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6
When one of the protection stages of the module performs a tripping, the indicators for the measured values
of the module indicate the faulty phase, i.e. in which phase(s) the current has exceeded the setting value of
the stage (so called phase fault indication). If for instance, the operation indicator of the I> stage is switched
goes on and the indicators IL1 and IL2 are illuminated, the operation was caused by overcurrent in phases
L1 and L2. When pressing the push-button RESET, the phase fault indication disappears.
The self-supervision alarm indicator IRF indicates that the self-supervision system has detected a permanent
fault. The indicator is lit with red light shortly after the fault has been detected. At the same time the plug-in
module delivers a signal to the self-supervision system output relay of the protection assembly. Additionally,
in most fault cases, a fault code showing the nature of the fault appears on the display of the module. The fault
code, consisting of a red figure one and a green code number, persists until the STEP/RESET button is
pressed. When a fault occurs, the fault code should be recorded and stated when ordering service.
S e t t i n g s
The setting values are shown by the right-most three digits of the display. An indicator close to the setting
value symbol shows when illuminated which setting value is indicated on the display.
I>/In
The operating current of the I> stage as a multiple of the rated
current of the protection. Setting range 0.5...5.0 x In.
t>
The operating time of the I> stage, expressed in seconds, when
k
in the definite time mode of operation (SGF1/1-2-3 = 0-0-0). The
setting range is 0.05...300 s
At inverse definite minimum time mode of operation the
time multiplier k setting range is 0.05...1.00.
I>>/In
The starting current of the I>> stage as a multiple of the rated
current of the protection. Setting range 0.5...40.0 x I
the setting "infinite" (displayed as n ---) can be selected, with switch SGF2/5,
which makes the stage I>> inoperative.
t>>
The operating time of the I>> stage, expressed in seconds. The
setting range is 0.04...300 s
I
>/I
The starting current of the I
o
n
current of the protection. Setting range 1.0...25.0 % I
t
>
The operating time of the I
o
setting range is 0.05...300 s
I
>>/I
The starting current of the Io» stage as a per cent of the rated
o
n
current of the protection. Setting range 2.0...200% I
the setting "infinite" set by switch SGF2/6 (displayed as n ---) can be selected
with switch SGF2/6 which makes the stage I
t
>>
The operating time of the I
o
setting range is 0.05...300 s
Further, the checksums of the programming switchgroups SGF1,SGB and SGR1 are indicated on the display
when the indicators adjacent to the switchgroup symbols on the front panel are illuminated. The checksums
for groups SGF2 , SGR2 and SGR3 are found in the submenus of the corresponding first switchgroup. See
further clause "Main menus and submenus of settings and registers". An example of calculating the checksum
is given in the general description of the D-type SPC relay modules.
PAINOS
PAINOS
. Additionally,
n
> stage as a per cent of the rated
o
> stage, expressed in seconds. The
o
. Additionally,
n
>> inoperative.
o
>> stage, expressed in seconds. The
o
.
n
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