Hitachi WJ200 Series Quick Reference Manual page 95

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Components to be combined
Followings are the example of the safety devices to be combined.
The configuration of and components used in any circuit other than an appropriately pre approved
safety module that interfaces with the WJ200 GS1/GS2 and EDM ports MUST be at least equivalent
to CAT 3 PLd under ISO 13849-1:2006 in order to be able to claim an overall CAT 3 PLd for the
WJ200 and external circuit combination.
The EMI level that the external module has been assessed to must be at least equivalent to that of
Appendix E IEC 62061.
Periodical check (proof test)
Proof test is essential to be able to reveal any dangerous undetected failures after a period of time, in
this case 1 year. Carrying out this proof test at least one a year is the condition to comply the
ISO13849-1 PLd.
- To activate (give current to) GS1 and GS2 simultaneously and separately to see output is
allowed and EDM is conducting
- To activate (give current to) both GS1 and GS2 to see output is allowed and EDM is not conducting
- To activate (give current to) GS1, not to activate GS2 and see output is forbidden and EDM is not conducting
- To activate (give current to) GS2, not to activate GS1 and see output is forbidden and EDM is not conducting
- To deactivate (interrupt current to) both GS1 and GS2 to see output is forbidden and EDM is conducting
Precautions
1. To assure, that the Safe Disable function appropriately fulfills the safety requirements
2. The Safe Disable function does not cut the power supply to the drive and does not
3. The wiring distance for the Safe Disable inputs should be shorter than 30 m.
4. The time from opening the Safe Disable input until the drive output is switched off is
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Series Model
GS9A 301
G9SX GS226-T15-RC
NE1A SCPU01-V1
Terminal
GS1 current OFF
GS2 current OFF
EDM conducted
(output) forbidden
of the application, a throughout risk assessment for the whole safety system has to be
carried out.
provide electrical isolation. Before any installation or maintenance work is done, the
drives power supply must be switched off and place a tag/lock-out.
less than 10 ms.
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Norms to comply
ISO13849-2 cat4, SIL3
IEC61508 SIL1-3
IEC61508 SIL3
Status
current ON current OFF
current OFF current ON
not conducted Not conducted
forbidden forbidden
93
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Certification date
06.06.2007
04.11.2004
27.09.2006
current ON
current ON
not conducted
Allowed
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