Frequently Asked Questions; What Happens In The Event Of A Power Failure; How Much Power Do I Need To Supply To The Icad; How Can I Monitor The Valve Position Remotely - Danfoss ICM User Manual

ICM and ICMTS Motorized Valves with ICAD Actuators
◦ Solution: Change this parameter to the appropriate signal

Frequently Asked Questions

What happens in the event of a power failure?

The ICAD actuator will remain in the position it is in when power is lost. There are two approaches to solving the
issue:
• Add a UPS (Uninterruptible Power Supply) device to the power wiring. This is easily accomplished with the brown
(-) and black (+) wires in the power cable bundle. A UPS device is available from Danfoss and can provide up to 10
amps of power for up to 90 seconds in order to move the valve to the desired position. Because of the high
amperage, the UPS is capable of providing power to several ICAD actuators depending on the size of the actuator.
 NOTE:
The UPS is not a continuous power supply. It is only meant to change the valve position once in the event of a
power failure.
• Add a solenoid valve in front of the ICM in order to stop refrigerant ow. This is a simple solution provided that
there is no issue associated with the additional pressure drop through the solenoid valve

How much power do I need to supply to the ICAD?

The total power required depends on the ICAD size and the number of ICAD's powered by the dc power supply. The
power for each ICAD is:
• ICAD 600B / 600B-TS (ICM 20, 25, and 32) and ICAD 600B-TS (ICMTS 20, 50, and 80), the requirement per valve is
approximately 30 watts
• ICAD 1200B (ICM 40, 50, 65, 100, 125, and 150) the requirement per valve is approximately 50 watts

How can I monitor the valve position remotely?

The control wiring bundle provides for a 4 – 20 mA or 0 – 20 mA signal output with the blue (+) and orange (-) wires.
The signal can be sent to:
• A remote display
• A PLC or PC
• Another ICAD actuator to provide the same input signal (daisy chain)

At what minimum OD%/mA will the ICAD automatically close and calibrate?

The ICAD will automatically close or be closed when the opening degree is below 3% which corresponds to 4.48
mA. After it is closed it will give a few extra steps to calibrate the valve.
If the 4–20 mA signal is lost while the valve is open, will the ICAD close the valve?
Yes, if the input signal is lost while the valve is open, the ICAD will close the valve and ash an A3 alarm which is for
an input error.

How many turns/revolutions with the manual tool will fully open/close ICM valve?

• ICM 20: 1.25 turns
• ICM 25: 2.5 turns
• ICM 32: 3 turns
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