20
Manual RS8FS402 © Danfoss 2016-03
AK-CC
550A
Miscellaneous
Miscellaneous
Delay of output signal after start-up
After start-up or a power failure the controller’s functions can be delayed so that over-
loading of the electricity supply network is avoided.
Here you can set the time delay.
o01
DelayOfOutp.
Digital input signal - DI1
The controller has a digital input 1 which can be used for one of the following func-
tions:
Off: The input is not used
1) Status display of a contact function
2) Door function. When the input is open it signals that the door is open. The refrig-
eration and the fans are stopped and light switched on. When the time setting in
“A04” is passed, an alarm will be given and refrigeration will be resumed (o89).
3) Door alarm. When the input is open it signals that the door is open. When the time
setting in “A04” is passed, there will be alarm.
4) Defrost. The function is started with a pulse signal. The controller will register when
the DI input is activated. The controller will then start a defrost cycle.
5) Main switch. Regulation is carried out when the input is short-circuited, and regula-
tion is stopped when the input is put in pos. OFF.
6) Night operation. When the input is short-circuited, there will be regulation for
night operation.
7) Thermostat band changeover. Switch to thermostat 2 (r21).
8) Separate alarm function. Alarm will be given when the input is short-circuited.
9) Separate alarm function. Alarm will be given when the input is opened. (For 8 and
9 the time delay is set in A27)
10) Appliance cleaning. The function is started with a pulse signal. See also descrip-
tion on page 5.
11) Forced refrigeration at hotgas defrost when the input is short-circuited.
12) Night cover
13,14) Not used
15) Case shut down when the input is activated.
o02
DI 1 Config.
Definition takes place with the nu-
merical value shown to the left.
(0 = off)
DI state
(Measurement)
The DI input’s present status is shown
here. ON or OFF.
If the controller is built into a network with data communication, it must have an
address, and the master gateway of the data communication must then know this
address.
The address is set between 0 and 240, depending on the system unit and the selected
data communication. If the system unit is gateway type AKA 245, the version must be
6.20 or higher.
o03
The address is sent to the gateway when the menu is set in pos. ON
IMPORTANT: Before you set o04, you MUST set o61. Otherwise you will be transmit-
ting incorrect data.
(The function is not used when the data communication is MODBUS)
o04
Access code 1 (Access to all settings)
If the settings in the controller are to be protected with an access code you can set a
numerical value between 0 and 100. If not, you can cancel the function with setting 0.
(99 will always give you access).
o05
Acc. code
Sensor type for S3, S4, S5
Normally a Pt 1000 sensor with great signal accuracy is used. But you can also use a
PTC 1000 sensor with another signal accuracy.
All the mounted sensors S3-S5 must be of the same type.
o06
SensorConfig
Pt = 0
PTC = 1
Local readout of software version
o08
SW version
Max. standby time after coordinated defros
t
When a controller has completed a defrost it will wait for a signal which tells that the
refrigeration may be resumed. If this signal fails to appear for one reason or another,
the controller will itself start the refrigeration when this standby time has elapsed.
o16
Max HoldTime
Select signal for the display S4%
Here you define the signal to be shown by the display.
S3, S4, or a combination of the two.
With setting 0% only S3 is used. With 100% only S4.
o17
Disp. S4%
Pe. Working range for pressure transmitter - min. value
o20
MinTransPres
Pe. Working range for pressure transmitter - max. value
o21
MaxTransPres
Refrigerant setting
(only if "r12" = 0)
Before refrigeration is started, the refrigerant must be defined. You may choose be-
tween the following refrigerants
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=Userdefined. 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.
38=R1234ze. 39=R1234yf.
Warning: Wrong selection of refrigerant may cause damage to the compressor.
Other refrigerants: Here Setting 13 is selected and then three factors -Ref.Fac a1, a2
and a3 - via AKM must be set.
o30
Refrigerant