User guide

DRRD-08/10
Festo AG & Co. KG
Postfach
73726 Esslingen
Germany
[phone]
www.festo.com
Operating instructions 8030937
1310NH
[8030939]
Original: de
Semi-rotary drive DRRD-8/10 English....................................
Note
Installation and commissioning may only be performed in accordance with these
instructions by technicians with appropriate qualifications.
1 Control sections and connec t ions
1 234
5
67 8
1 Supply port
(swivel clockwise)
2 Supply port
(swivel anti-clockwise)
3 Flanged shaft
4 Shaft opening with centring recess
for through-feed of
cables/compressed
5 Payload mounting interface ( 4x)
6 Mounting interface DRRD (2x)
7 Slot for cylinder switch (2x)
8 Shock absorber for swivel angle
adjustment, secured with lock nut
(2x)
Fig. 1
2 Function and application
The DRRD semi-rotary drive is a double-acting twin-piston drive. When the com-
pressed air supply ports are pressurised reciprocally, two pistons arranged in par-
allel move in the opposite direction backwards and forwards. This linear motion is
converted through pinions into a swivel motion of the flanged shaft. The DRRD has
an elastic end-position cushioning.
The DRRD semi-rotary drive is intended for swivelling payloads which have to ex-
ecute a defined angular movement.
3 Requirements for product use
Note
Malfunction and material damage due to incorrect handling.
• Always comply with the specifications of this chapter.
Only in this way can you ensure that the product functions correct ly and
safely.
• 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.
• Observe the warnings and notes on the product and in the relevant operating
instructions.
• Remove all transport packaging, such as transparencies, caps and cartons
(with the exception of any covers in the pneumatic ports).
The packaging is intended for recycling
(exception: oil paper = residual waste).
• Take into account the material specifications ( 11 Technical data).
• Use the product in its o riginal status, without any unauthorised product modific-
ations.
• Take into consideration the ambient conditions at the location of use.
Corrosive elements in the environment (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, masses,
speeds, etc.).
Operation of the product in compliance with the relev ant safety regulations is
contingent on adherence to the load limits.
• Take the tolerance of the tightening torques into ac c ount. Unless otherwise
specified, the tolerance is ± 20 %.
• Do not modify any screws or t hreaded pins unless this is requested in these
instructions. For safety reasons, they are fixed with a screw locking agent.
For vertical in stallation:
• Make sure that the drive has reached a stable position when it comes to a stop
(e.g. the lowest point or secured with external stops).
• Make sure there is a supply of correctly prepared compressed air
( 11 Technical data).
• Having selected a medium, stick with it for the entire life of the product
(e.g. always use unlubricated compressed air).
• Pressurize your entire system slowly.
There will then be no uncontrolled movements. For slow start-up pressurisation,
use on-off valve HEL.
4 Installation
4.1 Mechanical installation
Note
• Handle the DRRD with care to prevent damage to the flanged shaft. This ap-
plies in particular to the following points:
1. Position the DRRD so that you c an easily reach the control sections and c onnec-
tions.
2. Secure the DRRD at the mounting interface 6 by using two screws and two
centring sleeves each.
Observe the tightening torque ( Fig. 3).
Direct mounting Through-hole fastening
6 6
Fig. 2
Size
8 10
Screw (direct mounti ng) M4 M4
Tightening torque [Nm] 3 3
Screw (through-hole fastening) M3 M3
Tightening torque [Nm] 1.2 1.2
Centring sleeve ZBH [mm] 7 7
Fig. 3