Bits/Turn - BONFIGLIOLI Active Cube User Manual

− The motor turns and accelerates until it reaches the
limit
• Check the encoder lines and check the encoder connection contacts.
• In the case of fault message "Overfrequency" F1100: increase the parameter
value for
− If the motor turns at the adjusted speed and in the right direction, carry
out the fine adjustment of the offset:
• Adjust the parameter value for
Flux-Forming Voltage
− In case the flux-forming voltage deviates from 0 significantly, adjust the offset
in bigger steps.
− In the case of a positive flux-forming voltage, increase the offset.
In the case of a negative flux-forming voltage, reduce the offset.
−
• Adjust parameters
the required values.
• Repeat the fine adjustment of the offset at 50 % of the rated frequency.
This completes the offset adjustment.
• Start the guided commissioning. This is required for optimum current control.
Attention! Some absolute value encoder types enable to "zero" or change the posi-

8.4.7 Bits/Turn

If an absolute value encoder is used (EnDat 2.1, Hiperface, SSI), the number of
Bits/Turn (referred to encoder) must be configured in the frequency inverter. In the
case of Hiperface and SSI encoders, the value specified in the data sheet of the encod-
er used must be entered in parameter
In the case of EnDat 2.1, the value is read automatically from the EnDat encoder and
used internally. Parameter
coders.
104
417:
1188 by 180°, divided by the no. of motor pole pairs.
Offset
235 is roughly 0.
Frequency Switch-Off limit
tion transmitted by the encoder. Do not use this function, as this will
change the commutation angle for
is not guaranteed.
Bits/Turn
EM-ABS-01 for ACU
1188 in small steps (e.g. 2.5°) until the
Offset
417 and
1188 and correct speed control
Offset
1271 .
Bits/Turn
1271 is not evaluated in the case of EnDat en-
Frequency Switch-Off
728 to
Current Limit
03/12