Lenze i950

6.1.6 Motor/encoder travel ranges and cycle length
Linearly limited travel range
•
The tr
avel range in the
posive and negave direcon is limited mechanically and on the
soware side by limit switches.
•
Aer travelling a dened distance, the drive returns in the opposite direcon.
M
Fig. 3: Spindle drive (linear axis)
t
❶
❷
❸
ϕ
Fig. 4: Posion
representaon
1 Seng of the home posion
2 Posion in the machine measuring
system
3 Posion in the motor measuring sys-
tem
Unlimited travel range (Modulo)
•
The measuring s
ystem is repeated.
•
When the set cycle length is exceeded, a dened
overow takes place.
•
The cycle length corresponds to one revoluon or tool distance of a turntable (end posi-
on = starng posion).
•
Soware limit switches are not acve.
•
Ab
solute targets can be approached by exceeding the measuring system limit.
M
❶
Fig. 5: Turntable
1 Cycle length
(illustraon = 60°)
Technology applicaon (TA) basic sengs
Kinemac sengs
Motor/encoder travel ranges and cycle length
50