34
•
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.
