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Connections
DI1 DI2
DO1
Overview of outputs and applications.
Application
DO1
DO2
1
See also electrical diagrams earlier in the instruction.
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.
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
EKA Display
If there is be 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)
2
DO2
DO3
DO4 DO5
DO6
DO3
DO4
DO5
DO6
Instructions RI8SE202 © Danfoss 07/2017
DI3
DO7
DO7 DI1 DI2 DI3 AI1 AI2 AI3 AI4 AI5 AI6
• • •
S7
S3
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 a.c., 50/60 Hz
DO1
Compressor 1
Connection of relay. The coil must be a 230 V a.c. coil.
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.
Solid state
DO1
Max. 240 V a.c. , Min. 28 V a.c.
output
(for coil)
Max. 0.5 A
Leak < 1 mA
Max. 1 pcs. coil
CE
(250 V a.c.)
IBExU approved
Relays
DO3, DO4
4 (3) A
DO2, DO5,
4 (3) A
DO6, DO7
S4
S5
S6
AK-CC 460