Danfoss ICAD 600/900 Actuator Instruction Manual

Overview

The Danfoss ICAD 600 and ICAD 900 are advanced actuators designed for precise control of ICM valves. This document provides comprehensive instructions for their installation, electrical connection, mechanical mounting, and general operation.

Compatibility

ICAD 600 and ICAD 900 actuators can be used with the following Danfoss ICM valves:

ICAD 600	ICAD 900
ICM 20	ICM 40
ICM 25	ICM 50
ICM 32	ICM 65

Installation

Electrical Data

The supply voltage is galvanically isolated from the in-/output signals.

Parameter	Value	Notes
Supply voltage	24 V d.c., +10% / -15%
Load (ICAD 600)	1.2 A
Load (ICAD 900)	2.0 A
Fail safe supply	Min. 19 V d.c.	Load: 1.2 A (ICAD 600) / 2.0 A (ICAD 900)
Analog input (Current)	0/4 - 20 mA	Load: 200 Ω
Analog input (Voltage)	0/2 - 10 V d.c.	Load: 10 kΩ
Analog output	0/4 - 20 mA	Load: ≤ 250 Ω
Digital input	Voltfree contact (Signal/Telecom relays with gold-plated contacts recommended)	ON: contact impedance < 50 Ω, OFF: contact impedance > 100 kΩ
Digital output	3 pcs. NPN transistor output	External supply: 5 - 24 V d.c. Output load: Max. 50 mA. Note: Using the same supply as ICAD may spoil the galvanic isolation.
Temperature range (ambient)	-30°C / +50°C (-22°F / 122°F)
Enclosure	IP 65 (~NEMA 4)

Cable Connection

Two 1.8 m (70.7 in.) cables are premounted.

Supply Cable (3 x 0.34 mm² / ~22 AWG)

I: White (+) 19 - 24 V d.c. fail safe supply (optional).
II: Brown (+) 24 V d.c.
III: Green (-) 24 V d.c.

Control Cable (7 x 0.25 mm² / ~24 AWG)

A: White (-) Digital output. Common Alarm.
B: Brown (-) Digital output. ICM fully open.
C: Green (-) Digital output. ICM fully closed.
D: Yellow (-) GND - Ground.
E: Grey (+) Analog input 0/4-20 mA.
F: Pink (+) Analog input 0/2-10 V / Digital ON/OFF input.
G: Blue (+) Analog output 0/4-20 mA.

Electrical Installation

General procedure for ICAD 600/900 installed on all ICM valves. Ensure all necessary electrical connections are made for analog or digital operation.

Analog Operation

Uses a 7-wired cable (A-G) for modulation control. The ICM valve is controlled by Danfoss electronics (e.g., EKC) or third-party electronics (e.g., PLC).

Connect analog input signals (Current or Voltage). Refer to the Parameter list for configuration.
Grey (+) and Yellow (GND) are used for current (mA) input.
Pink (+) and Yellow (GND) are used for Voltage (V) input.
Blue (+) and Yellow (GND) are used for current (mA) output (optional).

Digital Operation

Uses a 7-wired cable (A-G) for ON/OFF ICM solenoid valve operation, controlled by a digital voltfree contact.

Connect digital input signals. Pink (+) and Yellow (GND) are connected to a voltfree contact.
Digital output signals are optional.
White (-) and Yellow (GND) are connected to an auxiliary relay for Common Alarm.
Brown (-) and Yellow (GND) are connected to an auxiliary relay indicating ICM fully open.
Green (-) and Yellow (GND) are connected to an auxiliary relay indicating ICM fully closed.

Supply Voltage

The ICAD requires a normal 24 V d.c. supply. An optional fail safe supply (battery or UPS) can be used. When voltage is applied, the ICAD is ready for configuration.

Connect the Brown (+) and Green (-) to a 24 V d.c. supply voltage.
For fail safe supply (optional), connect the White (+) and Green (-) to the fail safe supply.

Mechanical Installation

General procedure for mounting ICAD 600/900 on all ICM valves.

Ensure the four socket set screws are fully unscrewed counter-clockwise using a 2.5 mm Hexagon key.
Mount the ICAD by slowly lowering it onto the ICM valve. The magnet coupling will align the actuator and valve.
Fasten the ICM and ICAD together using the four socket set screws with a 2.5 mm Hexagon key.

Note: The special moisture seal can be damaged if screws are removed.

Startup

When voltage is applied for the first time, the ICAD display (Fig. 2) will alternate between showing the actual opening degree and "A1".

