AK-CC 550
Manual RS8EN502 © Danfoss 02-2010
25
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
communication
Description
Alarm relay groups (P41)
A1/--- High t.alarm
H
igh temperature alarm
1
A2/--- Low t. alarm
Low temperature alarm
2
A4/--- Door alarm
Door alarm
8
A5/--- Max hold time
The ”o16” function is activated during a coordinated defrost
16
A10/--- Inject prob.
Control problem
64
A11/--- No Rfg. sel.
No refrigerant selected
64
A13/--- High temp S6
Temperature alarm. High S6
1
A14/--- Low temp S6
Temperature alarm. Low S6
2
A15/--- DI1 alarm
DI1 alarm
8
A16/--- DI2 alarm
DI2 alarm
8
A45/--- Standby mode
Standby position (stopped refrigeration via r12 or DI input)
-
A59/--- Case clean
Case cleaning. Signal from DI input
-
A74/--- AD fault
Error in the adaptive defrost function
16
A75/--- AD Iced
Evaporator is iced up. Reduction of air flow
16
A76/--- AD not defr.
Defrost of evaporator is not satisfactory
16
E1/--- Ctrl. error
Faults in the controller
32
E6/--- RTC error
Change battery and check clock
32
E20/--- Pe error
Error on pressure transmitter Pe
64
E23/--- S1 error
Error on S1 sensor
4
E24/--- S2 error
Error on S2 sensor
4
E25/--- S3 error
Error on S3 sensor
4
E26/--- S4 error
Error on S4 sensor
4
E27/--- S5 error
Error on S5 sensor
4
E28/--- S6 error
Error on S6 sensor
4
E37/--- S5 error B
Error on S5B sensor
4
---/--- Max Def.Time
Defrost stopped based on time instead of, as wanted, on temperature
16
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
System manager
Settings from
AKM (AKM destination)
Log
Alarm relay
Send via
Network
Non
High
Low-High
High
1
X
X
X
X
Middle
2
X
X
X
Low
3
X
X
X
Log only
X
Disabled