131
Description SPA
parameter
(channel 503)
R, W Value range Default Explanation
Scaling factor 1 503V101 R, W 0...4294967295 1
Scaling factor 2 503V102 R, W 0...4294967295 1
Scaling factor 3 503V103 R, W 0...4294967295 1
Scaling factor 4 503V104 R, W 0...4294967295 1
Scaling factor 5 503V105 R, W 0...4294967295 1
Baud rate 503V211 R, W 4.8/9.6/19.2/38.4 9.6
Number of stop bits 503V212 R, W 1...2 1
Parity 503V230 R, W 0 = no parity
1 = odd
2 = even
0
Silent interval 503V232 R, W 0...65535 ms 20
Time slot width 503V233 R, W 0...255 ms 10
Number of time slots 503V234 R, W 0...255 8
Collision detection enabled 503V235 R, W 0 = disabled
1 = enabled
0
DNP module warning
register
503V168 R Bit coded
0=OK
DNP module status
register
503V169 R Bit coded
0=OK
Measurements
Table 5.1.17.-15 Measured values
Description Parameter
(channel 0)
R, W, P Value
Thermal level V60 R, W (P) 0...106%
a)b)
One-minute average current value V61 R 0...50 x I
n
(CT)
c)
Average current value during the specified
time range
V62 R 0...50 x I
n
(CT)
c)
Maximum one-minute average current
value during the specified time range
V63 R 0...50 x I
n
(CT)
c)
a)
Changing the thermal level via serial communication will generate an event code.
b)
If the thermal protection has been set out of operation, the parameter cannot be written to, and dashes
will be shown on the LCD and “999” when the thermal level is read via the SPA bus.
c)
If the demand value is reset and the specified time has not elapsed, dashes are shown on the LCD and
“999” when the parameter is read via the SPA bus.
5.1.17.1. Event codes
Special codes are determined to represent certain events, such as pickup and tripping
of protection elements and different states of output signals.
The events are stored in the event buffer of the relay. The maximum capacity of the
buffer is 100 events. Under normal conditions the buffer is empty.
Feeder Protection Relay
Technical Reference Manual - ANSI Version
REF610REF610
1MRS755535
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