MPH-02, MPB-02, MPD-02
Operating Modes
7-37
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
direction greater than the programmed target position window!
The following applies to the braking procedure:
starting po braking distance – target position
> S-0-0418
→
positioning in negative direction not allowed; i.e. drive must move to
target in positive direction
•
Case 5:
current velocity = 0
→
drive moves to target position in negative direction
The following applies to the braking procedure:
starting po braking distance – target position
< S-0-0418
→
positioning in negative direction allowed; i.e. drive must move to
target in negative direction
•
Case 6:
current velocity negative and braking distance smaller than the
difference between starting position and next target position
→
drive directly moves to target position in negative direction
The following applies to the braking procedure:
starting pos. + braking distance (negative) – target position
< S-0-0418
→
positioning in negative direction directly at target position
•
Case 7:
current velocity negative and braking distance greater than the
difference between starting position and next target position
→
drive brakes to zero and positions at next target position in positive
direction
The following applies to the braking procedure:
starting pos. + braking distance (negative) – target position
> S-0-0418
→
drive brakes to zero and positions positively at next target position
Note:
As a matter of principle, the braking distance is calculated
before starting the positioning movement; the result of the
calculation influences the subsequent positioning procedure.
In the "shortest distance" mode the drive positions at the effective target
position (cf. S-0-0430) over the shortest possible distance.
Note:
Depending on
S-0-0417, Velocity threshold for positioning
in modulo format
, the drive moves with or without reversal of
direction.
The following examples show the behavior of the drive in the "shortest
distance" mode with different velocities.
•
Case 8:
current velocity positive and
> S-0-0417
; braking distance greater than
the distance between starting position and next target position
→
drive moves to target position, that can be reached without reversal
of direction, in positive direction
The following applies to the braking procedure:
starting po braking distance – target position
> S-0-0418
→
positioning in negative direction not allowed; i.e. drive must move to
target in positive direction
Shortest Distance
"Shortest Distance" with
Different Velocities
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
▪
Hydraulic
▪
Pneumatic
▪
Electrical
▪
Mechanical
▪
(800)
426-5480
▪
www.cmafh.com
