IC693MDL241D GE 24VAC/VDC 16-Channel Input Module

IC693MDL241D: 16-Channel Discrete Input for Series 90-30

The IC693MDL241D is a 16-channel discrete input module originally manufactured by GE Fanuc and now supported under Emerson ownership. It belongs to the Series 90-30 platform, a control family widely deployed in discrete manufacturing and process lines. Because this module is discontinued, replacement planning is essential for facilities still running Series 90-30 racks. Each channel accepts 24 VAC or 24 VDC field signals, and the module occupies a single slot, which preserves rack space for other I/O.

From a cost perspective, the IC693MDL241D reduces total cost of ownership by consolidating sixteen inputs into one group with a single common. That design minimizes external wiring, terminal blocks, and installation labor compared with discrete relay interfaces. The 1500 V RMS field-to-logic isolation protects the backplane and CPU from transients on the field side, lowering the risk of expensive controller damage and unplanned downtime.

Technical Specifications of the IC693MDL241D

• Channels: 16, one group with single common
• Rated Voltage: 24 VAC or 24 VDC
• Input Voltage Range: 0 to 30 VAC or 0 to 30 VDC, 50/60 Hz
• Input Current: 7 mA typical at rated voltage
• Logic Type: Positive / negative logic
• Isolation: 1500 V RMS field-to-logic
• Operating Temperature: 0 to +60°C ambient
• Slot Width: Single slot

The 7 mA input current at rated voltage keeps total field current low, which reduces load on the 24 VAC/VDC supply and limits heat inside the enclosure. Lower current draw translates directly into smaller power supplies and less energy consumption over the module's service life. Meanwhile, the 1500 V RMS isolation barrier is a verified engineering-grade specification that guards the logic side against ground loops and surges.

Installation and Commissioning Notes

Install the IC693MDL241D in a single Series 90-30 slot and confirm the backplane seating before applying field power. Because the module supports both positive and negative logic, verify the intended input polarity against the field device wiring before energizing. The 0 to 30 VAC or 0 to 30 VDC range with 50/60 Hz compatibility allows the same module to serve AC or DC sensor circuits, which reduces spare-part inventory costs. However, always de-energize the rack before insertion or removal to prevent damage to the backplane.

For facilities planning a migration, the discontinued status means new stock is limited. Contact AutoDCSTech with your exact requirements for precise matching and lifecycle verification before ordering.

Reliability and Maintenance Considerations

The IC693MDL241D has no moving parts, so wear is minimal. Nevertheless, periodic inspection of terminal tightness and enclosure temperature helps prevent intermittent faults. Operating within the 0 to +60°C ambient range protects the internal isolation barrier and extends service life. In high-ambient cabinets, forced ventilation reduces thermal stress and avoids premature module failure, which protects the capital already invested in the Series 90-30 platform.

This part has been discontinued by the manufacturer. Migrate to PACSystems RX3i (IC695 series); we stock remaining new and refurbished units.