9440300990 Rev J
85
DECS-250
Event Recorder
Event Recorder
DECS-250 event recorder functions include sequence-of-events recording (SER), data logging
(oscillography), and trending.
Sequence-of-Events Recording
BESTCOMSPlus Navigation Path:
Metering Explorer, Reports, Sequence of Events
HMI Navigation Path:
Metering Explorer, Reports, Sequence of Events
A sequence of events recorder monitors the internal and external status of the DECS-250. Events are
scanned at four millisecond intervals with 1,023 events stored per record. All changes of state that occur
during each scan are time- and date-stamped. Sequence of events reports are available through
BESTCOMS
Plus
®
.
Any one of over 400 monitored data/status points can be recorded in the sequence of events. All points
are enabled by default. Sequence of Events Setup is illustrated in Figure 79.
Figure 79. Sequence of Events Setup
Data Logging
BESTCOMSPlus Navigation Path:
Settings Explorer, Report Configuration, Data Log
HMI Navigation Path:
Settings, Configuration Settings, Data Log
The data logging function of the DECS-250 can record up to 6 oscillography records. DECS-250
oscillography records use the IEEE Standard Common Format for Transient Data Exchange
(COMTRADE). Each record is time- and date-stamped. After 6 records have been recorded, the DECS-
250 begins recording the next record over the oldest record. Because oscillography records are stored in
nonvolatile memory, interruptions in DECS-250 control power will not affect the integrity of the records.
Data log settings are configured in BESTCOMS
Plus
and illustrated in Figure 80 through Figure 83.
Содержание DECS-250
Страница 2: ......
Страница 6: ...iv 9440300990 Rev J Revision History DECS 250 ...
Страница 16: ...xiv 9440300990 Rev J Contents DECS 250 ...
Страница 20: ...4 9440300990 Rev J Introduction DECS 250 ...
Страница 28: ...12 9440300990 Rev J Power Stage DECS 250 ...
Страница 32: ...16 9440300990 Rev J Voltage and Current Sensing DECS 250 ...
Страница 40: ...24 9440300990 Rev J Synchronizer DECS 250 ...
Страница 52: ...36 9440300990 Rev J Auxiliary Control DECS 250 ...
Страница 56: ...40 9440300990 Rev J Contact Inputs and Outputs DECS 250 ...
Страница 84: ...68 9440300990 Rev J Limiters DECS 250 ...
Страница 108: ...92 9440300990 Rev J Power System Stabilizer DECS 250 Figure 85 PSS Function Blocks and Software Switches ...
Страница 114: ...98 9440300990 Rev J Power System Stabilizer DECS 250 Figure 96 PSS Parameter Settings ...
Страница 124: ...108 9440300990 Rev J Stability Tuning DECS 250 ...
Страница 126: ...110 9440300990 Rev J Mounting DECS 250 Figure 103 Overall and Projection Mounting Dimensions ...
Страница 127: ...9440300990 Rev J 111 DECS 250 Mounting Figure 104 DECS 250 Escutcheon Plate Dimensions ...
Страница 128: ...112 9440300990 Rev J Mounting DECS 250 Figure 105 Panel Cutting and Drilling Dimensions for DECS 250 Panel Mounting ...
Страница 198: ...182 9440300990 Rev J Timekeeping DECS 250 ...
Страница 210: ...194 9440300990 Rev J CAN Communication DECS 250 ...
Страница 304: ...288 9440300990 Rev J Maintenance DECS 250 ...
Страница 316: ...300 9440300990 Rev J Specifications DECS 250 ...
Страница 334: ...318 9440300990 Rev J Analog Expansion Module DECS 250 ...
Страница 341: ...9440300990 Rev J 325 DECS 250 Contact Expansion Module Figure 188 CEM 2020 Input Contact and Output Contact Terminals ...
Страница 351: ......