Festo SLG-Z Series User manual

(en) Operating
instructions
Intermediate position module
SLG-Z-...
8074758
2017-10b
[8074760]

SLG-Z-...
Festo SLG-Z-... 2017-10b
2
Original instructions
Symbols: Installation and commissioning may only be per
formed in accordance with these instructions by
technicians with appropriate qualifications.
Warning
Caution
Note
Environment
Accessories
English 3.........................................................................

SLG-Z-...
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Intermediate position module type SLG-Z-...English
Documentation on the product
For all available product documentation èwww.festo.com/pk
1 Operating parts and connections
12 3
87
4
56
1Connecting thread for compressed air
2Stop lever with stop
3Grooves for proximity switches
4Toothed profile for approximate positioning
5Centring holes (for positioning without fastening rail type SLG-...-S-...)
6Stop with stop plate
7Thread for accurate adjustment of the stop (secured with locking nuts)
8Fastening holes (sliding blocks and fastening screws included in delivery)
Fig. 1

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2 Method of operation and use
The intermediate position module belongs to
the intermediate position set of pneumatic
slide unit type SLG-... . This also consists of:
– cushioning support type SLG-D-...,
– fastening rail type SLG-S-... and
– intermediate position module type
SLG-Z-... .
The stop lever 2of the intermediate position
module swivels in and out when the pneu
matic connections are pressurized. When it
swivels out, the slide of a linear drive (e.g.
slide unit SLG-...) knocks against the stop on
the stop lever and is therefore in an intermedi
ate position.
A magnet is fastened to the internal double
piston of the intermediate position module.
The position of the piston and thereby the
position of the stop lever (swivelled in or out)
can be scanned by means of proximity
switches in the groove 3of the intermediate
position module.
The intermediate position module has been
designed for cushioning mass forces in a posi
tion between the end positions of linear
drives (e.g. in conjunction with the intermedi
ate position sets with a slide unit type
SLG-...). Within the permitted loading limits,
the intermediate position module also func
tions as a stop.
Fig. 2
SLG-...
SLG-Z-...
SLG-S-...
SLG-D-...
Fig. 3

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3 Conditions of use
Please note
Incorrect handling can lead to malfunctioning.
SMake sure that the requirements in this chapter are always observed.
The product will then function correctly and safely.
SCompare the maximum values in these operating instructions with your actual
application (e.g. pressures, impact forces, impact energy, torques, tempera
tures).
The product can only be operated in accordance with the relevant safety guide
lines if the maximum loading limits are observed.
SMake sure there is a supply of correctly
prepared compressed air.
SPlease observe the regulations applicable
to the place of use and comply with
national and local regulations.
SRemove the packing.
The packaging is intended for recycling
(except for oiled paper which must be
disposed of).
STake into account the prevailing ambient
conditions.
SPlease operate the SLG-Z-... in a clean
environment.
If dirt is not removed, the lever may only
swivel with difficulty.
SSlowly pressurize the complete system.
To do this use start-up valve type HEL-... .
SUse the product in its original state. Un
authorized modification is not permitted.
Fig. 4
LF-... LR-...
Fig. 5
[°C] [%] [mbar]
Fig. 6

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4 Fitting
Fitting mechanical components
Please note
The stop will be damaged if masses strike
it at an angle.
Make sure that the cushioning energy
is always applied vertically, if possible in
the centre of the stop plate 6.
SScrew a connector (see “Accessories”)
into the connector thread 1.
SFasten the support holder type SLG-D-...
as follows:
1. Push cushioning elements (shock ab
sorbers or rubber buffers) into the
cushioning support.
When retrofitting an existing slide unit
type SLG-... , you can use the shock ab
sorbers of the slide unit. Lift these out
with a screwdriver and push them into the
cushioning support (see Fig. 9).
Fig. 7
m
m
Fig. 8
Fig. 9

