Mitsubishi MELSEC-WS series, User Manual

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Chapter 9
77
Commissioning
9
Commissioning
Do not commission without a check by qualified safety personnel!
Before initial commissioning of a system using a MELSEC-WS safety controller, it
must be checked and released by qualified safety personnel.
Check the hazardous area!
Ensure that no one is located in the hazardous area before commissioning.

Check the hazardous area and secure it against being entered by people (e.g. set
up warning signs, attach blocking ropes or similar). Observe the relevant laws and
local regulations.
9.1 Full approval of the application
System commission may only be carried out if full approval was successful. Full
approval may only be performed by professionals trained accordingly.
The full approval includes the following items to be checked:

Check whether all safety related parts of the installation (cabling, connected
sensors and actuators, configuration settings) are according to the relevant safety
standards (e.g. EN/ISO 13849-1 or IEC 62061).
 Check the devices connected to the safety controller in accordance with the test
notes in the accompanying manual.
 Label all connections (connection cables and plugs) at the safety controller clearly
and without ambiguity to avoid confusion. Since the MELSEC-WS safety controller
has several connections of the same design, ensure that disconnected cables or
plugs cannot be connected back unintentionally to the wrong connection.
 Check the signal paths and the correct inclusion in higher-level controllers.

Check the correct data transfer from and to the MELSEC-WS safety controller.
 Check the logic program of the safety controller.

Perform a complete validation of the safety functions of the system in each
operating mode and an error simulation. Observe the response times of the
individual applications in particular.
 Completely document the configuration of the system, the individual devices and
the result of the safety check.
 In order to prevent unintentional overwriting of the configuration, activate the write
protection of the configuration parameters of the MELSEC-WS safety controller.
Modifications are only possible if the write protection has been deactivated.
ATTENTION