Specifications

132 RK0YG302 © Danfoss 05/2007
Menu survey
SW =1.2x
EKC 316A
Function
Pa-
ram-
eter
Min. Max.
Fac.
sett.
Normal display
Shows the actual superheat/ valve's opening
degree/ temperature
Dene view in o17
-K
If you wish to see the expansion valve’s actual
opening degree, give the lower button a brief
push (1s). Dene view in o17
-%
Reference
Set the required set point for the thermostat - * -60°C 50°C 3.0
Dierential r01 * 0.1 K 20.0 K 2.0
Units (0=°C+bar /1=°F+psig)
r05 0 1 0
External contribution to the reference r06 -50 K 50 K 0..0
Correction of signal from S2 r09 -10.0 K 10.0 K 0.0
Correction of signal from S3 r10 -10.0 K 10.0 K 0.0
Start/stop of refrigeration r12 OFF On On
Dene thermostat function
(0= no thermostat function, 1=On/o thermostat)
r14
01 0
Alarm
Upper deviation (above the temperature setting) A01 * 3 K 20 K 5
Lower deviation (below the temperature setting) A02 * 1 K 10 K 3
Alarm’s time delay A03 * 0 min. 90 min. 30
Battery monitoring A34 O On O
Regulating parameters
P: Amplication factor Kp n04 0.5 20 3.0
I: Integration time T n05 30 s 600 s 120
D: Dierentiation time Td (0 = o) n06 0 s 90 s 0
Max. value of superheat reference n09 2 K 30 K 10
Min. value of superheat reference n10 1 K 12 K 4
MOP (max = o) n11 0.0 bar 20 bar 20
Signal reliability during start-up. Safety time
period.
Should only be changed by trained sta
n15
0 s 90 s 0
Signal reliability during start-up – Opening
degree’s start value. Should only be changed by
trained sta.
n17
0 100 0
Stability factor for superheat control.
Changes should only be made by trained sta
n18
0105
Damping of amplication around reference
value
Changes should only be made by trained sta
n19
0.2 1.0 0.3
Amplication factor for superheat
Changes should only be made by trained sta
n20 0.0 10.0 0.4
Denition of superheat control
1=MSS, 2=LOADAP
n21
12 1
Value of min. superheat reference for loads
under 10%
n22 1 K 15 K 2
Max. opening degree
Changes should only be made by trained sta
n32 0 % 100 % 100
”n37” to ”n42” are adapted to valve type ETS 50
and should only be changed through the use of
another valve.
Number of steps from 0-100% opening degree
(x10)
(ETS 50 = 263. ETS 100 = 353)
n37
000
stp**
5000
stp **
263
Number of steps per second n38
10
stp/s
300
stp/s
250
Compensation of spindle play at the valve’s
closing point
n39 0 stp 100 stp 50
Compensation of spindle play in the control
range
n40 0 stp 100 stp 100
Valve status when power supply interrupted:
1 = NC, 2 = NO (special application)
n41
12 1
Compensation of spindle play at the closing
point must take place: 1=when the valve opens,
2=when the valve closes
n42 1 2 stp 1
Attenuation factor for inner loop n43 0,1 1 0.4
Integration time for inner loop (TnT0) n44 10 s 120 s 30
Safety value for lower temperature dierence
for inner loop
n45 1 K 20 K 3.0
Miscellaneous
Controller’s address o03*** 0 119 0
ON/OFF switch (service-pin message) o04*** - - -
Dene input signal on the analoge input AIA:
0: no signal,
1: Temperature setpoint. 0-20 mA
2: Temperature setpoint. 4-20 mA
3: Displacement of superheat reference. 0-20 mA
4: Displacement of superheat reference. 4-20 mA
5: Forced control of valve's max. opening degree.
0-20 mA
6: Forced control of valve´s max. opening degree
4-20 mA
o10
06 0
Set supply voltage frequency o12 50 Hz 60 Hz 50
Select display for ”normal picture”
1: Superheat
2: Valve’s opening degree
3: Air temperature
o17
13 1
Manual control of outputs:
OFF: no manual control
1: Relay for solenoid valve: select ON
2: Relay for solenoid valve: select OFF
3: Alarm relay activated (cut out)
4: Forced control of valve's opening degree.
0-20 mA
5: Forced control of valve´s opening degree
4-20 mA
At settings 1-3, ”o45” will be active
o18 o 5 0
Working range for pressure transmitter – min.
value
o20 -1 bar 60 bar -1.0
Working range for pressure transmitter – max.
value
o21 -1 bar
60 bar 12.0
Refrigerant setting
1=R12. 2=R22. 3=R134a. 4=R502. 5=R717.
6=R13. 7=R13b1. 8=R23. 9=R500. 10=R503.
11=R114. 12=R142b. 13=User dened. 14=R32.
15=R227. 16=R401A. 17=R507. 18=R402A.
19=R404A. 20=R407C. 21=R407A. 22=R407B.
23=R410A. 24=R170. 25=R290. 26=R600.
27=R600a. 28=R744. 29=R1270.
o30 0 29 0
Manual control of the valve’s opening degree.
The function can only be operated if ”o18” has
been set.
o45 0 % 100 % 0
Selection of control mode:
1=Normal
2 = With inner loop (T0)
3 = With inner loop (S media temperature less T0)
o56 1 3 1
Service
Analog input AIA (16-17)
u06 mA
Read status of input DI u10 on/o
Thermostat cut-in time u18 min.
Temperature at S2 sensor u20 °C
Superheat u21 K
Superheat reference u22 K
Read AKV valve’s opening degree u24 %
Read evaporating pressure u25 bar
Read evaporating temperature u26 °C
Temperature at S3 sensor u27 °C
Temperature reference u28 °C
Read signal at pressure transmitter input u29 mA
*) Used only when thermostat function (r14 = 1) is selected.
**) The display on the controller can show 3 digits only, but the setting value has
4 digits. Only the 3 most important will be shown. It means f.ex. . 250 will give a
setting of 2500.
***) This setting will only be possible if a data communication module has been
installed in the controller.
Conguration settings available only when regulation is stopped.