GE IC693MDL645
GE IC693MDL645 - Image 2

GE IC693MDL645

Product Overview: The GE IC693MDL645 is a 16-point discrete input module designed for the Series 90-30 PLC. It accepts 24 VDC positive logic signals from field devices such as proximity sensors, pushbuttons, and limit switches, converting them into digital data for the CPU.

Request Quote
Category: SKU: GE IC693MDL645

Description

GE IC693MDL645 Technical Specifications:

  • Input Type: 24 VDC Positive Logic (Sourcing).
  • Number of Points: 16 points.
  • Input Voltage Range: 15 to 30 .
  • Input Current: 5 mA nominal at 24 VDC.
  • ON State Threshold: Minimum 12 .
  • OFF State Threshold: Maximum 5 VDC.
  • Response Time: 1 ms maximum.

Functional Features:

  • Positive Logic: Sourcing input configuration, requiring field devices to sink current to common.
  • Status Indication: Individual green LEDs for each input channel.
  • Noise Immunity: High-voltage optical isolation protects the backplane from field transients.
  • Fast Response: 1 ms response time suitable for high-speed counting and detection.

Application Scenarios:

  • Interfacing with NPN-type proximity sensors and photoelectric switches.
  • Pushbutton and selector switch status monitoring.
  • High-speed limit switch detection in conveyor systems.

Material Composition & Structural Characteristics:

  • Isolation: Optocoupler isolation between field inputs and the PLC backplane.
  • Terminals: Removable terminal block for fast field wiring.
  • Indicators: Front-panel diagnostic LEDs.

Working Principle: When a field device connects the 24 supply to an input terminal, current flows through the internal optocoupler. This activates the LED indicator and signals the internal logic circuit, which updates the corresponding input bit in the PLC’s input image table.

Installation Requirements:

  • Wiring: Connect the positive side of the 24 VDC power supply to the field devices, and the negative side of the field devices to the module’s input terminals.
  • Power Supply: Ensure the 24 power supply has sufficient capacity for all connected inputs.
  • Cable Type: Use shielded twisted-pair cables for long-distance runs to prevent noise.

Usage Precautions:

  • Logic Matching: Verify that field devices are positive logic (NPN sinking); connecting PNP sourcing devices will not work.
  • Voltage Limits: Do not exceed 30 VDC to prevent permanent damage to the input circuitry.
  • Grounding: Ground the shield of the input cable at the PLC cabinet end only.

Related products