Rtelligent ECT Series - Page 36

ECT Series User Manual
34
The above figure shows the corresponding relationship between the motor running status,
actual speed, target speed and control word.
Target speed
6040h stop bit Bit4
Motor movement status
Start
0
1
Motor stop
A
V1
1->0
Motor accelerates to V1
B
V1
0->1
Motor decelerates to stop
C
V1
1->0
Before the motor stopped, it
accelerated to V1.
D
V1->V2
0
Motor accelerates from V1 to V2
E
V2->0
0
Motor decelerates from V2 to 0
F
0
0->1
Motor stop
G
0->V1
1
Motor stop
The table above explains how the stop bit and the target speed are used together to affect
motor speed. Between points B and C, the motor does not come to a complete stop, but
decelerates according to the trajectory deceleration value that begins at point B. When the stop
bit switches at point C, it immediately accelerates back to the target speed. At point E, reducing
the target speed to zero has the same effect as using the stop bit.
It should be noted that no matter if the stop bit is set and the target speed is set to zero, a torque