Function block library
7-92
SHB9300CRV EN 2.0
7.6.24 Conversion (CONVPHPHD)
Two function blocks are available (CONVPHPHD1)
Purpose
A phase change is converted into a speed (digital frequency).
C 1451/1
CONVPHPHD1
CONVPHPHD1-IN
CONVPHPHD1-OUT
C 1453
C 1452
C 1450/1
CONVPHPHD1-FAIL
x
y
Signal Source
Note
Name Type DIS DIS format CFG List
CONVPHPHD1-IN ph 1451/1 dec [inc] 1450/1 3 Phase input
CONVPHPHD1-FAIL d - - - HIGH = Resulting speed > 30000 rpm
CONVPHPHD1-OUT phd - - - Output in rpm
Function
A phase change at input CONVPHPHD1-IN is converted into a speed.
l
Reference: 65536 inc = 1 motor rev.
l
The speed can be adapted through the codes C1452 (numerator) and C1453 (denominator).
l
The output is limited to n = 30000 rpm.
Status signals
CONVPHPHD1-FAIL = HIGH is set when the speed limit n = 30000 rpm is reached. Phase errors
can occur in the following function blocks.
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