Siemens SIPROTEC 6MD665, Manual

Page: 139 / 222

3.4 Final Preparation of the Device
125
6MD665 Manual
C53000-G1876-C103-3
3.4 Final Preparation of the Device
Firmly tighten all screws. Tighten all terminal screws, including those that are not used.
Caution!
Inadmissable tightening torques
Non–observance of the following measure can result in minor personal injury or prop-
erty damage:
The tightening torques must not be exceeded as the threads and terminal chambers
may otherwise be damaged!
In case service settings were changed, check if they are correct. Check if power
system data, control and auxiliary functions to be found with the configuration param-
eters are set correctly (Section 2). All desired elements and functions must be set ON.
Ensure that a copy of the setting values is stored on the PC.
The user should check the device-internal clock and set/synchronise it if necessary,
provided that it is not synchronised automatically. Refer to the SIPROTEC
®
system
description /1/ for more information on this.
The indication buffers are deleted under MAIN MENU
→
Indications
→
Delete/Set,
so that in the future they only contain information on actual events and states (see also
/1/). The counters in the switching statistics should be reset to the values that were
existing prior to the testing (see also SIPROTEC
®
system description /1/).
Press the
(6&
key, several times if necessary, to return to the default display. The
default display appears in the display (e.g. display of operation measured values).
Clear the LEDs on the front panel by pressing the
/('
key, so that they only show real
events and states. In this context, also output relays probably memorized are reset.
Pressing the
/('
key also serves as a test for the LEDs on the front panel because
they should all light when the button is pushed. Any LEDs that are lit after the clearing
attempt are displaying actual conditions.
The green ”RUN” LED must be on. The red ”ERROR” 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.
■