SD710 Series Servo Drive User Manual Chapter 5 Commissioning and Operation
15
Figure 5.15 Position Control Block Diagram
5.2.1 Pulse Command Source Selection
For position control, the position command source is set by function code Pn200. Please set the corresponding
parameters according to the actual situation.
External low
speed pulse
Pn 200 = 0
Pn 200 = 3
Position comm and
source in
position mode
Pn 200 = 1
Internal
position command
External high
speed pulse
Related Function Code
Function
code
Parameter name
Range
Default
value
Unit
Pn200.X
Pulse command source selection
0: External low-speed pulse
sequence
1: External high-speed pulse
sequence
2: Reserved
3: Internal position command
0
-
5.2.2 Pulse Command Filter Selection
Select the appropriate command pulse filter according to the frequency of the highest pulse during operation, which can
be set by the parameter Pn202.Y. Improper selection may cause the servo unit to receive pulses abnormally.
When the pulse frequency is momentarily too high and the pulse width is less than the filter width setting, the pulse will
be filtered out as noise. Therefore, the filter width setting must be less than the actual pulse width. It is recommended that
the actual pulse width be 4 times or more than the filter width setting.
Example
: A filter width duration of less than 150ns will be treated as an interference signal.
150ns
150ns
<150ns
<150ns
When the bandwidth of this pulse is
less than 150ns, it will be regarded
as low level, so two input pulses
are regarded as one pulse
When the bandwidth of this pulse is
less than 150ns, it will be regarded
as low level, so two input pulses
are regarded as one pulse
Pulse Inp ut
Filtered signal
Filtered signal
Pulse Inp ut
>150ns
>150ns
When the width of high and low duty of the
pulse is greater than 150ns, it can ensure that
the pulse command is not filtered out
Related function code
