Schmalz SCPSb-07 User manual

Innovative Vacuum-for Automation
EN
SCPSb
Operating instructions
30.30.01.00488

SCHMALZ SCPSb
CONTENTS
1Safety Instructions.................................................................................................... 1-3
Important symbols........................................................................................................................1-3
General safety instructions...........................................................................................................1-3
Intended use................................................................................................................................1-4
Installation and operation .............................................................................................................1-5
2Product Overview...................................................................................................... 2-6
General description of functions...................................................................................................2-6
Vacuum generation (picking up the workpiece).............................................................................2-6
Blow-off (depositing the workpiece) ..............................................................................................2-6
Versions .........................................................................................................................................2-6
Electrical connection ....................................................................................................................2-6
Ejector design................................................................................................................................2-7
3Description of Functions.......................................................................................... 3-8
General functions...........................................................................................................................3-8
Setting the blow-off volume flow...................................................................................................3-8
4Operating Mode......................................................................................................... 4-9
Mounting......................................................................................................................................4-9
Pneumatic connection................................................................................................................4-10
Electrical connection ..................................................................................................................4-10
5Maintenance............................................................................................................. 5-11
General maintenance...................................................................................................................5-11
Exterior soiling ...........................................................................................................................5-11
Silencer......................................................................................................................................5-11
Warranty, spare parts and wearing parts....................................................................................5-11
Spare and wearing parts ............................................................................................................5-11
Troubleshooting...........................................................................................................................5-12
Accessories..................................................................................................................................5-12
6Technical Data ......................................................................................................... 6-13
Electrical parameters...................................................................................................................6-13
Mechanical data...........................................................................................................................6-13
General parameters ...................................................................................................................6-13
Materials used............................................................................................................................6-14
Mechanische Parameter.............................................................................................................6-14
Dimensions................................................................................................................................6-15
Pneumatic circuit diagrams.........................................................................................................6-16
7Conformity Declaration .......................................................................................... 7-17

SCHMALZ SCPSb
1-3
1 SAFETY INSTRUCTIONS
IMPORTANT SYMBOLS

This symbol indicates informations and instructions.
Caution!
This symbol indicates a potentially dangerous situation.
If it is not avoided, slight or minor injuries may result.
Danger!
This symbol indicates an immediate hazard.
If it is not avoided, death or serious injuries may result.
GENERAL SAFETY INSTRUCTIONS
These operating instructions contain important information on using the ejector. Please
read the operating instructions thoroughly and keep them for later reference.
Never look into any open or closed vacuum vents (e.g. vacuum connec-
tions or suction pads).
Serious injuries could occur as a result. Eyes can be sucked in.
Compressed air can cause closed containers to explode. A vacuum can cause closed
containers to implode.
The ejector may only be operated with a silencer. Never look into the exhaust air jet of
the silencer.
The ejector emits noise. We recommend wearing ear protection.
This device is not intended for use with hazardous dust, oil mist, vapors or aerosols,
etc. If drawn in, these materials will enter the exhaust air and may result in poisoning.
Use only the connections, mounting holes and attachment materials that have been
provided.
Carry out mounting and removal only when the device is in an idle, depressurized state.
No person may sit or stand in the area in which the load is to be transported.
No person may sit or stand in the danger zone while the machine or system is in auto-
matic mode.
Components may be installed by trained specialist personnel only.

SCHMALZ SCPSb
1-4
Specialist personnel must be familiar with current safety rules and requirements. For
example, these apply to the use of components such as solenoid valves and pressure
switches as well as to controllers used in devices, machines and systems.
Specialist personnel must also be familiar with the system’s control concept. In particu-
lar, they must be familiar with the system’s redundant control components and feed-
back signals.
INTENDED USE
The ejector is designed to generate a vacuum for gripping and transporting objects when
used in conjunction with suction pads. Neutral gases in accordance with EN 983 are ap-
proved as evacuation media. Neutral gases include air, nitrogen and inert gases (e.g. ar-
gon, helium and neon). Aggressive gases or media such as acids, acid fumes, bases, bio-
cides, disinfectants or detergents are not permitted.
The ejector is not suitable for transporting or sucking through liquids or bulk ma-
terial such as granulates.
Personal injury or damage to the ejector may occur.

