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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
E2
Regulation out of range or control signal is defect.
A1
High pressure alarm
A2
Low pressure alarm
A11
No refrigerant selected
Alarm message
Regulation stopped due to interrupted signal on
A12
the DI input
A45
Regulation is stopped
PS
Password is required
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. Push one of the buttons and find the parameter you want
to change
3. Push 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 / pres-
sure transmitter
Reference
Set the regulation's set point
Neutral zone
Correction of signal from the sensor
Select SI or US display:
0=SI (bar/°C). 1=US (Psig/°F)
EKC 331T
ENGLISH
SW: 2.0x
Para-
Factory
Min.
Max.
meter
setting
-
°C
-
-60 °C
170 °C
3
r01
0,1 K
20 K
4.0
r04
-20 K
20 K
0.0
r05
c-b
F-P
c-b
Instructions RI8GZ453 © Danfoss 08/2012
Start / stop of regulation (0=off )
Reference displacement by signal at DI input
Reference limitation. Max. value
Reference limitation. Min. value
Diplacement of reference (On=activ "r13")
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
Cutin capacity at manual control. See also "c32"
Manual control of capacity (when On the value in
"c31" will be used*)
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
Inverse function (HE: heating at relays = on)
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
Pressure transmitter's working range - max. value
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 1000)
Operating hours of relay 2 (value times 1000)
Operating hours of relay 3 (value times 1000)
Operating hours of relay 4 (value times 1000)
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. 31=R422A. 32=R413A.
33=R422D. 34=R427A. 35=R438A. 36=XP10.
37=R407F.
*) This setting will only be possible if a data communication moduel has been installed in
the controller.
r12
0
1
0
r13
-50 K
50 K
0
r25
-50°C
170°C
50°C
r26
-60°C
50°C
-60°C
r27
Off
On
Off
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
0,1 K
20 K
3
c14
0,1 min. 60 min. 1
c15
1 s
180 s
30
c31
0%
100%
0%
c32
Off
On
Off
A03
1 min.
90 min. 30
A10
-60 °C
170 °C
50
A11
-60 °C
120 °C
-60
o03*
1
240
0
o04*
-
-
-
o05
off(-1)
100
-
o07
rE
HE
rE
o10
0
11
0
o12
50 Hz
60 Hz
50
o18
0
4
0
o19
1
4
4
o20
-1 bar
5 bar
-1
o21
6 bar
199 bar 12
o22
0
3
0
o23
0 h
99,9 h
0
o24
0 h
99,9 h
0
o25
0 h
99,9 h
0
o26
0 h
99,9 h
0
o30
0
37
0
5
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