SD710 Series Servo Drive User Manual Chapter 5 Commissioning and Operation
24
Pn072X
Motor-side encoder crossover
output polarity
0: Positive polarity output
1: Negative polarity output
0
-
a) Number of frequency division pulses
The number of pulses per revolution from the encoder is processed inside the servo unit, divided into frequencies and
output to the set value of Pn070.
The number of divided pulses output from the encoder should be set according to the system specifications of the machine
and the upper unit.
Example.
For Pn070= 16 (16 pulses per revolution), an example of the output of the encoder divided pulse output A phase (PAO)
signal and the encoder divided pulse output B phase (PBO) signal is shown in the figure below.
PAO
PBO
1
圈
Pn070=16
Figure 5.20 Timing diagram of pulse division output
b) Frequency division output Z pulse width
Z pulse is a pulse sent by the encoder following the motor shaft rotation for one week, which is used to determine the
zero position or mark position. The servo driver provides Z pulse output width adjustable function, which is used to widen
the Z signal of the encoder to meet the needs of different upper units, so that the user becomes more flexible in selecting
upper motion control devices.
Figure 5.21 Timing diagram of pulse division output
Example
: As shown in Figure 5.21, set Pn071 to be set to 4 and the Z pulse width to be 4 times the quadrature AB pulse
width.
The user can perform Z pulse width widening processing in the range of 1 to 31.
c) Crossover output direction
Counterclockwise rotation (CCW)
Clockwise rotation (CW)
A
B
Z
