Rockwell Automation 1426 PowerMonitor 5000 Unit - Manual (Page 93)

Rockwell Automation Publication 1426-UM001F-EN-P - November 2013 93
Power Quality Monitoring Chapter 5
Refer to the PowerMonitor 5000 Unit Data Tables on page 225 for further
details on these data tables.
Related Functions
• Harmonic Analysis
• Alarm Log
Waveform Recording (M6
model) The PowerMonitor 5000 M6 model can capture and record waveforms of all
current and voltage channels.
Setup
Basic metering setup is required. These configuration parameters are found in the
Configuration.PowerQuality tab:
• Capture_Pre_Event_Cycles - pre-event cycles for waveform capture,
range = 5 (default)…10 cycles
• Capture_Post_Event_Cycles - post-event cycles for waveform capture,
range = 2…30 cycles, default 15
These configuration parameters are found in the
Configuration.Communications_Native tab, and specify the synchronized
waveform broadcast parameters:
• WSB_Mode - waveform synchronization broadcast mode. The options are
the following:
–
0 = Disable (default)
– 1 = Enable
• WSB_Port - specified UDP port for WSB feature,
range = 1001 (default)…1009
To enable WSB capture of waveforms, PTP (IEEE 1588) must be enabled and
the power monitor must be synchronized with the PTP clock. Refer to Network
Time Synchronization.
Operation
Waveforms are recorded as a sequence of single-cycle harmonic data and stored in
a compressed file format in the power monitor. The PowerMonitor 5000 unit can
store up to 256 waveform files or a total of 21,600 cycles of waveform data. The
maximum size of a single waveform record is 3600 cycles plus the specified pre-
event and post-event numbers of cycles.