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5.4 Installation of accessories
• Use the grooves as per Fig. 16 for fastening the accessories.
S =
Groove for proximity switches (sensors)
N = Groove for mounting attachments
DGC-8
DGC-12
S
S
DGC-32
DGC-40
N
S
S
S
N
S N
N
Fig. 16
• Use slot covers to avoid dirt in the sensor grooves (S) of the DGC-18 ... 63.
6
Commissioning
6.1 Commissioning the complete system
• Slowly pressurise the complete system. In this way you will prevent sudden
uncontrolled movements.
For slow start-up pressurisation, use on-off valve HEL.
6.2 Preparing for commissioning
With effective loads or at high and medium slide speeds:
• Use the configuration tool "DGC-QuickCalc" for pneumatic drives in the down-
load area
www.festo.com
• Use cushioning elements of sufficient size.
Without external cushioning devices the DGC will withstand maximum speeds
and work loads as per catalogue specifications.
Warning
Without external cushioning devices the DGC may be damaged if the maximum
values specified in the catalogue are exceeded.
• Even in the event of faults, the limit values must not be exceeded.
Before each commissioning and in operation:
Warning
Within the positioning range, make sure that
– nobody can reach into the path of the movable
components (e.g. by providing a protective
guard).
– there are no objects in the positioning path.
It should not be possible to touch the DGC until
the mass has come to a complete standstill.
For DGC-...-G/GF:
• Remove the protective cover from the guide rail.
6.3 Carrying out commissioning
1. Close the one-way flow control valves
– for both sides at first completely,
– then open one rotation.
Using the internal end position cushioning PPV:
2. Close the adjusting screws for the internal end
position cushioning PPV
– first close completely,
– then open one rotation.
3. Pressurise the DGC as follows:
– At first on both sides simultaneously. The slide will then move slightly to a
centre of equilibrium.
– Then exhaust the DGC on one side. In this way you can avoid peak loadings on
the DGC and in the compressed air network.
4. Start a test run.
DGC-18
DGC-25
S
S
S
DGC-50
DGC-63
N
N
N
N
S
S
N
S N
N
Fig. 17
Fig. 18
Fig. 19
5. Check whether the speed of the slide must be modified.
Mass geometries with projection:
Warning
Danger of collision
• Note that the adjusting screws of the DGC may
only be turned when the slide is at a stand.
6. Open up the one-way flow control valves slowly until the desired slide speed is
S
N
reached.
7. Open the adjusting screws for the internal end position cushioning.
The slide should reach the end position without striking hard against it or
bouncing back.
N
Accurate adjustment of the stroke:
N
Warning
S N
The DGC will be damaged if it is operated without the stop sleeve (H) and the
locking nut (K).
• Fit the cushioning components together only with the stop sleeve (H) and the
lock nut (K).
1. Loosen locking nut (K).
2. Screw the cushioning element in or out.
DGC-...(-GP) with elastomer shock
absorber
K
Fig. 21
Note
• For reasons of stability, distance d from Fig. 21 must not exceed the values in
the following table:
Distance d [mm]
DGC-
G/GF/KF-P/PPV
GP-P/PPV
GF-YSR(W)
KF-YSR(W)
Distance d [mm]
DGC-
G/GF/KF-P/PPV
GP-P/PPV
GF-YSR(W)
KF-YSR(W)
1) Restriction: Additional masses and speed must be reduced.
Fig. 22
3. Tighten the locking nuts (K) with the following tightening torque.
Tightening torques [Nm]
DGC-
G-P/YSR(W)
GF-YSR(W)
KF-YSR(W)
Fig. 23
If the work load or dynamics are modified:
• Check whether other cushioning components are necessary.
7
Service and maintenance
Maintaining the band system:
• Clean the band system if required with a soft cloth.
• Avoid cleaning agents which will damage the band system which is made of PU.
Excessive friction or the use of grease-solvent cleaning agents (e.g. soap suds)
will damage the grease layer.
• Lubricate the surface of the band system if it no longer has a layer of grease.
Grease type: LUB-KC1 (LUB-E1 for DGC-...-H1).
Fig. 20
DGC-...-YSR(W) with shock
absorber
H
K
8
12
18
11.3 ... 16.3
12.7 ... 17.7
13.8 ... 15.8
–
–
16.9 ... 18.9
12.8 ... 22.8
14 ... 24
14.5 ... 24.5
12.8 ... 22.8
14 ... 24
14.5 ... 24.5
32
40
50
1)
1)
25.2 ... 30.2
28.7 ... 33.7
28.7 ... 33.7
1)
1)
25.2 ... 30.2
34.7 ... 39.7
–
27.3 ... 37.3
31 ... 41
31 ... 56
27.3 ... 52.3
31 ... 56
31 ... 56
8/12
18
25
32
2
–
–
3
5
8
2
5
20
20
H
25
1)
1)
21.1 ... 25.1
1)
1)
23.6 ... 27.6
22.5 ... 32.5
22.5 ... 32.5
63
1)
1)
38.8 ... 43.8
–
41 ... 76
41 ... 76
40
50
63
20
35
60
35
35
60
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