Figure 11: 4-Quadrant Representation Of Active And Reactive Power - WAGO 750-495/040-00 Series Manual

54 Function Description
The 4-quadrant representation has the following form:

Figure 11: 4-Quadrant Representation of Active and Reactive Power

The 4-quadrant representation is also shown in WAGO- I/O-CHECK for the
"Overview," "Phase, Lx" and "Power" measured value views in the "3-Phase
Power Measurement Module" dialog field.
Phase angle
The phase angle between voltage and current is calculated for each phase using
time-synchronous sampling. The phase angle is indicated in degrees.
Rotary field detection
The zero crossings of the voltage characteristics for the 3 phases are monitored
by rotary field detection. The direction of rotation of a motor or machine can only
be determined when the phase sequence L1-L2-L3 at the I/O module has been
connected the same way as at the motor and when the motor corresponds to the
guidelines of VDE 0530-8 or DIN EN 60034-8 with regard to "Terminal
designations and direction of rotation" (L1 on U engine, L2 on V engine, L3 on W
engine).
Phase sequence L1-L2-L3 signals clockwise rotation; a reversed phase
sequence signals counterclockwise rotation. Caution: It is not possible to detect
double reversing.
Manual
Version 1.2.0
750-495/040-00x 3-Phase Power Measurement Module 690 V
WAGO-I/O-SYSTEM 750 XTR