Schmalz SCPi User manual

Compact Ejector SCPi / SMPi
Operating Instructions
WWW.SCHMALZ.COM EN-US · 30.30.01.00078 · 03 · 05/22

Note
The Operating instructions were originally written in German. Store in a safe place for future reference.
Subject to technical changes without notice. No responsibility is taken for printing or other types of er-
rors.
Published by
© J.SchmalzGmbH, 05/22
This document is protected by copyright. J.SchmalzGmbH retains the rights established thereby. Repro-
duction of the contents, in full or in part, is only permitted within the limits of the legal provisions of
copyright law. Any modifications to or abridgments of the document are prohibited without explicit writ-
ten agreement from J.SchmalzGmbH.
Contact
J. Schmalz GmbH
Johannes-Schmalz-Str. 1
72293 Glatten, Germany
T: [phone]
[email protected]
www.schmalz.com
Contact information for Schmalz companies and trade partners worldwide can be found at:
www.schmalz.com/salesnetwork
2 / 54 EN-US · 30.30.01.00078 · 03 · 05/22

Contents
EN-US · 30.30.01.00078 · 03 · 05/22 3 / 54
Contents
1 Important Information ...................................................................................................................................5
1.1 Note on Using this Document ............................................................................................................ 5
1.2 The technical documentation is part of the product ........................................................................ 5
1.3 Type Plate ............................................................................................................................................ 5
1.4 Symbol.................................................................................................................................................. 6
2 Fundamental Safety Instructions...................................................................................................................7
2.1 Intended Use........................................................................................................................................ 7
2.2 Non-Intended Use ............................................................................................................................... 7
2.3 Personnel Qualification....................................................................................................................... 7
2.4 Warnings in This Document................................................................................................................ 8
2.5 Residual Risks....................................................................................................................................... 8
2.6 Modifications to the Product.............................................................................................................. 9
3 Product Description ......................................................................................................................................10
3.1 Ejector Designation ........................................................................................................................... 10
3.2 Ejector Structure................................................................................................................................ 10
3.3 Controls and Displays in Detail......................................................................................................... 11
4 Technical Data ...............................................................................................................................................15
4.1 Display Parameters ............................................................................................................................ 15
4.2 Electrical Parameters ......................................................................................................................... 15
4.3 General Parameters........................................................................................................................... 16
4.4 Performance Data ............................................................................................................................. 16
4.5 Dimensions......................................................................................................................................... 17
4.6 Maximum Torque .............................................................................................................................. 17
4.7 Factory Settings ................................................................................................................................. 18
4.8 Pneumatic Circuit Diagram ............................................................................................................... 18
5 Operating and Menu Concepts....................................................................................................................20
5.1 Unlocking the Menus ........................................................................................................................ 20
5.2 Main Menu ........................................................................................................................................ 21
5.3 Configuration Menu ......................................................................................................................... 22
5.4 System Menu ..................................................................................................................................... 23
5.5 Locking Menus Using the PIN ........................................................................................................... 23
6 General Description of Functions ................................................................................................................24
6.1 Applying Suction to the Workpiece/Part (Vacuum Generation) .................................................... 24
6.2 Control Function................................................................................................................................ 24
6.3 Depositing the Workpiece/Part (Blowing Off) ................................................................................ 26
6.4 Blow off Functions ............................................................................................................................ 27
6.5 Changing the Blow-Off Flow Rate on the Ejector........................................................................... 27
6.6 Operating Modes .............................................................................................................................. 27
6.7 Vacuum unit ...................................................................................................................................... 29
6.8 Signal output ..................................................................................................................................... 29
6.9 Rotating the Display.......................................................................................................................... 30
6.11 Zero-Point Adjustment (Calibration)................................................................................................ 30
6.12 Resetting the Device to the Factory Settings................................................................................... 30

