Allen-Bradley 1336-L4 Digital Input Option Board

Description

The Allen-Bradley 1336-L4 is a digital input option board designed for use with the 1336 PLUS II series of adjustable frequency AC drives. This control interface board serves as a logic PCB assembly, enabling enhanced digital input capabilities for the drive system. Please note that this component was officially discontinued by the manufacturer on December 31, 2014.

Features

• Compatible with 1336 PLUS II drive series
• Logic PCB assembly for digital input expansion
• Operating voltage: 5 VDC
• Compact design for internal drive integration

Applications

This option board is primarily used in industrial automation environments where the 1336 PLUS II AC drive requires additional digital input points for process control, status monitoring, or external command integration.

Technical Specifications

Installation Guidelines

• Ensure the drive is completely powered down and the DC bus capacitors have fully discharged before attempting to install or remove the 1336-L4 board.
• Observe standard ESD (Electrostatic Discharge) precautions when handling the PCB to prevent damage to sensitive logic components.
• Verify that the drive firmware supports the specific option board configuration before commissioning.
• Ensure all internal connections are seated firmly to prevent intermittent signal errors during drive operation.
• Avoid routing signal cables near high-voltage power lines to minimize EMI interference.

FAQ

Is the 1336-L4 still available from the manufacturer?

No, the 1336-L4 was discontinued by Allen-Bradley on December 31, 2014. It is currently available only through secondary market channels or as refurbished spare parts.

What is the primary function of this board?

The 1336-L4 acts as a digital input interface, allowing the 1336 PLUS II drive to process additional digital signals for control and monitoring purposes.