Johnson Controls DRN3-10-1000 Control

The Johnson Controls DRN3-10-1000 is an industrial-grade signal interface module designed to convert analog, pulse, or floating-point signals into a precise resistance output. Transitioning from the previous DRN3.10-1000 model, this unit features a 0-1000 Ohm resistance network that simulates a potentiometer for seamless electric actuator control and resistive sensor simulation. Field technicians rely on the DRN3 series for its versatility in building automation systems (BAS), where it acts as a bridge between digital controllers and legacy or specialized equipment requiring resistive inputs.

Engineered for technical reliability, the module supports multiple input types, including 0-10 VDC voltage, 4-20 mA current, and PWM pulse width modulation. It utilizes 256-step resolution to ensure smooth tracking without "wrap around" errors, providing accurate resistive signal conversion across various HVACR applications. The board is mounted on a 3.25-inch snaptrack for easy enclosure installation and handles 24 VAC/VDC supply power, making it a standard choice for potentiometer simulation in complex control loops.

• Direct Replacement: Fully compatible updated version of the legacy DRN3.10-1000 for easy field retrofits.
• Multi-Signal Input: Accepts analog (VDC/mA), pulse, or floating-point commands for maximum flexibility.
• Accurate Resolution: 256-step conversion ensures precise control of slave devices and resistive sensor simulation.
• Simplified Wiring: Features 45-degree captive screw terminal blocks for secure, fast connections in tight panels.
• Rugged Design: Built-in LED indicators for power and pulse status allow for immediate visual troubleshooting.

Is the DRN3-10-1000 compatible with older Johnson Controls systems?
Yes, this module is the direct successor to the DRN3.10-1000 and is designed to integrate into existing Johnson Controls BAS architectures, particularly where 0-1000 Ohm simulation is required.

What input signals does this interface support?
The module is highly versatile, supporting 0 to 10 VDC, 4 to 20 mA, and various pulse width modulation (PWM) or tri-state floating-point signals via jumper selection.

How do I verify the resistance output during commissioning?
With the power off, you can verify the base resistance across the network. Under power, measure the resistance across the R (wiper) and B (high) terminals while varying the input signal to ensure the 0-1000 Ohm range is tracking correctly.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.