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2 Instructions RI8MD352 © Danfoss 4/2008 EKC 326
4 mA = ventil lukket, Valve closed, Ventil geschlossen, Vanne fermée
20 mA = ventil åben Valve open Ventil offen Vanne ouverte
Necessary connections
Terminals:
25-26 Supply voltage 24 V a.c.
20-21 Pt 1000 sensor at gas cooler outlet (S
GC
2
)
14-15 Pressure transmitter type MBS 3000, 0-160 bar, 060G1112
To register the correct pressure it must be mounted as
close as possible to the gas cooler.
2-5 Power output to control the ICMT valve.
Application dependent connections
Terminals:
1-2 Switch function to start/stop regulation.
Open connection produces regulation. Closed will stop
regulation.
12-13 Alarm relay
There is connection between 12 and 13 in alarm situa tions
18-19 Optional. A pressure transmitter can be connected so
that the pressure in the receiver can be monitored. The
pressure transmitter must be an MBS 3000, 0-100 bar,
060G1107. The connection will require an external power
supply to the pressure transmitter.
3-4 Data communication
Mount only, if a data communication module has been
mounted.
It is important that the installation of the data communi-
cation cable be done correctly. Cf. separate literature No.
RC8AC...
DANSK ENGLISH
Tilslutninger
Connections
Nødvendige tilslutninger
Klemme:
25-26 Forsyningsspænding 24 V a.c.
20-21 Pt 1000 føler ved gaskølerafgang (S
GC
2
)
14-15 Tryktransmitter type MBS 3000, 0-160 bar, 060G1112
For at registrere det korrekte tryk skal den monteres så
tæt ved gaskøleren som muligt.
2-5 Strømudgang til styring af ICMT ventil.
Applicationbestemte tilslutninger
Klemme:
1-2 Kontaktfunktion til start/stop af reguleringen.
Åben forbindelse giver regulering. Sluttet vil stoppe
reguleringen
12-13 Alarmrelæet
Der er forbindelse imellem 12 og 13 i alarmsituationer.
18-19 Optional. Der kan tilsluttes en tryktransmitter, så trykket
i receiveren kan følges. Tryktransmitteren skal være en
MBS 3000, 0-100 bar, 060G1107. Tilslutningen vil kræve en
ekstern strømforsyning til tryktransmitteren.
3-4 Datakommunikation
Monteres kun, hvis der også er monteret et datakommuni-
kationsmodul.
Det er vigtigt, at installationen af datakommunikations-
kablet udføres korrekt.
Se separat litteratur nr. RC8AC...
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EKC 326 Instructions RI8MD352 © Danfoss 4/2008 5
Light-emitting diodes (LED) on front panel
The three lowermost LED’s will flash, if there is an error in the regu-
lation.
In this situation you can upload the error code on the display and
cancel the alarm by giving the uppermost button a brief push.
The controller can give the following messages:
E1
Error message
Fault in controller
E15 Cut-out Sgc2 sensor
E16 Shortcircuited Sgc2 sensor
E20
The input signal on terminals 14-15 is outside
the range (PGC signal)
Display
The values will be shown with three digits.
Temperature are to be shown in °C and pressure in bar.
Operation Menu survey
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 push-
ing. 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 simultane-
ously.
Gives access to the menu
(or cutout an alarm)
Gives access to changes
Saves a change
Examples of operations
Set a 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
Control starts when the supply is connected
4 mA = valve closed
20 mA = valve open
Function
Para-
meter
Min. Max.
Factory
setting
Normal display
Shows the current pressure after the gas cooler - bar
Start / stop
Start / stop of regulation r12 OFF (0) On (1) On (1)
Regulating parameters
P: Amplification factor Kp n04 0.5 20 2.0
I: Integration time T n05 10 s 600 s 75
Max. opening degree. of the valve n32 0 100 100
The gas cooler’s max. pressure
This is where you set the maximum pressure per-
mitted in the gas cooler. If the pressure reaches
this value, the valve is fully open.
n69 0 200 90
P-band under n69, so the valve is fully open if
the pressure is n69.
n70 0 60 10
Min. pressure in the receiver
This function is only used if the pressure trans-
mitter Prec is mounted.
n71 0 60 27
P-band to force open the valve if the receiver
pressure is too low
n72 0 60 0
Max. temperature for transcritical regulation n73 0 200 50
Min. temperature for transcritical regulation n74 0 200 29
P-band for the transition from transcritical to
subcritical regulation
n75 0 60 0
Max. temperature for subcritical regulation n76 0 200 26
Min. temperature for subcritical regulation n77 0 200 0
Subcooling for subcritical regulation
Choose whether the subcooling is to be
regulated according to temperature or pressure
reading:
0: Temperature. Also set the value in “n79”.
1: Pressure. Also set the value in “n80”.
n78 0 1 0
Subcooling is required to be regulated according
to temperature
Set the desired subcooling in K.
n79 0 50 1
Subcooling is required to be regulated according
to pressure
Set the desired subcooling in bar.
n80 0 50 3
For Danfoss only
The value should only be changed by specially trained staff.
D: Differentiation time Td (0 = off) n06 0 200 0
The gas cooler’s min. pressure n81 0 200 35
Regulating parameter: TC factor 1 n82 -100 200 2,6
Regulating parameter: TC factor 2 n83 -100 60 0
Regulating parameter: Init_filter n84 0 10 1
Regulating parameter: Sgc2 Filter n85 0 100 1
Regulating parameter: Limit damper n86 -100 200 1
Miscellaneous
Controller’s address o03* 0 119 -
ON/OFF switch (service-pin message) o04* - - -
Set supply voltage frequency o12
50Hz
(0)
60 Hz
(1)
0
Service
Analog output AO (2-5) u08 mA
Read status of input DI u10 on/off
Calculated reference for regulation (desired pres-
sure in the gas cooler)
U03 bar
The output signal to the valve converted into
opening degree
U04 %
The temperature in the gas cooler. Measured
using temperature sensor Sgc.
U05 °C
The pressure in the gas cooler. Measured using
pressure transmitter Pgc.
U06 bar
The pressure in the receiver. Measured using
pressure transmitter Prec, but only if it is
mounted.
U07 bar
*) This setting will only be possible if a data communication module has been
installed in the controller.
Factory setting
If you need to return to the factory-set values, it can be done in this way:
- Cut out the supply voltage to the controller
- Keep both buttons depressed at the same time as you recon nect the supply voltage
ENGLISH
Manual: See RS8EZ
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8 Instructions RI8MD352 © Danfoss 4/2008 EKC 326
The Product contains electrical components
And may not be disposed together with domestic waste.
Equipment must be separate collected with Electrical and Elec-
tronic waste. According to Local and currently valid legislation.
DE-BD
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