Quick Start - Danfoss EKC 531D1 Instructions

Menu survey
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.
Function
Normal display
Shows P0 in EKA 165 (display with buttons)
Shows Pc in EKA 163
P0 reference
Neutral zone
Correction of signal from P0 sensor
Select unit (0=bar and °C, 1=Psig and °F)
Start/Stop of regulation
Reference offset for P0 (see also r27)
Set regulation setpoint for P0
Shows total P0 reference
( r23 + various displacements)
Limitation: P0 reference max. value
(also applies to regulation with reference displacement)
Limitation: P0 referencen min. value
(also applies to regulation with reference displacement)
Displacement of P0 (ON=active "r13")
Pc reference
Set regulation setpoint for Pc
Shows total Pc reference
Limitation: Pc referencen max. value
Limitation: Pc referencen min. value
Correction of signal from Pc sensor
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)
Reference offset for Pc
The mean temperature difference across the condenser at
maximum load (dim tm K)
The mean temperature difference across the condenser at
the lowest relevant compressor capacity (min tm K)
This is where you can see the actual pressure (P0) that is
being measured by the pressure transmitter.
This is where you can see the actual pressure (T0) that is
part of the regulation. From the sensor which is defined
in "o81"
Capacity
Min. ON time for relays
Min. time period between cutins of same relay
Definition of regulation mode
1: Sequential (step mode / FILO)
2: Cyclic (step mode / FIFO)
3: Binary and cyclic
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
6
Para-
meter
1
- °C
- °C
r01
r04
r05
r12
r13
r23
r24
r25
r26
r27
r28
r29
r30
r31
r32
r33
r34
r35
r56
r57
r58
c01
c07
c08
c09
Instructions RI8HU452 © Danfoss 10/2006
o61 =
Min.
2 3 4
P °C P °C / bar
P °C P °C / bar
0.1°C / 0.1 bar
-50°C /-5.0 bar
0
OFF
-50°C / -5.0 bar
-99°C / -1 bar
-99°C / -1.0 bar
-99°C / -1.0 bar
OFF
-25°C / 0.0 bar
-99.9°C / -0.0 bar 99.9°C / 60.0 bar 55.0°C / 60.0 bar
-99.9°C / 0.0 bar
-50°C / -5.0 bar
1
-50°C / -5.0 bar
3.0
3.0
0 min
0 min.
1
0
SW: 1.3x
Max. Factory
setting
20°C /5.0 bar 4.0°C / 0.4 bar
50°C / 5.0 bar 0.0
1 0
ON OFF
50°C / 5.0 bar 0.0
30°C / 60.0 bar 0.0°C / 3.5 bar
°C / bar
30°C / 60.0 bar 30.0°C / 40.0 bar
30°C / 40.0 bar -99.9°C / -1.0 bar
ON OFF
75°C / 60.0 bar 35°C / 15.0 bar
°C / bar
99.9°C / 60.0 bar -99.9°C / 0.0 bar
50°C / 5.0 bar 0.0
4 1
50°C / 5.0 bar 0.0
50.0 10.0
50.0 8.0
°C / bar
°C
30 min. 0
60 min 4
3 1
1 0
To be continued
EKC 531D1