Control functions
7.3 Pulse train input position control (PTI)
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 04/2019, A5E36037884-007
225
7.3.6
Electronic gear ratio
Encoder specifications
The encoder specifications are shown as follows:
Type
Resolution
Output pulses per revolution
A
Incremental encoder
2500 ppr
10000
M
Absolute encoder
21-bit single-turn
2097152
L
Absolute encoder
20-bit + 12-bit multi-turn
1048576
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 traveling distance of load shaft according to one setpoint pulse is called a
length unit (LU); for example, one pulse results in 1 µm movement.
