Restoring Factory Settings - Siemens Sirius 3RK3 System Manual

Diagnostics / service

8.6 Restoring factory settings

8.6 Restoring factory settings
Factory setting
To restore the factory settings of the safety relay, proceed as follows:
1. Switch the 24 V DC power supply off.
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 flickers yellow.
5. Keep holding down the "RESET" key if the DEVICE LED flickers red.
6. Release the "RESET" key when the DEVICE LED flickers yellow.
7. Keep holding down the "RESET" key if the DEVICE LED flickers red.
8. When the DEVICE LED goes out, release the "RESET" key within 10 s.
The DEVICE LED starts to flash yellow.
Once the factory settings have been restored, the central unit automatically reboots and
switches to configuring mode (⑨, ⑩).
Figure 8-3 Factory setting
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 effects:
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Modular Safety System 3RK3
System Manual, 10/2008, 926 2530-02 DS 02