Siemens SIRIUS 3RK3 - Restoring Factory Settings

7.8 Restoring factory settings
Procedure
To restore the factory settings of the safety relay, proceed as follows:
Step Action
① Switch the 24 V DC power supply o󹪜.
② Hold down the "RESET" key.
③ Switch the 24 V DC power supply on again.
④ Release the "RESET" key only when the DEVICE LED 󹪞ickers yellow.
⑤ Keep holding down the "RESET" key if the DEVICE LED 󹪞ickers red.
⑥ Release the "RESET" key when the DEVICE LED 󹪞ickers yellow.
⑦ Keep holding down the "RESET" key if the DEVICE LED 󹪞ickers red.
⑧ When the DEVICE LED goes out, release the "RESET" key within 10 s.
The DEVICE LED starts to 󹪞ash yellow.
⑨ Once the factory settings have been restored, the 3RK3 central unit automatically restarts and
switches to con󹪝guring mode.
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Figure 7-15 Factory settings
Result
When the factory settings are restored, all the LEDs on the inputs and outputs light up.
The procedure for restoring the factory settings has the following e󹪜ects:
• All con󹪝guring information in the internal memory of the 3RK3 central unit is deleted.
• If the external memory module is plugged in, all the existing data is deleted.
• The DP address is deleted and set to DP address 126.
• For 3RK3 central units with AS-i interface, the saved code sequence table is also deleted.
Note
Alternatively, the factory settings can be restored by Safety ES.
Diagnostics / service
7.8 Restoring factory settings
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006 347