Danfoss ICAD 600B Actuator Motorized valve control Installation Guide

Danfoss ICAD 600B Actuator Motorized valve control

Product Information

Specifications

• Product Name: ICAD 600B / 600B-TS / 1200B
• Control: Power Data
• Analog I/O for modulating control
• Digital I/O for ON/OFF valve operation
• Class: Class III product
• Supply Voltage: 24 V DC 2A or more per ICAD recommended PSU

Product Usage Instructions

Installation
Do not install ICAD before welding. This applies to both electrical and mechanical installations. Note that when connected to 24 V DC, ICAD may emit acoustic noise at standstill, which does not affect its operation.

Compatible Valves
ICAD 600B, ICAD 600B-TS, and ICAD 1200B can be used with the following Danfoss valves:

• ICAD 600B: ICM 20, ICM 25, ICM 32
• ICAD 600B-TS: ICMTS 20, ICMTS 50, ICMTS 80
• ICAD 1200B: ICM 40, ICM 50, ICM 65, ICM 100, ICM 125, ICM 150, CVE pilot valve

Electrical Data
The supply voltage is galvanically isolated from the input/output. Ensure that the power supplies connected to ICAD are SELV-rated.

FAQ

• Q: Can ICAD be installed before welding?
  A: No, ICAD should not be installed before welding, both for electrical and mechanical installation processes.

• Q: What should I do if ICAD emits acoustic noise at standstill?
  A: The acoustic noise emitted by ICAD when connected to 24 V DC at standstill does not impact its operation.

Installation

Do not install ICAD before welding. This apply for electrical as well as for mechanical installation. Please observe that ICAD when connected to 24 V DC, will send out acoustic noise at stand still. This has no influence on the function/ operation of the ICAD.

Use
ICAD 600B, ICAD 600B-TS and ICAD 1200B can be used together with the following Danfoss valves (FIg. 1, 5a and 5b).

Electrical data

Supply voltage is galvanically isolated from in-/output. ICAD is a Class III product. PSUs connected to ICAD must be SELV<100 VA For UL compliance: PSU must be Class 2 NEC

Supply voltage

• 24 V DC (Tolerances; see below table)
• Load
  • ICAD 600B, ICAD 600B-TS: 1.2 A
  • ICAD 1200B: 2.0 A

24 Volt DC ONLY

Please observe cable voltage drop.
Distance between the applied DC transformer and the ICAD terminal box may cause a voltage drop. Cross section of cables and size of DC transformer must be calculated so that the voltage at all time at the ICAD terminal box*, both during standstill and during operation of ICAD, is within this range:

Do not measure inside the ICAD itself (value can be checked in ICAD B menu).

Fail safe supply

• 24 V DC (Tolerances; see table above)
• Load
  • ICAD 600B, ICAD 600B-TS: 1.2 A
  • ICAD 1200B: 2.0 A

Data communication
RS 485: It is important that the installation of the data communication cable is done correctly. For further guidance, see literature No. RC8AC902. Remember termination at the bus termination. Max lenght of cable: 1200 m with specific cable and limited data rate. Follow RS485 standard.

Insulation from power supply input, metallic part and interface output : 500 V DC: *For input/output connections

• Anolog Input – Current or Voltage
  • Current
  • Input range: 0/4 – 20 mA
  • Max input range: 0 – 24 mA
  • Input resistance: 120 W + diode voltage 0.7 V DC
  • Measurement error: <±1.5% of the full scale
  • Reverse polarity protection: yes
  • Overcurrent protection: yes
  • Voltage
  • Input range: 0/2 – 10 V DC
  • Max input range: 0 – 12 V DC
  • Measurement error: <±1.5% of the full scale
  • Reverse polarity protection: yes
• Analog Output
  • Output range: 0/4 – 20mA
  • Load: <800 W
  • Output error: <±1.5% of the full scale
  • Recommended external resistor for Hot application: Rext=800 W-load 1W power rate

Digital Input – Digital ON/OFF input by means of voltfree contact (Signal/Telecom relays with gold-plated contacts recommended) – Voltage input used

• Rth rise(OFF): >10 kW
• Rth fall(ON): < 45 W

Digital Output – 3 pcs. NPN transistor output

• External supply:

  • 7 – 24 V DC (same supply as for ICAD can be used, but please note that the galvanically isolated system will then be spoiled).

