General; Functional Scope; Description; Setting Notes - Siemens SIPROTEC 7SK80 Manual

Motor protection
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Functions

2.1 General

2.1
General
The settings associated with the various device functions may be modified using the operating or service inter-
face in DIGSI in conjunction with a personal computer. Some parameters may also be changed using the con-
trols on the front panel of the device. The procedure is set out in detail in the SIPROTEC System Description /1/.
2.1.1

Functional Scope

The 7SK80 relay comprises protection functions and additional functions. The hardware and firmware is de-
signed for this scope of functions. Additionally, the control functions can be matched to the system require-
ments. Individual functions can be activated or deactivated during the configuration procedure or the interaction
of functions be modified.

2.1.1.1 Description

Setting the Functional Scope
The available protection and additional functions must be configured as Enabled or Disabled. Some func-
tions allow the user to select among several alternatives which are described further below.
Functions configured as Disabled are not processed by the 7SK80. There are no indications, and the corre-
sponding settings (functions, limit values) are not relevant during configuration.
Note
Available functions and default settings are depending on the ordering code of the relay (see A.1 for details).

2.1.1.2 Setting Notes

Setting the Functional Scope
Your protection device is configured using the DIGSI software. Connect your personal computer either to the
USB port on the device front or to port A or port B on the bottom side of the device depending on the device
version (ordering code). The operation via DIGSI is explained in the SIPROTEC 4 System Description.
The Device Configuration dialog box allows you to adjust your device to the specific system conditions.
Password no. 7 is required (for parameter set) for changing configuration parameters in the device. Without the
password the settings can only be read but not edited and transmitted to the device.
28
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010

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