SCHMALZ SCPSb
1-5
INSTALLATION AND OPERATION
For safe installation and trouble-free operation, please observe and comply with the follow-
ing points:
The ejector may only be operated using power supply units with protected
extra-low voltage (PELV). The system must incorporate safe electrical cut-
off of the power supply in compliance with EN60204.
Do not operate the ejector in environments where there is a risk of
explosion.
Risk of fire and explosion.
The device may not be operated outside its specified performance limits.
Doing so may cause it to malfunction or be destroyed.
During installation and maintenance, make sure that the ejector is disconnected
and depressurized and that it cannot be switched on again without authorization.
Personal injury or damage to the ejector may occur.
Protect the ejector from damage at all times.
No modifications may be made to the ejector.
Opening the ejector will damage the “tested” labels. This voids the warranty.
Connection symbols and labels are located on the ejector.
These must be observed.
Only the intended connections may be used.
Pneumatic and electrical line connections must be securely connected and attached to
the ejector.
The ejector may be installed in any position.
If these instructions are not observed, malfunctions, material damage and serious injury
–including fatal injury –may result.
If the ejector is no longer operative, the components must be disposed of in an ecologi-
cally sound manner.

SCHMALZ SCPSb
2-6
2 PRODUCT OVERVIEW
GENERAL DESCRIPTION OF FUNCTIONS
VACUUM GENERATION (PICKING UP THE WORKPIECE)
The ejector is designed for vacuum handling of parts in combination with suction systems.
The venturi nozzle is activated and deactivated using the “suction” pilot valve. In the NO
version, the venturi nozzle is deactivated when voltage is applied. In the NC version, the
venturi nozzle is activated when voltage is applied.
When objects with dense surfaces are picked up, the integrated non-return valve prevents
the vacuum from dropping.
BLOW-OFF (DEPOSITING THE WORKPIECE)
The vacuum circuit of the ejector is supplied with compressed air using the “blow off” pilot
valve.This ensures that the vacuum drops quickly, depositing the workpiece quickly as
well.
VERSIONS
Each ejector has a specific item designation (e.g. SCPSb-10-S4-NO).
The item designation can be broken down as follows:
Type
Perfomance
class
Pneumatic
connection
Electrical
connection
Idle position
SCPSb
07
10
15
S4 (2x D6)
S4 (2x D6)
S2 (D6 an 1, D8 an 2)
Using the plug con-
nection of the pilot
valves
NO
Normally open
NC
Normally closed
ELECTRICAL CONNECTION
Plugs for magnetic valves are inserted until they lock into place. Press the lock lever to
remove the plugs.

SCHMALZ SCPSb
2-7
EJECTOR DESIGN
We recommend using washers on the mounting holes.
Do not look into the exhaust outlet (compressed air) during operation
Position
Description
Max. tightening
torque
1
Pilot valve „Suction“
0,2 Nm
2
Pilot valve „Blow-Off“
0,2 Nm
3
Blow-off valve screw
4
Vacuum connection (label: 2 [V])
D6 –SCPSb –07/10
D8 –SCPSb –15
5
Compressed air connection D6
6
Silencer cover
0,5 Nm
7
Mounting holes
2 Nm
8
Exhaust outlet (label 3)

SCHMALZ SCPSb
3-8
3 DESCRIPTION OF FUNCTIONS
GENERAL FUNCTIONS
SETTING THE BLOW-OFF VOLUME FLOW
There is a valve screw below the vacuum connection (2). This valve screw can be used to
set the blow-off volume flow.
Turning the screw clockwise reduces the volume flow. Turning the screw counterclockwise
increases the volume flow.
The valve screw is equipped with a stop on both sides.
Do not turn the valve screw past the stops. A minimum volume flow of approx.
10% is always necessary for technical reasons.
The blow-off volume flow can be set between 10% and 100%.
+
-

