Principle

The stopping time is a key factor for machines with dangerous motions when selecting and positioning the protective device. The stopping time essentially determines the safety distance. This guarantees that the operator cannot reach the nearest danger point before the standstill. Depending on the type of the machine, the stopping-time parameters are subject to change in the course of time. Therefore it is sensible to make periodical checks. The measuring configuration Safety Man Delta T is used to determine the stopping times of machines of the most various types.

The system

The sensor

The actuator

... triggers a machine stop at a pre-adjusted position (mostly in the area of highest velocity) simulating that way the response of the safeguarding device. The relay unit or the Auto-Hand can be used as actuators. The relay output is normally connected between the output of the safeguarding device and the machine control, whereas the Auto-Hand triggers directly the safeguarding device. Due to this fact, no electrical connection to the machine control is any longer necessary, furthermore the overall stopping time is evaluated.

The measuring device

... determines - via the sensor’s information - the stopping time and the stopping distance of the machine between the stopping signal and the machine’s standstill. The safety distance between the safeguarding device and the danger point is calculated. All data of the safeguarding device are taken into account and the valid European standards are considered. Multiple automatic measurements with statistical evaluation heighten the precision. All measured values are documented with the aid of the Printer or can be transferred to a computer system.

>>> Fields of application

>>> Pics of the individual work steps

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