Brake motors
Brake motors are used in a wide variety of applications. Different types of brakes can be used depending on the application and the requirements for the brake in terms of reaction time, holding force, holding time and requirements for the service life of the brake.
Holding brakes are suitable for holding the motor at a standstill in one position without expecting an additional force or load (e.g. a saw blade should not continue to rotate after the saw has been switched off, so as not to pose a danger to bystanders). The brake coils are usually supplied with a DC voltage via a rectifier. The supply voltage can be 230V; 400V or 24V. The holding torque of the brake varies between 2.5 Nm and 50 Nm depending on the size.
Safety brakes are designed to hold a motor and load in position (e.g. a crane should be switched off over the weekend and hold the position safely with its suspended load). Brake coils with DC or AC voltage connection can be used here. These brakes can be set within a defined range with regard to the requirements for the braking and holding torque and can therefore be adapted to the requirements of the application. Depending on the size, the braking torque is between 5Nm and 1000Nm.
Dynamic safety brakes are designed to bring a moving load to a standstill safely and quickly. In addition to the basic requirements for a brake (safe and quick braking of the load and holding the position), additional requirements for the repeatability of the braking cycle as well as the braking torque and the noise level over the service life can be important criteria. The brake coils of these brakes are usually designed for AC operation.
Overview of the brake motors
- Size 56 to size 280
- AC and DC motors 2,4,6 and 8 poles
- Pole-changing brake motors
- Braking torque up to 1000Nm
- Response time ≥ 11ms