To Next Page

To Previous Page

• Check that the input speed command wiring between controller and amplifier correspond to the

recommendations of chapter 4.0.0 and check the shield connection of the resolver cables.

7.3.7 Loud noise in the motor at standstill and when running

• Check the rigidity of the mechanical coupling between motor and load (backlash and elasticity in the

gearbox and coupling).

• Activate the function REDUCED SHAFT STIFFNESS AT STANDSTILL in the ADVANCED

FUNCTIONS of the BPCW (version 2.5 and higher).

• Execute the AUTOTUNING command again by choosing a lower band width (Medium or Low).

If the problem remains, redue the AUTO-TUNING procedure by activating the antiresonance filter

(Filter = Antiresonance). The antiresonance filter is accessible from the BPCW version 2.6 and

amplifier EPROM version 5.7.

7.3.8 Position control not possible

• Check the presence of the A, B and Z signals on the amplifier X2 connector by manually turning the

motor shaft and check the wiring between NC and amplifier.

• Check that the Max. speed and ENCODER RESOLUTION parameters are correct (see chapter

5.1.2).

• Check the couting direction of the NC with respect to the sigh of the input command. If direction need

to be reversed, use the function Reverse movement in the BPCW software to get correct operation.

7.3.9 Loss of serial port communication during operation

• Check that serial port cable is properly connected to the amplifier and the PC (see chapter 3.6.0 and

4.1.4)

• Verify that the serial port on the PC side is operational.

• Some custom VGA video drivers are incompatible with the serial port interrupt and it may be

necessary to use a standard Windows video driver such as: VGA (Version 3.0) located in the Windows

Setup menu.

7.4.0 Service and maintenance

When exchanging an amplifier on a machine, proceed as follows:

• Check that the new amplifier has the same hardware configuration as the old amplifier,

• Plug in the parameter EEPROM (or a copy of it) of the old amplifier onto the new one,

• Apply a zero speed input command and start the automatic offset compensation procedure by means of the

OFFSET button on the amplifier front panel.

The new amplifier is then configured like the old one.

NOTE: The encoder output of the new amplifier must be re-programmed by means of the Programmation

function of the ENCODER RESOLUTION module in the BPCW software if the circuit 01612A is used. This is

not necessary on the amplifiers with circuit version 01612B and beyond.

Infranor SMT-BD1 Series User Manual

Questions and Answers: