Siemens SINAMICS V90 Operating Instructions Manual page 171

A
M
Electronic gear
With the function of electronic gear, you can define the motor revolutions according to the
number of setpoint pulses, and sequentially define the distance of mechanical movement.
The minimum travelling distance of load shaft according to one setpoint pulse is called a
length unit (LU); for example, one pulse results in 1 µm movement.
Benefits of electronic gear (example):
Move the workpiece for 10 mm:
Required number of setpoint pulses:
2500 ppr × 4 × (10 mm/6 mm) = 16666
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 09/2016, A5E36037884-002
Type
Incremental encoder
Absolute encoder
L Absolute encoder
Without electronic gear
7.3 Pulse train input position control (PTI)
Resolution
2500 ppr
21-bit single-turn
20-bit + 12-bit multi-turn
With electronic gear
Required number of setpoint pulses:
(10 mm × 1000) / 1 LU = 10000
Control functions
171