9300 Servo PLC
System blocks
2.9
DFOUT_IO_DigitalFrequency
2-33
L
ServoPLC EN 2.0
Encoder constant configuration
•
The constant for the encoder emulation can be set under C0030:
Code
LCD
Possible settings
Info
o
Lenze
Selection
o
C0030 DFOUT const
3
Encoder constant
0
256 increments per revolution
1
512 increments per revolution
2
1024 increments per revolution
3
2048 increments per revolution
4
4096 increments per revolution
5
8192 increments per revolution
6
16384 increments per revolution
Configuration of the digital frequency output signal
•
Use C0540 to configure the type of the digital frequency output signal:
Code
LCD
Possible settings
Info
o
Lenze
Selection
o
[C0540] Function
2
Digital frequency output: Function
•
X9 is inhibited, if 0, 1, or 2 had
been selected.
•
DFOUT_nIn_v = 0, if 4 or 5 had
been selected.
•
The input signals are elctrically
buffered.
0
DFOUT_nOut_v as %
1
DFOUT_nOut_v as rpm
2
Incremental encoder emu zero pulse
4
X9 is output on X10
5
X8 is output on X10
C0540 = 0
Output of an analog signal
Function
The input signal
DFOUT_nOut_v
is interpreted as analog signal [%]
and output as frequency signal at the digital frequency output X10.
Normalisation
100 %
≡
(INT)16384
≡
C0011 (n
max)
Transmission function
f [Hz]
=
DFOUT_nOut_v [%]
⋅
incr.from C0030
100
⋅
C0011 (n
max
)
60
DFOUT_nIn_v
=
f [Hz]
⋅
60
incr. from C0030
⋅
2
14
15000
Example
•
DFOUT_nOut_v
= 50 %
•
C0030 = 3 corresponds to 2048 increments/rev.
•
C0011 = 3000 rpm
f [Hz]
=
50 %
⋅
2048
100
⋅
3000
60
=
51200 Hz
C0540 = 1
Output of a speed signal
Function
The input signal
DFOUT_nOut_v
is interpreted as speed signal [rpm]
and output as frequency signal at the digital frequency output X10.
Normalisation
15000 rpm
≡
(INT)16384
Transmission function
f [Hz]
=
DFOUT_nOut_v [rpm]
⋅
incr. from C0030
60
Example
•
DFOUT_nOut_v
= 3000 rpm
•
C0030 = 3 corresponds to 2048 increments/rev.
f [Hz]
=
3000 rpm
⋅
2048
60
=
102400 Hz
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