Danfoss ADAP-KOOL AK-PC 783 - Page 6

6 Capacity controller RS8GN202 © Danfoss 11-2013 AK-PC 783
Alarm
Error
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 dene the measurements you wish
to be shown.
The collected values can be printed, or you may export them to a
le. You can open the le in Excel.
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 conrm that you have seen the alarm you can cross it o in the
acknowledge eld.
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.
Trouble-shooting
The controller contains a function that continuously follows
a number of measurements and deals with them. The result
indicates whether the function is OK or whether an error may be
expected within a given period of time (“the trip down the roller
coaster has started”). At this time an alarm is transmitted about
the situation – no error has appeared as yet, but it will come.
One example may be slow clogging-up of a condenser. When the
alarm comes the capacity has been reduced, but the situation is
not serious. There will be time to plan a service call.
■ Power
■ Comm
■ DO1 ■ Status
■ DO2 ■ Service Tool
■ DO3 ■ LON
■ DO4 ■ I/O Extension
■ DO5 ■ Alarm
■ DO6
■ DO7
■ DO8 ■ Service Pin
Slow ash = OK
Quick ash = answer from gateway
Constantly ON = error
Constantly OFF = error
Flash = active alarm/not cancelled
Constant ON = Active alarm/cancelled