2.4 Change Group
39
7UM61 Manual
C53000-G1176-C127-3
2.4
Change Group
Two independent groups of parameters can be set for the device functions. During
operation the user can locally switch between setting groups using the operator panel,
binary inputs (if so configured), the operator and service interface per PC, or via the
system interface.
A setting group includes the setting values for all functions that have been selected as
Enabled
during configuration (see Section 2.2). In the 7UM61 device, two indepen-
dent setting groups (A and B) are available. Whereas setting values may vary, the se-
lected functions of each setting group remain the same.
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 not relevant.
2.4.1
Setting Notes
General
If the changeover option is desired, on function extent configuration group changeover
must be set to
Grp Chge OPTION
=
Enabled
(address
103
). When setting the func-
tion parameters, you configure first setting group A, then setting group B. How to
proceed and how to copy or reset settings groups are described in the SIPROTEC
®
System Description /1/.
How to switch between setting groups externally using binary inputs is described in the
Mounting and Commissioning section.
2.4.2
Settings
2.4.3
Information List
Addr.
Parameter
Setting Options
Default Setting
Comments
302
CHANGE
Group A
Group B
Binary Input
Protocol
Group A
Change to Another Setting Group
No.
Information
Type of In-
formation
Comments
-
Group A
IE
Group A
-
Group B
IE
Group B
7
>Set Group Bit0
EM
>Setting Group Select Bit 0
8
>Set Group Bit1
EM
>Setting Group Select Bit 1
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