ABB SPAC 315 C User Manual And Technical Description page 107

Serial
communication
parameters
Event codes
High-set earth-fault stage I
Start current I >>
0
Start time, typ.
Operate time
Reset time, typ.
Drop-off/pick-up ratio, typ.
Operate time accuracy
Operation accuracy
When the combined overcurrent and earth-
fault relay module SPCJ 4D29 is connected to
a data communication unit. e.g. SRIO 1000M,
over a fibre-optic SPA bus, the module will
spontaneously generate event markings e.g. for
a printer. The events are printed out in the
format: time, text and event code. The text can
be defined and written by the user into the
communication unit.
The events coded E1...E16 can be included in
or excluded from the event reporting by writing
an event mask V155 for the overcurrent events
and V156 for earth-fault events to the module
over the SPA bus. The event masks are binary
numbers coded to decimal numbers. The event
codes E1...E8 are represented by the numbers 1,
2, 4...128. An event mask is formed by multiply-
ing the above numbers either by 0, event not
included in reporting, or 1, event included in
reporting and by adding the numbers received.
Check for the procedure of a manual calculation
of the checksum.
The event masks V155 and V156 may have a
value within the range 0...255. The default
value of the combined overcurrent and earth-
fault relay module SPCJ 4D29 is 85 both for
overcurrent and earth-fault events, which means
that all start and operate events are included in
the reporting, but not the resetting. Check for
Event codes of the combined overcurrent and earth-fault relay module SPCJ 4D29:
Code Event
E1 Starting of stage I>
E2 Resetting of starting of stage I>
E3 Operation of stage I>
E4 Resetting of operation of stage I>
E5 Starting of stage I>>
E6 Resetting of starting of stage I>>
E7 Operation of stage I>>
E8 Resetting of operation of stage I>>
Default checksum for mask V155
>>
0
the procedure of a manual calculation of the
checksum.
The output signals are monitored by codes
E17...E26 and these events can be included in or
excluded from the event reporting by writing an
event mask V157 to the module. The event
mask is a binary number coded to a decimal
number. The event codes E17...E26 are repre-
sented by the numbers 1, 2, 4...512. An event
mask is formed by multiplying the above num-
bers either by 0, event not included in reporting
or 1, event included in reporting and by adding
the numbers received. Check for the procedure
of a manual calculation of the checksum.
The event mask V157 may have a value within
the range 0...1024. The default value of the
combined overcurrent and earth-fault relay
module SPCJ 4D29 is 768 which means that
only the operations are included in the report-
ing.
Codes E50...E54 and the events represented by
these cannot be excluded from the reporting.
More information about the serial communica-
tion over the SPA bus can be found in the
manual "SPA bus communication protocol",
code No 34 SPACOM 2 EN1.
or ∞, infinite
0.1...10.0 x I
n
40 ms
0.05...300 s
40 ms
0.98
±2% of set value or ±25 ms
±3% of set value
Weight factor Default value
of the factor
1
2
4
8
16
32
64
128
1
0
1
0
1
0
1
0
85
27