With Industry 4.0, the Internet of Things and Services is finding its way into companies. This is why Mayr Antriebstechnik offers reliable safety brakes that are equipped to meet the challenges of the fourth industrial revolution. Intelligent monitoring modules such as Roba-brake-checker and Roba-torqcontrol can monitor safety brakes quickly and easily and enable the smooth and gentle deceleration of machines and devices.

Condition monitoring and control in one
The Roba-brake-checker module works without sensors. Instead, it detects the movement of the armature plate by analyzing current and voltage and knows what state the brake is in. In addition to the switching status, it can also draw conclusions about temperature, wear and traction or traction force reserve, i.e. whether the magnet still has sufficient force to attract the armature disk. This means that significantly more processes can be mapped when monitoring the safety brakes than before. When the tractive force reserve is reached, the Roba-brake-checker sends a warning signal so early that a certain operating time of the brake is still possible. During this time, the operator can carry out targeted maintenance in line with their work process. The module is currently available in a version for AC voltage. In the future, a further version will also supply the brake and thus replace the rectifier. Switching status monitoring and brake control are thus combined in one device.

The Roba-SBCplus brake control module provides safe switching time monitoring and can be used up to PLe and SIL 3.

For applications that require braking torque control in addition to condition monitoring, Mayr offers the Roba-torqcontrol braking torque control module. It shares the characteristics of the brake-checker and can also change the braking torque during operation by controlling the current and voltage. Devices and machines can thus be decelerated smoothly and evenly. The module enables control loops to be set up and movements to be braked intelligently.

Electronics provide safety
Another module that can be used to continuously monitor the switching status of the brakes is the Roba-SBCplus safe brake control. This provides the customer with safety brakes and safe brake control in a complete package. The module was developed together with Pilz, particularly for applications that have to meet the requirements for personal protection in accordance with functional safety standards. SBCplus must safely interrupt the current in the solenoid coil when the brake is switched off. To achieve this, the module works with wear-free electronic semiconductors and thus achieves practically unlimited switching frequency and switching reliability.

The brake control module provides safe switching time monitoring. There is also an integrated plausibility check by evaluating the release monitoring signals. The evaluations of the switching states and the return signal thus enable reliable fault diagnosis. Even creeping faults with an influence on the switching times, such as increasing wear, can be detected in good time. The safe brake control is type-tested by TÜV Süd and can be used up to the highest performance level PLe and SIL 3.

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