Emerson VSR, VSM, VSS ICM/ICAD Motorized Valve, Installation, Programming, and Troubleshooting

ICM/ICAD Motorized Valve	Installation, Programming, and Troubleshooting
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)

Electrical Data

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 Ω

Voltage

0/2 - 10 V d.c. Load: 10 kΩ

Analog output 0/4 - 20 mA Load: ≤ 250 Ω

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 Ω)

OFF: contact impedance > 100 kΩ

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	Ω
Load:	Max. 50 mA

Danfoss (USCO / MKS), 11 - 2006 DKRCI.EI.HT0.A1.22 / 520H1639 5