Product Description
Hill AFT Auto Flexion Table Brake Switch Retifier
On the Hill AFT (Auto Flexion Table), the combination of the brake, switch, and rectifier forms the core electrical and mechanical ecosystem responsible for controlling the motor drive and stopping the automatic lumbar flexion cycle accurately.
Component Breakdown & Functions
- The Motor Brake
- Purpose: The automatic flexion motor utilizes a built-in holding brake to instantly halt momentum when the table reaches the end of its flexion stroke or when a safety switch/stop command is triggered.
- Operation: It is typically a spring-applied, electrically released DC brake. When unpowered, the spring engages the brake to lock the motor shaft firmly in place. When power is applied, the brake releases to allow smooth, variable-speed rotation (1 to 28 RPM).
- The Rectifier (Brake Rectifier)
- Purpose: Converts incoming Alternating Current (AC) line voltage into Direct Current (DC) required to energize and lift the motor's internal brake coil.
- Failure Symptoms: If an AFT table experiences issues where the flexion motor struggles, hums, or the brake fails to release (causing the motor to lock up or throw an overload fault), the brake rectifier is a primary troubleshooting suspect. Over time, voltage spikes or thermal fatigue can cause the internal diodes to short or open, preventing DC voltage from reaching the brake coil.
