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09120000000 Support: Sat–Thu, 9 AM – 6 PM
Rayan Board Rayan Board
Three-Phase Industrial Inverter

VFD encoder feedback card fault & wiring repair

6 5 4 0 0.0

A/B/Z encoder signal traced on oscilloscope; RS-422 line resistance checked; faulty receiver card replaced; PPR and speed deadband parameters set in inverter firmware; zero-slip test across 0–150 % rated speed.

WhatsApp consultation
Estimated lead time (days)
6
Warranty (days)
90
From
$1.30
A/B/Z encoder signal traced on oscilloscope; RS-422 line resistance checked; faulty receiver card replaced; PPR and speed deadband parameters set in inverter firmware; zero-slip test across 0–150 % rated speed.

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