Lenze 9300 Servo PLC - Page 46

9300 Servo PLC
System blocks
2.9 Digital master frequency input (DF_IN_DigitalFrequency)
2-34

9300ServoPLC EN 1.4
Transmission function
DFIN_nIn_v  f[Hz]ô
60
no. of incr._from C0425
ô
2
14
15000
Example:
Input frequency = 200 kHz
C0425 = 3 (corresponds to 2048 increments/turn)
Solution:
DFIN_nIn_v [rpm]  200000 Hz ô
60
2048
 5859 rpm
Signal adaptation
Finer resolutions can be achieved by adding a following FB (e.g. L_CONV).
Example:
nOut_a  f[Hz]ô
60
no. of incr._from C0425
ô
nNumerator
nDenominator
ô
2
14
15000
C 0425
DF_IN
D FIN _nIn_v
C 0426
X9
C 0427
TP/M P
-C trl
C 0429
C 0428
0
1
MP
E5
D FIN _bTPR eceived_b
D FIN _dnIncLastScan_p
MONIT-SD3
4V
D FIN _bEncFaultC able_b
(X9/8)
nIn_a
nO ut_a
L_CONV
nN um erator
nD enom inator
L_CONV3
Abb. 2-21 Digital frequency input (DF_IN) with following FB for normalization
Stop!
If C0540 = 0, 1, 2 (signal at X10, see SB DFOUT)and feedback system C0025 > 10 you must not use
the digital frequency input X9.
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