Schmalz SMPi 20 User manual

SCHMALZ SCPI /SMPI
Innovative Vacuum for Automation
EN
Operating Instruction
Compact ejector SMPi 20 and 25
30.30.01.00491/03 | 05.2017

SCHMALZ SCPI /SMPI
1-2
CONTENTS
1Safety instructions............................................................................................. 1-4
Important symbols....................................................................................................................... 1-4
General safety information.......................................................................................................... 1-4
Intended use................................................................................................................................ 1-5
2Start-up................................................................................................................ 2-6
Installation and operation............................................................................................................ 2-6
Electrical connection ................................................................................................................... 2-7
Pneumatic connection................................................................................................................. 2-7
Setting the blow-off volume flow ................................................................................................. 2-8
3Description.......................................................................................................... 3-8
Version overview......................................................................................................................... 3-8
Ejector design.............................................................................................................................. 3-9
Operating and display elements.................................................................................................. 3-10
General function description........................................................................................................ 3-11
Operating modes......................................................................................................................... 3-13
Control concept for IMP ejectors................................................................................................. 3-14
Status display for system vacuum............................................................................................... 3-15
Valve LEDs.................................................................................................................................. 3-17
Monitoring of the valve switching frequency (valve protection function)..................................... 3-17
“Diagnostics” signal output (OUT 1) ............................................................................................ 3-17
4Operating and menu concepts.......................................................................... 4-18
Menu authorisation...................................................................................................................... 4-18
Manual mode............................................................................................................................... 4-19
Basic menu .................................................................................................................................... 4-20
Setting of switching points for the air-saving function with [H-1] and [h-1] ................................ 4-22
Setting of switching points for the signal output with [H-2] and [h-2].......................................... 4-23
Zero-point adjustment (calibration) [CAL] ................................................................................... 4-24
Counters, software versions and serial numbers...................................................................... 4-25
Cycle counters [ct1] and [ct2]...................................................................................................... 4-26
Displaying the cycle counters...................................................................................................... 4-26
Software version [SoC]................................................................................................................ 4-27
Serial number [Snr] ..................................................................................................................... 4-27
Configuration menu ...................................................................................................................... 4-28
Configuration of the vacuum unit [uni]......................................................................................... 4-30
Configuration of the signal output [out] ....................................................................................... 4-30
Configuration of the air-saving function [ctr]................................................................................ 4-31
Configuration of the blow-off function [bLo]................................................................................. 4-31
Rotating the display screen [dPy]................................................................................................ 4-32
Locking the menus using a PIN code [Pin] ................................................................................. 4-33
Resetting to the factory settings (Clear All) [rES]........................................................................ 4-34
5Maintenance........................................................................................................ 5-35
Spare and wearing parts ............................................................................................................. 5-36

SCHMALZ SCPI /SMPI
1-3
6Errors................................................................................................................... 6-37
Troubleshooting........................................................................................................................... 6-37
Error codes.................................................................................................................................. 6-37
7Technical data .................................................................................................... 7-38
Electrical data ................................................................................................................................ 7-38
Electrical connection ................................................................................................................... 7-40
Electric Connection ..................................................................................................................... 7-41
Internal wiring of electrical isolation ............................................................................................ 7-41
Mechanical data............................................................................................................................. 7-42
Dimensions.................................................................................................................................. 7-43
Pneumatic circuit plans ............................................................................................................... 7-45
Overview of display symbols....................................................................................................... 7-46
Factory settings............................................................................................................................. 7-47
8Declaration of conformity.................................................................................. 8-48

SCHMALZ SCPI /SMPI
1-4
1 SAFETY INSTRUCTIONS
Important symbols

This symbol identifies important information and instructions.
Caution!
This symbol identifies a potentially dangerous situation.
If it is not avoided, slight or minor injuries may result.
Danger!
This symbol identifies an immediate hazard.
If it is not avoided, death or serious injuries may result.
General safety information
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, vapours or aerosols,
etc. If drawn in, these materials will enter the exhaust air and may result in poisoning.

SCHMALZ SCPI /SMPI
1-5
Use only the connections, attachment holes and attachment materials that have been
provided.
Carry out mounting and removal only when the device is in a disconnected, depressur-
ised state.
Do not sit or stand in the area in which the picked-up payload is transported.
Do not sit or stand in the danger area while the machine or system is in automatic mode.
Components may be installed by trained specialist personnel only.
Specialist personnel must be familiar with the most current safety rules and require-
ments. These apply to the use of such components as solenoid valves and pressure
switches and to control units for devices, machines and systems, for example.
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 feedback
signals.
Intended use
The ejector is designed for generating a vacuum for gripping and transporting objects when
used with suction pads. Neutral gases in accordance with EN 983 are approved as media to
be evacuated. Neutral gases include air, nitrogen, and inert gases (e.g. argon, helium and
neon). Aggressive gases or media such as acids, acid fumes, bases, biocides, disinfectants
or detergents are not permitted.
The ejector is not suitable to be used for the transportation or through-suction of
liquids or bulk materials such as granulates.
Personal injury or damage to the ejector may otherwise occur.
The ejector must not be used to fill pressurised containers or to drive cylinders,
valves or other pressure-operated function elements.
Personal injury or damage to the ejector may otherwise occur.

