CARLO GAVAZZI VariFlex3 RVLF Series Quick Start Guide

36 Specications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 18/11/2014
Motor Controllers AC Variable Frequency Drives Type Variex
3
RVLF
5.2. General Troubleshooting
Status Checking point Remedy
Motor runs in wrong
direction
Is the wiring for the output terminals
correct?
Wiring must match U, V, and W terminals
of the motor.
Is the wiring for forward and reverse
signals correct?
Check for correct wiring.
The motor speed can
not be regulated
Is the wiring for the analog frequency
inputs correct?
Check for correct wiring.
Is the setting of operation mode correct?
Check the frequency source set in para-
meters 00-05/00-06.
Is the load too excessive? Reduce the load.
Motor running speed
too high or too low
Check the motor specications (poles,
voltage…) correct?
Conrm the motor specications.
Is the gear ratio correct? Conrm the gear ratio.
Is the setting of the highest output
frequency correct?
Conrm the highest output frequency
Motor speed varies
unusually
Is the load too excessive?
1. Minimize the variation of the load.
2. Consider increasing the capacities of
the inverter and the motor.
Does the load vary excessively?
Consider adding an AC reactor at the
power input side if using single-phase
power.
Is the input power unstable or is there a
phase loss?
2. Check wiring if using three-phase
power
Motor can not run
Is the power connected to the correct L1,
L2, and L3 terminals?
is the charging indicator lit ?
1. Is the power applied?
2. Turn the power OFF and then ON again.
3. Make sure the power voltage is correct.
4. Make sure screws are secured rmly.
Is there voltage across the output
terminals T1, T2, and T3?
Turn the power OFF and then ON again.
Is overload causing the motor to stall? Reduce the load so the motor will run.
Are there any abnormalities in the
inverter?
See error descriptions to check wiring and
correct if necessary.
Is there a forward or reverse run
command?
Has the analog frequency signal been
input?
1. Is analog frequency input signal wiring
correct?
2. Is voltage of frequency input correct?
Is the operation mode setting correct? Operate through the digital keypad

CARLO GAVAZZI VariFlex3 RVLF Series Specifications

General

Brand	CARLO GAVAZZI
Model	VariFlex3 RVLF Series
Category	Controller
Language	English