Motor/Encoder Feed Constant - Lenze i950 Commissioning Manual

6.1.5

Motor/encoder feed constant

The feed constant corresponds to the machine motion for one revolution of the gearbox out-
put shaft.
When a turntable is used, the feed constant is = 360°/revolution when defined as an angle.
The feed constant of a conveyor drive results from the circumference of the drive roll.
Calculation of the feed constant
Symbol
F
C
d
n
Example:
The feed constant of a spindle drive (linear axis) results from the leadscrew pitch. The feed
constant indicates the distance travelled by the slide in one revolution (in the following exam-
ple 5,023 mm).
Fig. 2: Feed constant of a spindle drive
h Leadscrew pitch from the technical data of the linear axis
The kinematic parameters for the second encoder can be used to define how an imported
encoder position or encoder speed should be converted into machine units.
Parameter
Address Name / setting range / [default setting]
0x500A:032 Feed constant
0.0001 ... [360.0000] ... 214748.3647
• Setting can only be changed if the inverter is inhibi-
ted.
0x500B:032 Feed constant
0.0001 ... [360.0000] ... 214748.3647
• Setting can only be changed if the inverter is inhibi-
ted.
Technology application (TA) basic settings
M
d=200 mm
=
V
K
Description
Feed constant
Diameter
Revolution
M
h = 5.023 mm
Info
Motor/encoder feed constant
p*
d
n
Kinematic settings
49