SCHMALZ SCPSb
4-9
4 OPERATING MODE
MOUNTING
SCPSb …

We recommend using washers when mounting the securing screws.
Position
Description
Max. tightening torque
1
M4 securing screw
2 Nm
2
Top-hat rail clamp for TS35 top-hat rail, incl. plastic
tapping screws (optional)
0,5 Nm

SCHMALZ SCPSb
4-10
PNEUMATIC CONNECTION
Use only well-maintained compressed air (air or neutral gas according to EN 983, fil-
tered to 20 µm, oiled or unoiled).
High-quality compressed air is important to ensure a long service life for the ejector.
If there are heavy accumulations of dirt on the suction-side, we recommended you use
additional filters, e.g. VFI 6/4 for SCPSb 07/10 or VFI 8/6 for SCPSb 15
Dirt particles or foreign bodies in the ejector connections, hoses or pipelines can lead to
partial or complete ejector malfunction.
Hoses and pipelines should be laid such that distances are minimized.
If the internal diameter on the compressed air side is too small, insufficient compressed
air will be supplied. This prevents the ejector from performing as specified in the per-
formance data.
Excessive flow resistance occurs if the internal diameter on the vacuum side is too
small. This leads to both a reduction in suction capacity and increased evacuation
times. Blow-off times are also lengthened.
Hose lines must be laid without bends or crimps.
Only use hoses or pipes with the internal diameters recommended for the ejector. If this
is not possible, use the next largest internal diameter.
RECOMMENDED LINE CROSS-SECTIONS (INTERNAL DIAMETERS)
SCPSb
performance class
Line cross-section (internal diameter) [mm]1)
Compressed air side
Vacuum side
07
4
4
10
4
4
15
4
6
1) Based on a maximum hose length of 2 m. For longer hose lengths, the cross sections must also be larger and you
must use corresponding adapters!
ELECTRICAL CONNECTION
The ejector may only be operated using power supply units with protected extra-low
voltage (PELV). The system must incorporate safe electrical cut-off of the power supply
in compliance with EN60204.
Schmalz connection lines may be used to connect the ejector directly to the controller, e.g.
Art.-no. 21.04.06.00086, 3m

When you connect the valves, you don’t need to check the polarity.

SCHMALZ SCPSb
5-11
5 MAINTENANCE
GENERAL MAINTENANCE
EXTERIOR SOILING
Remove dirt on the exterior of the device with a soft cloth and soap suds (max. 60°C). En-
sure that the silencer and the controller are not soaked with soap suds.
SILENCER
Because it is open, the silencer may be exposed to high levels of dust, oil, etc., which may
dirty the silencer to the point of reducing the suction capacity. If this happens, it must be
replaced. Cleaning is not recommended due to the capillary effect of the porous material.
WARRANTY,SPARE PARTS AND WEARING PARTS
This system is guaranteed in accordance with our general terms of trade and delivery. The
same applies to spare parts, provided that these are original parts supplied by us.
Weare not liable for any damage resulting from the use of non-original spare parts or ac-
cessories.
Wearing parts are not covered by the warranty.
The following list contains the primary spare and wearing parts.
SPARE AND WEARING PARTS
Type
Designation
Article no.
Legend
Max. tightening torque
Silencer insert
10.02.02.04141
W
NO/NC
Pilot valve „Blow-Off“
10.05.01.00104
S
0,2 Nm
NC
Pilot valve „Suction“
10.05.01.00104
S
0,2 Nm
NO
Pilot valve „Suction“
10.05.01.00103
S
0,2 Nm
Insulating plate
10.02.02.04152
S
Legend: Spare part= SWearing part= W
When tightening the securing screws on the silencer module, observe the maxi-
mum tightening torque of 0,5 Nm.

When you replace the silencer insert, we recommend that you also replace the
insulating plate.

