Ssi: Sampling Interval; Gear Factor Speed Sensor 2 - BONFIGLIOLI Active Cube User Manual

8.4.10

SSI: Sampling interval

SSI frequency encoders often use a sampling rate in the millisecond range. In order for
the evaluation in the device to work correctly, the sampling rate of the SSI absolute
value encoder must be set up. If the sampling rate of the encoder cannot be adjusted,
use the next higher, available setting. The parameter value is adjusted as a multiplier
of 125 us.
Note:
No.
1268 SSI: Sampling interval
Attention: For a good positioning behavior, the sampling rate is to be less than 1
8.4.11

Gear factor speed sensor 2

If the speed sensor is coupled to the motor via one or more gears, the transmission
ratio between the motor and the encoder must be configured via
Numerator
No.
513 EC2 Gear Factor Numerator
514 EC2 Gear Factor Denominator
Revolution
Revolution
Note:
Note:
108
Not all steps from 0 to 240 are available. The selection list limits the
available options to reasonable settings.
Parameters
Description
ms.
In the case of higher sampling rates, unwanted high system vibration or
even machine damage may occur, if the speed and position controller are
configured improperly.
In the case of high sampling rates (> 2 ms), reduce the dynamics of the
system via the speed controller and the position controller.
Positioning accuracy will be lower in the case of high sampling rates. For
precise applications, use encoders with low sampling rates.
513 and
EC2 Gear Factor Denominator
Parameters
Description
s of the Motor shaft
s of the EC2 encoder shaft
Gear factors
EC2 Gear Factor Numerator
514 must always be referred to the motor.
Denominator
In the case of linear encoders, this value must be set according to chap-
ter 6.6.
EM-ABS-01 for ACU
Settings
Min. Max.
0
514 .
Settings
Min.
-300.00 300.00
0.01 300.00
EC 2 Gear Factor Numerator
=
EC 2 Gear Factor Denominato
513 and
Factory set-
ting
240 0
EC2 Gear Factor
Max. Factory set-
ting
1.00
1.00
513
514
r
EC2 Gear Factor
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