Danaher Motion B8961, Operator'S Manual

Page: 148 / 158

B8961 and B8962 User Manual
146
NM / RM
Smart Drive Mechanical Ratio Setting
Motor Screw Overall Ratio
[EDIT]-[SETUP]-[MECH]-[RATIO] menu
R e d u c t i o n Pitch (Mtr Tu rn s / I n c h ) Ratio for Inches Ratio for mm
M-992 1 2 2 2 to 1 20 to 254
M-995 1 5 5 5 to 1 50 to 254
M-998 1 8 8 8 to 1 80 to 254
M-9910 1 10 10 10 to 1 100 to 254
Steps for Entering Custom Distance Units
(when ratio for inches is known)
Instruction Example
1) Select User Units
Select a preferred unit of measure for linear distance. This will be centimeters
used for programming distance, and can be used for velocity and
acceleration as well.
2) Determine Overall Mechanical Ratio
Look up actuator mechanical “inch” ratio. Units must be 6.25
“motor turns/inch.” motor turns/inch
3) Convert Ratio to Turns/User Unit
Convert “turns/inch” ratio by multiplying or dividing by the same 6.25 ÷ (2.54 cm/in)
factor you would to convert inches to your preferred user unit. = 2.4606
4) Convert Decimal Ratio to Ratio of Two Integers
A. Multiply by the power of ten required to move decimal point to 2.4606 x 10 4 =
the far right. Note that a maximum of six digits can be entered into 24606
from the Smart Drive - it might be necessary to round off the
number step 3) above.
This is the numerator of the integer ratio.
B. The power of ten becomes the denominator. 10 4 = 10000
5) Enter Ratio into Smart Drive
A. Press [EDIT], [SEUP], [MECH], [RATIO] to get to the Mechanical 24606 to 10000
Ratio menu. The numbers from step 4) can now be entered.
B.
Press [ENTER] after entering the ratio numerator, then [
à
]
(24606 revs = 10000 cm)
to move right and enter the ratio denominator. Press [ENTER]
after entering the denominator, then [ESC] to move back one menu.
6) Program the Smart Drive
The Smart Drive is now ready to program in your own User Units. DI10.0 GO
Distances will match teh units configured above.
(moves 10.0 cm)