Changes
- Terminology consistency improved (e.g. binary inputs are now always called digital inputs).
- Tech data modified to be more informative about what type of measurement inputs are used (phase
currents/voltages, residual currents/voltages), what component of that measurement is available (RMS,
TRMS, peak-to-peak) and possible calculated measurement values (powers, impedances, angles etc.).
- Improvements to many drawings and formula images.
- AQ-S254 Functions included list Added: Indicator objects.
- Event read mode parameter added to Modbus description.
- Added inches to Dimensions and installation chapter.
- Added raising frames, wall mounting bracket, combiflex frame to order code.
- Added logical input and logical output function descriptions.
- Additions to Abbreviations chapter.
- Added button test description to Local panel structure chapter.
- Added note to Configuring user levels and passwords chapter that AQ-250 frame units generate a
time-stamped event from locking and unlocking user levels.
- Added note to Configuring user levels and passwords chapter that user level with a password
automatically locks itself after 30 minutes of inactivity.
- Added more "Tripped stage" indications and fault types to Measurement value recorder function.
- Updated: Digital input activation and release threshold setting ranges and added drop-off delay
setting.
Revision
2.04
Date
8.6.2021
Changes
- Increased the consistency in terminology
- Various image upgrades
- Visual update to the order codes
Revision
2.05
Date
22.6.2021
Changes
- Fixed phase current measurement continuous thermal withstand from 30A to 20A.
- Fixed lots of timing errors written to registers table. "Prefault" is -200 ms from Start event, "Pretrigger" is
-20 ms from trip (or start if fault doensn't progress to trip), "Fault" is start (or trip if fault doesn't progress
to trip).
- Added event history technical data
Revision
2.06
Date
21.6.2022
A
AQ
Q-S254
-S254
Instruction manual
Version: 2.06
6
© Arcteq Relays Ltd
IM00024
Summary of Contents for AQ-S254
Page 1: ...AQ S254 Alarm and Indication IED Instruction manual...
Page 2: ......
