Siemens SINAMICS S120 Function Manual page 355

Example: Gear ratio 1:3 (motor revolutions p0433 to encoder revolutions p0432), absolute
encoder can count eight encoder revolutions (p0421 = 8).
Figure 7-15 Drive with odd-numbered gearboxes without position tracking
In this case, for each encoder overflow, there is a load-side offset of 1/3 of a load revolution,
after three encoder overflows, the motor and load zero position coincide again. The position
of the load can no longer be clearly reproduced after one encoder overflow.
If position tracking is activated via p0411.0 = 1, the gear ratio (p0433/p0432) is calculated
with the encoder actual position value (r0483).
Figure 7-16
Features
● Configuration via p0411
● Virtual multiturn via p0412
● Tolerance window for monitoring the position at power ON p0413
● Input of the measuring gear via p0432 and p0433
● Display via r0483
Drive functions
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Odd-numbered gears with position tracking (p0412 = 8)
Basic functions
7.21 Position tracking
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