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Continued
Function
The menus from either column 1 or column 2 are shown
Amplification factor for superheat
Changes should only be made by trained staff
o56=1; n20=0.4
o56=2; n20=3.0
(Changes to n20 are lost when changing o56)
Definition of superheat control
1=MSS, 2=LOADAP
Value of min. superheat reference for loads under 10%
Max. opening degree
Changes should only be made by trained staff
Number of steps from 0-100% opening degree (only if n03 =5 (user defined))
The display can only show 3 digits, but the setting value is 4 digits. Only the 3 most important are shown, i.e. a reading of
e.g. 250 means a setting of 2500. (Automatic setting when valve is selected in n03)
Number of steps per second
Start backlash (Extra closing steps at 0% opening (in % of n37))
Compensation for spindle play
Integration time for inner loop (TnT0)
Miscellaneous
Controller's address
If the valve's opening degree should be controlled with an external signal, the signal is defined as:
0: no signal,
3: 0-10 V
1: 0-20 mA
4: 1-5 V
2: 4-20 mA
Manual control of outputs:
OFF: no manual control
1: Manual control with "o45" enabled
Working range for pressure transmitter – min. value
Working range for pressure transmitter – max. value
Refrigerant setting
1=R12
7=R13b1
13=User def.
2=R22
8=R23
14=R32
3=R134a
9=R500
15=R227
4=R502
10=R503
16=R401A
5=R717
11=R114
17=R507
6=R13
12=R142b
18=R402A
Manual control of the valve's opening degree. The function can only be operated if "o18" has been set to "1".
This function is only for manual operation.
Selection of control mode:
1=Normal
2 = With inner loop (S media temperature less T0)
Application mode. Menus blanked out so only the shaded menus are seen. See the two columns to the right.
1: Controlling a valve with an analogue signal
2: Superheat regulation
Holding current
Enable high pressure alarm
Overdrive
Open hysteresis is the minimum requested opening degree required before the valve will open. This value cannot be
lower than the Close hysteresis.
Close hysteresis: if the requested opening degree is below this value, the valve will close to 0%. This value cannot be set
higher than the Open hysteresis.
Overdrive enable level. The opening degree needs to be above this value, before the overdrive will become enabled.
When the overdrive is enabled the valve will overdrive once it is closed to 0%
Overdrive protection time. The valve will not overdrive until this time has elapsed after the last overdrive. This prevents
too frequent overdrives. The default is 0 meaning that it is off and doesn't limit overdrives.
Forced overdrive time. The valve is forced to close and overdrive after this time has elapsed. The valve will then open
again to the desired opening degree. The default is 0 meaning it is off and doesn't force close.
Service
Analog input (21-22)
Read status of input DI (20-21)
Temperature at S2 sensor
Superheat
Superheat reference
Read valve's opening degree
Read evaporating pressure
Configuration settings (n03, n37, n38, n39, n40, o03, o30, o56 and o61) available only when regulation is stopped. (r12=off ).
Factory settings are indicated for standard unit (see code number, page 1). Other codenumbers have customized settings.
© Danfoss | DCS (sw) | 2016.08
2: Simulate Alarm off : connection between 24 and 25
3: Simulate Alarm on : connection between 24 and 26
19=R404A
25=R290
31=R422A
20=R407C
26=R600
32=R413A
21=R407A
27=R600a
33=R422D
22=R407B
28=R744
34=427A
23=R410A
29=R1270
35=R438A
24=R170
30=R417A
36=Opteon XP10
Para-
meter
n20
n21
n22
n32
n37
n38
n39
n40
n44
o03
o10
o18
o20
o21
37 =R407F
38 = R1234ze
39 = R1234yf
o30
40 = R448A
41 = R449A
42 = R452A
o45
o56
o61
h22
o99
P67
P68
P69
P70
P71
u06
u10
u20
u21
u22
u24
u25
Application
Factory
Min.
Max.
choice
setting
menu = o61
1
0.0
10.0
0.4/3.0
1
2
1
1 K
15 K
4
0 %
100 %
100
999
10
(9990
262
(100 stp)
stp)
300
5 stp/s
300
stp/s
0%
100%
10
0 stp
100 stp
23 stp
10 s
120 s
30
0
240
240
0
4
0
off / 0
3
Off /0
-1 bar
0 bar
-1.0
1 bar
200 bar
12.0
0
42
0
0 %
100 %
0
1
2
1
1
2
2
1
0%
100%
20%
0 (OFF)
1 (ON)
0 (OFF)
0%
100%
1%
0%
100%
1%
0%
100%
10%
999
0 hours
0
hours
999
0 hours
0
hours
mA (V)
on/off
°C
K
K
%
bar
DKRCC.PI.RP0.B6.51 | 5
2
2
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