"A1" indicates an alarm for "No ICM valve selected". Refer to the Alarms section for details.

An automatic calibration is performed when the correct ICM valve type is entered in parameter ¡26. It is not necessary to perform manual calibration in parameter ¡05. Ensure the correct ICM valve is selected and verified.

General Operation

The ICAD is equipped with an MMI (Man Machine Interface) that allows viewing and changing parameters to adapt the actuator and ICM valve to the specific refrigeration application. Operation is performed using the integrated ICAD MMI (Fig. 2).

MMI Interface and Controls

The MMI consists of:

[Down Arrow Button] (Fig. 2, pos. 1): Decreases the parameter number by 1 with each activation.
[Enter Button] (Fig. 2, pos. 2):
- Press and hold for 2 seconds to access the Parameter list.
- Press and hold to change a parameter value once the list is accessed. Acknowledge and save the change.
- Press and hold for 2 seconds to exit the Parameter list and return to the Opening Degree display.
[Up Arrow Button] (Fig. 2, pos. 3): Increases the parameter number by 1 with each activation.
Display (Fig. 2, pos. 4):
- Normally displays the Opening Degree (OD) of the ICM valve (0-100%).
- If no buttons are activated for 20 seconds, the display reverts to showing the OD.
- Displays the parameter name and its current value.

Display Status Indicators

The display shows status information using text:

Mod: Indicates the ICAD is positioning the ICM valve according to an analog input signal (Current or Voltage).
Low: Indicates the ICM valve is operating as an ON/OFF solenoid valve at low speed, controlled by a digital input signal.
Med: Indicates the ICM valve is operating as an ON/OFF solenoid valve at medium speed, controlled by a digital input signal.
High: Indicates the ICM valve is operating as an ON/OFF solenoid valve at high speed, controlled by a digital input signal.

Alarms

The ICAD can handle and display various alarms. If an alarm is detected, the display will alternate between showing the alarm code and the present Opening Degree.

Description	ICM Alarm Text	Comments
No valve type selected	A1	At start-up, A1 and CA will be displayed.
Controller fault	A2	Internal fault inside electronics.
All input error	A3	Not active if ¡01 = 2 or ¡02 = 2. Conditions apply for AI A > 22 mA (current) or AI A > 12 V (voltage).
Low voltage of fail safe supply	A4	Applies if 5 V d.c. < Fail safe supply < 18 V d.c.
Check Supply to ICAD	A5	Applies if supply voltage < 18 V d.c.

If multiple alarms are active, the one with the highest priority (A1 being highest, A5 lowest) will be displayed.

Any active alarm will activate the Common Digital Alarm output (Normally Open).

Alarms automatically reset when the condition causing them disappears. Previously active but now resolved alarms can be found in parameter ¡11.

Parameter List

The following parameters can be accessed and configured via the MMI.

Display Name	Parameter	Min.	Max.	Factory Setting	Unit	Comments
ICM OD (Opening Degree)	¡00	0	100	-	%	ICM valve Opening Degree displayed during normal operation. Running display value (see ¡01, ¡05).
Main Switch	¡01	1	2	1	-	1: Normal operation. 2: Manual operation. Valve Opening Degree will flash. OD can be entered manually using arrow buttons.
Mode	¡02	1	2	1	-	1: Modulating - ICM positioning according to Analog Input (see ¡03). 2: ON/OFF - operating the ICM valve via Digital Input. See also ¡09.
Analog Input signal	¡03	1	4	2	-	Type of Analog Input signal from external controller: 1: 0-20 mA, 2: 4-20 mA, 3: 0-10 V, 4: 2-10 V.
Speed at ON/OFF and Modulating Mode	¡04	1	100	100	%	Speed can be decreased. Max. speed is 100%. Not active when ¡01 = 2. If ¡02 = 2, display indicates speed (Low, Med, High).
Automatic calibration	¡05	0	1	0	-	Always auto reset to 0. "CA" flashes during calibration. Not active before ¡26 has been operated.
Analog Output signal	¡06	0	2	2	-	Type of A0 signal for ICM valve position: 0: No signal, 1: 0-20 mA, 2: 4-20 mA.
Fail safe	¡07	1	4	1	-	Define condition at power cut when fail safe is installed: 1: Close valve, 2: Open valve, 3: Maintain valve position, 4: Go to OD given by ¡12.
Digital Input function	¡09	1	2	1	-	Define function when DI is ON (short circuited DI terminals) when ¡02 = 2: 1: Open ICM valve (DI = OFF > Close valve), 2: Close ICM valve (DI = OFF > Open valve).
Password	¡10	0	199	0	-	Enter number to access password protected parameters: ¡26.
Old Alarms	¡11	A1	A99	-	-	Old alarms will be listed with the latest shown first. Alarm list can be reset by activating down arrow and up arrow simultaneously for 2 seconds.
OD at powercut	¡12	0	100	50	%	Only active if ¡07 = 4. If fail safe supply is connected and powercut occurs, ICM will go to entered OD.
ICM configuration	¡26	0	6	0	-	NB: Password protected. Password = 11. At first start-up A1 will flash. Enter valve type: 0: No valve selected (Alarm A1 active). 1: ICM20 with ICAD 600, 2: ICM25 with ICAD 600, 3: ICM32 with ICAD 600, 4: ICM40 with ICAD 900, 5: ICM50 with ICAD 900, 6: ICM65 with ICAD 900.

