Safety at schools

Also at schools the wireless emergency button ensures improved safety. The practical teacher cannot spend too much time on a pupil operating a machine, he gives advice, answers questions and generally does his rounds during the lesson. If an emergency occurs, the pupil could panic and not always know what to do. With an extra wireless emergency stop you anticipate and eliminate these risks.

Out of range protection

To prevent a false sense of security it is imperative that the system verifies that communication between the wireless emergency stop and the receiver is possible. Only in that case is it possible that another emergency stop signal can be given.

Redundant circuits

Build up the hardware determines Performance Level. At Performance Level c a single and a double fault can be recognized by the system so that the safety function is not compromised.

Technology

To achieve this, use is made of a redundant set up system, 2 processors are checking each other continuously to verify that there are no defects or errors.

Redundant relays with forced contacts

By applying these relays dangerous faults such as sticky contacts can be recognised safely. To further increase this safety the relays are doubled (redundant).

Safety relays with forced contacts are used for installations that have a limited amount of safety functions and realise logical couplings, such as the emergency stop button.

Each emergency stop a unique ID

To prevent a receiver reacting to each radio signal on the right frequency, each wireless emergency stop is tuned to the receiver in advance. When a number of radio-graphically operated machines are next to each other and ID codes are not used it can result in machines reacting to the wrong signals. This is obviously creates a risk.

56-bit ID Safety Code

The Indus Gemini features a 56-bit ID Safety Code; with which countless combinations are made possible, resulting in an almost non-existent chance of the same specific coding with two transmitters simultaneously.