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.
Series
GS9A
G9SX
NE1A
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
Terminal
GS1
GS2
EDM
(output)
- 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
of the application, a throughout risk assessment for the whole safety system has to be
carried out.
2. The Safe Disable function does not cut the power supply to the drive and does not
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.
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
less than 10 ms.
Model
Norms to comply
301
ISO13849-2 cat4, SIL3
GS226-T15-RC
IEC61508 SIL1-3
SCPU01-V1
IEC61508 SIL3
current OFF
current ON
current OFF
current OFF
conducted
not conducted
forbidden
forbidden
Status
current OFF
current ON
Not conducted
forbidden
93
Certification date
06.06.2007
04.11.2004
27.09.2006
current ON
current ON
not conducted
Allowed

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