Guide

How to release SmartBrake fail-safe

  • Fail-safe is a safety function in SmartBrake. When fail-safe is active, the brake remains locked until the system fault is resolved.
  • Fail-safe occurs when the signal between the administrator controller and the brake unit is lost, or when a controller or the brake unit itself runs out of power.

In practice, this often happens:

  • when SmartBrake starts
  • when the companion controller is outside the operating range
  • when the battery level is too low

Important

If fail-safe cannot be resolved on site, stop using the system and contact SmartGroup or a qualified professional. Follow the instructions for use for your setup.

Normal fail-safe at startup

When SmartBrake is switched on, fail-safe may keep the wheels locked until you wake up the controller.

  1. First check that SmartBrake is switched on. It is important to confirm that SmartBrake is actually keeping the brake locked, rather than another brake on the bicycle.
  2. Wait for startup to finish. SmartBrake takes a few seconds to start up.
  3. Wake up the controller once. This activates the controller and signals SmartBrake to release fail-safe.
  4. Check that the wheels rotate freely. Once fail-safe is released, the wheels should roll normally.

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If fail-safe is caused by a low battery

  • Fully charge the SmartBrake unit as soon as possible.
  • If the controller battery is empty, it must be replaced before you cycle again.

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Fail-safe due to an empty controller battery

Fail-safe, empty controller battery

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Fail-safe due to an empty unit battery

Fail-safe, empty brake unit battery

If the wheel is still locked

If the wheel is still locked after this, something other than normal startup may be the cause. See the guide to troubleshooting SmartBrake.