10
Determine the connection points
All connections must be programmed with module and point, so
in principle it does not matter where the connections are made, as
long as it takes place on a correct type of input or output.
• The controller is the first module, the next one is 2, etc.
• A point is the two or three terminals belonging to an input or
output (e.g. two terminals for a sensor and three terminals for a
relay).
The preparation of the connection diagram and the subsequent
programming (configuration) should take place at the present
time. It is most easily accomplished by filling in the connection
survey for the relevant modules.
Principle:
Name
On module
fx Compressor 1
fx Compressor 2
fx Alarm relay
fx Main switch
fx P0
The connection survey from the controller and any extension
modules are uploaded from the paragraph "Module survey. E.g.
controller module:
Signal
Example continued
Signal
Discharge temperature - Sd
Suction gas temperature- Ss
Compressor control - Sctrl
External main switch
"Pump control" - S7
Suction pressure - P0
Discharge pressure - Pd
Level switch, oil, comp.1
Level switch, oil, comp.2
Level switch, oil, comp.3
Level switch, oil, comp.4
Solenoid valve, oil , comp. 1
Solenoid valve, oil , comp. 2
Solenoid valve, oil , comp. 3
Solenoid valve, oil , comp. 4
Solenoid valve, oil, Receiver
Alarm
Room fan
AKD compressor control
AKD pump control
AK-HP 780
On Point
Function
x
x
Close
x
x
Close
x
x
NC
x
x
Close
x
x
AKS 32R 1-6 bar
Module
Point
Terminal
1 (AI 1)
1 - 2
2 (AI 2)
3 - 4
3 (AI 3)
5 - 6
4 (AI 4)
7 - 8
Module
Point
Terminal
1 (AI 1)
1 - 2
2 (AI 2)
3 - 4
3 (AI 3)
5 - 6
4 (AI 4)
7 - 8
5 (AI 5)
9 - 10
6 (AI 6)
11 - 12
7 (AI 7)
13 - 14
8 (AI 8)
19 - 20
9 (AI 9)
21 - 22
10 (AI 10)
23 - 24
1
11 (AI 11)
25 - 26
12 (DO 1)
31 - 32
13 (DO 2)
33 - 34
14 (DO 3)
35 - 36
15 (DO 4)
37 - 38
16 (DO 5)
39 - 40 - 41
17 (DO6)
42 - 43 - 44
18 (DO7)
45 - 46 - 47
19 (DO8)
48 - 49 - 50
24
-
25
-
Heat pump controller
Note
The safety relays should not be fitted onto a module
with override changeovers, as they can be put out of
operation by an incorrect setting.
Signal type /
Active at
- Columns 1, 2, 3 and 5 are used for the programming.
- Columns 2 and 4 are used for the connection diagram.
Signal type /
Signal
Active at
Pt 1000
Level switch, oil, receiver High
Pt 1000
Level switch, oil, receiver Low
Pt 1000
Level switch, oil, Separator
Closed
Level switch, CO2 receiver
Pt 1000
Pulse reset of stopped compressor
AKS 2050-59
Thermostat sensor in engine room
AKS 2050-159
- Saux1
Closed
Closed
Oil receiver, Prec
Closed
Compressor 1
Closed
Compressor 2
ON
Compressor 3
ON
Compressor 4
ON
Start signal to AKD for the pump
ON
ON
ON
OFF
ON
0-10 V
0-10 V
Signal
Compressor 1 Gen. Safety
Compressor 2 Gen. Safety
Compressor 3 Gen. Safety
Compressor 4 Gen. Safety
All compressors common safety
RS8GF202 © Danfoss 2015-08
Module
Point
Mind the numbering.
The right-hand part of the
controller module may look like
a separate module. But it isn't.
Module
Point
Terminal
1 (AI 1)
1 - 2
2 (AI 2)
3 - 4
3 (AI 3)
5 - 6
4 (AI 4)
7 - 8
5 (AI 5)
13 - 14
6 (AI 6)
15 - 16
7 (AI 7)
17 - 18
8 (AI 8)
19 - 20
2
9 (DO 1)
25 - 26 - 27
10 (DO 2)
28 - 29 - 30
11 (DO 3)
31 - 32 - 33
12 (DO 4)
34 - 35 - 36
13 (DO 5)
37 - 38 - 39
14 (DO6)
40 - 41 - 42
15 (DO7)
43 - 44 - 45
16 (DO8)
46 - 47 - 48
Module
Point
Terminal
1 (DI 1)
1 - 2
2 (DI 2)
3 - 4
3 (DI 3)
5 - 6
4 (DI 4)
7 - 8
3
5 (DI 5)
9 - 10
6 (DI 6)
11 - 12
7 (DI 7)
13 - 14
8 (DI 8)
15 - 16
Signal type /
Active at
Closed
Closed
Closed
Open
Pulse
Pt 1000
AKS 2050-159
ON
ON
ON
ON
ON
Active at
Open
Open
Open
Open
Open
33
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