IC670ALG621 4-Channel Analog RTD Input Field Control Module

This IC670ALG621 module receives up to 4 independent RTD signals. The IC670ALG621 belongs to the GE Fanuc Field Control series. It operates as part of the Genius Bus control platform. This solid-state intelligent module processes RTD readings in the field. It then transmits digital signals to the corresponding Bus Interface Unit (BIU).

Technical Specifications

The IC670ALG621 features four analog RTD input channels. Each channel accepts signals from independent Resistance Temperature Detectors. The input resistance range spans from 0 to 3276.7 ohms. This module works with multiple RTD types for temperature measurement.

Supported RTD Types:

• 10-Ohm Platinum (PT)

• 25-Ohm Platinum (IPTS-68)

• 25.5-Ohm Platinum (alpha = 0.00392 at 0°C Lab Std)

• PT-100 (Compatible)

Input Configurations:

• Number of RTD Inputs: 4

• Wiring Configurations: 3-wire and 4-wire (both supported)

• Input Resistance Range: 0 to 3276.7 ohms

• Operating Frequency: 50 to 60 Hz (selectable)

Environmental Specifications:

• Operating Temperature: 0°C to 55°C (32°F to 131°F)

• Operating Humidity: 5% to 95% (non-condensing)

• IP Rating: IP20

Configuration Method:

• Configuration Tool: Handheld configuration device (sold separately)

• Configuration Interface: Through the BIU

• Configurable Parameters: Number of active RTD inputs, output data byte length, line frequency (50/60 Hz)

The IC670ALG621 interprets RTD readings according to pre-configured reference parameters. All customizations are made from the BIU using a handheld configuration device. This module measures temperature for many industrial processes. RTD sensors remain the most common method for industrial temperature measurement.

Installation Guide

Follow these steps to install the IC670ALG621 properly. Power down the Field Control system before installation. Insert the module into the appropriate I/O slot in the base. Ensure the module seats firmly into the backplane connector. Connect your RTD sensors to the input terminals. Use either 3-wire or 4-wire configurations as needed. Shield the RTD wiring to reduce electrical noise. Keep RTD wires away from high voltage cables. Connect the BIU to the Genius Bus network. Power up the system after all wiring is complete. Use a handheld configuration device to access the BIU. Set the number of active RTD inputs for your application. Select either 50 Hz or 60 Hz line frequency. Configure the output data byte length as required. Verify each RTD channel shows correct temperature readings. Follow manufacturer recommendations for environmental protection. The IP20 rating means protect this module from dust and direct water contact.

What’s in the Box

Please check the package contents upon delivery.

• IC670ALG621 RTD Input Module (1 unit)

• Terminal block connector (1 piece)

• Module labeling sheet (1 piece)

Common FAQs

1. How many RTD inputs does the IC670ALG621 support?
This module supports four independent RTD inputs. Each channel can connect to a separate RTD sensor for temperature measurement.

2. What RTD types work with this module?
The IC670ALG621 works with several RTD types. These include 10-Ohm Platinum, 25-Ohm Platinum, 25.5-Ohm Platinum, and PT-100 sensors.

3. Can I use both 3-wire and 4-wire RTD configurations?
Yes, this module supports both 3-wire and 4-wire wiring configurations. Choose the configuration that matches your RTD sensor type.

4. How do I configure this RTD input module?
You configure the IC670ALG621 through the BIU. Use a handheld configuration device (sold separately) to access and change parameters.

5. What is the IP rating of this module?
This module has an IP20 rating. Protect the unit from dust and direct water contact during installation. Follow all manufacturer recommendations for environmental protection.