BONFIGLIOLI Active Cube User Manual page 103

• Set parameter
ue (e. g. 10% of rated motor current). In this way it is made sure that there
are no excessive currents of the offset is set incorrectly.
• Turn motor shaft manually. Check the sense of rotation of the encoder via the
actual value of parameter
wise rotation of the motor shaft, positive values are displayed for the actual
frequency value. If the displayed sense of rotation does not correspond to the
actual sense of rotation, change the connections of tracks A and B.
The
Offset
pairs. The possible range is between 0° and max. Offset.
Max. Offset
If the adjusted value is changed by the max. Offset, this does not affect the
Forming Voltage
• Adjust a low reference speed value (approx. 10% lower than the
Switch-Off limit
and S2IND (start clock-wise operation) in order to accelerate the motor.
• If an overcurrent is detected or a fault message is issued due to an overload,
the guided commissioning (setup) will start first. Confirm the machined data
values. After completion of the guided commissioning, adjust the parameter
Current Limit
during the guided commissioning.
Depending on the behavior of the motor after start, carry out the following steps:
Motor does not turn, or the motor shaft only turns to a new position and
−
stops again:
• Check if parameter
If these values are adjusted correctly, take the following measures complying with the
safety instructions.
Warning!
• Before electrical installation work, de-energize the frequency inverter and take
appropriate precautions to make sure it is not re-energized unintentionally.
Make sure that the frequency inverter is discharged.
• Exchange two motor phases (e.g. U and V) at the frequency inverter terminals
because the senses of rotation of the motor and the encoder do not corres-
pond to each other.
• Switch on the power supply again.
• As described above, adjust a low speed reference value and start the motor.
If the motor does not start despite the phase exchange:
• Increase the parameter value for
motor pole pairs.
If the motor still does not turn, exchange the two motor phases (e.g. U and V) again.
03/12
Current limit
1188 must be between 0° and 360°, divided by the number of motor pole
°
360
=
Motor pole pairs
235 .
417 ), and enable the frequency inverter via controller release
728 to a low value again because this value was overwritten
No. of Pole Pairs
When the frequency inverter is disconnected from power supply, the
mains, DC-link voltage and motor terminals may still be live for some
time. Wait for some minutes until the DC link capacitors have discharged
before starting to work at the unit.
EM-ABS-01 for ACU
728 of the speed controller to a lower current val-
219 . In the case of a clock-
Encoder 2 Frequency
373 has been set correctly for the motor.
1188 by 90°, divided by the no. of
Offset
Flux-
Frequency
103