© Reagnpiep © Reagnpiep Minteq Toolbox Meeting February 2012 E-Stop Training Applicable Standards: Directive 98/37/EC NFPA79(2007) ISO 13850:2006

© Reagnpiep E-Stop Training The purpose of an Emergency Stop (E-Stop) is to avert or reduce existing hazards to people, machinery or work in progress To be initiated by a single human action when the normal stopping function is inadequate.

© Reagnpiep E-stop: Standard Equipment must be equipped with: A device to safely and completely stop the machine in normal operations (on/off switch). Must also be equipped with 1 or more emergency stop device(s) for immediate danger situations.

© Reagnpiep E-Stop Execution Actuators of emergency stop devices must be colored RED on yellow background Actuator of a push button operated device must be palm or mushroom head type Other types of emergency stop devices include (but are not limited to): Pull cord or push bar operated switches

© Reagnpiep Exceptions for use of emergency stop device(s): When danger is not affected by emergency stop Hand held or hand-guided machinery E-stop Exceptions

© Reagnpiep Releasing the Emergency stop: Stop command must continue after releasing emergency stop device(s) Reset only with appropriate action, machine should not automatically restart Restart machine: renewed activation or reset E-stop Operation

© Reagnpiep Requirements for Emergency stop device (s): Clearly identifiable, clearly visible and quickly accessible without hazard Withstand extreme loads to activate Stop the process as quickly as possible without additional risks; shutdown power (Possibly) activate additional safeguards Must not be impaired by measures against inadvertent operation E-stop Operation

© Reagnpiep Complex systems (combination of processes): Stop device(s) including emergency stop device(s) must stop entire process, if continued operations can cause risks. Emergency stop overrides selector and/or other control device(s) E-stop Operation

© Reagnpiep E-Stop Maintenance Emergency stop devices should be in a locations Preventative Maintenance (PM) system Consider the need for periodic testing based on the components of the emergency stop frequency or infrequency of use operating conditions operating environment

© Reagnpiep E-Stop Reminder The emergency stop function shall not be applied as the primary means to de-energize equipment Lockout/tagout still applies Emergency stop should function only as a backup measure to LOTO

© Reagnpiep E-Stop - Site Examples List and/or pictures of E-Stops in use at your site

© Reagnpiep Questions?