6.9 Internal Set Speed Control
6.9.4 Changing Internal Set Speeds with Input Signals
6-56
An operating example of speed control with the internal set speeds is given below. This exam-
ple combines speed control with the internal set speeds with the soft start function. The shock
that results from speed changes is reduced by using the soft start function.
-SPEED1
Motor speed
+SPEED3
+SPEED2
+SPEED1
-SPEED2
-SPEED3
0
Speed 3
The acceleration/deceleration rates
are set in Pn305 and Pn306.
Stopped
Stopped
Speed 1
Speed 2
Speed 3
/SPD-A signal
/SPD-B signal
OFF
ON ON OFF OFF ON ON OFFOFF
OFF
ON
OFF OFF OFF OFF ON
ON ON
ON
ON OFF OFF ON ON OFF OFF
/SPD-D signal
Speed 1
Stopped
Speed 2
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