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Functions
2.6 Change Group
2.6
Change Group
Two independent groups of parameters can be set for the device functions. During operation, the user can
switch between setting groups locally using the operator panel, binary inputs (if so configured), the operator
and service interface from a personal computer or via the system interface.
A setting group comprises the setting values for all functions that have been configured as Enabled (see
Section 2.4). In the 7UM62 two independent setting groups (A and B) are available. The two setting groups
have identical functions but their setting values can be different.
Where different settings are required for operational reasons, e.g. in pumped storage power stations with a
machine operating alternately as a generator and a motor, these settings are made in the setting groups and
stored in the device. Depending on the operating mode, the applicable setting group is activated, usually via a
binary input.
If multiple setting groups are not required, Group A is the default selection. The rest of this section is then not
relevant.
2.6.1
Setting Notes
General
If the changeover option is desired, on function extent configuration the group changeover must be set to Grp
Chge OPTION = Enabled (address 103). When setting the function parameters, you configure first setting
group A, then setting group B. To find out how to proceed for this, how to copy and to reset setting groups, and
how to switch between setting groups during operation, please refer to the SIPROTEC 4 System Description
/1/.
How to switch between setting groups externally using binary inputs is described in the „Mounting and Connec-
tions" section in Chapter 3.
2.6.2
Settings
Addr.
Parameter
302
CHANGE
2.6.3
Information List
No.
Information
-
GroupA act
-
GroupB act
7
>Set Group Bit0
62
Setting Options
Group A
Group B
Binary Input
Protocol
Type of In-
formation
IntSP
Setting Group A is active
IntSP
Setting Group B is active
SP
>Setting Group Select Bit 0
Default Setting
Group A
Change to Another Setting Group
Comments
C53000-G1176-C149-7, Release date 03.2010
Comments
SIPROTEC, 7UM62, Manual
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