Danfoss AK-PC 560 User Manual page 18

Connections
Necessary connections
Terminals:
1-2 Supply voltage 24 V a.c.
4-5 Relay outputs for digital scroll compressor
6-7 Solid state relay for digital scroll compressor's unloader
8- 19 Relay outputs for either compressors or fan motors
22-24 Alarm relay *
There is connection between 22 and 24 in alarm situa tions
and when the controller is dead
27-28 24 V signal to start / stop of regulation
27-29 24 V signal from the safety circuit Digital scroll
30 No function
27-31 24 V signal from the safety circuit DO 3
27-32 24 V signal from the safety circuit DO 4
27-33 24 V signal from the safety circuit DO 5
27-34 24 V signal from the safety circuit DO 6
27-35 24 V signal from the safety circuit DO 7
27-36 24 V signal from the safety circuit DO 8
57-59 Suction pressure. Voltage signal from AKS 32R **
60-62 Condenser pressure. Voltage signal from AKS 32R **
*)
Relays DO9 and DO10 may in special cases be reconfigurated so that they can be
used as fan relays. See also page 8.
18
24 V
Manual RS8GE202 © Danfoss 01-2016
Application dependent connections
20-21 AKD start/stop *
The relay cutin when the frequency converter have to
start.
37-38 Voltage signal to external condenser control
(see settings page 12)
39-41 Possibility of connecting an external display type EKA 163
or display of Pc
42-44 Possibility of connecting an external display type EKA 163
for display of P0, or EKA 165 for operation and display of
P0
45-46 DI1 - Contact function for alarm signal
45-47 DI2 - Contact function for alarm signal
48-49 DI3 - Contact function for alarm signal
48-50 DI4 - Contact function for displacement of the suction
pressure reference or for alarm signal.
51-52 DI5 - Contact function for displacement of the condenser
pressure reference or for alarm signal.
51-53 Separate sensor Saux. Discharge gas temperature.
Sensor signal from Pt 1000 (AKS 21) or Copeland-NTC and
with supplied resistor mounted.
54-55 Outdoor ambient temperature (Sc3). Sensor signal from Pt
1000, AKS 11 or AKS 21 (mounted if r33 = 2 or 4).
54-56 Air temperature at condenser outlet. Sensor signal from a
Pt 1000, AKS 11 or AKS 21.
Data communication
25-26 Mount only, if a data communication module has been
fitted.
For ethernet communication the plug connection RJ45
must be used. (LON FTT10 can also be connected in this
way.
It is important that the installation of the data communi-
cation cable be done correctly. Cf. separate literature No.
RC8AC.
**)
If the controller has to control only the compressor or the fans, respectively Pc and P0
sensor can be dispensed
P0/Pc: AKS 32R:
1 = Black = +
2 = Blue = -
3 = Brown = s
(R=1680 ohm)
All inputs are low-voltage.
Relay output 1-8 are low volt-
age.
Relay output 9 and 10 may be
high voltage.
AK-PC 560