Festo DGEA Series Operating Instructions Manual page 36

DGEA−...
Mounting the work load
Select a fastening possibility:
S
a) If fastening to the original cover, use the threaded holes.
b) If fastening to a self−made or modified cover, provide the cover with the hole
pattern and connections, then fit the cover.
Please note
If the original cover is loosened, the technical specifications in the chapter
Technical specifications, interface−related" will no longer be valid.
These specifications become valid again when the factory status is re
stored.
S Tighten the cover screws with the tightening torques as specified in the
chapter "Technical Specifications."
Warning
Danger of injury due to sharp−edged profile tubing.
S Do not operate the DGEA−... without the end cover or covering.
Reducing vibrations
Place the centre of gravity of the work
S
load centrically to the cantilever arm.
If mounted correctly, distance a will re
main small.
Note the limit values.
S
Formula for ascertaining the loading:
(values see catalogue "Products")
) J
J
B
J
A =
J = Mass moment of inertia of the brake
B
J = Mass moment of inertia of the gear
G
J = Mass moment of inertia of the motor
mot
i = Gear ratio: n
36
J A
)
G
i 2
[ 1AAA10
J
mot
Mass moment of inertia of the moving mass (= work load + mass of
the cantilever arm)
/n
motor axis
F
Ó Ó Ó Ó
a
F
Ó Ó Ó Ó
Fig. 13
(e.g. right−angle gear unit: i = 3)
a
Ó Ó
Ó Ó
Festo DGEA−... 0501a English