Danfoss AK-PC 572 Installation guide

Installation Guide

Danfoss

AK-PC 572

Identification | Identificação | Identificatie | Identification | Identificación

80G393

080R9330

AN29572719924701- 000201

1.5 m: 080G0075

3.0 m: 080G0076

AK-PC 572 EKE 1P

Power supply | Fonte de energia | Stroomvoorziening
Source de courant | Fuente de alimentación

AK-PC 572 24 V AC / DC 17 VA
EKE 1P 24 V AC / DC 7 – 20 VA

IP 20

-20 – 60 °C
(0 – 140 °F)
RH max. 90% non condensing

Principle | Princípio | Beginsel | Principe | Principio

MMIGRS2

Dimension | Dimensão | Dimensie | Dimension | Dimensión

© Danfoss | DCS (vt) | 2019.12

AN29572719924701-000201 | 1

Connections

DO

HR / DO

s

80G386

ENGLISH

Danfos

CAN RJ

COM

CAN RJ

AI1

COM

AI1

AI2

AI2

AI3

AI3

AI4

AI4

COM

COM

CAN RJ

DI1

DI2

5V+

COM

RGND

D+

D –

COM

AI1

AI2

AI3

AI4

COM

DI1

DI2

5V+

COM

RGND

D+

D –

CAN RJ

DI1

DI2

5V+

COM

RGND

D+

D –

COM

AI1

AI2

AI3

AI4

COM

DI1

DI2

5V+

COM

RGND

D+

D –

EKE 1P

EKE 1P

HR / DI Aux 3

LT - SS

LT - Sd

Oil / DI Aux 2

MODBUS Field Bus

A+

B-

NC1

C1

NC1

NO1

C1

NO1

B2

B2

B1

B1

A2

A2

A1

A1

Bat+

Bat+

GND

+/~

GND

–/~

+/~

+

–/~

-

NC1

C1

NC1

NO1

C1

NO1

B2

B2

B1

B1

A2

A2

A1

A1

Bat+

Bat+

GND

+/~

GND

–/~

+/~

+

–/~

-

AUX 3

M

Vrec

Battery back-up

24 V

Power

Important!

Wait before connecting the power supply to the

modules!

In order to set the addresses 96 and 97, you must fol-

low the recommended procedure. See page 4.

AUX 2

32 A

M

Vhp

6 A

(4)

Battery back-up

24 V

6 A

(4)

Power

0.5 A

min. 50 mA

Ioff < 1.5 mA

Connection, lower level Connection, upper level

24 V AC/DC

Warning

The supply voltage

of AI may not share

the signal with

other controllers.

Separate

supply

1 = Black = +

2 = Blue = -

AKS 32R

AKS 2050

Extern

24 V

MODBUS

3 = Brown = s

MBS 8250

VSD MT

AC/DC

AI 1 = PoMT

AI 2 = PoLT

AI 3 = Pgc

AI 4 = Prec

0 – 10 V

VSD LT

0 – 10 V

CAN RJ

LN

CANBUS D- D+

DO

DO DO1 DO2 DO3 DO4 DO5 DO6 DO7 DO8 Σ 1-8

0.5 A

min. 50 mA

6 A

(4)

6 A

(4)

10 A

(3.5)

(3.5)

I Max. 10 A

Ioff < 1,5 mA

U All 24 V or all 230 V AC

2 | AN29572719924701-000201

Electric noise

Signal cables for sensors, DI inputs, data communication

and display must be kept separate from high voltage

(230 V) electric cables:

- Use separate cable trays

- Keep a distance between high voltage and signal cables

of at least 10 cm

Fan

0 – 10 V

- Cables longer than 3 m at the DI input should be avoided

© Danfoss | DCS (vt) | 2019.12

MAIN MODULE
AO - Analogue output, 3 pcs. AO1, AO3, AO4

Must be used if using frequency converters or EC motors.
Connect 24 V on N and L (separate power supply) Avoid earth fault
current.

- Use double-insulated transformer. The secondary side must not
be earthed.
Obtain 0-10 volts from terminals Com-AO1, N-AO3 and N-AO4.
PAY ATTENTION TO THE POLARITY of N.
(AO3 and AO4 are galvanically isolated. AO1 is not).

