Juhtimissüsteemidel peavad olema vahendid, mille abil operaatoril saab sekkuda masina töösse ohutult ja kergesti; see nõuab: ...
- spetsiifiliste tegutsemisviiside ettenägemist (nagu nt käivitamine pärast normaalset peatamist, taaskäivitamine pärast töötsükli katkemist või hädaseiskamist, töödeldud detailide eemaldamist masinast, masina ühe osa toimimist teise osa tõrke puhul jne) ...
Control systems shall be provided with the means to enable operator interventions to be carried out safely and easily; this requires: ..
- provision for specific operating modes (e.g. start-up after normal stop, restart after cycle interruption or after emergency stop, removal of the workpieces contained in the machine, operation of a part of the machine in case of a failure of a machine element, etc) ...
When the emergency shutdown system is actuated, accumulated energy must be dispersed as quickly and as safely as possible or isolated so that it no longer constitutes a hazard.
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