BONFIGLIOLI Active Cube User Manual

03/12 EM-ABS-01 for ACU 105
Parameters Settings
No. Description Min. Max. Factory set-
ting
1271 Bits/Turn 0 bits/t 32 bits/t 13 bits/t
Note: The internal resolution of one motor revolution is 16 bit. The resolution o
f
B
its/Turn 1271 is converted to the internal resolution if the encoder is
used as a motor encoder.
In the case of application encoders, the reference between motor and
application encoder is parameterized through the gear factors
E
C2 Gea
r
F
actor Numerato
r
513 and EC2 Gear Factor Denominator 514.
Note: In the case of linear encoders, this value must be set according to chap-
ter
6.6.
8.4.8 Bits Multiturn
If a multiturn absolute value encoder is used (EnDat 2.1, Hiperface, SSI), the numbe
r
of Bits/Turn (referred to encoder) for the multiturn resolution must be confi
g
ured in the
frequency inverter. In the case of Hiperface and SSI encoders, the value specified in
the data sheet of the encoder used must be entered in parameter
Bits Multiturn 1272.
In the case of EnDat 2.1, the value is read automatically from the EnDat encoder and
used internally. Parameter
Bits Multiturn 1272 is not evaluated in the case of EnDa
t
encoders.
Parameters Settings
No. Description Min. Max. Factory set-
ting
1272 Bits Multiturn 0 Bit 32 Bit 13 Bit
Note: The position of the motor is resolved at a total of 31 bits + si
g
n bit. The
lower 16 bits are used for the motor position an
g
le the hi
g
her 16 bits are
used for the number of motor revolutions and the sign.
If the absolute value encoder is used as a motor encoder, the followin
g
shall apply:
If the number of
Bits Multiturn 1272 is smaller than 16 bits, the missin
g
bits are filled internally in the frequency inverter. These additional bits
are used for overflow saving of the revolutions so that 2
16
revolutions
(including one sign bit) can be managed safe against zero voltage.
If the number of
Bits Multiturn 1272 is greater than 16 bits, the accura-
cy of the encoder exceeds the accuracy of the inherent resolution of the
frequency inverter.
In the case of application encoders, the reference between motor and
application encoder is parameterized through the gear factors
E
C2 Gea
r
F
actor Numerato
r
513 and EC2 Gear Factor Denominator 514.
Note: In the case of linear encoders, this value must be set according to chap-
ter
6.6.

BONFIGLIOLI Active Cube Specifications

General

Brand	BONFIGLIOLI
Model	Active Cube
Category	Inverter
Language	English