BONFIGLIOLI Vectron ACTIVE CUBE - Functions of the Motion Control Interface (MCI)

The Motion Control Interface is a defined interface of the ACU devices for position con-
trol. This interface is typically used in combination with a field bus such as PROFINET.
The source “125-Abs. current value” uses the device-internal standardization, see
Chapter 8.3.1 “Data types of OUT/IN objects”.
10.2 Functions of the Motion Control Interface (MCI)
Via the Motion Control Interface, numerous positioning functions can be addressed by
a PLC directly.
10.2.1 Reference system
In many modes, the Motion Control Interface uses user units [u]. These user units [u]
result from the conversion of the gear factor parameters 1115, 1116, 1117 and No.
of pole pairs 373.
Conversion between “user units” [u] and frequencies [Hz]
[ ]
[ ]
11171115
1116373
U
u
.
Hz
s
u
v f
srevolution shaft Motor:Box earConstant Feed
srevolution shaftDriving :Box Gear
G
pairspoleofNo
⋅
⋅
⋅






=
[ ]
[ ]
⋅⋅
⋅
⋅






=
1116373
11171115
.
U
u
Hzf
s
u
v
srevolution shaftDriving :Box Gear
srevolution shaft Motor:Box earConstant Feed
pairspoleofNo
G
The same formulas can be used for converting acceleration values from a[Hz/s] to
a[u/s²] and vice versa. In the formulas, replace speeds f[Hz] and v[u/s] by acceler
a-
tions a[Hz/s] and a[u/s²].
For more details about the reference system, refer to the “Positioning” application
manual.
54 CM-PROFINET 10/13