Lenze 9300 - Digital Frequency Input (DFIN)

Function block library
7-107
 SHB9300CRV EN 2.0
7.6.31 Digital frequency input (DFIN)
Purpose
Conversion and standardization of a power pulse current at the digital frequency input X9 into a
speed and phase setpoint. Thetransmission of a digital frequency is very precise (without offset and
gain errors).
C0425
DFIN
DFIN-OUT
C0426
X9
C0427
Fig. 7-73 Digital frequency input (DFIN)
Signal
Source Note
Name Type DIS DIS format CFG List
DFIN-OUT phd C0426 dec [rpm] - -
Function
l The input X9 is dimensioned for signals with TTL level (see chapter 4.2.8 digital frequency
input X9).
l Adapt the controller to the connected encoder or controller, in the event of pulse train
cascade or pulse train bus under C0425.
l The input of a zero track is optional.
l The evaluation of the following input signals is possible under C0427:
C0427 = 0
C0427 = 0
A
A
B
B
Z
Z
Fig. 7-74 Signal sequence with phase shift (CW rotation)
l CW rotation
–TrackAisleadingtrackBby90 (positive value at DFIN-OUT).
l CCW rotation
– Track A is lagging behind track B by 90 (negative value at DFIN-OUT).
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