6.1.9 SPA
The device can act as a SPA slave. SPA can be selected as the communication protocol for the COM
B port (RS-485 port in the CPU module). When the device includes a serial RS-232 card connector,
the SPA protocol can also be selected as the communication protocol for the COM E and COM F
ports. Please refer to the chapter "Construction and installation" in the device manual to see the
connections for these modules.
The data transfer rate of SPA is 9600 bps, but it can also be set to 19 200 bps or 38 400 bps. As a
slave the device sends data on demand or by sequenced polling. The available data can be
measurements, circuit breaker states, function starts, function trips, etc. The full SPA signal map can
be found in AQtivate (
Tools
→
SPA map).
The SPA event addresses can be found at
Tools
→
Events and logs
→
Event list.
NO
NOTE!
TE!
To access SPA map and event list, an .aqs configuration file should be downloaded from the
relay.
6.2 Analog fault registers
At
Communication
→
General I/O
→
Analog fault registers the user can set up to twelve (12) channels
to record the measured value when a protection function starts or trips. These values can be read in
two ways: locally from this same menu, or through a communication protocol if one is in use.
The following table presents the setting parameters available for the 12 channels.
Table. 6.2 - 44. Fault register settings.
Name
Range
Step Default
Description
Select
record
source
0: Not in use
1…12: I>, I>>, I>>>, I>>>>
(IL1, IL2, IL3)
13…24: Id>, Id>>, Id>>>,
Id>>>> (IL1, IL2, IL3)
25…28: I0>, I0>>, I0>>>,
I0>>>> (I0)
29…32:
I0d>, I0d>>, I0d>>>, I0d>>>>
(I0)
33: FLX
-
0: Not
in use
Selects the protection function and its stage to be used as the
source for the fault register recording.
The user can choose between non-directional overcurrent,
directional overcurrent, non-directional earth fault, directional
earth fault, and fault locator functions.
Select
record
trigger
0: TRIP signal
1: START signal
2: START and TRIP signals
-
0: TRIP
signal
Selects what triggers the fault register recording: the selected
function's TRIP signal, its START signal, or either one.
Recorded
fault
value
- 1000 000.00…1 000
000.00
0.01
-
Displays the recorded measurement value at the time of the
selected fault register trigger.
6.3 Real-time measurements to communication
With the
Real-time signals to communication menu the user can report to SCADA measurements that
are not normally available in the communication protocols mapping. Up to eight (8) magnitudes can be
selected. The recorded value can be either a per-unit value or a primary value (set by the user).
A
AQ
Q-S254
-S254
Instruction manual
Version: 2.06
© Arcteq Relays Ltd
IM00024
71
Summary of Contents for AQ-S254
Page 1: ...AQ S254 Alarm and Indication IED Instruction manual...
Page 2: ......
