Troubleshooting; Overview; Warnings And Alarms - Danfoss ICM User Manual

ICM and ICMTS Motorized Valves with ICAD Actuators

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
No Valve type selected
State of health - UPS
Service overdue
Con guration mode
Bluetooth connection
High supply voltage
Low supply voltage
Table 10: Alarms - Flashing red
Description
Controller fault
AI input error
Low voltage of fail safe Supply
Check supply to ICAD
Calibration extended failed
Internal temperature alarm
POM mode (Preventive Operational
Mode)
SPI connection loss
Failed update
Valve size detection fail
© Danfoss | Climate Solutions | 2024.01
ICAD warning text De nition of event
A1 Warning ON
A14 Warning ON
A15 Warning ON
A16 Warning ON
A17 Warning ON
A18 Warning ON
A19 Warning ON
ICAD alarm text De nition of event
A2 Alarm ON
A3 Alarm ON
A4 Alarm ON
A5 Alarm ON
A6 Alarm ON
A7 Alarm ON
A8 Alarm ON
A9 Alarm ON
A10 Alarm ON
A13 Alarm ON
A20 Alarm ON
Comments
At start-up A1 will be displayed
State of health for UPS battery
Bluetooth connection issue
Supply voltage higher then 24V DC +10%
Supply voltage lower then 24V DC -15%
Comments
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
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
If 5 V < fail safe supply
If supply voltage < 18 V
Check valve type selected. Check presence of foreign body internally
in valve
Temperature for stepper motor component too high. Ventilate/lower
ambient ICAD temperature
If ICAD meets too high torque from ICM valve (increased friction/stick-
ing surfaces) ICAD automatic goes into POM mode to overcome lost
step.
Update of the software failed
Active if ID9 set to 1
BC465027827472en-000102 | 38