Bosch 6000 User's Guide Page 182

  • Download
  • Add to my manuals
  • Print
  • Page
    / 268
  • Table of contents
  • TROUBLESHOOTING
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 181
Chapter 5. Custom Profiling
167
Distance
Calculations For
Compiled
Following Moves
The graph below shows 6 possibilities of ratio change profiles for preset segments, with legal
FOLMD and “D” values constrained by the requirement that the average ratio (given by
D”/FOLMD) is between R1 and R2. If the distance is outside these ranges, in the profile used
to get from R1 to R2 over FOLMD (covering “D” slave distance), an error message will be
generated during the PCOMP command. For the graphs shown, the constraints are expressed
by:
(R1 * FOLMD) <= “D” <= (R2 * FOLMD) if R2 > R1
(R1 * FOLMD) >= “D” >= (R2 * FOLMD) if R2 < R1
FOLMD
R1
R2
Slave Distance
D > (R1 + R2) * FOLMD/2
D = (R1 + R2) * FOLMD/2
D < (R1 + R2) * FOLMD/2
FOLMD
R1
R2
Slave Distance
D < (R1 + R2) * FOLMD/2
D = (R1 + R2) * FOLMD/2
D > (R1 + R2) * FOLMD/2
The two graphs above show the cases of R1<R2 or R1>R2, but the distance calculations of the
ramp and constant ratio portions are the same for the two cases. For each graph, the heavy
lined profile (first case) of these mimics the shape of the corresponding preset velocity change
(FOLENØ) segments in that the ramp takes place before the constant ratio portion. The second
case occurs only if the distance specified exactly matches the start and end ratios and FOLMD1.
In the third case, the ramp takes place after the constant ratio portion. In the first and third
cases, only two segments are built, and the slave and master distances traveled in each segment
are easily calculated with the simple formulas shown below. These formulas are based on
positive ratios and master and slave distances. In the construction of Following profiles,
ratios and master distances are always positive, with direction implied by the sign of the slave
distance. For calculations with negative slave distances, simply use the magnitude of “D” in
the formulas below, and invert the sign of the resulting slave distances.
Case 1 (Ramp first) MD1 = [D-(R2*FOLMD)]/((R1-R2)/2) where MD1 = master distance during ramp
MD2 = FOLMD - MD1 where MD2 = master distance during flat
D1 = .5*(R1+R2)*MD1 where D1 = slave distance during ramp
D2 = D - D1 where D2 = slave distance during flat
Case 2 (Ramp only) MD1 = FOLMD where MD1 = master distance during ramp
D1 = D where D1 = slave distance during ramp
Case 3 (Ramp last) MD1 = [D-(R1*FOLMD)]/((R2-R1)/2) where MD1 = master distance during ramp
MD2 = FOLMD - MD1 where MD2 = master distance during flat
D1 = .5*(R1+R2)*MD1 where D1 = slave distance during ramp
D2 = D - D1 where D2 = slave distance during flat
Page view 181
1 2 ... 177 178 179 180 181 182 183 184 185 186 187 ... 267 268

Comments to this Manuals

No comments