Lenze 9325 - Conversion - Stretching Factor (CONVPHD); Encoder Adaptation; Interconnection of Function Blocks

Function block library
7-89
 SHB9300CRV EN 2.0
7.6.22 Conversion - stretching factor (CONVPHD)
One function block (CONVPHD1) is available.
Purpose
l Exact adaptation of the incrmental encoder
l CONVPHD1 for the adjustment of the stretching factor via free configurable inputs
C 1489/1
CONVPHD1-IN
C 1488/1
C 1480
Y
CONVPHD1-OUT
X
CONVPHD1
C 1487/1
CONVPHD1-NOM
C 1486/1
C 1487/2
CONVPHD1-DEN
C 1486/2
Signal Source
Note
Name Type DIS/selection DIS format CFG List
N
o
t
e
CONVPHD1-DEN ph 1487/2 dec [inc] 1486/2 3 Stretching factor denominator, input limited to
+1 to +200000000
CONVPHD1-IN phd 1489/1 dec [inc] 1488/1 4 Input in rpm
CONVPHD1-NOM ph 1487/1 dec [inc] 1486/1 3 Stretching factor numerator, input limited to
 1to  200000000
CONVPHD1-OUT phd - - - Output in rpm
Function
l Interconnection of function blocks
l Encoder settings in single unit steps
l Set stretching factor through 6 decades
7.6.22.1 Interconnection of function blocks
The function block is connected directly behing the digital frequency input DFIN.
Stop!
The DFIN code C0425 must be set to selection 6 to evaluate the encoder signals correctly.
7.6.22.2 Encoder adaptation
The encoder is adapted to the controller using the freely adjustable encoder constants
l C1480 in CONVPHD1
Theadaptation inthe functionblock canbe carried out insingleunitssteps 1,2, 3,4... 32767(instead
of the steps of 2
0
,2
1
,2
3
etc.)possiblewithDFIN.
7.6.22.3 Set stretching factor through 6 decades
The function blocks can be used for fine adjustment of the stretching factor (6 decades).
The stretching factor is set:
l CONVPHD1:
via freely connectable inputs
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