AI - Analogue inputs

Pressure transmitters, 4 pcs. AI1 - AI4

AKS 32R /
AKS 2050 /
MBS 8250

10 – 90% ratiometric

HIGH PRESSURE MODULE
Supply voltage to high pressure module

The power supply can be taken from the main module.

Battery

Ensure that the valve closes if there is no supply voltage.

Stepper valve

FX ventil type CCMT.
Connector:
A1 5: WHITE
A2 6: BLACK
B1 7: RED
B2 8: GREEN

CANBUS

Data communication to the main module.

Temperature sensors, 4 pcs. AI5 - AI8

• Pt 1000 ohm, AKS 11 or AKS 21.

DI - Digital switch inputs, 8 pcs. DI1 - DI8

The connection may be a shut-down or interruption function.
Select what is to be activated during configuration.
(DI3 can be used as an AUX1 input, but only if regulated with 2 MT
compressors).

Supply

24 V AC or DC Class II is required.

AK-PC 572 17 VA
EKE 1P 20 VA

CANBUS

Communication to the high pressure module and to the receiver
module
"L" to "L" and "H" to "H"
A jumper must be connected between "H" and "R".
Terminate on the AK-PC with a resistance of 120 ohm.
If mounting an external display, the termination must also be done
at the display. See next page.

Important!
In order to establish communication with the extension modules, you
must follow the recommended procedure. See next page.

MODBUS

It is important that the installation of the data communication
cable is carried out correctly. See separate literature no. RC8AC...
Remember termination at the termination points.

DO - Digital outputs, 8 pcs. DO1-DO8

DO5 and DO6 are solid state relays. The outputs are used for
connecting a Bitzer CRII. If a Bitzer CRII is not being connected,
output DO6 can be used for activation of an oil valve.
The relays are de-rated to the specified values.
The alarm relay will be driven under normal operation and
will drop in the event of alarms and insufficient voltage to the
controller.
(DO3 can be used as an AUX1 output, but only if regulated with 2
MT compressors).

Sensor inputs

• Pt 1000 ohm, AKS 11 or AKS 21.

Contact input AUX 2

Signal from oil level,
or input for fan alarm or another alarm.

Relay output AUX 2

Activation of de-superheating or hot gas dump.

MODBUS

Data communication with other devices.
It is important that the installation of the data communication
cable is performed correctly.
See separate literature no. RC8AC...
Remember termination at the termination points. Use a twisted
pair shielded cable, but do not connect the shield to the EKE 1P.

RECEIVER MODULE
Supply voltage to high pressure module

The power supply can be taken from the main module.

Battery

Ensure that the valve closes if there is no supply voltage.

Stepper valve

FX valve type CCMT.
Connector:
A1 5: WHITE
A2 6: BLACK
B1 7: RED
B2 8: GREEN

CANBUS

Data communication to the main module.
The section must be terminated using a 120 ohm resistor.

Contact input AUX 3

Signal from heat recovery,
or input for fan alarm or another alarm.

Relay output AUX 3

Activation of heat recovery,
or AUX 3 output for de-superheating or hot gas dump.

© Danfoss | DCS (vt) | 2019.12

AN29572719924701-000201 | 3

External display

80G3867

R = 1200Ω
L→H

Extension modules

MODBUS master

H - R

R120 Bridge - CAN H
CAN H Red
CAN L Green
C GND Yellow

Yellow

Green

Red

D –

D+

RGND

High pressure Receiver

Bitzer CRII

The pulse signal can also be used to control one of the CRII with 2 unloaders (4 cylinders' version).
Compressor capacity can be controlled from 10 to 100% depending on the pulsation of the unloaders.
The unloaders are connected to DO5 and DO6.
Connect compressor relay to DO-MT1.

0 V / Open 5 V

ANALOGUE / DIGITAL INPUTRS-485 RS-485 CAN-RJCAN-RJ ANALOGUE / DIGITAL INPUT

COM

5V+

DI2

CAN RJ

DI1

COM

AI4

AI3

AI2

AI1

COM

COM

5V+

DI2

DI1

COM

AI4

D –

D+

AI3

RGND

Danfoss

CAN RJ

AI2

AI1

COM

Unloader 2 follows unloader 1
but is offset a ½ period.

