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3516526A02 Ed. 01

Alarms

Level 1

Level 2

Description

Values Min. Def. Max.

Configuration of the temperature alarms 0=Relative to SP 1=Absolute

Alarm for maximum in sensor 1 (it must be higher than the SP)

ºC/ºF

A2 99.0 99.0

Alarm for minimum in sensor 1 (it must be lower than the SP)

ºC/ºF -50 -50 A1

Delay of temperature alarms in the start-up

min.

120

Delay of temperature alarms from the end of a defrost

min.

Delay of temperature alarms from when the A1 or A2 value is reached

min.

Delay of external alarm/severe external alarm on receiving digital input signal
(I10 or I20=2 or 3)

min.

120

External alarm deactivation delay / Severe external alarm on
disappearance of signal at digital input (I10 or I20=2 or 3)

min.

120

Show warning if the defrost ends for maximum time 0=No 1=Yes

Polarity relay alarm 0= Relay ON in alarm (OFF without alarm);
1= Relay OFF in alarm (ON without alarm)

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.

10 120

A20

Minimum superheating value for LSH alarm

A21

LSH alarm activation delay

sec.

30 240

A22

LSH alarm hysteresis

0.1

Sh-

A20

A23

Maximum superheating value for HSH warning

A24

Delayed activation of the HSH warning

30 240

A25

HSH alarm deactivation hysteresis

0.1

A23-

A26

Maximum evaporating pressure (MOP)

bar

A27

MOP alarm activation delay (Delay time for activating alarm after threshold
has been exceeded)

sec.

30 240

A28

MOP alarm deactivation hysteresis (When the pressure drops below the
MOP-hysteresis level the alarm is deactivated)

bar

0.1

A29

Minimum evaporating pressure (LOP)

bar

-1

A30

LOP alarm activation delay (Delay time for activating alarm after threshold has
been exceeded)

sec.

30 240

A31

LOP alarm deactivation hysteresis (When the pressure exceeds the LOP+
hysteresis level the alarm is deactivated)

bar

0.1

Output to level 1

Содержание 16526A

Страница 1: ...3516526A02 Ed 01 EN AKO 16526A Advanced temperature and electronic expansion controller for cold room store User manual...

Страница 2: ...occur due to failure to comply with these regulations Rigorously follow the instructions described in this manual In order to extend the lifetime of our products to the maximum the following points mu...

Страница 3: ...be used in a place without heat influences apart from the tem perature you want to measure or control The IP65 protection degree is only valid with the protection cover closed The IP65 protection degr...

Страница 4: ...po de v lvula u00 V lvula PWM 1 Regulaci n ventiladores F10 ON OFF 0 Sondas conectadas I00 Temp c mara temp Evap 2 Configuraci n D1 S3 I10 Presostato de baja 7 Configuraci n D3 S5 I30 Temperatura supe...

Страница 5: ...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...

Страница 6: ...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 exp...

Страница 7: ...box Mark and make the holes in the wall with the aid of the template included Fix the device to the wall If it is a brick wall use the screws and plugs supplied if the wall is made of sheet metal col...

Страница 8: ...a Location of the evaporator probe The probe must be located as near as possible to the inlet of refrigerant from the evaporator close to the expansion valve in the finned area In certain evaporators...

Страница 9: ...for relay or contactor outputs should have a section of 2 5 mm2 allow working temperatures equal to or over 70 C and be installed with as little bending as possible The 120 230 V wiring area must be k...

Страница 10: ...he use of a superheating temperature sensor S5 and an evaporator pressure sensor S6 Analogue outputs The analogue output ANALOG OUT enables communication between the controller and the external contro...

Страница 11: ...plays the temperature but does not regulate the temperature 1 No No Consumption Yes 0 0 2 0 0 0 0 20 0 0 2 Yes Yes Consumption Yes 1 1 2 7 1 0 0 20 0 0 3 Yes No Consumption Yes 0 1 2 0 0 0 0 20 0 0 4...

Страница 12: ...A Step 4 Define the pressure units to be used I60 0 Bar I60 1 Psi Step 5 Define the type of pressure sensor used I61 0 Deactivated I61 1 4 20 mA I61 2 0 5 V I61 3 0 5 4 5 V I61 4 0 10 V I61 5 1 5 V St...

Страница 13: ...ent the controller stops See page 19 Operation Messages Pump down malfunction error Stop The time configured in parameter C20 has been exceeded See page 19 Only displayed on screen Pump down malfuncti...

Страница 14: ...e audible alarm Minimum superheat alarm The value set in A20 has been reached See page 29 Acti vates the alarm relay and the audible alarm Minimum superheat alert The value defined in A23 has been rea...

Страница 15: ...ion 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 stabilit...

Страница 16: ...frost cycles IMPORTANT During the calibration processes the following should be avoided Opening the cold room door Turning the controller off or putting it on stand by Changing controller parameters i...

Страница 17: ...olenoid opens causing the pressure in the evaporator to increase and therefore the low pressure switch deactivates and the compressor starts up Once the set point SP value is reached the solenoid clos...

