Festo DGC-8 ... 63-... - Manual (Page 6)

l F
l
∅ 8
∅ 12
∅ 18
∅ 25
∅ 32
∅ 40
∅ 50
∅ 63
Fig. 6 This shows the support spacings required for the various fittings
Fitting profile fastenings type MUC:
1. Place the profile fastenings equally over the entire length of the drive, and not
just over the stroke length.
2. Fasten the profile fastenings on the DGC Fig. 7.
Fig. 7
3. Turn the clamping screws until they are equally tight.
Tightening torques [Nm]
MUC-8/12 MUC-18 MUC-25/32 MUC-40 MUC-50/63
1.2 4.1 8.3 14 20
Fig. 8
4. Make sure that the profile attachment does not
collide with the slide or effective load (especially
with lateral mounting). To do this, push the slide
with the effective load over the complete travel
distance.
m
Fig. 9
With hard and stiff effective loads:
Fig. 10
Note
If the slide becomes bent because of a
buckled effective load, the service life
of the guide will be reduced.
• Make sure that the mounting sur-
face of the effective load has the
following flatness (t):
– G/GF: t
≤ 0.03 mm
– KF/FA: t ≤ 0.01 mm
• Note the tightening torques when fastening the work load on the slide:
Tightening torques [Nm]
DGC- 8/12 18 25/32 40 50/63
M4 G 2 – – – –
KF 2.5
M5 – 3.5 3.5 3.5 –
M6 – 6.5 6.5 6.5
M8 – – 10
Fig. 11
Effective loads with own guide:
• Adjust the guides of the work load and of the DGC so that they are exactly
parallel.
This is the only way to avoid overloading the slide
11 Technical Data: Perm.
forces.
5.2 Fitting pneumatic components
Installation in a vertical or diagonal position:
Warning
If there is a power failure, the work mass will slide down. Danger of crushing!
• Check whether non-return valves HGL are necessary.
In this way, you can prevent the work mass from sliding down suddenly.
• Check whether safety measures are necessary to prevent the mass from sink-
ing down slowly as a result of leakage (e.g. toothed latches or moveable
bolts).
• Select the supply ports.
In addition to the supply ports
provided at the factory (W), there are
also the alternative ports (A). These
are fitted with plug screws.
W = Supply ports ex works
A =
Alternative ports
Fig. 12
W
W
A
A
A
A
ø 8/12
l
r
L R
With sizes 18 … 63 the compressed
air can be connected on one side
(right).
L =
end position left
R = end position right
l = movement to the left
r = movement to the right
Fig. 13
ø 18 ... 63
W (r)
A (l)
A
A
W (l)
L R
l
r
A (r)
Setting the slide speed:
• Rotate the one-way flow control valves GRLA into the supply ports.
5.3 Installing the electric components
Position scanning with proximity sensors SME/SMT:
• Use grooves (S) from Fig. 16 to mount the proximity sensors.
• Observe the minimum distances between ferritic masses and the proximity
sensors.
In this way you will avoid incorrect switching as a result of external influences.
Minimum clearances [mm]
POS 8 12 18 25 32 … 63
L1 1 0 0 0
1 2
2 – 0 0
L2 1 20 10 10 0
2 – 25 25
L3 1 30 25 25 25
2 – 10 25 0
L4 1 0 0 0
2 – 0 0
Fig. 14 (POS = position of proximity sensor)
• Place the proximity sensor on DGC-8/12 as follows:
Position SME-10/SMT-10F-KL (-SL) SME-10/SMT-10F-KQ (-SQ)
End position left
(“L”
Fig. 12)
Cable exit to cylinder centre neces-
sary Fastening screw faces end cap
End position right
(“R”
Fig. 12)
Fitting position, any Fitting position, any
Fig. 15
In this way, you take into consideration the fact that the switching solenoid is
arranged asymmetrically (left) on the internal slide.
In case of continuous signal:
• Check whether the proximity switch has been fitted the right way round.
Laying the cables for the proximity switches:
• Note that the cables for the proximity switches can be passed through the
groove.