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Both end stops (A) of the SLG-... must
then be removed and fitted again at the
same height in the groove (B) of the
fastening rail.
2. Fasten the cushioning support with cen
tring pins and the fastening screw sup
plied to the slide of the linear drive (e.g.
type SLG-...).
Make sure that the alignment is correct. If
fitted correctly, the cushioning support
will be below the edge of the slide of the
SLG-... (see Fig. 11).
SFasten the fastening rail type SLG-S-... as
follows:
Place the fastening rail type SLG-S-... on
the profiled edge (C), position it with
dowel pins (D) and tighten with screws in
all the fastening holes. The supporting
surface must be level (see operating in
structions for type SLG-...).
The tightening torques are shown in the
table below:
Fig. 10
(A)
(B)
Fig. 11
d
Fig. 12
(C)
SLG-S-...
Fig. 13
(D)

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Type SLG-Z-8-... SLG-Z-12-... SLG-Z-18-...
Tightening torque
– Cushioning support
– Fastening rail
– Intermediate position module
2.9 Nm
1.2 Nm
0.76 Nm
2.9 Nm
1.2 Nm
0.76 Nm
5.9 Nm
2.9 Nm
1.2 Nm
Fig. 14
SFasten the intermediate position module type SLG-Z-... as follows:
1. Push the sliding block into the groove (E)
of the fastening rail and screw the two
fastening screws through the intermedi
ate position module into the sliding block.
It should then still be possible to shift the
intermediate position module type
SLG-Z-... .
2. Push the slide of the pressureless linear
drive (e.g. slide unit type SLG-...) by hand
into the intermediate position.
3. Align the intermediate position module in
the direction of the stop and place it in the
toothed profile of the fastening rail (stop
possible from left and from right). The
position of the stop to the mid-position
can then be adjusted by ± 0.75 mm.
The minimum permitted distance X1for
swivelling the stop lever and for the pneu
matic connections X2must be observed
here (see Fig. 17).
SLG-Z-... 8-... 12-... 18-...
Minimum distance
– for swivelling the
stop lever X1
– for thescrew
connection X2
23 mm
16 mm
23 mm
16 mm
31 mm
16 mm
Fig. 17
Fig. 15
(E)
Fig. 16
x2x2
x1

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Fitting pneumatic components
SConnect the pneumatic tubing 1.
Fitting electric components
Using proximity switches:
SPlace the proximity switches in the groove
3of the intermediate position module
(Fig. 19).
SFasten the proximity switches in the end
positions.
There must be a minimum distance L of
10 mm from ferromagnetic parts.
Fitting control components
Please note
The stop lever can destroy the shock absorber when it moves back.
SMake sure that the slide of the linear drive is outside the swivel range when
the stop lever moves in (e.g. by means of a control delay circuit).
The swivel-in speed of the stop lever exceeds the slide speed of the slide unit
type SLG-... .
Fig. 18
1
Fig. 19
3
Fig. 20
Fe
10mm
ÓÓ
ÓÓ
ÓÓ
ÓÓ
ÓÓ
ÓÓ

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5 Commissioning
Please note
Malfunctioning can occur if excessive
loads are applied to the stop lever.
SMake sure that the following points
are always observed:
– The alignment of the stop in
accordance with Fig. 21.
– The stop lever must have sufficient
space to swivel in and out (per-
mitted distances see chapter
“Fitting mechanical components”).
– The stop lever is moved out at the
correct time.
– The slide of the linear drive must be
outside the swivel range of the stop
lever.
Please note
Be careful not to squash your fingers
when the stop lever moves in.
SMake sure that:
– nobody can place his/her hand in
the positioning range of the stop
lever.
– there are no objects in the position-
ing range of the stop lever.
Fig. 21
mm
m
Fig. 22

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1. Swing the stop lever of the SLG-Z-... in by hand.
2. Push the slide of the linear drive by hand into the end position from which
movement is to be made to the intermediate position.
3. Pressurize the intermediate position mod
ule type SLG-Z-... as follows:
– At first simultaneous pressurization of
both sides. In this way the stop lever
will move very slightly to an equilib
rium point.
– Then exhaust the cylinder chamber for
the extended end position (A in Fig.
23). The stop lever will then be pressed
into the retracted end position.
4. Pressurize the linear drive (e.g. slide unit SLG-...) such that the end position
approached under point 2 is maintained.
5. Start a test run in accordance with the operating instructions for the linear
drive at low frequency and at low impact speed.
6. Accelerate the work load in steps until the operating speed is reached.
Please refer to your application for these speeds.
The slide of the linear drive must not strike hard against the intermediate posi
tion module type SLG-Z-... .
Fig. 23
A

