Product Overview

The GE Fanuc IC693MDL646 is a discrete input module for Series 90-30 PLCs. This module has 16 input channels in one group. It accepts 24 VDC signals from field devices. The module supports both positive and negative logic wiring. A single common terminal serves all 16 inputs. Typical response time is 1 ms for both On and Off transitions. This module is discontinued but remains available from stock.

For inquiries, contact us at +86 158 8020 0923 (WhatsApp).

Part Number Breakdown (Tree Structure)

• IC693 → Series Family
  • Series 90-30 PLC system
  • GE Fanuc / Emerson Automation
• MDL → Product Type
  • Discrete I/O Module
• 646 → Specific Model
  • 16 input channels
  • 24 VDC rated voltage
  • Positive/negative logic support

Key Specifications

• Brand: GE Fanuc / Emerson Automation
• Part Number: GE Fanuc IC693MDL646
• Series: Series 90-30
• Product Type: Discrete input module
• Number of Channels: 16 channels (one group, single common)
• Rated Voltage: 24 Volts DC
• Input Voltage Range: 0 to +30 Volts DC
• Input Current: 7 mA per channel at rated voltage
• Wiring Configuration: Positive / Negative logic
• Product Lifecycle: Discontinued / Obsolete

Input Voltage Characteristics

• Nominal Input Voltage: 24 VDC
• On-state Voltage: 11.5 to 30 Volts DC
• Off-state Voltage: 0 to +5 Volts DC

Input Current Characteristics

• On-state Current: 3.2 mA minimum
• Off-state Current: 1.1 mA maximum
• Typical Input Current: 7 mA at rated voltage

Response Time

• On Response Time: 1 ms typical
• Off Response Time: 1 ms maximum
• Fast response suits high-speed applications.

Isolation and Protection

• Isolation Voltage: 1500 Volts between field side and logic side
• This protects the backplane from field wiring faults.

Power Consumption

• Backplane Current Draw (5 VDC): 80 mA
• Backplane Current Draw (24 VDC): 125 mA
• User power supply provides the 24 VDC field power.

Connection Details

• Number of Terminals: 20 connection terminals
• Terminal Cover: Swing door with wiring insert
• Color Code: Low-voltage module identification

LED Indicators

• Individual Channel LEDs: One per input channel
• Module OK LED: Shows module status
• LEDs show On/Off status of each input.
• Use LEDs for quick field troubleshooting.

Compatible Field Devices

• Push button devices
• Selector switches
• Proximity switches
• Auxiliary contacts
• Limit switches
• Relay contacts

Installation Guide

• Turn off all power before installation.
• Locate an empty I/O slot in the Series 90-30 rack.
• Insert the GE Fanuc IC693MDL646 into the slot.
• Press firmly until the module locks in place.
• Choose positive or negative logic wiring configuration.
• Connect field devices to the 16 input terminals.
• Connect the common terminal to power supply common.
• Apply 24 VDC field power to the devices.
• Apply backplane power and check Module OK LED.
• Verify each channel LED responds to field device changes.

Wiring Notes

• Positive logic: Input turns On when voltage is applied.
• Negative logic: Input turns On when voltage is removed.
• All 16 inputs share one common terminal.
• Use the swing door wiring insert for reference.
• Follow the color code for correct voltage identification.

Maintenance Tips

• Check LED indicators regularly for proper input status.
• Inspect terminal connections for looseness.
• Keep the swing door closed to protect wiring labels.
• Test each input channel annually with a known signal.
• Replace module if multiple channels fail simultaneously.

Application Scenarios

• Factory automation with 24 VDC discrete sensors
• Conveyor system limit switch monitoring
• Packaging machine push button and selector inputs
• Material handling equipment control
• Industrial machine status monitoring
• PLC system upgrades and repairs

Diagnostic Capabilities

• Monitor each input via individual channel LEDs.
• Check Module OK LED for backplane power status.
• Measure input voltage at terminals for On/Off verification.
• Use PLC logic to monitor input status in software.
• Test response time with oscilloscope if needed.

Compatibility Notes

• Works with all Series 90-30 PLC systems.
• Compatible with GE Fanuc and Emerson CPUs.
• Requires 24 VDC field power supply.
• Positive or negative logic devices both work.
• Discontinued product - verify system compatibility before ordering.

Package Contents

• One GE Fanuc IC693MDL646 discrete input module
• One swing door terminal cover (attached)
• One wiring insert label

Warranty and Shipping

• 12 months factory warranty from shipment date.
• Warranty covers manufacturing defects only.
• Overvoltage or wrong wiring voids the warranty.
• Shipping options: FedEx, UPS, DHL.
• Tracking number provided after shipment.

Frequently Asked Questions (FAQ)

Q1: How many input channels does the IC693MDL646 have?

The GE Fanuc IC693MDL646 has 16 discrete input channels. All 16 channels share one common terminal. Each channel has its own status LED indicator.

Q2: What voltage does this input module accept?

Nominal voltage is 24 VDC. The acceptable range is 0 to +30 VDC. On-state requires 11.5 to 30 VDC. Off-state is 0 to +5 VDC.

Q3: What is the response time of the IC693MDL646?

Typical On response time is 1 millisecond. Maximum Off response time is 1 millisecond. This fast response suits high-speed industrial applications.

Q4: What is the difference between positive and negative logic?

Positive logic turns the input On when voltage is applied. Negative logic turns the input On when voltage is removed. This module supports both configurations for flexibility.

Q5: Is the IC693MDL646 still in production?

This module is discontinued and obsolete. However, we have new and original stock available. Order now while supplies last for your Series 90-30 system.

Buying Guide

When you buy a GE Fanuc IC693MDL646 discrete input module, follow these tips. First, count your input needs. This module gives 16 inputs per module. Second, verify your input voltage is 24 VDC. Third, check your logic type requirement. This module supports positive or negative logic. Fourth, calculate your power budget. The module draws 80 mA at 5V and 125 mA at 24V. Fifth, confirm your field device compatibility. Push buttons, switches, and proximity sensors work well. Sixth, consider response time needs. This module responds in 1 ms. Seventh, verify you have an empty I/O slot in your rack. Eighth, check that your PLC system supports this discontinued module. Ninth, review warranty terms. We offer 12 months coverage. Tenth, choose your shipping method. We use FedEx, UPS, and DHL. Finally, test one input channel before wiring all 16 devices.

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