Schneider Electric PM5100 Manual De Usuario

PowerLogic™  PM5100 series user guide 

Chapter 9—Power quality

© 2014 Schneider Electric All Rights Reserved

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The vertical axis of the harmonics graph indicates the harmonic’s magnitude as a 
percentage of the fundamental harmonic, and is scaled based on the largest 
harmonic displayed. At the top of each vertical bar is a marker that shows the 
maximum value of the harmonic. If the harmonic is greater than the fundamental 
harmonic, this marker is triangular-shaped to show that the value is out of range.

1. Navigate to Harm > TDD. The Total demand distortion information displays.

Your meter’s Modbus map includes registers for harmonics data for 

integration into your power or energy management system.

2. Press   to return to the main display screens.

•

See “Front panel display and meter setup” on page 29 for front panel menu 
navigation details.

•

Search PM5100 Modbus register list at www.schneider-electric.com to download 
the Modbus map.

You can view THD/thd data using the front panel.

1. Navigate to THD. On the THD/thd Select screen, press THD to display values that 

use the calculation method based on the fundamental harmonic, or thd to display 
values that use the calculation method based on the RMS value of all harmonics in 
that phase (including the fundamental). 

2. Press the current or voltage THD or thd values you want to view. The total harmonic 

distortion percentage values are displayed.

3. Press   to return to the main display screens.

Your meter’s Modbus map includes registers for total harmonic distortion data 

for integration into your power or energy management system.

Phase A

Phase B

Phase C

TDD

TDD

Total demand distortion



Amps

I

Total harmonic distortion data for per phase and neutral currents.

V L-L

U

Total harmonic distortion data line-to-line voltage.

V L-N

V

Total harmonic distortion data line-to-neutral voltage.

