6 RS8HP102 © Danfoss 2018-09 AK-CC 750A
Light-emitting diodes
A number of light-emitting diodes makes it possible to follow the
signals that are received and transmitted by the controller.
Log
From the log function you can define the measurements
you wish to be shown.
The collected values can be printed, or you may export them to a
file. You can open the file in Excel or import in AKM.
(The Log function is only available via AK-ST 500.)
If you are in a service situation you can show measurements in a
trend function. The measurements are then made real-time and
displayed instantly.
Alarm
The display gives you an overview of all active alarms. If you wish
to confirm that you have seen the alarm you can cross it off in the
acknowledge field.
If you want to know more about a current alarm you can click on it
and obtain an information display on the screen.
A corresponding display exists for all earlier alarms. Here you can
upload information if you need further details about the alarm
history.
Adaptive defrost
AK-CC 750A is equipped with an adaptive defrost function. By
using an AKV valve (ETS/CCMT Valve) as mass flow sensor for the
supply of refrigerant the control can monitor ice formation on the
evaporator.
Function can cancel planned defrosts which are not necessary,
and on its own initiative start a defrost if the evaporator is about
to be blocked by rime and ice.
Slow flash = OK
Quick flash = answer from gateway/
installed in network
Constantly ON = error
Constantly OFF = error
Flash = active alarm/not acknowledged
Constant ON = Active alarm/acknowl-
edged
(ETS)
■ Power
■ Comm
■ DO1 ■ Status
■ DO2 ■ Service Tool
■ DO3 ■ LON
■ DO4 ■ I/O Extension
■ DO5 ■ Alarm
■ DO6
■ DO7 ■ Display
■ DO8 ■ Service Pin
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