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
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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
Lenze Selection
[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 elctric ally
buffered.
0DFOUT_nOut_vas%
1DFOUT_nOut_vasrpm
2 Incremental encoder emulation + 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 di gital frequency o utput 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 di gital frequency o utput 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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