KEYENCE Visual KV Series - Manual (Page 280)

5.2 Parameter Setting and Operating Procedures
3-256
Visual KV
Series
5
Chapter 5 Positioning Control
Operating frequency (Hz) (DM1481)
Set the frequency (speed) of the motor during operation in positioning control.
At the set frequency, the Visual KV Series will output clock pulses.
Note: If the startup frequency is the same as the operating frequency, the timing
chart becomes as shown below.
In this case, the acceleration/deceleration time is ignored.
Acceleration/deceleration time (ms) (DM1482)
Set the time to accelerate from the starting frequency to the operating frequency
after operation is started.
When operation is stopped, the deceleration time is equivalent to the acceleration
time.
In the set time, the Visual KV Series varies the clock pulse frequency from the
startup frequency to the operating frequency (in the case of acceleration time).
The clock pulse frequency change cycle within the acceleration time is fixed to 5 ms.
Number of output pulses (DM1484 and DM1485)
Set the angle of rotation (movement quantity) in positioning control as the number of
pulses. The Visual KV Series outputs as many clock pulses as the set value.
If the number of output pulses is larger than 65,535, divide it into the upper 16-bit
value and the lower 16-bit value using the following equation.
The minimum value is 2, and maximum value is 4,294,967,295.
(Number of output pulses) ÷ 65,536 = A (answer) . . . B (remainder)
A = Number of output pulses (upper 16-bit) ➞ DM1485
B = Number of output pulses (upper 16-bit) ➞ DM1484
Note 1: When the set number of pulses is too small and the target value cannot be
achieved, triangular control is performed as shown below.
Note 2: The current value of pulse output cannot be obtained.
0
Operating (startup)
frequency
5ms
Operating frequency
Startup frequency
Acceleration/deceleration time
0
Operating frequency
Startup frequency
KVNKA Chap 05.p65 08.3.11, 0:09 PM 256