Final Preparation Of The Device - Siemens siprotec 7SA6 User Manual

8.4

Final Preparation of the Device

7SA6 Manual
C53000-G1176-C133-1
Tighten the used screws at the terminals; those ones not being used should be slightly
fastened. Ensure all pin connectors are properly inserted.
Caution!
Do not use force! The tightening torques according to Chapter 2 must not be
exceeded as the threads and terminal chambers may otherwise be damaged!
Verify that all service settings are correct. This is a crucial step because some setting
changes might have been made during commissioning. The protective settings under
device configuration, input/output configuration are especially important (Section 5.1)
as well as the power system data, and activated Groups A through D (if applicable).
All desired elements and functions must be set 21. See Chapter 6. Keep a copy of all
of the in-service settings on a PC.
Check the internal clock of the device. If necessary, set the clock or synchronize the
clock if it is not automatically synchronized. For assistance, refer to Sub-section 7.2.1.
The Annunciation memory buffers should be cleared, particularly the Operational
messages and fault messages. Future information will then only apply for actual
system events and faults. To clear the buffers, press 0$,1 0(18 → $QQXQFLDWLRQ
→ 6HW5HVHW. Refer to Sub-section 7.1.1 if further assistance is needed. The
numbers in the switching statistics should be reset to the values that were existing
prior to the testing, or to values in accordance with the user's practices. Set the
statistics by pressing 0$,1 0(18 → $QQXQFLDWLRQ → 6WDWLVWLF. Refer to Sub-
section 7.1.2 if more information is needed.
Press the key, several times if necessary, to return to the default display.
ESC
Clear the LEDs on the front panel by pressing the
picked up prior to clearing the LEDs are reset when the clearing action is performed.
Future indications of the LEDs will then apply only for actual events or faults. Pressing
the key also serves as a test for the LEDs because they should all light when the
LED
button is pushed. Any LEDs that are lit after the clearing attempt are displaying actual
conditions.
The green "581" LED must be on. The red "(5525" LED must not be lit.
Close the protective switches. If test switches are available, then these must be in the
operating position.
The device is now ready for operation.
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Installation and Commissioning
key. Any output relays that were
LED
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