Danfoss EKE 1A User Manual page 73

Superheat controller and stepper valve driver, Type EKE 1A, 1B, 1C, 1D
8 Alarms and troubleshooting
Depending on the application, the EKE 1x series implements error codes and alarms to help the user troubleshoot
and correct parameters easily. When an alarm occurs, the following actions generally ensue:
• the "Alarm" or "Warning" relay is activated
• an icon and the alarm code are displayed on the screen
The alarms are reset automatically. The alarm is deactivated as soon as the alarm condition ceases. Otherwise, the
user must follow the deactivation procedure once the alarm conditions is over. When the alarm is eliminated the
alarm, relay is deactivated, and the alarm code will no longer be displayed.
Figure 76: LED indication
A
8.1 Alarms
8.1.1 Con guration errors
Table 62: Con guration errors
Label Alarm description Actions during ac‐
tive
E101 Con guration error Auto operation
blocked
E011 No refrigerant selec- Auto operation
ted blocked
E104 SH reference too Auto operation
close to SH close set blocked
point
E105 LOP set point too Auto operation
close to MOP set blocked
point
E129 No sensor con g- Auto operation
ured for S4 blocked
E106 No sensor con g- Auto operation
ured for S3 blocked
© Danfoss | Climate Solutions | 2024.08
A
B
B
Trigger (how the alarm IS How to clear the alarm
raised)
Active when: - D12 and D13 Correct application settings
have the same mapping con g-
uration. - All and AI5 have the
same mapping con guration.
0030 refrigerant set to none Set 0030 refrigerant set to an
actual refrigerant
SH close is used and SH close Disable SH close or correct the
set pint is too close the actual actual SH reference / reference
reference/ reference minimum minimum to have 0.5K di er-
ence to SH close set point
If MOP and LOP is used, Mop Disable MOP or LOP, or adjust
set point - Lop set point must > the di erence on MOP-LOP set
5K point >= 5K
Application need a S4 signal for Disable the functions needing
either thermostat or Min S4. S4 or con gure a S4 signal
but S4 signal is con gured
Thermostat need a S3 signal Disable the functions needing
and no s3 signal is con gured S4 or con gure a S4 signal
Two status LEDs to indicate operational status
• Steady green = power ON
• Flashing green = data transmission /
initialization
• Flickering red = alarm / error condition
Two status LEDs to indicate valve operation
• Flashing red = valve closing
• Steady red = valve fully closed
• Flashing green = valve opening
• Steady green = valve fully open
• Both green and red ashing = valve-related
alarm
Remark
One or more con guration errors is block-
ing operation to start. Check the other ac-
tive alarms to identify the con guration
problem.
No refrigerant is selected, con gure the
correct refrigerant. See "0030 Refrigerant"
SH reference can come to close to the SH
close safety functions et point. which can
result in unstable operation. Keep min.
0.5K separation between minimum SH ref-
erence and N119 SH close set point.
The set point for the 2-pressure safety
function Lop and Mop is to close. Keep
min. 5K separation between NO11 MOP
set point and N140 LOP set point
Operation is con gured to use S4 (media
out) sensor, but no S4 sensor is con gured.
Correct I020 All con guration or AI5 con-
guration and check I042 S4 sensor con g-
uration
Operation is con gured to use S3 (media
in) sensor, but no S3 sensor is con gured,
Correct 1020 All con guration or AI5 con-
guration and check I041 S3 sensor con g-
uration
BC398828796060en-000103 | 73