Danfoss AK-CC 460 Installation guide

Installation Guide

AK-CC 460

Identiﬁcation

Principle

Application 1, 3

1: Sequential operation 3: Cyclic operation

084R8052

AN234086440123en-000301

Dimensions

08 4B8016

Application 2

Speed control

AN234086440123en-000301 | 1

Connections

Appplication 1 and 3

DI1 DI2

Solid state output

DO1 DO2 DO3 DO4 DO5 DO6 DO7 DI3

Appplication 2

DI1 DI2 AO

DO2 DO3 DO4 DO5 DO6 DO7 DI3

Overview of outputs and applications

Application DO1 DO2 DO3 DO4 DO5 DO6 DO7 DI1 DI2 DI3 AI1 AI2 AI3 AI4 AI5 AI6 AO

1 and 3

• • •

S7 S3 S4 S5 S6

S7 S3 S4 S5 S6 0-10V

Relays

DO1 (for coil)

DO3, DO4 4 (3) A

DO2, DO5, DO6, DO7

Max. 240 V AC , Min. 28 V AC Max. 0.5 A Leak < 1 mA Max. 1 pcs. coil

CE (250 V AC) IBExU approved

4 (3) A

DI1

Digital input signal. The deﬁned function is active when the input is short-circuited/ opened. The function is deﬁned in o02.

DI2

Digital input signal. The deﬁned function is active when the input is short-circuited/ opened. The function is deﬁned in o37.

Analogue output (only application 2) 0 - 10 V signal for compressor speed control.

S7, S3, S4, S5, S6

Pt 1000 ohm

S7, brine sensor, placed in the cold inlet before the heat exchanger S3, air sensor, placed in the warm air before the evaporator S4, air sensor, placed in the cold air after the evaporator

(the need for either S3 or S4 can be deselected in the conﬁguration)

S5, defrost sensor, placed on the evaporator S6, product sensor

2 | AN234086440123en-000301

EKA Display

If there is a need for external reading/operation of the controller, display type EKA 163B or EKA 164B can be connected.

RS485 (terminal 51, 52, 53)

For data communication, but only if a data communication module is inserted in the controller. The module can be a LON RS485, DANBUSS or a MODBUS. Terminal 51 = screen Terminal 52 = A (A+) Terminal 53 = B (B-) (For LON RS485 and gateway type AKA 245, the gateway must be version 6.20 or higher.)

RJ45

For data communication, but only if a TCP/IP module is inserted in the controller. (OEM)

MODBUS

For data communication. Terminal 56 = screen Terminal 57 = A+ Terminal 58 = B(Alternatively the terminals can be connected to an external display type EKA 163A or 164A, but then they cannot be used

for data communication. Any data communication must then be carried out by one of the other methods.)

Supply voltage

230 V AC, 50/60 Hz

DO1

Compressor 1 (only application 1 and 3)

Connection of relay. The coil must be a 230 V AC coil.

DI3

Digital input signal

Safety circuits compressor 1 and 2 The signal must have a voltage of 0 / 230 V AC

Data communication

If data communication is used, it is important that the installation of the data communication cable is performed correctly. See separate literature No. RC8AC…

DO2

Alarm

There is a connection between terminal 7 and 8 in alarm situations and when the controller is without power.

DO3

Compressor 2

There is connection between terminal 10 and 11 when the compressor is on.

DO4

Defrost

There is connection between terminal 12 and 14 when defrosting takes place.

DO5

Fan

There is connection between terminal 15 and 16 when the fan is on.

DO6

Light relay

There is connection between terminal 17 and 18 when the light must be on.

DO7

Rail heat

There is connection between terminal 20 and 21 when the rail heat is on.

Electric noise

Cables for sensors, DI inputs and data communication must be kept separate from other electric cables:

- Use separate cable trays

- Keep a distance between cables of at least 10 cm

- Long cables at the DI input should be avoided

Installation considerations

Accidental damage, poor installation, or site conditions, can give rise to malfunctions of the control system, and ultimately lead to a plant breakdown.

Every possible safeguard is incorporated into our products to prevent this. However, a wrong installation, for example, could still present problems. Electronic controls are no substitute for normal, good engineering practice.

Danfoss wil not be responsible for any goods, or plant components, damaged as a result of the above defects. It is the installer's responsibility to check the installation thoroughly, and to ﬁt the necessary safety devices.

Special reference is made to the necessity of signals to the controller when the compressor is stopped and to the need of liquid receivers before the compressors.

Your local Danfoss agent will be pleased to assist with further advice, etc.

Coordinated defrost via

max. 10

cable connections The following controllers can be connected

up in this way: EKC 204A, AK-CC 210, AK-CC 250, AK-CC 450, AK-CC 460, AK-CC 550, AK-CC 55.

Refrigeration is resumed when all controllers have “released” the signal for defrost.

Coordinated defrost via data communication

The setting of controllers to coordinate their defrosting takes place in the gateway/ system manager.

Refrigeration is resumed when all controllers have “released” the signal for defrost.

AN234086440123en-000301 | 3

+ 7 hidden pages