Operation; Menu Survey - Danfoss EKC 331T Instructions Manual

Operation

Display
The values will be shown with three digits, and with a setting
you can determine whether the temperature are to be shown
in °C or in °F.
Light-emitting diodes (LED) on front panel
There are four LED's on the front panel which will light up
when the relays are operated.
All LED's will flash if there is an error in the regulation. In this
situation you can upload the error code on the display and
cancel the alarm by pushing the top button briefly.
The controller can give the following messages:
E1 Errors in the controller
Error message
Regulation out of range or control signal is
E2
defect.
A1 High pressure alarm
A2 Low pressure alarm
Alarm message
A11 No refrigerant selected
Regulation stopped due to interrupted signal
A12
on the DI input
The buttons
When you want to change a setting, the two buttons will give
you a higher or lower value depending on the button you are
pushing. But before you change the value, you must have
access to the menu. You obtain this by pushing the upper
button for a couple of seconds - you will then enter the column
with parameter codes. Find the parameter code you want to
change and push the two buttons simultaneously. When you have
changed the value, save the new value by once more pushing the
two buttons simultaneously.
Gives access to the menu (or cutout an alarm)
Gives access to changes
Saves a change
Examples of operations
Set the regulation's set point
1. Push the two buttons simultaneously
2. Push one of the buttons and select the new value
3. Push both buttons again to conclude the setting
Set one of the other menus
1. Push the upper button until a parameter is shown
2. P ush one of the buttons and find the parameter you want
to change
3. P ush both buttons simultaneously until the parameter value
is shown
4. Push one of the buttons and select the new value
5. Push both buttons again to conclude the setting

Menu survey

Function
Normal display
Shows the signal from the temperature sensor /
pressure transmitter
Reference
Set the regulation's set point
Neutral zone
EKC 331T
ENGLISH
SW: 1.1x
Para-
Factory
me- Min. Max.
setting
ter
-
°C
- -60 °C 170 °C 3
r01 0.1 K 20 K 4.0
Instructions RI8GZ353 © Danfoss 05/2006
Max. limitation of set point setting
Min. limitation of set point setting
Correction of signat from the sensor
Select unit (C-b=°C and F-P= °F)
Reference displacement by signal at DI input
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: Compressor with unloader
If the regulation mode 3 has been selected, the
relays for the unloaders can be defined to:
no: Cut in when more capacity is required
nc: Cut out when more capacity is required
Regulation parameter for + Zone
Regulation parameter for + Zone min.
Regulation parameter for ++ Zone seconds
Regulation parameter for - Zone
Regulation parameter for - Zone min.
Regulation parameter for - - Zone seconds
Alarm
Alarm time delay
Upper alarm limit (absolute value)
Lower alarm limit (absolute value)
Miscellaneous
Controllers address
On/off switch (service-pin message)
Access code
Define 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.
Set supply voltage frequency
Manual operation with "x" relays
Define number of relay outputs
Pressure transmitter's working range - min. value o20
Pressure transmitter's working range - max. value o21
Define 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.
Operating hours of relay 1 (value times 10)
Operating hours of relay 2 (value times 10)
Operating hours of relay 3 (value times 10)
Operating hours of relay 4 (value times 10)
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 defined. 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
*) This setting will only be possible if a data communication moduel has been
installed in the controller.
r02 -60 °C 170 °C 50
r03 -60 °C 50 °C -60
r04 -20 K 20 K 0.0
r05 C-b F-P C-b
r13 -50 K 50 K 0
c01 0 min. 30 min 2
c07 0 min. 60 min. 4
c08 1 3 1
c09 no nc no
c10 0.1 K 20 K 3
c11 0.1 min. 60 min. 2
c12 1 s 180 s 30
c13 0 K 20 K 3
c14 0.1 min. 60 min. 1
c15 1 s 180 s 30
A03 1 min. 90 min. 30
A10 -60 °C 170 °C 50
A11 -60 °C 50 °C -60
o03* 1 60 0
o04* - - -
o05 off(-1) 100 -
o10 0 11 0
o12 50 Hz 60 Hz 50
o18 0 4 0
o19 1 4 4
-1 bar 0 bar -1
1 bar 40 bar 12
o22 0 3 0
o23 0 h 999 h 0
o24 0 h 999 h 0
o25 0 h 999 h 0
o26 0 h 999 h 0
o30 0 30 0
5