Страница 18: ...m line of the display by default Parameter b23 defines which value is displayed on that line When there is no cooling required the superheat value is not updated as the regulation is stopped When the...

Страница 19: ...w pressure switch is activated but it will display the Pd message after 15 minutes START When the temperature in sensor S1 reaches the set point value plus the differential SP C1 the COOL relay acti v...

Страница 20: ...activating this mode the compressor begins to operate until the temperature in sensor S1 reaches the set point value minus the variation indicated in param eter C10 The value of C10 is always negativ...

Страница 21: ...ans of the CAMM module and the AKO CAMM tool application EXAMPLE If the SELFDRIVE mode is active It is recommended for calibration to be performed with the lowest set point value It is recommended tha...

Страница 22: ...E operating mode CE 1 If the SELFDRIVE mode is active in the case of opening the door the fans stop or do not stop depending on param eter C22 If the door does not close when the time set in parameter...

Страница 23: ...nd solenoid are stopped Hot gas InI 7 and 8 d7 2 The hot gas from compressor discharge is used to melt evaporator ice and to this end two valves are necessary one at the condenser input A and another...

Страница 24: ...rost completion Defrost will complete if The temperature programmed in parameter d4 has been reached in sensor 2 This requires a 2nd sensor l00 2 to be available located in the evaporator The time con...

Страница 25: ...AIR HOT GAS Fin spacing of the evaporator in mm 3 0 1 2 1 3 4 0 1 2 3 5 0 1 2 1 3 4 0 1 2 4 1 2 3 2 4 5 0 1 2 4 5 2 3 4 3 5 6 1 2 3 5 2 3 5 3 5 7 1 2 3 5 5 2 3 5 3 5 7 1 2 4 6 3 4 6 4 6 8 1 3 4 6 5 3...

Страница 26: ...ost I10 or I20 5 Defrost locking This prevents defrost starting at unusual points by means of an external switch which may be useful for ensuring that the installation s load does not excessively incr...

Страница 27: ...and F1 sensor differential If sensor S2 is not connected or an error in the sensor E2 is detected the fans continuously operate without taking into account parameters F0 and F1 but taking the remaini...

Страница 28: ...deactivate when 10 degrees are reached If A0 1 Absolute the maximum temperature alarm will activate when 10 degrees are reached in sensor 1 and will deactivate when 8 degrees are reached External alar...

Страница 29: ...n door alarm is activated In order to detect the open door configuration is required of one of the digital inputs as door contact l10 or l20 1 Activates alarm relay and audible alarm Minimum superheat...

Страница 30: ...tion of the maximum operating pressure alarm from when the programmed value is reached Delay to activation of LOP alarm A30 Delays activation of the lowest operating pressure alarm from when the progr...

Страница 31: ...r is not in operation it powers the crankcase resistor This function can only be selected via the initial wizard In Light o00 2 This regulates the operation of cold room light See page 31 Virtual cont...

Страница 32: ...external control o20 3 Sends the ON OFF signal to the external frequency inverter if F10 1 or to the EVV driver if u00 2 Defrost 2nd Evaporator o20 4 This controls the defrost resistors of a second e...

Страница 33: ...m defrost duration 0 defrost deactivated min 0 255 d4 Final defrost temperature by sensor If I00 1 C F 0 8 0 50 SH Superheating set point K 0 1 8 40 F3 Status of the fans during the defrost 0 Stopped...

Страница 34: ...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 par...

Страница 35: ...ays be OFF when disconnected min 0 10 120 C8 Time of relay OFF if sensor 1 damaged If C8 0 and C7 0 the relay will always be ON when connected min 0 5 120 C9 Maximum duration of the continuous cycle m...

Страница 36: ...ype of defrost 0 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...

Страница 37: ...0 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...

Страница 38: ...FF without alarm 1 Relay OFF in alarm ON without alarm 0 0 1 A10 Differential of temperature alarms A1 and A2 C F 0 1 1 0 20 0 A12 Delay of open door alarm if I10 or I20 1 min 0 10 120 A20 Minimum sup...

Страница 39: ...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...

Страница 40: ...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 1 Level 2 Description Values Min Def Ma...

Страница 41: ...nt for each unit within the same network The address can be changed using parameter b20 Once modified the old address indicated on the plate will not be valid Tr Tr GND GND Tr Tr RS 485 GND AKO 80039...

Страница 42: ...olerance of the NTC probe at 25 C 0 4 C Input for NTC probe AKO 14950 AKO 14950 8 Working ambient temperature 10 C to 50 C Ambient storage temperature 30 C to 60 C Protection degree IP 65 Installation...

Страница 43: ...3516526A02 Ed 01 43...

Страница 44: ...08812 Sant Pere de Ribes Barcelona Spain Tel 34 902 333 145 Fax 34 938 934 054 www ako com We reserve the right to supply materials slightly different to those described in our Data Sheets Updated inf...

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