Basic description of PCL series
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[Operation speed override]
By changing the speed settings during operation, you can change the speed and the acceleration rate.
(1) When the operation speed is changed to a lower speed than the preset while accelerating, and if the new
speed < current speed, the motor will use S-curve deceleration to reach the new speed.
(2) (3) When the operation speed is changed after acceleration is complete, the motor will use S-curve
deceleration to reach the new speed.
(4) When a higher operation speed is written during acceleration, the motor will accelerate to the preset speed
without changing the S-curve pattern. Then it will accelerate again to the new speed.
(5) When a lower operation speed is written during acceleration, and if the new speed > speed when the change
was written, the motor will accelerate to the new speed without changing the S-curve characteristics.
POINT 5. Smooth the speed curve by using the FH correction function
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What is the FH correction function?
･･･
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During a positioning operation, if the feed amount
is very small, this function automatically lowers
the maximum speed and avoids triangle driving.
This smoothes the speed curve.
POINT 6. A variety of counters and comparators are built in
Beside a dedicated positioning counter, the PCL6025/6045B have four counter circuits per axis.
Counter 1 is exclusively for outputting pulses. The input for Counters 2 to 4 can be selected with a CPU.
All of the counters can latch and reset their counter values from a signal input, and respond to operating
conditions and commands from a CPU so that you can use them in a variety of applications.
[FH correction function]
Figure 10
sec
pps
Automatic correction of the maximum speed for small
feed amounts.
Time
Spee
4)
5)
1)
2)
3)
Figure 9
Examples of speed pattern changes by overwriting the
speed during S-curve acceleration / deceleration