• On resistance:

  • 55 W + diode voltage 0.7 V DC
  • Max 70 W at 50 mA
  • Max Output current: 50 mA
  • Reverse polarity protection: Yes
  • Overcurrent protection: No

• Temperature range (ambient)
  -30 °C/+50 °C (-22 °F/122 °F)

• Enclosure
  IP67 (~NEMA 6)

• Electrical connection
  Connection to ICAD is done via M12 connectors. ICAD has two M12 male and one M12 female connectors build-in:

Power supply: 4 poled M12 male connector
Control signals: 8 poled M12 male connector
Data communication: 4 poled M12 female connector

Power Supply cable with 4 poled M12 female connector

Control cable with 8 poled M12 female connector

Data communication cable with 4 poled M12 male connector:

Electrical installation

General procedure for ICAD 600B/ICAD 600B-TS/1200B installed on all ICM, ICMTS & CVE valves.
All necessary electrical connections to be made.

• Analog operation – 7 wired cable (A-G) Fig. 6
  Modulation control. Valve to be controlled from Danfoss electronics, type EKC/EKE (fig. 7), or third party electronics (like e.g. PLC).

  • Connect analog input signals. Currrent (mA) or

  • Voltage (V). See Parameter list for configuration of analog input signals

  • Yellow (+) and Orange (GND) are used for current (mA) input
    or

  • Green (+) and Orange (GND) are used for Voltage (V) input

  • Blue (+) and Orange (GND) are used for current (mA) output (optional, not mandatory)

• Digital operation – 7 wired cable (A-G) Fig. 6
  ON/OFF ICM solenoid valve operation. ICM valve to be controlled by means of a digital voltfree contact.

  • Connect digital input signals (fig. 8). See Parameter list for configuration of digital input signals
  • Green (+) and Orange (GND) are connected to a voltfree contact
  • Digital output signals are optional, not mandatory.
  • Black (–) and Orange (GND) are connected to auxiliary relay for Common Alarm
  • Brown (–) and Orange (GND) are connected to an auxiliary relay indicating ICM fully open
  • Red (–) and Orange (GND) are connected to an auxiliary relay indicating ICM fully closed

• Supply voltage – 4 wired cable(I, II, III, IIII)
  ICAD must be connected to a normal 24 V DC supply. As an option, a fail safe supply is possible by means of a battery or UPS (Uninterruptible Power Supply). When voltage is applied as described below, ICAD is ready to be configurated.
  See Parameter list.
  ICAD configuration can be done independently whether the ICAD is installed on the valve or not.
  See Mechanical installation.

• Connect the White (+) and Brown (–) to 24 V DC supply voltage (fig. 6)
  Fail safe supply as an option (not mandatory).

• Connect the Black (+) and Brown (–) to a fail safe supply.

Mechanical installation

General procedure for ICAD 600B/ICAD 600B-TS/1200B installed on all valves (fig. 3).

• Check that the two socket screws are fully unscrewed counter clockwise with a 3 mm Hexagon key
• If valve is fitted with PTFE ring and O-ring, remove both and replace it with O-ring included in ICAD (as instructed in fig. 3)
• Mount ICAD by slowly lowering it on top of the valve.
• The magnet coupling will drag the valve and ICAD together and in position
• Push ICAD in place
• Fasten valve and ICAD with the two socket set screws using a 3 mm Hexagon key

Special moisture seal is damaged if screws are removed (fig. 3).

Power on & start operation

ICAD has a light guide viewable from three sides, which indicates the status. Immediately after power on the light guide and display lights up.

The main screen layout and navigation is as described below. ICAD will start up in alarm mode as the ICM configuration needs to be defined to start operation. Follow the steps on next page to set this up correctly.

Set valve (A1 alarm)

Change analog input signal (optional)
ICAD will function based on factory settings as soon as the valve configuration has been set. The default settings are Modulation using an analog input of 4–20 mA.

Further languages and documentation: www.icadb.danfoss.com

Danfoss A/S
Climate Solutions • danfoss.com • +45 7488 2222
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