ICM/ICAD Motorized Valve Installation, Programming, and Troubleshooting
Danfoss (USCO / MKS), 11 - 2006 DKRCI.EI.HT0.A1.22 / 520H1639 5
Wiring the ICAD
Note: The ICAD is powered by a 24 Volt DC power source.
There are two cables pre-mounted and connected to the ICAD motor actuator. Never try to
open the ICAD motor because the special moisture seal will be damaged.
The power cable consists of 3 wires:
Green: (–) common (ground)
Brown: (+) positive from 24VDC power source
White: (+) positive from UPS/battery backup (optional)
The control cable consists of 7 wires:
Yellow: (–) common (ground)
Gray: (+) positive 4-20mA or 0-20mA input to control ICAD motor
Blue: (+) positive 4-20mA or 0-20mA output from ICAD for valve
position feedback
Pink: (+) positive 2-10V or 0-10V input to control ICAD motor. Also used as a
digital input with the yellow wire for on/o solenoid valve operation.
White: common alarm (digital NPN transistor output when combined with
yellow wire)
Brown: indicates ICM is fully open (digital NPN transistor output when combined
with yellow wire)
Green: indicates ICM is fully closed (digital NPN transistor output when combined
with yellow wire)
Supply voltage is galvanically isolated from input and output wires.
Supply voltage
24 V d.c., +10% / -15%
Load ICAD 600: 1.2 A
ICAD 900: 2.0 A
Fail safe supply
Min. 19 V d.c.
Load ICAD 600: 1.2 A
ICAD 900: 2.0 A
Anolog input - Current or Voltage
Current
0/4 - 20 mA
Load: 200 W
Voltage
0/2 - 10 V d.c.
Load: 10 kW
Analog output
0/4 - 20 mA
Load: ≤ 250 W
Digital input - Digital ON/OFF input by means of voltfree contact (Signal/Telecom relays with
gold-plated contacts recommended) – Voltage input used
ON: contact impedance < 50 W)
OFF: contact impedance > 100 kW
Digital output - 3 pcs. NPN transistor output
External supply: 5 - 24 V d.c. (same supply as for ICAD can be used, but please note that the
galvanically isolated system will then be spoiled).
Output load: 50 W
Load: Max. 50 mA
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