Contents
4 / 54 EN-US · 30.30.01.00078 · 03 · 05/22
6.13 Counters............................................................................................................................................. 31
6.14 Displaying the Software Version ...................................................................................................... 31
6.15 Displaying the serial number............................................................................................................ 32
6.16 Error messages................................................................................................................................... 32
7 Transport and Storage..................................................................................................................................33
7.1 Checking the Delivery ....................................................................................................................... 33
7.2 Removing the Packaging .................................................................................................................. 33
8 Installation.....................................................................................................................................................34
8.1 Installation Instructions..................................................................................................................... 34
8.2 Mounting ........................................................................................................................................... 34
8.3 Pneumatic Connection ...................................................................................................................... 34
8.4 Electrical Connection......................................................................................................................... 36
9 Operation ......................................................................................................................................................39
9.1 General Preparations ........................................................................................................................ 39
10 Help with Faults ............................................................................................................................................40
11 Maintenance..................................................................................................................................................41
11.1 Safety Instructions ............................................................................................................................. 41
11.2 Cleaning the Ejector.......................................................................................................................... 41
11.3 Replacing the Silencer....................................................................................................................... 41
12 Warranty........................................................................................................................................................43
13 Spare and Wearing Parts..............................................................................................................................44
14 Accessories ....................................................................................................................................................45
15 Decommissioning and Recycling..................................................................................................................46
15.1 Disposing of the Product .................................................................................................................. 46
15.2 Materials Used ................................................................................................................................... 46
16 Attachment....................................................................................................................................................47
16.1 Overview of the Display Codes......................................................................................................... 47
16.2 EC Conformity.................................................................................................................................... 48
16.3 Accessories Design Data.................................................................................................................... 49
16.4 SCPi_SMPi IO-Link Data Dictionary 21.10.01.00063_00 2013-01-15.PDF ........................................ 52

Important Information
EN-US · 30.30.01.00078 · 03 · 05/22 5 / 54
1Important Information
1.1Note on Using this Document
J.SchmalzGmbH is generally referred to as Schmalz in this document.
The document contains important notes and information about the different
operating phases of the product:
• Transport, storage, start of operations and decommissioning
• Safe operation, required maintenance, rectification of any faults
The document describes the product at the time of delivery by Schmalz and is aimed at:
• Installers who are trained in handling the product and can operate and install it
• Technically trained service personnel performing the maintenance work
• Technically trained persons who work on electrical equipment
1.2The technical documentation is part of the product
1. For problem-free and safe operation, follow the instructions in the documents.
2. Keep the technical documentation in close proximity to the product. The documentation must be ac-
cessible to personnel at all times.
3. Pass on the technical documentation to subsequent users.
ðFailure to follow the instructions in these Operating instructions may result in injuries!
ðSchmalz is not liable for damage or malfunctions that result from failure to heed these instructions.
If you still have questions after reading the technical documentation, contact Schmalz Service at:
www.schmalz.com/services
1.3Type Plate
The type plate (1) is permanently attached to the
product on both sides at the location shown and
must always be clearly legible.
It contains important information about the prod-
uct:
• IO-Link symbol
• EAC label
• CE label
• Part sales designation/type
• Part number
• Pressure Range
• Voltage range
• Serial number
• Coded date of manufacture
• QR code
• Pneumatic symbol
1
Please specify all the information above when ordering replacement parts, making warranty claims or for
any other inquiries.

Important Information
6 / 54 EN-US · 30.30.01.00078 · 03 · 05/22
1.4Symbol
This symbol indicates useful and important information.
üThis symbol represents a prerequisite that must be met prior to an operational step.
4This symbol represents an action to be performed.
ðThis symbol represents the result of an action.
Actions that consist of more than one step are numbered:
1. First action to be performed.
2. Second action to be performed.

Fundamental Safety Instructions
EN-US · 30.30.01.00078 · 03 · 05/22 7 / 54
2Fundamental Safety Instructions
2.1Intended Use
The ejector is designed to generate a vacuum for gripping and transporting objects when used in conjunc-
tion with suction cups. The ejector is operated with discrete control signals.
Neutral gases are approved as evacuation media. Neutral gases include air, nitrogen and inert gases (e.g.
argon, xenon and neon).
The product is built in accordance with the latest standards of technology and is delivered in a safe oper-
ating condition; however, hazards may arise during use.
The product is intended for industrial use.
Intended use includes observing the technical data and the installation and operating instructions in this
manual.
2.2Non-Intended Use
Schmalz accepts no liability for damages caused by non-intended usage of the ejector.
In particular, the following are considered non-intended use:
• Filling pressurized containers, driving cylinders, valves or other pressure-operated functional ele-
ments
• Use in potentially explosive atmospheres
• Use in medical applications
• Lifting people or animals
• Evacuation of objects that are in danger of imploding
• Ballistic applications
2.3Personnel Qualification
Unqualified personnel cannot recognize dangers and are therefore exposed to higher risks!
The operating company must ensure the following points:
• The personnel must be commissioned for the activities described in these operating instructions.
• The staff must be at least 18 years of age and physically and mentally capable.
• The operating staff have been instructed in the operation of the product and have read and under-
stood the operating instructions.
• Installation, maintenance, and repairs must be carried out only by specialists or by persons who can
prove that they have undergone appropriate training.
Valid for Germany:
A qualified employee is defined as an employee who has received technical training and has the knowl-
edge and experience – including knowledge of applicable regulations – necessary to enable him or her to
recognize possible dangers and implement the appropriate safety measures while performing tasks. Qual-
ified personnel must observe the pertinent industry-specific rules and regulations.

