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Kendrion 77 500 B Series - User Manual

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MODULE LINE
Operating Instructions 77 500..B..
Spring-applied single-disc brake module
Types: 77 50013B16 77 50019B15
77 50024B15 77 50029B15

Questions and Answers

  • A
    Alyssa JonesAug 8, 2025
    Why Kendrion Control Unit brake torque too low?
    • L
      Luis DiazAug 8, 2025
      If the Kendrion Control Unit brake torque is too low, consider these potential causes: 1. The air gap may be too large. Check the air gap and replace the friction disc if necessary. 2. The friction surfaces could be oily or greasy. Replace the friction disc. 3. The compression spring might be broken. Install a new brake module.
  • R
    Robert SmithAug 13, 2025
    Why Kendrion 77 500 B has delayed brake release?
    • R
      Rodney HoltAug 13, 2025
      If the Kendrion Control Unit experiences delayed brake release, it could be due to: * An air gap that is too large. Inspect the air gap and replace the friction disc if necessary. * A voltage applied to the field coil that is too low. Check the field coil supply voltage and correct any identified faults.
  • S
    Shawn ReeseAug 18, 2025
    What to do if Kendrion 77 500 B brake engagement failure?
    • H
      htuckerAug 18, 2025
      If the Kendrion Control Unit brake engagement fails, it might be because: * The voltage applied to the field coil in an unpowered condition is too high (residual voltage). Check for residual voltage applied to the field coil and correct any faults found. * The armature plate is mechanically blocked. Eliminate any mechanical obstructions, and if necessary, install a new brake.
  • M
    Mr. Zachary Mann MDAug 23, 2025
    Why Kendrion 77 500 B Control Unit has delayed brake engagement?
    • M
      Megan MooreAug 23, 2025
      If the Kendrion Control Unit experiences delayed brake engagement, it is possible that the voltage applied to the field coil is too high. Check the field coil supply voltage and correct any faults that are found.
  • H
    Harold MackAug 28, 2025
    How to fix Kendrion 77 500 B Control Unit microswitch failure?
    • D
      Darrell DavisAug 28, 2025
      If the Kendrion Control Unit microswitch fails, it could be due to: * A damaged microswitch. Replace it with a new one. * An adjustment error of the microswitch switching point. Readjust the microswitch switching point.
  • M
    Michael HansonNov 2, 2025
    What to do if Kendrion 77 500 B Control Unit brake release failure?
    • D
      Dennis WrightNov 2, 2025
      If the Kendrion Control Unit brake release fails, several factors could be responsible: * The air gap might be too large, in which case you should check it and replace the friction disc if needed. * There might be no voltage applied to the brake, so you should check the electrical connection and fix any issues. * The voltage applied to the field coil may be too low, so check the field coil supply voltage and correct any faults. * The armature plate might be mechanically blocked, requiring you to remove any obstructions. If needed, install a new brake. * The rectifier could be damaged; inspect and replace it if necessary. * A damaged field coil could be the issue; check its resistance and replace the brake if required. * Lastly, the friction disc might be thermally overloaded...

Summary

Safety

Product Description

Operating Principle

Explains how the spring-applied brake works electromagnetically.

Installation

Mechanical Installation

Steps for physically installing the brake module.

Brake Shaft Installation

Detailed procedure for installing the brake shaft onto the motor shaft.

Mounting Brake Module to Motor

Steps for mounting the brake module onto the motor flange.

Electrical Connection and Operation

DC Power Supply

Connecting the brake module to a DC power source.

AC Power Supply

Connecting the brake module via an AC power source and rectifier.

Set-up and Start-up

Transmissible Torque Adjustments

Maintenance

Checks and Service

Regular checks, air gap measurement, and friction disc wear.

Brake Shaft Removal

Motor Design Requirements

Driven Components and Balancing

Troubleshooting

Technical Specifications

Kendrion 77 500 B Series Specifications

General IconGeneral
BrandKendrion
Model77 500 B Series
CategoryControl Unit
LanguageEnglish

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