User`s manual

Programmed Motion

GFK-1742A Chapter 7 Programmed Motion 7-37

TL02 ON

2 Begins

S-CURVE Jumps to a higher Acceleration while Accelerating or a lower

Deceleration while Decelerating

The second case involves jumping to a higher velocity while accelerating or a lower velocity while

decelerating. When this occurs, the DSM314 continues to the first move’s acceleration or

deceleration. This acceleration or deceleration is maintained, similar to be a linear acceleration,

until the axis approaches the new velocity. Then the normal S-curve is used to reduce

acceleration or deceleration to zero.

Example 14: S-CURVE - Jumping to a Higher Velocity While Accelerating

or Jumping to a Lower Velocity While Decelerating

In this example, a JUMP command is triggered during the initial phase of acceleration (at the first

dashed line) and the velocity at the jump destination is higher than that of the current move. The

first dashed line indicates the maximum acceleration of the first CMOVE. This value is held as

the axis continues to accelerate until it s-curves back to constant velocity. Constant velocity, the

second dashed line, indicates the beginning of the second CMOVE. This move continues until it

decelerates to zero at the end of the program.

ACCEL 50000

VELOC 30000

1: JUMP CTL02, 2

CMOVE 150000, INCR, S-CURVE

2: VELOC 90000

ACCEL 25000

CMOVE 500000, INCR, S-

CURVE

Figure 7-17. Jumping to a Higher Velocity While Accelerating, or Jumping to a Lower Velocity While

Decelerating