![CARLO GAVAZZI RVDFA110020 Advanced User'S Manual Download Page 39](http://html.mh-extra.com/html/carlo-gavazzi/rvdfa110020/rvdfa110020_advanced-users-manual_2558649039.webp)
38
Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 23/03/2011
ABNORMALITY
CHECK POINT
COUNTERMEASURE
Motor
operation
speed fixed
Is the wiring for analog frequency input correct?
• Examining the wiring and correct it.
Is the operation mode setting correct?
• Examining the wiring and correct it.
Is the loading too heavy?
• Check the Operation panel
Motor
operation
at speed
too high or
too low
Is the specification of motor (poles, voltage) correct? • Reduce loading
Is the gear ratio correct?
• Reconfirm motor specification.
Is the highest output frequency setting correct?
• Reconfirm gear ratio
Is the voltage on motor side reduced extremely?
• Reconfirm highest output frequency
Abnormal
speed
variation at
operation
Is the loading too heavy?
• Reduce loading variation
Is the loading variation too large?
• Increase inverter and motor capacity
Is the input power source steady and stable?
• Install AC reactor on the power supply input side
5.6 General Malfunction Examination Method
RVDF Advanced User Manual