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When will a door in a safety fence need a monitoring switch?
To answer this question you need to consider two questions, based on EN ISO 14120 section 6.4.4:
Why would people go in? If the reason for access is a standard operating procedure or remedy of frequent errors, then the door must be monitored. If the reason for access is maintenance, repair, or less frequent errors, then a monitoring switch will not be needed. However, if there is no switch, it must not be possible to open the door without using a tool or key.
How often will people go in? Even if access is only needed for maintenance, repair, or less frequent errors, but more than once a week, the door will need a monitoring switch.
Watch our infographic “Machine safety – When and why to use movable guards” to get more info about this subject!