominal current …………………………………………………………………15 A
DEF relay – SPDT – 20 A NO (EN 60730-1: 15 (15) A 250 V~ )
NC …………………………………………………..(EN 60730-1: 15 (13) A 250 V~)
FAN relay – SPST – 16 A (EN 60730-1: 12 (9) A 250 V~)
Relay COOL – SPST – SSR 2 A Vmax: 275 V~, Imax: 2 A
AUX relay 1 – SPDT – 20 A
AUX relay 2 – SPDT – 16 A
AUX relay 3 – SPST – 16 A
NO …………………………………………………..(EN 60730-1: 15 (15) A 250 V~)
NC …………………………………………………..(EN 60730-1: 15 (13) A 250 V~)
NO …………………………………………………….(EN 60730-1: 12 (9) A 250 V~)
NC …………………………………………………….(EN 60730-1: 10 (8) A 250 V~)
NO …………………………………………………….(EN 60730-1: 12 (9) A 250 V~)
No. of relay operations ……………………………………………………………………………..EN 60730-1:100,000 operations
Sensor temperature range ……………………………………………………………………………-50.0 ºC to 99.9 ºC
Resolution, adjustment and differential ……………………………………………………………………… 0.1 ºC
Thermometric accuracy ……………………………………………………………………………………………….. ±1 ºC
Tolerance of the NTC probe at 25 ºC ………………………………………………………………………. ±0.4 ºC
Input for NTC probe ………………………………………………………………………………………. AKO-14950 / AKO-14950-8
Working ambient temperature ……………………………………………………………………….-10 ºC to 50 ºC
Ambient storage temperature ………………………………………………………………………………-30 ºC to 60 ºC
Protection degree ……………………………………………………………………………………………………. IP 65
Installation category ……………………………………………………………………………………….. II as per EN 60730-1
Degree of pollution ………………………………………………………………………………………………… II as per EN 60730-1
Grade as per UNE-EN 60730-1: Built-in control device, with Type 1.B automatic action operation feature, for use in clean situations, logical support (software) class A and continuous operation. Degree of pollution 2.
Double isolation between power supply, secondary circuit and relay output.
Accessible parts pressure ball test temperature ………………………………………………………………………………… 75 °C
Parts positioning active elements …………………………………………………………………………………………………. 125 ºC
Radio interference suppression test current ……………………………………………………………………………………270 mA
Voltage and current delayed by the EMC tests: ………………………………………………………………………..207 V, 17 mA
Type of mounting ……………………………………………………………………………………………………………… Fixed interior
MODBUS address ………………………………………………………………………………………………….. Indicated on the label
Dimensions ………………………………………………………………………………. 290 mm (W) x 141 mm (H) x 84.4 mm (D)
Internal buzzer
AKO-16526AN
Maximum transmission power ………………………………………………………………………………….. 23.5 dBm conducted
Antenna …………………………………………………………………………………………………………………………………. Internal
Bands …………………………………………………….. NBIoT (Narrow band) LTE Cat NB1 | B2, B3, B4, B8, B12, B13, B20
Band
2 …………….. 1930 MHz ~ 1990 MHz
3 …………….. 1805 MHz ~ 1880 MHz
4 …………….. 2110 MHz ~ 2155 MHz
8 ………………. 925 MHz ~ 960 MHz
12 ……………… 729 MHz ~ 746 MHz
13 ……………… 746 MHz ~ 756 MHz
20 ……………… 791 MHz ~ 821 MHz
Rx Frequency
MHz ~ 1990 MHz ……………. 1850
MHz ~ 1880 MHz ……………. 1710
MHz ~ 2155 MHz ……………. 1710
MHz ~ 960 MHz ……………….. 880
MHz ~ 746 MHz ……………….. 699
MHz ~ 756 MHz ……………….. 777
MHz ~ 821 MHz ……………….. 832
Tx Frequency
MHz ~ 1910 MHz
MHz ~ 1785 MHz
MHz ~ 1755 MHz
MHz ~ 915 MHz
MHz ~ 716 MHz
MHz ~ 787 MHz
MHz ~ 862 MHz
For further information, refer to the user manual available on: https://help.ako.com/assets/uploads/3516526A32.pdf

AKO ELECTROMECÁNICA , S.A.L.
Avda. Roquetes, 30-38
08812 • Sant Pere de Ribes.
Barcelona • Spain
www.ako.com
3516526A41 Rev. 02 2023
We reserve the right to supply materials slightly different to those described in our Data Sheets. Updated information in our website.

References

• AKONET.Cloud
• AKONET.Cloud
• akonet.cloud help
• akonet.cloud help
• Ayuda de akonet.cloud
• Aide d' akonet.cloud
• Aide d' akonet.cloud

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