MACHINERY & MACHINE SAFETY
the equipment it is installed on, the frequency of use and the environment it is operating in.
The good news for machinery end-users is that HSG180 requires the machine and the ESPE supplier to supply information relating to routine maintenance and inspection requirements. This should help the end-user to develop a robust inspection and set an initial test regime frequency. The guide also requires that the initial inspection and test is carried out by competent persons, such as an in-house inspector, the installer or supplier, or an independent assessor.
The results of any inspections must also be recorded. The HSG180 guide helps the inspector to ensure that the inspection and test process achieves a good general standard of performance. For example, it should not be possible for the dangerous parts of the machine to be set in operation while any part of a person is in such a position as to actuate the AOPD. It is clear that there is an increased need for adequate protection of people from the safety risks associated with industrial robot systems. However, we continue to see instances where the need for ESPE testing has not been realised. Whilst functional safety checks are recognised as good practice, they are no substitute for the required periodic testing. The stop time test, performed as part of the periodic test, would detect any deteriorating system parts which no longer offer the required protection. This is something that usually cannot be seen, like in fixed guarding, and therefore can only be proven by testing.
performed as p parts which no usually cannot proven by testin As industry ev human-machin dependably fulfi therefore perfe as a separate ta
As industry evolves, there is a need for greater interoperability and human-machine interface. While the use of ESPE offers many benefits, to dependably fulfil its purpose it must be regularly inspected and tested. It is therefore perfectly possible that inspection of ESPE will need to be treated as a separate task, and there are many factors that should be carefully and
volves, there is a need for greater interoperability and ne interface. While the use of ESPE offers many benefits, to fil its purpose it must be regularly inspected and tested. It is ctly possible that inspection of ESPE will need to be treated ask, and there are many factors that should be carefully and
nteroperability and offers many benefits, to nspected and tested. It is E will need to be treated at should be carefully and
skilfully evaluated. Also, once the ESPE inspection has been completed, it must also be documented so that evidence can be produced to verify that the appropriate inspection regime has been followed. With HSG180 also requiring that competent persons carry this work out, this may put pressure on in-house resources to perform this additional work.
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part of the periodic test, would detect any deteriorating system longer offer the required protection. This is something that be seen, like in fixed guarding, and therefore can only be ng.
ct any deteriorating system n. This is something that therefore can only be
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FACTORY&HANDLINGSOLUTIONS | MARCH 2021 ORY&HANDLINGSOL 21
DLINGSOLUTIONS | MARCH 2021
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