Overview
The Allen-Bradley 1746-OV16 is a 16-channel discrete DC output module designed for SLC 500 programmable logic controllers. This current sinking module delivers nominal 24V DC operation across a 10–50V DC output voltage range, making it ideal for controlling DC loads such as relay coils, solenoids, indicator lights, and audible alarms in industrial automation environments.
Key Features
- 16 sinking output channels in a single group configuration
- Output voltage range: 10–50V DC with nominal 24V DC rating
- Fast signal switching: 0.1 ms ON-to-OFF delay, 1.0 ms OFF-to-ON delay
- Continuous output current rating: 0.50 A per point at 30 °C (86 °F); 0.25 A at 60 °C (140 °F)
- Maximum module current: 8 A at 30 °C
- Removable terminal block for simplified field wiring and maintenance
- Diagnostic LEDs for output status monitoring
- Optical isolation for noise immunity
Technical Specifications
- Backplane current consumption: 0.270 A at 5V DC
- OFF-state leakage current: 1 mA per channel
- Minimum load current: 1 mA
- Operating temperature range: 32–140 °F (0–60 °C)
- Humidity: 0–95% non-condensing
- Mounting: Single-slot SLC 500 chassis (not for leftmost slot)
- Module design: Series C
- Manufactured: Malaysia
Typical Applications
- Machine tool and motion control systems
- Material handling equipment and conveyor systems
- HVAC control and building automation
- Assembly line and manufacturing automation
- Process control and monitoring systems
- Discrete DC load switching and sequencing
Compatibility & Replacements
Compatible With
- SLC 500 family of fixed and modular processors
- All SLC 500 chassis models
- Ladder logic programming via RSLogix 500
- Any SLC 500 slot except the leftmost processor slot
Replaces / Drop-In Replacement For
- Earlier Series A and Series B versions of the 1746-OV16
- Direct replacement for legacy 1746-OV16 installations
Works With
- RSLogix 500 programming software
- SLC 500 native I/O architecture
- DF1 and Ethernet communication protocols (via external gateway)
- Standard 24V DC industrial control circuits
