Siemens SINAMICS G120D - Application Examples; Setting an Absolute Encoder; A.5 Application Examples

Appendix
A.5 Application Examples
Converter with control units CU250D-2
372 Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
A.5
Application Examples
A.5.1
Setting an absolute encoder
Encoder data
In the following example, the inverter must evaluate an SSI encoder. The encoder data sheet
also includes the following encoder data:
Table A- 12 Excerpt from the data sheet of the absolute encoder
Feature
Value
Configuring an
encoder
Adapting the
encoder data
Parameter
Principle of operation Multiturn
①
③
p0404.2 = 1
Operating voltage 10 V … 30 V
④
p0404.21 = 1
Clock frequency of
the SSI interface
100 kHz … 1 MHz
⑤
p0427 = 100
Digital resolution 25 bit (8192 steps x
4096 revolutions)
⑥
p0423 = 8192
p0421 = 4096
SSI telegram 25 bit, without parity
⑦
p0447 = 25
Code type Gray
⑧
p429.0 = 0
① … ⑧: See the following descriptions