6
Instructions RI8LZ452 © Danfoss 05/2010
AK-PC 530
Menu survey
SW: 1.3x
Sequence
1.
o61 must be set as the first parameter. This parameter determines which of the four operating interfaces are activated. This must be
set via the display keys. It cannot be set via data communication. (Active functions are shown below in shaded fields.)
2.
Quick- start
To get the system up and running quickly so that cooling can be commenced, start it by setting the following parameters (these pa-
rameters can only be set when the regulation is stopped r12=0):
r23, r28 and then either (c08, c09 and c16) or (c17 to 28) – continue with c29, o06, o30, o75, o76, o81 and finally r12=1.
3.
Once the regulation is under way, you can go through the other parameters and adjust them in situ.
To be continued
Function
Para-
meter
o61 =
Min.
Max.
Factory
setting
1
2
3
4
Normal display
Shows P0 in EKA 165 (display with buttons)
-
°C
P
°C
P
°C / bar
Shows Pc in EKA 163
-
°C
P
°C
P
°C / bar
P0 reference
Neutral zone
r01
0.1°C / 0.1 bar
20°C /5.0 bar
4.0°C / 0.4 bar
Correction of signal from P0 sensor
r04
-50°C /-5.0 bar
50°C / 5.0 bar
0.0
Select view; SI or US. 0=SI (bar /°C), 1=US (Psig /°F)
r05
0
1
0
Start/Stop of regulation
r12
OFF
ON
OFF
Reference offset for P0 (see also r27)
r13
-50°C / -5.0 bar
50°C / 5.0 bar
0.0
Set regulation setpoint for P0
r23
-99°C / -1 bar
30°C / 60.0 bar
0.0°C / 3.5 bar
Shows total P0 reference
( r23 + various displacements)
r24
°C / bar
Limitation: P0 reference max. value
(also applies to regulation with reference displacement)
r25
-99°C / -1.0 bar
30°C / 60.0 bar
30.0°C / 40.0 bar
Limitation: P0 referencen min. value
(also applies to regulation with reference displacement)
r26
-99°C / -1.0 bar
30°C / 40.0 bar
-99.9°C / -1.0 bar
Displacement of P0 (ON=active “r13”)
r27
OFF
ON
OFF
Pc reference
Set regulation setpoint for Pc
r28
-25°C / 0.0 bar
75°C / 110.0 bar 35°C / 15.0 bar
Shows total Pc reference
r29
°C / bar
Limitation: Pc referencen max. value
r30
-99.9°C / -0.0 bar 99.9°C/130.0bar 55.0°C / 60.0 bar
Limitation: Pc referencen min. value
r31
-99.9°C / 0.0 bar 99.9°C / 60.0 bar -99.9°C / 0.0 bar
Correction of signal from Pc sensor
r32
-50°C / -5.0 bar
50°C / 5.0 bar
0.0
Pc reference variation.1 and 2 are PI-regulation
1: Fixed reference. “r28” is used
2: Variable reference. Outdoor temperature (Sc3) included
in the reference
3: As 1, but with P-regulation (Xp-band)
4: As 2, but with P-regulation (Xp-band)
r33
1
4
1
Reference offset for Pc
r34
-50°C / -5.0 bar
50°C / 5.0 bar
0.0
The mean temperature difference across the condenser at
maximum load (dim tm K)
r35
3.0
50.0
10.0
The mean temperature difference across the condenser at
the lowest relevant compressor capacity (min tm K)
r56
3.0
50.0
8.0
This is where you can see the actual pressure (P0) that is
being measured by the pressure transmitter.
r57
°C / bar
This is where you can see the actual pressure (T0) that is
part of the regulation. From the sensor which is defined
in “o81”
r58
°C
Capacity
Min. ON time for relays
c01
0 min
30 min.
0
Min. time period between cutins of same relay
c07
0 min.
60 min
4
Definition of regulation mode
1: Sequential (step mode / FILO)
2: Cyclic (step mode / FIFO)
3: Binary and cyclic
c08
1
3
1
If a regulation mode with unloaders is selected, the relay
must be defined to:
0: Cut in when more capacity is required
1: Cut out when more capacity is required
c09
0
1
0
