Danfoss AK-PC 530 User Manual

AK-PC 530 Manual RS8EJ302 © Danfoss 05-2010 13
Operation
The buttons on the display
When you want to change a setting, the upper and the lower
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 mittle button. When you have changed
the value, save the new value by once more pushing the mittle
button.
EKA 165
To operate the controller and view the evaporation pressure.
If the lowermost key is pressed, the condensation pressure will
be shown briey in the display. (If regulation is based only on the
condensation pressure, the display will always show Pc).
During normal operation the light-emitting diodes in the display
will indicate where regulation is taking place.
Highest + second highest : ++Zone
Second highest : +Zone
"None" : Neutral zone
Second lowest : -Zone
Lowest+ second lowest : - - Zone
The other LEDs on the display will show the functions that are
active:
• Relays for compressors
• Relays for fans
• Input signals for the digital inputs
• The optimization LED will light up when the reference is 2 K or
more over the set point.
EKA 163
If the condensation pressure is to be shown constantly, a display
without operating keys can be connected.
EKA 164
To operate the controller and view the evaporation pressure.
If the lowermost key is pressed, the condensation pressure will be
shown briey in the display.
Like the EKA 165, the LEDs in the display will show where the
regulation is located.
EKA 165
Data communication
If the controller is extended with data communication, the opera-
tion can be performed from a system unit. The parameter names
for the functions can be viewed in the right-hand column on
pages 4–10.
The importance of the alarms that are sent can be dened with
the setting: 1 (High), 2 (Medium), 3 (Low) or 0 (No alarm).
Operation via external display
The values will be shown with three digits, and with a setting you
can determine whether the pressures are to be shown in SI units
(°C / bar) or US units (°F / psig.).
There are three options for the display.
Or short:
1. Push the upper button (long push) until a parameter is shown
2. Push one of the buttons and nd the parameter you want to
change
3. Push the middle button until the setting value is shown
4. Push one of the buttons and select the new value
5. Push the middle button again to conclude the setting
( A brief pushing will show the active alarm codes. See page 17.)
EKA 163
EKA 164

Danfoss AK-PC 530 Specifications

General

Brand	Danfoss
Model	AK-PC 530
Category	Controller
Language	English