SCHMALZ SCPSb
5-12
TROUBLESHOOTING
Fault
Possible cause
Solution
Vacuum level is
not reach or vacu-
um is created too
slowly
Silencer is dirty
Replace silencer
Leakage in hose line
Check hose connections
Leakage at suction pad
Check suction pad
Operating pressure too low
Increase operating pressure (observe max.
limits)
Internal diameter of hose
lines too small
See recommended hose diameters
Payload cannot be
held securely
Vacuum level too low
Increase operating pressure
(observe max. limits)
Suction pad too small
Select a larger suction pad
ACCESSORIES
Designation
Article no.
Connection cable for Pilot valves
21.04.06.00086
Top-hat rail clamp for TS35 top-hat rail, incl. plastic tapping
screws (optional)
10.02.02.04149

SCHMALZ SCPSb
6-13
6 TECHNICAL DATA
Operating the ejector system outside of the specified values can result in damage to the
system and attached components.
ELECTRICAL PARAMETERS
Parameter
Sym
bol
Limit values
Unit
Comment
Min.
Typ
.
Max.
Supply voltage
UA
22,8
24
26,4
VDC
PELV 1)
SCPSb –xx –xx - NO
Rated current from UA2)
IA


110
mA
UA= 24,0V
SCPSb –xx –xx - NC
Rated current from UA3)
IA


55
mA
UA= 24,0V
1) The power supply must comply with the requirements of EN60204 (protective extra-low voltage).
2) Parallel control of the “suction” and “blow off” valves
3) Separate control of the “suction” and “blow off” valves
MECHANICAL DATA
GENERAL PARAMETERS
Parameter
Symbol
Limit values
Unit
Comment
Min.
Typ
.
Max.
Ambient temperature
Tamb
0

50
°C
Storage temperature
TSto
-10

60
°C
Humidity
Hrel
10

90
%rf
Free from con-
densation
Degree of protection


IP65
Operating pressure
P
2
4
6
bar
Operating medium
Air or neutral gas, filtered to 20 µm, oiled or unoiled, com-
pressed air w/ quality class 3-3-3 acc. to ISO 8573-1

SCHMALZ SCPSb
6-14
MATERIALS USED
Component
Material
Basic body
PA6-GF, Anodized aluminum alloy
Inner components
Anodized aluminum, Anodized aluminum alloy, brass,
galvanized steel, stainless steel, PU, POM
Silencer insert
Porous PE
Seals
NBR
Lubricants
Silicone-free
Screws
Galvanized steel
MECHANISCHE PARAMETER
Type
Nozzle
size
Max.
vacuum1
Suc-
tion
rate1
Max. blow-
off capacity1
Air con-
sumption1
Sound level1
Weight
Free
sucking
sucked
mm
%
l/min
l/min
l/min
dBA
dBA
kg
SCPSb-07
0,7
85
16
130
25
63
58
0,195
SCPSb-10
1,0
85
34
130
42
75
61
0,195
SCPSb-15
1,5
85
63
130
95
77
65
0,195
1) at 4 bar

SCHMALZ SCPSb
6-15
DIMENSIONS
SCPSb...
L
L1
L2
L3
L4
B
B1
H
H1
H2
H3
H4
86,2
102,5
81,4
22
29,5
18
18,6
77,5
97
40,8
47,5
16,5
H5
d
d1
d2
d3
X1
X2
Y1
Y2
5,5
4,4
6
6
2,6
36,9
16
12
12

SCHMALZ SCPSb
6-16
PNEUMATIC CIRCUIT DIAGRAMS
SCPSb...NO...
SCPSb...NC...

SCHMALZ SCPSb
7-17
7 CONFORMITY DECLARATION

SCHMALZ SCPSb
7-18
Visit us online:
Schmalz online –www.schmalz.com
These operating instructions were originally written in German and have been translated
into English.
We reserve the right to make technical changes. No responsibility is taken for print errors
or other types of errors.
All information and specifications are subject to change without notice.
©J. Schmalz GmbH. All rights reserved.

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Stand: 07/2018 Index: 02
J. Schmalz GmbH
Johannes-Schmalz-Str 1
D-72293 Glatten
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