User Guide
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Controller for appliance control, AK-CC 450
RS8EU702 | 25
© Danfoss | ADAP-KOOL® | 2015.10
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
High 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
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
-
A70/--- HighTemp.S3B
Temperature alarm. High S3B
1
A71/--- Low Temp.S3B
Temperature alarm. Low S3B
2
A72/--- HighTemp.S6B
Temperature alarm. High S6B
1
A73/--- Low Temp.S6B
Temperature alarm. Low S6B
2
E1/--- Ctrl. error
Faults in the controller
32
E6/--- RTC error
Check clock
32
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
E34/--- S3 error B
Error on S3B sensor
4
E37/--- S5 error B
Error on S5B sensor
4
E38/--- S6 error B
Error on S6B 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 AK-SM
Settings from
AKM (AKM destination)
Send via
Network
High
1
X
Middle
2
X
Low
3
X
Log only
Disabled