Hitachi hitachi series inverter user manual GS9A, G9SX, NE1A

Components to be combined

Followings are the example of the safety devices to be combined.

Series	Model	Norms to comply	Certification date
GS9A	301	ISO13849-2 cat4, SIL3	06.06.2007
G9SX	GS226-T15-RC	IEC61508 SIL1-3	04.11.2004
NE1A	SCPU01-V1	IEC61508 SIL3	27.09.2006

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			Status
GS1	current OFF	current ON		current OFF	current ON
GS2	current OFF	current OFF		current ON	current ON
EDM	conducted	not conducted		Not conducted	not conducted
(output)	forbidden	forbidden		forbidden	Allowed

- 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.

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