Siemens SINAMICS S120 Function Manual page 448

Function modules
9.7 Position control
The following interconnections are automatically established after the assignment has been
made.
● p0480[0] (G1_STW) = encoder control word r2520[0]
● p0480[1] (G2_STW) = encoder control word r2520[1]
● p0480[2] (G3_STW) = encoder control word r2520[2]
Figure 9-6
Features
The function is characterized by the following features:
● Correction value (p2512, p2513)
● Setting value (p2514, p2515)
● Position offset (p2516)
● Actual position value (r2521)
● Actual velocity value (r2522)
● Motor revolutions (p2504)
● Load revolutions (p2505)
● Spindle pitch (p2506)
● Position tracking (p2720ff)
Rotary encoder
The link between the physical variables and the neutral length unit LU is established via
parameter p2506 (LU per load revolution) for rotary encoders. Parameter p2506 mirrors,
together with p2504, p2505, the interrelationship between encoder increments and the neutral
length unit LU.
446
Actual position value sensing with rotary encoders
Function Manual, 06/2019, 6SL3097-5AB00-0BP2
Drive functions