Fault Message - Danfoss Optyma Plus User Manual

Fault message

In an error situation the LED's on the front will flash and the alarm relay will be activated. If you push the top button in this situation you can see the
alarm report in the display.
There are two kinds of error reports - it can either be an alarm occurring during the daily operation, or there may be a defect in the installation.
A-alarms will not become visible until the set time delay has expired.
E-alarms, on the other hand, will become visible the moment the error occurs.
(An A alarm will not be visible as long as there is an active E alarm).
Here are the messages that may appear:
Code / Alarm text via data Description
communication
A2/--- LP alarm Low suction pressure
A11/--- No Rfg. sel. No refrigerant selected
A16 /--- DI2 alarm DI2 alarm
A17 / ---HP Alarm C73 / DI3 Alarm (High / low pressure alarm)
A45 /--- Standby mode Standby position (stopped refrigeration via r12 or DI1-input)
A80 / --- Cond. blocked Air flow has decreased.
A96 / --- Max Disc. Temp Discharge gas temperature is exceeded
A97 / --- Safety alarm Safety function on DI2 is activated
A98 / --- Drive alarm Alarm from speed regulation
E1 /--- Ctrl. Error Faults in the controller
E20 /--- Pc Sensor Err Error on pressure transmitter Pc
E30 /--- Taux Sensor Err Error on Aux sensor, S5
E31/---Tamb Sensor Err Error on air sensor, S2
E32 / ---Tdis Sensor Err Error on discharge sensor, S3
E33 / ---Tsuc Sensor Err Error on suction gas sensor, S4
E39/--- Ps Sensor Err Error on pressure transmitter Ps
Data communication
The importance of individual alarms can be defined with a setting. The setting must be carried out in the group "Alarm destinations"
Settings from Settings from
System manager AKM (AKM destination)
High 1
Middle 2
Low 3
Log only
Disabled
12
Log
X
X
X
X
User Guide RS8GD602 © Danfoss 2015-10
Action
See instructions for the condensing unit
Set o30
Check the function that sends a signal at the DI2 input
See instructions for the condensing unit
r12 and/or DI1 input will start the regulation
Clean the condensing unit
See instructions for the condensing unit
Check the function that sends a signal at the DI2 input
and the direction of rotation of the compressor
Check speed regulation
Check sensor and connection
Alarm relay
Non High Low-High
X X
X
X
Send via
Network
X
X
X
Optyma Plus
TM