Siemens 7SA511 Configuring a Parameter Set, Configuring Each Parameter in Each Set, Param.C/O

Set A

Set B

Set C

Set D

2

3

F4

Note:

This key sequence1

7SA511 Line Protection Relay Chapter 5

Only one parameter set is active at a time. You can change the active parameter set during relay operation (provided no protection functions are picked up) using the operator panel or through the binary inputs. If the relay is connected to a PC via the front port, you can use DIGSI® software to change the active parameter set.

Prerequisite Setting:

Addr.	LCD Text
7885	PARAM.C/O

Description

Parameter changeover feature

Setting

EXIST

There are three operations available when parameter changeover is programmed as existing:

Configuring a parameter set

￿Selecting the active parameter set Deactivating the parameter set

Each of these operations is discussed separately in the following sections.

5.8.1 Configuring a Parameter Set

There are two ways to configure the settings for a parameter set:

￿Configure each parameter in each set

Use the parameter set copy function to copy the parameters from one set to another

Configuring Each Parameter in Each Set

To configure settings by parameter set, you must enter the appropriate key sequence as described below, then enter the password to change the relay to programming mode.

(Accesses this parameter set

The message “COPYING TERMINATED” will appear in he display when the F key sequences are used. Ignore this message and press Enterto clear it.

When one of these key sequences is used while the relay is in display mode, the parameters for the selected set can be displayed. The parameter address number in the display will be preceded by the parameter set IDB1001letter105InPRIMARY- D). For example, the parameter at address 1105 in Set B appears as:

July 27, 1995 5-19