Exploratory study on the safety of machines controlled by programmable logic controllers by using an automatic plastic injection press Abstract This report proposes a process for evaluating the safety of an automated machine according to the procedure in ISO 14121:1999, as applied to a plastics injection press located in the IRSST’s safety of industrial tools, machines and processes laboratory. The researchers observed different interventions on two similar presses used in two plants in the Québec plastics industry. Their report presents the starting hypotheses, the data considered, and the limitations of the risk analysis of the injection press that was used in the process. Although this project’s results cannot be directly transferred to a risk analysis on another injection press or another type of automated machine, they nevertheless reveal several typically dangerous phenomena, situations and events associated with industrial machines. The document also discusses different safety principles, functions and components integrated into the electrical, programmable electronic and hydraulic control circuits relating to the safety of the press that are applicable to several types of industrial machines. Produced Under this Project Scientific Reports Machine safety - Analysis of risks and means of protection on a plastics injection press Research Report: R-557 Simplified Articles Les multiples façons de cadenasserMachines industrielles Volume 22, n0 3Presses à injection de plastique... sur des grilles Volume 24, n0 3 Scientific Publications Étude sur la sécurité des presses à injection automatisées et leurs systèmes de commande relatifs à la sécuritéChinniah Y., Bourbonnière R.Source : in Actes du colloque - La recherche en SST: Anciens risques et enjeux actuels : Congrès de l'ACFAS (3e : 17-19 mai, 2006 : Montréal, Canada), Réseau de recherche en santé et en sécurité du travail du Québec / RRSSTQ, 2006, (http://www.rrsstq.qc.ca/stock/fra/fichier0141.pdf)Automation Safety: Assessing the risks and understanding safeguardsChinniah Y., Bourbonnière R.Source : Professional Safety, vol. 51, no 12, 2006, p. 26-33Risk assessment and reduction: a machine safety case study from QuebecChinniah Y., Paques J.-J., Champoux M.Source : Professional Safety, vol. 52, no 10, 2007, p. 49-56Appréciation et réduction du risque : étude de cas utilisant une presse à injection de plastiqueChinniah Y.Source : in Conférences scientifiques et symposiums de l'ÉTS : Sécurité des travailleurs et contrôle des risques industriels, (11 septembre, 2008 : Montréal, Canada), 2008, (http://www.etsmtl.ca/zone2/recherche/labo/erest/conf110908.pdf) Additional Information Type: Project Number: 0099-5010 Status: Completed Year of completion: 2008 Research Field: Mechanical and Physical Risk Prevention Team: Yuvin Chinniah (IRSST)Mathieu Champoux (IRSST)Joseph-Jean Paques (IRSST)Réal Bourbonnière (IRSST)Renaud Daigle (IRSST)Christian Sirard (IRSST)