Service Parameters

Display Name	Parameter	Max.	Factory Setting	Unit	Comments
OD %	¡50	100	-	%	ICM valve Opening Degree.
AI [mA]	¡51	20	-	mA	Analog Input signal.
AI [V]	¡52	10	-	V	Analog Input signal.
AO [mA]	¡53	20	-	mA	Analog Output signal.
DI	¡54	1	-	-	Digital Input signal.
DO Close	¡55	1	-	-	Digital Output Closed status. ON when OD < 3 %.
DO Open	¡56	1	-	-	Digital Output Open status. ON when OD > 97 %.
DO Alarm	¡57	1	-	-	Digital Output alarm status. ON when an alarm is detected.
MAS mP SW ver.	¡58	100	-	-	Software version for MASTER Microprocessor.
SLA mP SW ver.	¡59	100	-	-	Software version for SLAVE Microprocessor.

Reset to Factory Setting

Follow these steps to reset the actuator to its factory settings:

Remove the power supply.
Activate the [Down Arrow Button] and [Up Arrow Button] simultaneously.
Connect the power supply.
Release the [Down Arrow Button] and [Up Arrow Button].
When the display on the ICAD (Fig. 2) alternates between showing "CA" and "A1", the factory resetting is complete.

	Danfoss ICM/ICAD Motorized Valves: Installation, Programming, and Troubleshooting Quick Start Guide A comprehensive guide for the installation, programming, and troubleshooting of Danfoss ICM/ICAD Motorized Valves, covering valve identification, wiring, parameter settings, and common issues.
	Danfoss ICM 20-65 Motor Operated Valve Installation Guide This guide provides detailed instructions for the installation, operation, and maintenance of the Danfoss ICM 20-65 motor-operated valve. It covers essential information regarding refrigerants, temperature and pressure ranges, technical data, installation procedures, welding, manual operation, insulation, surface treatment, assembly, tightening, and maintenance.
	Danfoss ICM 20-65 Motor Operated Valve: Installation and Service Instructions Comprehensive guide to installing, operating, and maintaining the Danfoss ICM 20-65 motor-operated valve, including technical specifications, safety information, and declaration of conformity.
	Danfoss ICAD 600A/600A-TS/1200A Actuator Installation Guide This document provides a comprehensive installation guide for Danfoss ICAD 600A, ICAD 600A-TS, and ICAD 1200A actuators. It covers electrical connections, mechanical installation, parameter settings, and troubleshooting for these advanced actuators used with ICM, ICMTS, and CVE valves.
	Danfoss ICAD 600A/1200A Quick Start Guide: Installation and Programming A concise guide for installing and programming Danfoss ICAD 600A and ICAD 1200A industrial valve actuators, covering setup, wiring, voltage considerations, and factory reset.
	Danfoss ICAD 600/900 Actuator: Installation, Operation, and Technical Data Comprehensive guide to the Danfoss ICAD 600 and ICAD 900 actuators, covering installation, electrical data, general operation, parameter settings, alarms, and technical specifications. Includes wiring diagrams and compatibility information.
	Danfoss ICAD Actuator Mechanical Installation Guide for ICM Comprehensive installation guide for Danfoss ICAD Actuators on ICM top parts, detailing mechanical setup for both new and existing ICM units, including procedures for cold or frozen valve conditions.
	Danfoss ICM 100-150 Motor Operated Valve Installation and Maintenance Guide Comprehensive guide for installing and maintaining the Danfoss ICM 100-150 motor operated valve, including technical specifications, assembly, disassembly, and lubrication procedures.

Danfoss ICAD 600 / ICAD 900 Instruction