Lenze 8400 - Manual (Page 267)

Lenze · 8400 protec HighLine · Reference manual · DMS 3.0 EN · 03/2013 · TD05
267
5 Motor control (MCTRL)
5.11 Encoder/feedback system
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Short overview of the relevant parameters:

How to parameterise the SSI encoder:
1. As encoder type ( C00422 ), select "4: Absolute value encoder (SSI)".
2. Set the bit rate ( C00427 ) for SSI communication.
• For SSI protocols, the permissible baud rate is reduced if the cable length is increased. A
safe bit rate must be set, depending on the length of the used encoder cable and the
electromagnetic interference level.
3. Go to C00426/1...6 and set the distribution of the SSI data word according to the SSI
encoder used (see the following subchapter).
4. If an SSI encoder with Gray coding is used:
Add the selection "1: Gray code" for a data conversion from Gray to binary code in C00428 .
• In the Lenze setting, "0: Binary code", conversion is not performed, i.e. an SSI encoder
with binary coding is expected.
Parameter Info Lenze setting
Value Unit
General
C00428 SSI encoder: Coding 0: Binary code
C00427 SSI encoder: Bit rate 1: 100 kbps
Structure of the data word
C00426/1 Data word length 25
C00426/2 Bits Singleturn 13
C00426/3 Start bit singleturn 0
C00426/4 Bits multiturn 12
C00426/5 Start bit multiturn 13