Festo Неполноповоротный привод DFPB - Manual (Page 6)

Setting the inner end position of the single−acting DFPB
1. Using an Allen key, turn the adjusting screw
aJ:
ć clockwise to expand the angle of rotation
ć counter−clockwise to reduce the angle of rotation
until the connected process valve reaches the desired position.
· To reduce the angle of rotation, carefully pressurise the DFPB as necessary
with compressed air at port 2 (A).
· Vent the DFPB again immediately following.
2. Turn the opposite adjusting screw aJ in the same direction until you feel
resistance. Make sure that this does not change the position of the connected
process valve.
Completing the setting of the end positions:
1. Tighten the locking nuts
7 back on the adjusting screws aJ.
2. Pressurise
ć the double−acting DFPB in alternation at ports 2 (A) and 4 (B)
ć the single−acting DFPB only at port 2 (A).
· Check whether the connected process valve reaches the desired positions.
8 Care and maintenance
If used as designated in the operating instructions, the device will be free of
maintenance.
9 Dismantling and repairs
Warning
Danger of injury from uncontrolled motions.
· Switch the tubing system pressureless before dismantling.
Warning
In the single−acting DFPB, the spring mounts are connected in each case to the
housing covers including the built−in springs
only via the adjusting screws.
When dismantling the housing covers, the spring returns in the device can cause
the covers to fly off and cause injury if the covers are not securely connected to
the spring mounts by the adjusting screws. There is danger of this if the
connecting adjusting screws do not behave as described in these instructions. To
prevent the housing cover from flying off, you must ensure
· that the adjusting screws of the DFPB
never get screwed all the way into the
device.
· that the spring pre−tension force is taken up by the adjusting screw when
loosening the tie rod nuts. For this, the tie rod nuts must be easy to turn. Be
careful if they are not easy to turn. Also be careful if the adjusting screw is
easy to turn in the pressureless state.
In all these cases, the drive must not be opened.
Note
When the connection screws are loosened, the DFPB may switch in an uncontrolĆ
led manner.
· Vent the DFPB before starting any dismantling work.
1. If necessary, remove any existing limit switches.
2. Remove the solenoid valve.
3. Loosen the screws on the flange of the process valve.
4.Remove the semi−rotary drive from the process valve.
5. Send the device to Festo for repairs.
10 Accessories
Please select the appropriate accessories from our catalogue
è
www.festo.com/catalogue
11 Technical data
DFPB, double−acting 10 ... 300 370 ... 1050
DFPB, single−acting 10 S ... 150 S 180 S ... 520 S
Pneumatic connection G1/8
Design Rack and pinion, double−acting
Assembly position as desired
Swivel angle [°] 90
End position adjustment range [°] ±4
Closing direction as desired
Operating pressure [bar] 1 Ū 8
Operating medium Dried compressed air, lubricated or unlubricated
Ambient temperature [°C] ć20 Ū +80
Materials
Cover Die−cast aluminium, painted
Housing Anodised aluminium
Shaft Anodised aluminium
Piston Die−cast aluminium
External screws Stainless steel
Locking nuts Anodised aluminium
Springs Steel
Seals Nitrile rubber
Fig. 7
DFPB, double−acting 10 20 30 45 65
DFPB, single−acting ć 10 S 15 S 20 S 30 S
Flange hole pattern
(see type designation) ISO5211 F03 F04
F03
2)
F04 F05
F04
2)
F05
Product weight
ć double−acting [kg] 0,5 1 1,3 1,7 2,2
ć single−acting [kg] ć 1,7 2,5 3,1 4,4
Air consumption at an operating pressure of 6 bar per cycle
ć double−acting [l] 0,18 0,45 0,62 0,89 1,33
ć single−acting [l] ć 0,23 0,31 0,44 0,66
Switching times 1)
ć double−acting [s] < 1
ć single−acting, air [s] < 1
ć single−acting, spring [s] < 1
1) The switching times correspond to average values under idling conditions.
2) For single−acting DFPB only (S)
DFPB, double−acting 80 120 170 230 300
DFPB, single−acting 40 S 60 S 80 S 110 S 150 S
Flange hole pattern
(see type designation) ISO5211 F05 F0507 F0710 F0710 F0710
Product weight
ć double−acting [kg] 2,6 4,2 5,2 7,1 7,8
ć single−acting [kg] 5,2 8,8 10,7 16,7 18,8
Air consumption at an operating pressure of 6 bar per cycle
ć double−acting [l] 1,66 2,42 3,5 4,72 6,07
ć single−acting [l] 0,83 1,21 1,75 2,36 3,04
Switching times 1)
ć double−acting [s] < 1
ć single−acting, air [s] < 1 < 1 < 1 < 1,5 < 2
ć single−acting, spring [s] < 1 < 1 < 1,5 < 2 < 2
1) The switching times correspond to average values under idling conditions.
DFPB, double−acting 370 470 550 670 840 1050
DFPB, single−acting 180 S 230 S 270 S 330 S 420 S 520 S
Flange hole pattern
(see type designation) ISO5211 F1012 F1012 F1012 F1012 F14 F14
Product weight
ć double−acting [kg] 12,9 14,2 18,6 20,4 30,5 32,2
ć single−acting [kg] 34,2 28,7 50,5 49,8 76,1 92,2
Air consumption at an operating pressure of 6 bar per cycle
ć double−acting [l] 7,45 9,31 10,9 13,4 16,6 20,7
ć single−acting [l] 3,72 4,65 5,47 6,69 8,29 10,4
Switching times 1)
ć double−acting [s] < 1,2 < 1,6 < 2
ć single−acting, air [s] < 2
ć single−acting, spring [s] < 2
1) The switching times correspond to average values under idling conditions.
Fig. 8