Measurement of main circuit voltages, currents and powers
Precautions for maintenance and inspection
7 - 14
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.
Fault signal
Across A1 and C1
Across B1 and C1
Moving-coil type
(such as tester)
Continuity check
[Normal]
[Fault]
Across A1 and C1 Discontinuity Continuity
Across B1 and C1 Continuity
Discontinuity
Item
Measuring point
Measuring instrument
Remarks (reference measured value)
Tab. 7-5:
Measuring Points and Instruments (2)
Содержание FR-F820-00046
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Страница 114: ...System configuration for Ethernet communication FR F800 E Installation and wiring 2 86 ...
Страница 172: ...Basic operation procedure JOG operation Basic operation 4 32 ...
Страница 812: ...Inverter to inverter link function FR F800 E Parameters 5 640 ...
Страница 874: ...Measurement of main circuit voltages currents and powers Precautions for maintenance and inspection 7 20 ...
Страница 900: ...Outline dimension drawings Specifications 8 26 ...
Страница 928: ...EC Declarations of Conformity Appendix A 28 A 6 EC Declarations of Conformity A 6 1 FR F820 FR F840 FR F842 series ...
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