Lenze DDS Target 9300 Servo PLC V8.x - Manual (Page 45)

9300 Servo PLC
System blocks
2.8 DFIN_IO_DigitalFrequency (node number 21)
2−39
L
9300 Servo PLC EN 5.1
Transmission function
DFIN_nIn_v + f [Hz] @
60
Increments from C0425
@ 2
14
15000
Example:
·
Input frequency = 200 kHz
·
C0425 = 3, this corresponds to 2048 increments/rev.
DFIN_nIn_v [rpm]
+ 200000 Hz @ 60
2048
+ 5859 rpm
Signal adaptation
Finer resolutions can be achieved by adding a downstream FB (e.g. L_CONV from the
LenzeDrive.lib):
DF_IN
DFIN_bEncFaultCable_b
C0426
C0427
X9
C0425
4V
(X9/8)
1
0
E5
TP/MP
-Ctrl
C0428 C0429
MONIT_SD3
DFIN_nIn_v
DFIN_bTPReceived_b
DFIN_dnIncLastScan_p
NNumerator
Ndenominator
nIn_a nOut_a
L_CONV
Fig. 2−16 Digital frequency input (DFIN_IO_DigitalFrequency) with downstream FB L_CONV for scaling
nOut_a
+ f [Hz] @
60
Increments from C0425
@ nNumerator
nDenominator
@ 2
14
15000