Danfoss AK-LM 330 Design Manual page 74

Light-emitting diodes on the controller
Internal communication
between the modules:
Quick flash = error
Constantly On = error
Status of output 1-8
■ Power
■ Comm
■ DO1 ■ Status
■ DO2 ■ Service Tool
■ DO3 ■ LON
■ DO4
■ DO5 ■ Alarm
■ DO6
■ DO7
■ DO8 ■ Service Pin
Installation considerations
Accidental damage, poor installation, or site conditions, can give
rise to malfunctions of the control system, and ultimately lead to
a plant breakdown.
Every possible safeguard is incorporated into our products to
prevent this. However, a wrong installation, for example, could
still present problems. Electronic controls are no substitute for
normal, good engineering practice.
Danfoss wil not be responsible for any goods, or plant compo-
nents, damaged as a result of the above defects. It is the install-
er's responsibility to check the installation thoroughly, and to fit
the necessary safety devices.
Special reference is made to the necessity of signals to the
controller when the compressor is stopped and to the need of
liquid receivers before the compressors.
Your local Danfoss agent will be pleased to assist with further
advice, etc.
74
Slow flash = OK
Quick flash = answer from gateway
remains on for 10 mins after network
registration
Constantly ON = error
Constantly OFF = error
External communication
Flash = active alarm/not cancelled
Constant ON = Active alarm/cancelled
Network installation
RS8FR302 © Danfoss 2015-08 AK-LM 330