Danfoss ADAP-KOOL AK-PC 572 User Manual page 10

Menu
Start/stop
Main switch
Extern Main swich
Plant type
Select Plant type
Mains frequency
Suction MT
Control status MT
Control status
Reference
ToMT temperature
PoMT Pressure
Requested capacity
Running capacity
No. of running comp.
MC PoMT offset
SdMT discharge
temp.
SsMT Suction gas
temp.
Superheat MT
Day / Night status
Load shed
HP Safety switch
Injection ON MT
Liq. inj. suction line
MC Load Shedding
MC Night Setback
Control settings
Control mode
Manual capacity
Setpoint
PI control selection
10
Main switch
Start and stop regulating here.
The configuration settings will require that regulating is stopped.
If you try to enter a configuration setting when regulating has started, the controller will
ask if regulating should be stopped.
When all settings have been made and the main switch is set to "ON", the controller will
enable the display of the various measurements. Regulation will start. (One external main
switch must be "ON" before regulating starts.)
Status on External main switch
It is possible to connect an external switch which can be used to start and stop regulating.
Both the internal and external main switch must be ON before regulating starts.
If the external cutout is omitted, the dedicated input must be shorted.
Plant settings:
The following must be regulated:
• Booster + HP
• MT + HP
Frequency
Set the net frequency
Regulation status
Read the status of the functions in the control circuit here
The total regulation reference can be read here
The measured PoMT pressure converted to temperature can be read here
The measured pressure for the PoMT pressure transmitter can be read here
Here the preferred connected capacity can be read as a % of total capacity
Here the connected capacity can be read as a % of total capacity
The number of compressors in operation can be read here
The size of a reference displacement on PoMT required from the system unit
(suction pressure optimisation function) can be read here
The measured discharge temperature can be read here
The measured suction gas temperature can be read here
The actual superheat can be read here
The status of the day/night function can be read here
The status of the load shed function can be read here
The status of the security circuit can be read here
The status of the injection ON signal sent to the evaporator controllers can be read here
The status of hte liquid injection in the suction line can be read here
The status of the load shed signal received from the system device can be read here
The status of the night increase signal received from the system device can be read here
Regulation settings
Regulation type
The regulation is normally set to "Auto", but it can be changed to "Off" or "Manual".
When setting to "Manual", a forced capacity setting can subsequently be entered in %.
Enter the set point for the regulation (regulation reference = set point + different offsets) here
An offset can originate from a night increase signal or from an override function on the
system device.
Set how quickly the PI regulation must react here: 1 = slowly, 10 = very quickly.
User Guide RS8KH202 © Danfoss 2019-03
SW: 1.0x
On / Off
Fac: None
50 Hz / 60 Hz
Fac: 50 Hz
MAN / OFF / AUTO
Fac: AUTO
Min: 0 %
Max: 100%
Min: -55°C
Max: 20°C
Fab: -10°C
Min: 1
Max: 10
Fab: 5
AK-PC 572