Allen-Bradley 1756-PLS Module | Programmable Limit Switch

Allen-Bradley 1756-PLS Programmable Limit Switch | High-Density I/O Module

Detailed Technical Specifications

• Brand: Allen-Bradley (Rockwell Automation)
• Full Model Number: 1756-PLS
• Series: ControlLogix
• Module Type: Programmable Limit Switch (Motion Control)
• Digital Inputs: 16 points, 10-31.2V DC (4 groups of 4)
• Digital Outputs: 16 points, 10-31.2V DC (4 groups of 4)
• Max Output Current: 1.0 Amp per point
• Backplane Power: 1000 mA @ 5V DC, 125 mA @ 24V DC
• Power Dissipation: 25.7W @ 30°C, 21.3W @ 60°C
• Heat Dissipation: 9.56 BTU/hr maximum
• Chassis Slots: Requires 3 contiguous slots
• Terminal Blocks: Uses 1756-TBSH or 1756-TBNH RTBs
• Operating Temperature: 0 to 60°C (32 to 140°F)
• Storage Temperature: -45 to 85°C (-49 to 185°F)
• Relative Humidity: 5-95% (non-condensing)
• Isolation Voltage: 250V AC continuous
• Dimensions: 5.51″ H x 4.41″ W x 5.71″ D

Frequently Asked Questions

• What is a Programmable Limit Switch?
• It is a electronic module that replaces mechanical limit switches.
• What resolver does the 1756-PLS work with?
• It is designed to work with the Allen-Bradley 855R resolver.
• Can I use standard 24V DC sensors?
• Yes, the inputs accept 10-31.2V DC signals.
• How many setpoints can I program?
• You can program multiple high and low limit setpoints.
• Why does it need 3 chassis slots?
• It requires the extra space for its advanced processing capabilities.