SCHMALZ SCPI /SMPI
2-6
2 START-UP
Installation and operation
For safe installation and smooth operation, please observe and maintain the following
points:
The ejector may only be operated via 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.
The device may not be operated in environments where there is a risk of
explosion.
Risk of fire and explosion.
The device may not be operated outside its specified capacities.
Doing so may either cause the device to malfunctions or destroy the device.
During installation and maintenance, make sure that the ejector is disconnected
and depressurised and that it cannot be switched on again without authorisation.
Personal injury or damage to the ejector may otherwise occur.
Protect the ejector from being damaged at all times.
No modifications may be made to the ejector.
Exclusion of warranty if X-Pump has been opened by the customer.
Connection symbols and designations 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 notices are not observed, then malfunctions, material damage and serious injury
–including fatal injury –could occur as a result.
If the ejector is no longer operative, the components must be disposed of in an ecologi-
cally sound manner.

SCHMALZ SCPI /SMPI
2-7
Electrical connection
The electrical connection of the ejector is made using 8-pin M12 male connector. The pin
assignment is described in the “Technical data” chapter.
The plug connectors may not be connected or disconnected when the system is live.
The ejector may only be operated via power supply units with protected extra-low volt-
age (PELV). The system must incorporate safe electrical cut-off of the power supply in
compliance with EN60204.
The power supply, signal inputs and signal outputs have a maximum line length of 30
metres.
Pneumatic connection
Use only well maintained compressed air (air or neutral gas according to EN 983, filtered
40 µm, oiled or unoiled).
High quality compressed air is important for the prolonged service life of the ejector.
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 as short as possible.
Insufficient compressed air is supplied if the internal diameter on the compressed air
side is too small. This prevents the ejector from performing as specified in its defined
performance data.
Excessive flow resistance occurs if the internal diameter on the vacuum side is too small.
This leads to both a reduction in suction power and increased suction times. Blow-off
times are also lengthened.
Hose lines must be laid without bends and crimps.
Only use the hose or pipe internal diameters recommended for the ejector. If this is not
possible, use the next largest internal diameter.
Line cross-section internal diameter1)
Compressed air side
Vacuum side
8 mm
9 mm
1) Based on a maximum hose length of 2 m

SCHMALZ SCPI /SMPI
3-8
Setting the blow-off volume flow
The valve screw for setting the blow-off volume flow is located underneath the vacuum con-
nection. The volume flow is reduced by turning the valve screw clockwise and increased by
turning it anti-clockwise. The valve screw is equipped with a stop on both sides.
Do not overwind the stop on the valve screw. A minimum volume flow of approx.
20% is always necessary for technical reasons.
The blow-off volume flow can be set between 20% and 100%.
3 DESCRIPTION
Version overview
Product name
Art.-Nr.
SMPi 20 IMP RD M12-8-PT SO (cpl. with connection distributor)
10.02.02.04441
SMPi 20 IMP RD M12-8-PT SO (without connection distributor)
10.02.02.04442
SMPi 25 IMP RD M12-8-PT SO (cpl. with connection distributor)
10.02.02.03480
SMPi 25 IMP RD M12-8-PT SO (without connection distributor)
10.02.02.03334
SMPi 25 IMP ISO_01 RD M12-8-PT SO(without connection distributor)
10.02.02.03649
SMPi 25 IMP ISO_01 RD M12-8-PT SO(cpl. with connection distributor)
10.02.02.03650
SMPi 25 IMP ISO_02 RD M12-8-PT SO(without connection distributor)
10.02.02.03646
SMPi 25 IMP ISO_02 RD M12-8-PT SO(cpl. with connection distributor)
10.02.02.03648
Connection distributor ASV SMPI/SCPI 2xM12-4
10.02.02.03335

SCHMALZ SCPI /SMPI
3-9
Ejector design
Item:
Description
Max. torque
SMPi
SMPi ISO-01
SMPi ISO-02
1
Operating and display elements
2
"Blow-off" valve (NC valve)
0,75 Nm
G3/8“ 0,75 Nm
G1/4“ 0,75 Nm
3
Button for operating the "blow-off"
valve manually
4
Vacuum connection with 3/8" thread
10 Nm
10 Nm
10 Nm
5
Valve screw for blow-off volume flow
6
Integrated power blow-off module
for maximum blow-off volume flow
7
Silencer
8
Electrical connection plug M12, 8-pin
hand-tight
hand-tight
hand-tight
9
"Suction" valve (pulse valve)
0,75 Nm
0,75 Nm
0,75 Nm
10
Compressed air connection with 1/4"
thread
10 Nm
ISO-01
ISO-02
11
Ejector mount
6 Nm
1 Nm
1 Nm
12
Securing screw for silencer
1 Nm
1 Nm
1 Nm

SCHMALZ SCPI /SMPI
3-10
Operating and display elements
The ejector can be set and operated easily using the membrane keypad. The current
vacuum and setting values are shown on the three-digit display.
Item
Description
1
LED for blow-off valve
2
Status display for system vacuum
3
H1 LED (air-saving function) and H2 LED (parts control signal output)
4
Display (3-digit/7-segment)
5
DOWN button
6
UP button
7
ENTER button
8
MENU button
9
LED for suction valve