Specifications

10 RK0YG302 © Danfoss 05/2007
Menu survey
SW: 1.1x
EKC 331T
Function
Para-
me-
ter
Min. Max.
Factory
setting
Normal display
Shows the signal from the temperature sensor/
pressure transmitter
-
°C
Reference
Set the regulation’s set point -
-60 °C 170 °C 3
Neutral zone r01
0.1 K 20 K 4.0
Max. limitation of set point setting r02
-60 °C 170 °C 50
Min. limitation of set point setting r03
-60 °C 50 °C -60
Correction of signat from the sensor r04
-20 K 20 K 0.0
Select unit (C-b=°C and F-P= °F) r05
C-b F-P C-b
Reference displacement by signal at DI input r13
-50 K 50 K
0
Capacity
Min. ON time for relays
c01 0 min. 30 min 2
Min. time period between cutins of same relay
c07 0 min. 60 min. 4
Denition of regulation mode
1: Sequential (step mode/FILO)
2: Cyclic (step mode/FIFO)
3: Compressor with unloader
c08 1 3 1
If the regulation mode 3 has been selected, the
relays for the unloaders can be dened to:
no: Cut in when more capacity is required
nc: Cut out when more capacity is required
c09 no nc no
Regulation parameter for + Zone
c10 0.1 K 20 K 3
Regulation parameter for + Zone min.
c11 0.1 min. 60 min. 2
Regulation parameter for ++ Zone seconds
c12 1 s 180 s 30
Regulation parameter for - Zone
c13 0 K 20 K 3
Regulation parameter for - Zone min.
c14 0.1 min. 60 min. 1
Regulation parameter for - - Zone seconds
c15 1 s 180 s
30
Alarm
Alarm time delay
A03 1 min. 90 min. 30
Upper alarm limit (absolute value)
A10 -60 °C 170 °C 50
Lower alarm limit (absolute value)
A11 -60 °C 50 °C
-60
Miscellaneous
Controllers address
o03* 1 60 0
On/o switch (service-pin message)
o04* - - -
Access code
o05 o(-1) 100 -
Dene input signal and application:
0: no signal /regulation stopped
1: 4-20 mA pressure transmitter - compressor
reg.
2: 4-20 mA pressure transmitter - condenser reg.
3: AKS 32R pressure transmitter - compressor reg.
4: AKS 32R pressure transmitter - condenser reg.
5: 0 - 10 V relay module
6: 0 - 5 V relay module
7: 5 - 10 V relay module
8: Pt 1000 ohm sensor - compressor reg.
9: Pt 1000 ohm sensor - condenser reg.
10: PTC 1000 ohm sensor - compressor reg.
11: PTC 1000 ohm sensor - condenser reg.
o10 0 11 0
Set supply voltage frequency
o12 50 Hz 60 Hz 50
Manual operation with “x” relays
o18 0 4 0
Dene number of relay outputs
o19 1 4 4
Pressure transmitter’s working range - min. value
o20 -1 bar 0 bar -1
Pressure transmitter’s working range - max. value
o21 1 bar 40 bar
12
Dene DI input:
0: not used
1: Contact displaces reference
2: Contact starts and stops regulation
3: Interrupted contact will cut out the capacity,
and alarm will be given.
o22 0 3 0
Operating hours of relay 1 (value times 10)
o23 0 h 999 h 0
Operating hours of relay 2 (value times 10)
o24 0 h 999 h 0
Operating hours of relay 3 (value times 10)
o25 0 h 999 h 0
Operating hours of relay 4 (value times 10)
o26 0 h 999 h 0
Setting of refrigerant
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. 30=R417A
o30 0 30 0
*) This setting will only be possible if a data communication moduel has been
installed in the controller.