Festo DSM Serie Notice D'utilisation page 3

DSM(-T)-6/-8/-10
Operating instructions
Original: de
Semi-rotary drive DSM(-T)-6/-8/-10
Note
Installation and commissioning are to be carried out only by qualified personnel
in accordance with the operating instructions. First read through completely all
the operating instructions supplied with the product.
Control sections and connections
1
Mounting holes
2
Supply ports
3
Square
4
Output shaft
– With DSM-...:
stud shaft
– With DSM-...-FW:
flanged shaft
5
Mounting thread
Fig. 1
1 Function and application
When the compressed air supply ports 2 are pressurised reciprocally, the inner
vane in the housing swivels backwards and forwards. This swivel movement is
transferred to the drive shaft 4.
The DSM semi-rotary drive has been designed for swivelling useful loads which do
not have to carry out a complete revolution.
2 Transport and storage
• Make sure storage conditions are as follows:
– short storage times
– cool, dry, UV and corrosion resistant.
3 Requirements for product use
Note
Incorrect handling can result in malfunctions.
• Make sure that the specifications contained in this chapter are adhered to at
all times.
This is the only way to ensure correct and safe product behaviour.
• Take into consideration the legal regulations applicable for the destination, as
well as:
– regulations and standards
– regulations of the testing organizations and insurers
– national specifications.
• Note the warnings and instructions on the product and in the relevant operating
instructions.
• Remove all transport packaging such as plastic sheets, caps and cartons (ex-
cept for any covers in the pneumatic ports).
The material used in the packaging has been specifically chosen for its
recyclability (exception: oil paper = residual waste).
• Take into account the material specifications
Festo AG & Co. KG
Postfach
D-73726 Esslingen
+49 711 347 0
www.festo.com
8024557
1301b
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
5 4 3
(
Technical data).
• Use the product in its original status, without any unauthorised product modific-
ations.
• Take into consideration the ambient conditions at the location of use.
Corrosive environments (e.g. ozone) will reduce the service life of the product.
• Compare the limit values specified in these operating instructions with your
actual application (e.g. pressures, forces, torques, temperatures, loads,
speeds).
Operation of the product in compliance with the relevant safety regulations is
contingent on adherence to the load limits.
• Take the tolerance of the tightening torques into account. Unless otherwise
specified, the tolerance is ±20 %.
• Make sure the compressed air is properly prepared (
• Maintain the selected medium for the total service life of the product. Example:
Always use non-lubricated compressed air.
• Slowly pressurise the system as a whole.
There will then be no uncontrolled movements.
For slow start-up pressurisation, use start-up valve type HEL.
4 Installation
4.1 Mechanical installation
• Handle the DSM with care so that the drive shaft is not damaged.
This applies in particular to the subsequent points:
1. Place the DSM so that you can easily
reach the control section.
English
2. Fasten the DSM with at least 2
screws.
When using the square for optional pur-
poses:
3. Avoid any lateral forces on the
square. This serves only as a
connecting component for the
extension modules WSM-... and
2
KSM-... ( Accessories).
4. When mounting the useful load,
make sure that the following spe-
cifications are complied with (Fig. 4):
– installation without tilting
– permissible radial force Fz
– permissible axial force Fx
– permissible mass moment of iner-
tia( Technical data).
The mass moment of inertia of the movable load should be calculated. Lever arms,
cantilevers, useful load and mounting component s at the drive shaft should be
taken into account in the calculation.
To fasten the useful load:
DSM-6
DSM-8
Fig. 5
• Push the useful load onto the output shaft (stud shaft/flanged shaft) (Fig. 5)
• Make sure that the useful load cannot slide off the drive shaft. The flattening
with DSM(-T)-6/-8 and the thread on the front side of the Woodruff key with
DSM(-T)-10 are helpful here.
• Use external shocks in the following cases:
– when the DSM is operated without an air cushion on the exhaust side (e.g.
after long breaks between the individual swivel motions)
– when a more accurate swivel angle setting is required.
When external stops and shock absorbers are used:
Note
• Make sure that the following points are observed
(Fig. 6):
– point of impact in the mass moment of inertia (im-
portant for eccentric loads on the lever arm)
– max. permissible stop force (
– Minimum stop radius r
Technical data).
Fig. 2
Fig. 3
Fig. 4
DSM-10 DSM-...-FW
Technical data)
( Technical data).
min
Fig. 6