Allen-Bradley 1746SC-INO4VI SLC 500 4-Channel Isolated Analog Output Module

Product Overview

The Allen-Bradley 1746SC-INO4VI acts as a high-performance analog control interface for the SLC 500 platform. This specialty module provides four independent, fully isolated analog output channels capable of driving both current and voltage signals. We supply this unit as 100% Brand New original factory stock, specifically designed for applications that require 16-bit high-resolution precision in complex loop control. By integrating channel-to-channel isolation, the 1746SC-INO4VI eliminates ground loop interference and protects the SLC backplane from field-side electrical transients.

Technical Specifications

Engineering Advantages

• Superior Noise Immunity: The 1746SC-INO4VI features 500V AC continuous channel-to-channel isolation. This hardware barrier prevents electrical noise or potential differences from one field device from affecting the signals of the other three channels, ensuring stable operation in heavy industrial environments.

• Ultra-Fast Response for Closed Loops: With a 1 ms step response time, this module executes signal changes almost instantaneously. This high-speed capability allows for more aggressive PID tuning and tighter control over fast-acting valves, dampers, or variable speed drives.

• High-Resolution Signal Control: The 16-bit architecture divides the output range into 65,536 distinct steps. This granularity enables the PLC to make micro-adjustments to field equipment, significantly improving process consistency and product quality.

• Streamlined Single-Slot Design: Despite providing four isolated outputs, the module occupies only a single slot in any 1746 SLC chassis. This density maximizes your I/O capacity without requiring the purchase of additional chassis or power supplies.

• Exceptional Thermal Stability: High-quality internal components maintain a non-linearity rating of 0.02% across the operating temperature range. This prevents "signal drift," reducing the need for frequent recalibration of field actuators.

FAQs

• Can I mix current and voltage outputs on the same module?

  Yes. Each of the four isolated channels functions independently. You can configure one channel for a 4-20 mA current loop while setting another for a ±10V voltage signal to meet diverse field requirements.

• Does this module require an external power supply?

  The 1746SC-INO4VI draws 250 mA at 24V DC from the SLC backplane. Ensure your SLC power supply (e.g., 1746-P1, P2, or P4) has sufficient current headroom to support this module along with your other I/O cards.

• How does this module differ from the standard 1746-NO4I?

  The "SC" (Specialty Component) designation indicates enhanced features. Unlike standard non-isolated modules, the 1746SC-INO4VI provides full channel-to-channel isolation and higher 16-bit resolution, whereas standard modules often share a common return and lower resolution.

• Is this a genuine factory-new unit?

  Yes. We guarantee this product is 100% Brand New. It ships in original manufacturer packaging with intact factory seals, ensuring it has never seen field service or environmental exposure.