Function library, Function blocks – Lenze EVS9332xK User Manual
Page 170

Function library
Function blocks
3.2.41
Digital frequency input (DFIN)
3−142
l
EDSVS9332K−EXT EN 4.0
C0427 = 1
A
A
B
B
Z
Z
Fig. 3−106
Control of direction of rotation via track B
CW rotation
Track A transmits the speed
Track B = LOW (positive value at DFIN−OUT)
CCW rotation
Track A transmits the speed
Track B = HIGH (negative value at DFIN−OUT)
C0427 = 2
A
A
B
B
Z
Z
Fig. 3−107
Control of speed and direction of rotation via track A or track B
CW rotation
Track A transmits the speed and direction of rotation (positive value at DFIN−OUT)
Track B = LOW
CCW rotation
Track B transmits the speed and direction of rotation (negative value at DFIN−OUT)
Track A = LOW
Transfer function
DFIN−OUT [rpm]
+ f [Hz] @
60
Number of increments from C0425
Example:
Input frequency = 200 kHz
C0425 = 3 (
¢ a number of increments of 2048 inc./rev.)
DFIN−OUT [rpm]
+ 200000 Hz @ 60
2048
+ 5859 rpm