Measurement of main circuit voltages, currents and powers
Use an FFT to measure the output voltage accurately. A tester or general measuring instrument
cannot measure accurately.
When the carrier frequency exceeds 5 kHz, do not use this instrument since using it may increase
eddy current losses produced in metal parts inside the instrument, leading to burnout. In this case,
use an approximate-effective value type.
When the setting of Pr. 195 "ABC1 terminal function selection" is the positive logic
A digital power meter (designed for inverter) can also be used to measure.
7 - 14
Across A1 and C1
(such as tester)
Across B1 and C1
Measuring Points and Instruments (2)
Precautions for maintenance and inspection
Remarks (reference measured value)
Across A1 and C1 Discontinuity Continuity
Across B1 and C1 Continuity