Rockwell-automation DC3RD Digital Regenerative DC Drive User Guide 1/4 Manual de usuario Pagina 43

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Deadband is factory calibrated to approximately the 3
o’clock position for 60 Hz AC line operation. Recalibrate
the deadband to the 9 o’clock position for 50 Hz AC line
operation. If you hear motor noise (a humming or buzzing
sound), the deadband might be set too high. Turn the
deadband trimpot CCW until the motor noise ceases. See
Figure 9, page 40, for recommended deadband settings.
35Calibration
250-0285-rev1.qxd 4/26/00 9:36 AM Page 35
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