6. Setting Parameters
66
Festo P.BE-CMMP-CO-SW-EN 0708NH
Calculation of the
acceleration_factor
consists of two parts: a conversion factor from
internal length units into
position_units
, and a conversion factor from internal time units
squared into user-defined time units squared (e.g. from seconds
2
into minutes
2
). The first
part corresponds to the calculation of the
position_factor
; for the second part, an
additional factor is added:
time_factor_a
Ratio between internal times units squared and unser-defined time
unit squared
(e.g.
1
min
2
= 1
min 1 min = 60 s 1 min =
60
/
256
256 min s
)
gear_ratio
Gear ratio between revolutions at the drive-in (R
IN
) and revolutions
at the drive-out (R
OUT
)
feed_constant
Ratio between revolutions at the drive-out (R
OUT
) and movement in
position_units
(e.g. 1 R = 360°)
Calculation of the
acceleration_factor
uses the following equation:
acceleration_factor
=
numerator
=
gear_ratio x time_factor_a
divisor
feed_constant
The
acceleration_factor
is also written into the motor controller separated by numerator
and denominator, so it may have to be expanded.
Summary of Contents for CMMP Series
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