Danfoss ICM 25 User Manual

Troubleshooting
Overview
Figure 17: Manual tool
The ICAD actuator has a number of very useful service parameters which should always be consulted rst. In
addition, a manual tool should always be available to manually close the valve completely in the event the ICAD has
failed. When using the manual tool, turn the tool clockwise to open the valve and counterclockwise to close the
valve.
 NOTE:
When rotating the valve manually you are changing the position of the valve to a value dierent than what is in the
actuator’s memory. Therefore, a calibration must be performed when ICAD is remounted to the valve. If power is cut
from the actuator prior to using the manual tool or after the valve has been adjusted, no problem will occur as the
valve will automatically recalibrate itself once power is restored. Power can easily be disconnected and reconnected
by unscrewing and then reconnecting the power cable from the ICAD actuator.
Warnings and Alarms
Table 9: Warnings - Flashing yellow
Description
ICAD warning text
Denition of event
Comments
No Valve type selected
A1
Warning ON
At start-up A1 will be displayed
State of health - UPS
A14
Warning ON
State of health for UPS battery
Service overdue
A15
Warning ON
Conguration mode
A16
Warning ON
Bluetooth connection
A17
Warning ON
Bluetooth connection issue
High supply voltage
A18
Warning ON
Supply voltage higher then 24V DC +10%
Low supply voltage
A19
Warning ON
Supply voltage lower then 24V DC -15%
Table 10: Alarms - Flashing red
Description
ICAD alarm text
Denition of event
Comments
Controller fault
A2
Alarm ON
Internal fault inside electronics. Carry out: 1) Power OFF and Power ON
If A2 still active. 2) Make a Reset to factory setting If A2 still active. Re-
turn ICAD to Danfoss
AI input error
A3
Alarm ON
Not active if ID2 = 2, or ID3 = 4 When ID3 = 0 and AI A > 22 mA When
ID3 = 1 and AI A > 22 mA or AI A < 2 mA When ID3 = 2 and AI A > 12 V
When ID3 = 3 and AI A > 12 V or AI A < 1 V
Low voltage of fail safe Supply
A4
Alarm ON
If 5 V < fail safe supply
Check supply to ICAD
A5
Alarm ON
If supply voltage < 18 V
Calibration extended failed
A6
Alarm ON
Check valve type selected. Check presence of foreign body internally
in valve
Internal temperature alarm
A7
Alarm ON
Temperature for stepper motor component too high. Ventilate/lower
ambient ICAD temperature
A8
Alarm ON
POM mode (Preventive Operational
Mode)
A9
Alarm ON
If ICAD meets too high torque from ICM valve (increased friction/stick-
ing surfaces) ICAD automatic goes into POM mode to overcome lost
step.
SPI connection loss
A10
Alarm ON
Failed update
A13
Alarm ON
Update of the software failed
Valve size detection fail
A20
Alarm ON
Active if ID9 set to 1
ICM and ICMTS Motorized Valves with ICAD Actuators
© Danfoss | Climate Solutions | 2024.01 BC465027827472en-000102 | 38

Danfoss ICM 25 Specifications

General

Brand	Danfoss
Model	ICM 25
Category	Control Unit
Language	English