Pulse train output of terminal FM

FAQ > Drive Products > Inverters-FREQROL > FREQROL-A500 > Pulse train output of terminal FM

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No : 22054
Release Date : 2018/08/22 16:30
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I utilize the pulse train output from the inverter's terminal FM to display the rotations per minute display with GOT.
The full-scale value should be 1440 pulses/sec, however, the display value differs in no load, full load, and overload. What is the possible cause?

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FAQ > Drive Products > Inverters-FREQROL
FAQ > Drive Products > Inverters-FREQROL > FREQROL-A500

Answer

Under Advanced magnetic flux vector control, the output frequency varies due to slip compensation. This may cause the output frequency monitor value to change and the pulse count varies accordingly.
Also, under V/F control, the output frequency can change due to stall prevention operation and the output pulse count can decrease.

Product Name: Inverter, magnet motor drive

Product Category: Inverter

Series: FR-A500