Product Overview

The GE Fanuc IC670MDL740 is a discrete output module for the Field Control series. This unit provides sixteen (16) positive logic output channels in a single group. It operates at a nominal voltage of 12/24 Volts DC. The output voltage range spans from 9.2 to 29.5 Volts DC. Each channel delivers 0.5 Ampere of output current. The total module current is 4 Amperes across all points. You can use the IC670MDL740 to drive pilot lamps, relay coils, solenoid valves, and other low‑current loads. This module mounts on a Bus Interface Unit (BIU) for distributed I/O expansion.

Technical Specifications

Output Characteristics

• Number of Outputs: 16 points (single group)

• Output Logic: Positive logic (sourcing type)

• Nominal Output Signal: 12/24 Volts DC

• Output Voltage Range: 9.2 to 29.5 Volts DC

• User Input Voltage: 10‑30 Volts DC (24V DC nominal)

Current Ratings

• Output Current per Point: 0.5 Amperes maximum

• Total Module Current: 4 Amperes maximum

• Minimum Load Current: 1 mA per point

• Inrush Current: 2 Amperes maximum for 100 ms

• Output Leakage Current: 0.5 mA at 30 VDC

• Output Voltage Drop: 0.5 Volts maximum

Response & Protection

• Output Response Time: 200 µs at 0.5A resistive load

• Built‑In Protection: 5A fuse for group protection

• Polarity Error Protection: Fuse blows on reverse connection

• Recommended Fuse: 5A, 250V AC, slow‑blow type

Isolation & Power

• User Input to Logic Isolation: 1500V AC for 1 minute

• User Input to Frame Ground Isolation: 250V AC continuous

• Group to Group Isolation: None (single group)

• Current Draw from BIU: 111 mA maximum

Indicators & Diagnostics

• Output Status LEDs: One per channel (on/off indication)

• Fuse Blown LED: Indicates group protection fault

• User Supply LED: Alerts when voltage drops below 9.8V DC

• Diagnostic Messaging: Sends fuse fault status to BIU

Physical Data

• Terminals: 25 integrated terminals

• Wire Size (Single Wire): 14‑22 AWG

• Wire Size (Two Wires): 18 AWG (with external jumper, reduces to 14‑16 AWG)

• Shipping Weight: 2.0 lbs (0.91 kg)

• UPC: 662443567914 (representative)

Installation Guidelines

Follow these steps to install the GE Fanuc IC670MDL740 correctly.

• Disconnect all system power before inserting or removing the module. This prevents electrical shock and component damage.

• Mount the terminal base (IC670CHS series) on DIN rail or panel. Secure the base before module insertion.

• Insert the IC670MDL740 into the terminal base. Press evenly until the locking tabs engage fully.

• Connect the external power supply to the user input terminals. Observe correct polarity to avoid blowing the fuse.

• Wire each output point to the load. Use sourcing wiring because this is a positive logic module.

• Install a 5A slow‑blow fuse in the designated holder. This protects the group from overload and short circuits.

• Verify the load current does not exceed 0.5A per point. Total module current must stay under 4A.

• Check all LED indicators after power up. The fuse LED should remain off. The user supply LED must be on.

Note: The IC670MDL740 has a single group with no isolation between points. All outputs share a common return.

Package List

When you receive your GE Fanuc IC670MDL740, the box includes the following items.

• One IC670MDL740 discrete output module (16 points)

• One user manual (installation and wiring guide)

• One label sheet for point identification

• One antistatic protective bag

Notice: The package does not include the terminal base (IC670CHS), the 5A fuse, or field wiring. Please order the fuse separately from a local supplier.

Frequently Asked Questions (FAQ)

1. What types of loads can the IC670MDL740 drive?

The GE Fanuc IC670MDL740 drives resistive and inductive loads. Typical applications include pilot lamps, relay coils, solenoid valves, and small contactors. Each point handles up to 0.5A at 10‑30V DC.

2. What happens if I reverse the external power supply polarity?

Reversing the power supply polarity on the IC670MDL740 will blow the built‑in 5A group fuse. The fuse protects the module from damage. Replace the fuse with a 5A, 250V AC slow‑blow type after correcting the wiring.

3. Does this module have individual fuses per output point?

No, the IC670MDL740 uses one common 5A fuse for the entire group of 16 outputs. Individual output points are not separately fused. For point‑level protection, add external fuses in series with each load.

4. What is the output response time of the IC670MDL740?

The GE Fanuc IC670MDL740 has a typical output response time of 200 microseconds with a 0.5A resistive load. This fast response suits high‑speed applications like solenoid control and relay switching.

5. Can I use this module with 12V DC loads?

Yes, the IC670MDL740 works with 12V DC loads. The output voltage range is 9.2 to 29.5V DC. At 12V nominal, the module delivers the same 0.5A per point output current.

Key Benefits for Your Automation System

The GE Fanuc IC670MDL740 offers 16 high‑density output points in a single group. The sourcing (positive logic) design matches standard industrial sensors and actuators. Built‑in group fusing protects your expensive loads from short circuits and overloads. LED indicators for each point and fuse status help you troubleshoot field wiring instantly. The diagnostic messaging feature sends fuse fault alerts to the bus interface unit for remote monitoring. With 1500V AC isolation, your backplane stays safe from field transients. The 200 µs response time handles fast switching applications easily. This module is ideal for legacy GE Fanuc systems and new Field Control installations. Common applications include valve manifolds, motor contactor banks, indicator panels, and small relay controls.