Important

Read the following before you connect the controller and the two
valve modules to the supply voltage.

The EKE 1P is pre-configured to determine the extension module
mode based on the AI4 status of the EKE 1P:

AI4 Open circuit: high pressure module
AI4 short circuit to 5V: receiver module

Alternatively the EKE 1P configuration may be set by connecting
a graphical display to the EKE 1P. See separate EKE 1P documenta­tion.

If you wish to check the addresses of the two valve modules, you
should carry out the following:

1. Connect all modules to the power supply.

2. Immediately press on both the "X" and "Enter" buttons while the
controller is starting up.

3. Find the display "CAN SETTINGS" > "ACTIVE NODES"

Unloader 1

Unloader 2

The two 1-digits represent the addresses 96 (HP module) and 97
(Receiver module) respectively.
If you remove the connection to a valve module, the display of
the address will also disappear.

4 | AN29572719924701-000201

© Danfoss | DCS (vt) | 2019.12

Conexões

DO

HR / DO

s

80G386

PORTUGUÊS

Danfos

CAN RJ

COM

CAN RJ

AI1

COM

AI1

AI2

AI2

AI3

AI3

AI4

AI4

COM

COM

CAN RJ

DI1

DI2

5V+

COM

RGND

D+

D –

COM

AI1

AI2

AI3

AI4

COM

DI1

DI2

5V+

COM

RGND

D+

D –

CAN RJ

DI1

DI2

5V+

COM

RGND

D+

D –

COM

AI1

AI2

AI3

AI4

COM

DI1

DI2

5V+

COM

RGND

D+

D –

EKE 1P

EKE 1P

HR / DI Aux 3

LT - SS

LT - Sd

Oil / DI Aux 2

MODBUS Field Bus

A+

B-

NC1

C1

NC1

NO1

C1

NO1

B2

B2

B1

B1

A2

A2

A1

A1

Bat+

Bat+

GND

+/~

GND

–/~

+/~

+

–/~

-

NC1

C1

NC1

NO1

C1

NO1

B2

B2

B1

B1

A2

A2

A1

A1

Bat+

Bat+

GND

+/~

GND

–/~

+/~

+

–/~

-

AUX 3

M

Vrec

Suporte da bateria

24 V

Consumo

Importante!

Espere antes de conectar a fonte de alimentação aos

módulos!

Para definir os endereços 96 e 97, é preciso seguir o

procedimento recomendado. Consulte a página 7.

AUX 2

M

Vhp

24 V

32 A

6 A

(4)

Suporte da bateria

6 A

(4)

Consumo

0.5 A

min. 50 mA

Ioff < 1,5 mA

Conexão, nível inferior Conexão, nível superior

0.5 A

min. 50 mA

Ioff < 1,5 mA

MODBUS

6 A

6 A

10 A

(4)

(4)

(3,5)

CAN RJ

CANBUS D- D+

(3,5)

DO DO1 DO2 DO3 DO4 DO5 DO6 DO7 DO8 Σ 1-8

I Max. 10 A

CA/CC de 24 V

LN

U Tudo 24 V ou tudo 230 V CA

DO

AI 1 = PoMT

AI 2 = PoLT

AI 3 = Pgc

VSD MT

0 – 10 V

AI 4 = Prec

VSD LT

0 – 10 V

Aviso

A tensão de alimentação

do AI pode não partilhar

1 = Preto = +

2 = Azul = -

3 = Castanho = s

AKS 32R

AKS 2050

MBS 8250

o sinal com outros

controladores.

© Danfoss | DCS (vt) | 2019.12

Alimentação

em separado

CA/CC de 24 V

externo

Ventoinha

0 – 10 V

Ruído elétrico

Cabos de sinal para sensores, entradas DI, comunicação de

dados e display devem ser mantidos separados de outros

alta tensão (230 V) cabos elétricos:

- Use condutores de cabos separados

- Manter uma distância entre os cabos de alta tensão e de

sinal de pelo menos 10 cm

- Cabos de extensão superior a 3 m na entrada DI devem

ser evitados

AN29572719924701-000201 | 5