Siemens ISGS SG8158-00 - Manual (Page 46)

Control & Communications
40 Siemens Energy & Automation, Inc.
and, therefore, apply to both sets. Examples are protective
function enable settings and matrixed output contacts such
as waveform buffers and blocking. All parameter set func-
tions require a password.
6.11.1 Active Set
The active parameter set refers to the parameter set that is
currently used by the ISGS relay—set A or set B. The Active
Set parameter (7101) indicates which set is currently active
on the LCD using the letter A or B.
Refer to Section 6.11.3 on how to make a parameter set the
active set.
6.11.2 Default Set
The default set refers to factory default parameter settings.
These are stored in read-only memory (ROM) and cannot be
overwritten. The default set cannot become an active set in
itself, it has to be copied to either set A or set B (7104 and
7105).
6.11.3 Switching Sets
A parameter set can be made active by selecting the desired
set in the Activation parameter (7103). Switching between
sets requires 4.5 seconds.
Note: Switching the parameter sets could cause a
trip if the pickups are set lower than in the
previous set. View the settings before acti-
vating the new set.
Switching between parameter sets for viewing and configur-
ing parameter settings is possible regardless of address or
address level currently displayed by the LCD, or whether the
parameter can be configured to an alternate setting.
1. At any address, press the F key
followed by either 1 (set A) or 2 (set B).
The LCD displays the following message:
A1502 Pickup 50
110 A
A1502FPickup 50
110 A
PARAMETER SET
COPIED TO EDIT
2. Press Enter. The parameter set has switched to the
alternate set. The LCD displays the same address and
function as before the switch, but the address prefix has
changed to the letter representing the displayed param-
eter set. The alternate parameter may or may not con-
tain a value depending on whether the alternate
parameter had been configured before.
If the parameter was not configurable to an alternate set
(had no prefix), the display will not have changed.
Note: Switching the parameter sets for viewing
and configuration does not make the alter-
nate set active.
For detailed descriptions on how to display, configure, save,
and switch parameters, and when to use a password, refer
to the standard operating procedures in Section 3.5.
Exceptions to the switching of sets are binary inputs, binary
outputs, and the trip contacts in the 6000 address blocks.
For these parameter settings, the relay retains these values
regardless of the parameter set. For example, if the output
contact is set while set A is active, switching to set B will not
change the output contact setting.
6.11.4 Copying Sets
Parameter settings for set A can be copied to set B and vice
versa (7106 and 7107). Factory default settings can also be
copied to either set A or set B (7104 and 7105), but no
parameter set can override the default settings.
B1502 Pickup 50
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