AK-PC
520
Instructions RI8NM252 © Danfoss 12/2009
7
Messages can be brought up on the display by briefly pressing the
uppermost key. If there is more than one alarm, they can be scrolled
through
Factory setting
If you need to return to the factory-set values, it can be done in this way:
- Cut out the supply voltage to the controller
- Keep the upper and the lower button depressed at the same time as
you recon nect the supply voltage
Use of DI5-input
0=
not used.
1=
Pc displacment.
2=
alarm function. Alarm="A32"
o37
0
2
0
Pc pressure transmitter’s working range - min. value
o47
-1 bar
0 bar
-1.0
Pc pressure transmitter’s working range - max. value
o48
1 bar
200 bar
34.0
Read temperature at sensor "Saux1"
o49
°C
Operating hours of relay 5 (value time 1000)
o50
0.0 h
99.9 h
0.0
Operating hours of relay 6 (value time 1000)
o51
0.0 h
99.9 h
0.0
Operating hours of relay 7 (value time 1000)
o52
0.0 h
99.9 h
0.0
Operating hours of relay 8 (value time 1000)
o53
0.0 h
99.9 h
0.0
Selection of application
1. Show temperature in display
2: Show pressure in display
o61
1
2
1
2
1
Function for relay output DO9:
0. Start / stop of speed regulation
1. Inject on signal for evaporator control
2. Boost ready (at least one compressor is on)
3. Start /stop of condenser fan
o75
0
3
0
Function for relay output DO10:
0. Alarm relay
1. Start / stop of condenser fan
o76
0
1
0
Definition of alarm message at DI1 signal:
0. Not used
1. Fan failure (A34)
2. DI1 alarm (A28)
o78
0
2
0
Settings at water cooler application
Definition of signal input to the compressor regulation when regulation
with temperature signal:
0. Temperature sensor on 57-58
1. Temperature sensor on Saux
2. Temperature sensor on Sc4
If frost protection is required, the setting must be 1 or 2.
o81
0
2
0
Display connection
Off: EKA 164
On: EKA 165 (extended display with light-emitting diodes)
o82
Off
On
Off
Service
Status on DI1 input
u10
Status on DI2 input
u37
Read temperature at sensor "Sc3"
u44
°C
Read temperature at sensor "Sc4"
u45
°C
Status on DI3 input
u87
Status on DI4 input
u88
Status on DI5 input
u89