Products Description
The Allen-Bradley SP-110996 Armature Pulse PC Board is a critical electronic component designed for use in industrial DC drive systems, particularly within Bulletin 1395 drive platforms manufactured by Allen‑Bradley, a brand of Rockwell Automation.
This circuit board is responsible for generating and transmitting accurate firing pulses to the armature section of the drive, ensuring that the power semiconductor devices operate in a synchronized and stable manner. By delivering precise pulse signals, the board helps maintain efficient motor speed control, stable current output, and reliable drive performance.
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Technical Details
This component is a spare part used in industrial automation, specifically for Bulletin 1387 and 1395 Series DC drives. It functions as an armature pulse transformer and snubber board.
Manufacturer: Allen-Bradley (Rockwell Automation).
Part Type: Printed Circuit Board (PCB) / Armature Pulse Board.
Current Rating: 3.6–345A.
Common Applications: Digital DC motor control and power conversion in the 1395 drive series.
Alternative Part Numbers: 110996, 1395-110996, or 105060 (often associated with the board revision).
Core Functions
The SP-110996 module performs several essential control tasks within the drive system.
Generation of SCR firing pulses
Coordination of armature power switching
Stabilization of drive control signals
Electrical isolation of control circuits
Supporting precise DC motor speed regulation
Product Features
Precision Pulse Synchronization: Ensures exact timing for SCR firing, minimizing torque ripple and heat generation in DC motors.
Integrated Snubber Protection: Features high-quality capacitors and resistors designed to suppress "dV/dt" transients, extending the lifespan of your power semiconductors.
Rugged Industrial Build: Components are selected for high-thermal stability to operate reliably in harsh cabinet environments.
Plug-and-Play Compatibility: Designed as a direct drop-in replacement, requiring no physical modifications to the 1395 drive chassis.
Application Fields & Scenarios
The SP-110996 is essential for industries relying on high-torque DC motor applications:
Metal & Metallurgy: Controls main drives for rolling mills, coilers, and slitters where precise speed regulation is non-negotiable.
Pulp & Paper: Used in paper machine sections (couch rolls, presses) requiring synchronized multi-drive coordination.
Printing & Packaging: Powers high-speed web presses and heavy-duty folders.
Material Handling: Critical for large-scale cranes, hoists, and conveyor systems in mining or port operations.
Plastic & Rubber: Supports extruders and mixers requiring constant torque at variable speeds.
About PLC Export
PLC Export is a trusted partner for many of the world's leading manufacturers and system integrators. By supplying both new and obsolete spare parts, we help extend the service life of existing systems, reduce production and material demands, and contribute to a more sustainable future.
PLC Export serves customers in more than 120 countries around the world, and we are well prepared for continued success in the future.
We are proud of the strong partnerships we have built and the values we continue to uphold. Thank you for choosing PLC Export as your global supplier of industrial automation spare parts.
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Quality Assurance
Multi-Point Inspection: Every unit undergoes a physical integrity check and a component-level diagnostic.
Load Simulation: Tested to ensure pulse output consistency across the rated current range.
Anti-Static Handling: All boards are stored and shipped in ESD-shielded environments to prevent latent circuit damage.
12-Month Warranty: We stand behind our hardware with a full 1-year replacement warranty, providing the same peace of mind as a new factory part.
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