Extended Encoder Evaluation - Siemens Sinamics S120 Function Manual

Communication
10.1 Communication according to PROFIdrive
Function diagrams (see SINAMICS S120/S150 List Manual)
● 4720 Encoder interface, receive signals, encoders n
● 4730 Encoder interface, send signals, encoders n
● 4735 Find reference mark with equivalent zero mark, encoders n
● 4740 Measuring probe evaluation, measured value memory, encoders n
Overview of important parameters (see SINAMICS S120/S150 List Manual)
Adjustable parameter drive, CU_S parameter is marked
● p0418[0...15] Fine resolution Gx_XIST1
● p0419[0...15] Fine resolution Gx_XIST2
● p0480[0...2] CI: Signal source for encoder control word Gn_STW
● p0488[0...2] Measuring probe 1 input terminal
● p0489[0...2] Measuring probe 2 input terminal
● p0490 Invert measuring probe (CU_S)
Display parameters drive
● r0481[0...2] CO: Encoder status word Gn_ZSW
● r0482[0...2] CO: Encoder position actual value Gn_XIST1
● r0483[0...2] CO: Encoder position actual value Gn_XIST2
● r0487[0...2] CO: Diagnostic encoder control word Gn_STW
● r0979[0...30] PROFIdrive encoder format
10.1.2.6

Extended encoder evaluation

The standard parameter r0979[0...30] describes the assignment from the telegram
configuration view.
Index 1 describes the encoder type. Subindex 1 provides further properties of the encoder:
Table 10- 40 r0979 subindex 1
562
Bit Signal Description
0 =0 Rotating encoder
=1 Linear encoder
1 =0 No fine resolution possible
=1 Fine resolution possible
2 =0 64 bit not possible
=1 Reserved
3 - 28 In accordance with the PROFIdrive profile definition
29 =0 Encoder switchable
=1 Encoder not switchable
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Drive functions