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CD1-a
Chapter 7 - Troubleshooting
2.7 - LOUD NOISE IN THE MOTOR AT STANDSTILL AND WHEN RUNNING
¾ Check the rigidity of the mechanical transmission chain between motor and load (backlash and elasticity in the
gearboxes and couplings).
¾ Execute the AUTOTUNING command again by choosing a lower bandwidth (Medium or Low).
¾ If the problem remains, renew the AUTO-TUNING procedure by activating the antiresonance filter
(Filter = Antiresonance).
2.8 - POSITION CONTROL NOT POSSIBLE WITH THE NC
¾ Check the presence of the A, B and Z signals on the amplifier X2 connector by turning manually the motor
shaft and check the wiring between NC and amplifier.
¾ Check the counting direction of the NC with regard to the sign of the speed input command. If there is a
reversal, use the function Reverse Movement in the VISUAL DRIVE SETUP software to get a correct
operation.
3 - SERVICE AND MAINTENANCE
When exchanging an amplifier on a machine, proceed as follows:
¾ Plug the parameter EEPROM (or a copy of it) of the old amplifier on the new one.
¾ Apply a zero speed input command and start the automatic offset compensation procedure by means of the
button on the amplifier front panel.
The new amplifier is configurated like the old one.
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