Leuze electronic
MSI-TB
26
The reliable interaction of safety sensor, safety relay and machine must be periodically tested in order to
detect changes to the machine or impermissible tampering with the safety sensor. Testing intervals are
determined by nationally applicable regulations (recommendation acc. to IEC/TS 62046: 6 months).
Have all tests performed by competent persons.
Observe the nationally applicable regulations and the time periods specified therein.
The function of the safety relay must be checked daily or at change of shifts, and at each change of
machine operating mode as specified in the corresponding checklist (see chapter 9.3.1 Check list daily
or at change of shift ) so that damages or unauthorized manipulations can be detected.
Stop the dangerous state.
Check safety relay, transmitter, receiver and, if applicable, deflecting mirrors for damage or manipula
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tion.
Interrupt the light beam of the light beam safety device from a position outside the danger zone and
ensure that the machine cannot be started with an interrupted light beam.
Start the machine.
Ensure that the dangerous state is stopped as soon as a light beam is interrupted.
daily or at shift change
authorized operating personnel or instructed person
Table 9.2:
Check list daily or at change of shift
Make certain that there are no people in the danger zone.
!
If you answer one of the items on the check list (see table 9.2) with no , the machine must no longer be
operated.
Have the entire machine inspected by a competent person (see chapter 9.1 Before the initial start-up
and following modifications ).
Are safety relay, light beam safety device, connecting cables, plugs and command
devices undamaged and free of any signs of manipulation?
Are all point of operations at the machine accessible only through one or more protec
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tive fields of light beam safety devices?
Are all additional protective devices mounted correctly (e.g., safety guard)?
Does the start/restart interlock prevent the automatic start-up of the machine after the
light beam safety device/safety relay has been switched on or activated?
Interrupt a light beam of the light beam safety device with a test object during opera
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tion.
Is the dangerous movement shut down immediately?