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7. Check during the test run to see if the
following points need to be modified:
– The swivel-in time of the stop lever
(unrestricted the stop lever will strike
in the mid-position the slide of the
SLG-...).
– Position of the proximity switches
– Adjusting the stop lever.
The stop lever must be locked only on
the side which does not face the plate.
The following setting ranges are possible:
Type SLG-Z-8-... SLG-Z-12-... SLG-Z-18-...
Distance Amin 2.5 mm 3.7 mm
Distance Amax 4.2 mm 5.4 mm
Tightening torque 2,9 Nm 5,9 Nm
Fig. 25
Modifications may only be undertaken when the slide is at a stand.
8. Conclude the test run.
6 Operation
Using the intermediate position module with a rubber buffer.
STake into account the fact that the end position will change after long periods
of operation due to the continuous deformation of the rubber buffer.
With diagonal or vertical fitting of the module.
SUse the cushioning variant with shock absorber type YSRG-... .
Fig. 24
A

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7 Care and maintenance
SIf the intermediate position module or other parts of the set are dirty, clean
it/them with a soft cloth.
Permitted cleaning agents are:
– soap suds (max. 60 °C)
– all non-abrasive agents.
8 Dismantling and repairs
Dismantling
SExhaust the complete system and the module.
If required:
SReturn the SLG-Z-... to our repair service for overhaul.

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9 Accessories
Designation Type
Proximity switches SME-10-.../SMT-10-...
Centring pin ZBS-...
Screw connector QSLM-M3-...
LCN-M3-PK-... (for fitting into restricted spaces)
Shock absorber YSRG-...
Start-up valve HEL-...
Fig. 26
10 Eliminating faults
Fault Possible cause Remedy
Hard knocking in
stroke end position
Shock absorber defective Replace shock absorber
Stop overloaded Reduce the impact speed
Loud knocking at
start of stroke
Rubber buffer worn Replace rubber buffer
Faults in position
interrogation
Position of the proximity
switches incorrect
Correct position of proximity
switches
Incorrect type of proximity
switched used
Use only proximity switches of
type SME/SMT-10-...
Proximity switch defective Replace proximity switch
Ferritic parts in vicinity of
proximity switch
Use parts made of non-
magnetic materials
Fig. 27

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11 Technical specifications
Type SLG-...
8-...-Z.. 12-...-Z.. 18-...-Z..
Mounting position As desired, (e.g. on fastening rail type SLG-S-...)
Medium Filtered (min. 40 ìm) lubricated or non-lubricated
compressed air
Cushioning type Hydraulic cushioning (with SLG-...-Z-YSRG-...)
elastic cushioning (with SLG-...-ZP-...)
Operating pressure Min. 1 bar ... max. 8 bar
Connections M3
Max. cushioning energy per stroke
– SLG-...-Z-P-...
– SLG-...-Z-YSRG-...
1 800 J
18 000 J
10 800 J
54 000 J
Max. permitted impact force
– SLG-...-Z-P-...
– SLG-...-Z-YSRG-...
100 N
320 N
450 N
600 N
Max. actuation frequency 1 Hz
Max. impact speed 1 m/s 1.5 m/s
Extending/retracting time *) 0.1 s 0.15 s
Permitted temperature range - 10 ... max. + 60 °C
Materials Housing: Al (anodized)
Toothed rod: POM
Pinion: St
Screws, sliding block: St
Seals: PU
Rubber buffer: NBR
Weight (SLG-...-Z..) 33.5 g 33.5 g 75 g
Fig. 28 *) At 6 bar and T = 20 °C

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Copyright:
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
Phone:
[phone]
Fax:
[phone]
E-mail:
[e-mail]
Internet:
www.festo.com