AK-CC
460
Instructions RI8SE202 © Danfoss 07/2017
9
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
-
A97/--- Comp. Safety
Compressor safety. Signal from
DI3 input
8
AA3/---High brine temp.
High brine temperature alarm
8
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
E50/--- S7 error
Error on S7 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
Operating status
(Measure-
ment)
The controller goes through some regulating situ-
ations where it is just waiting for the next point
of the regulation. To make these “why is nothing
happening” situations visible, you can see an op-
erating status on the display. Push briefly (1s) the
upper button. If there is a status code, it will be
shown on the display. The individual status codes
have the following meanings:
Ctrl. state:
(Shown in
all menu
displays)
Normal regulation
S0
0
Waiting for end of the coordinated defrost
S1
1
When the compressor is operating it must run for
at least x minutes.
S2
2
When the compressor is stopped, it must remain
stopped for at least x minutes.
S3
3
The evaporator drips off and waits for the time to
run out
S4
4
Refrigeration stopped by main switch. Either with
r12 or a DI-input
S10
10
Refrigeration stopped by thermostat
S11
11
Defrost sequence. Defrost in progress
S14
14
Defrost sequence. Fan delay — water attaches to
the evaporator
S15
15
Refrigeration stopped due to open ON input or
stopped regulation
S16
16
Door is open. DI input is open
S17
17
Melt function in progress. Refrigeration is inter-
rupted
S18
18
Modulating thermostat control
S19
19
Emergency cooling due to sensor error *)
S20
20
Manual control of outputs
S25
25
Case cleaning
S29
29
Delay on outputs during start-up
S32
32
Case shut down
S45
45
Other displays:
The defrost temperature cannot be displayed.
There is stop based on time
non
Defrost in progress / First cooling after defrost
-d-
Password required. Set password
PS
Regulation is stopped via main switch
OFF
*) Emergency cooling will take effect when there is lack of signal from a
defined S3 or S4 sensor. The regulation will continue with a registered
average cutin frequency. There are two registered values – one for day
operation and one for night operation.
AD
AP
-K
OOL®