Mitsubishi Input Module (DC Input) RX70C4

Product Overview

The Mitsubishi RX70C4 is a high-performance DC input module designed for industrial automation systems, offering reliable signal acquisition for digital control applications.

Technical Specifications

●Input Points: 16 discrete DC inputs

●Rated Input Voltage: Dual-rated for DC 5V or DC 12V operation

●Typical Input Current:

  ●1.7 mA at DC 5V

  ●4.8 mA at DC 12V

●Response Time: Adjustable range from 0.2 ms to 70 ms (hardware configurable for noise filtering or high-speed response)

●Common Connection Method: 16 points per common terminal (shared positive/negative common wiring supported)

●Interrupt Function: Built-in interrupt capability enables event-driven processing, reducing CPU load in time-critical applications

●External Wiring Connection: 18-point screw terminal block for secure and easy field wiring

●Direct Use: Not suitable for direct connection to external sensors without additional conditioning (e.g., requires series resistor or isolation if voltage/current limits are exceeded)

Key Features & Benefits

●Flexible Voltage Support: Compatible with both 5V and 12V DC signals, allowing integration with various sensor families.

●Programmable Response Time: Users can set response speed between 0.2ms (high-speed) and 70ms (noise suppression), optimizing performance for different environments.

●Interrupt Function: Enables immediate CPU notification of critical input changes, ideal for high-speed counting, position sensing, or alarm monitoring.

●Simplified Wiring: Shared common terminals reduce cabling complexity, while the 18-point screw terminal block provides robust mechanical connection.

●Compact & Durable: Designed for industrial control panels with electrical isolation and surge protection for reliable operation in harsh environments.

Typical Applications

●PLC input interfacing for limit switches, proximity sensors, photoelectric sensors, and pushbuttons

●High-speed signal detection in packaging, material handling, and assembly lines

●Interrupt-driven processes in precision automation and safety systems

Compatibility

●Fully compatible with Mitsubishi MELSEC series PLCs (e.g., Q, L, FX5UJ, iQ-R series)

●Requires external current-limiting resistors if input voltage exceeds 5V/12V nominal range

Important Notes

●The module cannot be directly connected to mains voltage or unregulated power supplies.

●For reliable operation, a common-mode voltage of ±0.5V maximum is recommended between the module and input signals.

●Always verify input signal characteristics against module specifications before installation.