Fundamental Safety Instructions
8 / 54 EN-US · 30.30.01.00078 · 03 · 05/22
2.4Warnings in This Document
Warnings warn against hazards that may occur when handling the product. This document contains three
levels of danger that you can recognize by the signal word.
Signal word Meaning
WARNING Indicates a medium-risk hazard that could result in death or serious injury if
not avoided.
CAUTION Indicates a low-risk hazard that could result in minor or moderate injury if not
avoided.
NOTE Indicates a danger that leads to property damage.
2.5Residual Risks
WARNING
Noise pollution due to the escape of compressed air
Hearing damage!
4Wear ear protectors.
4The ejector must only be operated with a silencer.
WARNING
Extraction of hazardous media, liquids or bulk material
Personal injury or damage to property!
4Do not extract harmful media such as dust, oil mists, vapors, aerosols etc.
4Do not extract aggressive gases or media such as acids, acid fumes, bases, biocides, dis-
infectants or detergents.
4Do not extract liquids or bulk materials, e.g. granulates.
WARNING
Uncontrolled movements of system components or falling of objects caused by in-
correct activation and switching of the Ejector while persons are in the plant
(safety door opened and actuator circuit switched off)
Serious injury
4Ensure that the valves and ejectors are enabled via the actuator voltage by installing a
potential separation between the sensor and actuator voltage.
4Wear the required personal protective equipment (PPE) when working in the danger
zone.
CAUTION
Depending on the purity of the ambient air, the exhaust air can contain particles,
which escape from the exhaust air outlet at high speed.
Eye injuries!
4Do not look into the exhaust air flow.
4Wear eye protection.

Fundamental Safety Instructions
EN-US · 30.30.01.00078 · 03 · 05/22 9 / 54
CAUTION
Vacuum close to the eye
Severe eye injury!
4Wear eye protection.
4Do not look into vacuum openings such as suction lines and hoses.
2.6Modifications to the Product
Schmalz assumes no liability for consequences of modifications over which it has no control:
1. The product must be operated only in its original condition as delivered.
2. Use only original spare parts from Schmalz.
3. The product must be operated only in perfect condition.

Product Description
10 / 54 EN-US · 30.30.01.00078 · 03 · 05/22
3Product Description
3.1Ejector Designation
The ejector is available in different variants.
Each variant is defined by its item designation. The breakdown of the item designation is as follows:
Type of ejector Perfor-
mance class
Control System monitor-
ing
Electrical con-
nection
Potential sepa-
ration
SCPi
without power
blow off
SMPi with
power blow off
15
1.5 mm
20
2.0 mm
25
2.5 mm
NO
Normally
open
NC
Normally
closed
IMP
Bistable,
switched
with pulse
VD
Digital vacuum
switch
RD
Digital vacuum
switch and inte-
grated control
function
M12-5
1xM12, 5-pin
M12-8
1xM12, 8-pin
-
Without poten-
tial separation
PT
With potential
separation
3.2Ejector Structure
1
2
3
4
5
6
78
9
10
11
12
13
1 Silencer 8 M12 5-pin electrical connection plug or
M12 8-pin (thread G3)
2 Optional: integrated power blow off
module for maximum blow off flow rate
(SMPi only)
9 “Suction” valve 2)
3 Valve screw for blow off flow rate 10 Button for actuating the “suction” valve
manually 3)
4 3/8" vacuum connection (thread G2) 11 1/4" compressed air connection (thread
G1)

Product Description
EN-US · 30.30.01.00078 · 03 · 05/22 11 / 54
5 Button for actuating the “blow off” valve
manually
12 2 x mounting holes
6 “Blow off” valve1) 13 Fastening screw for silencer
7 Operating and display elements — —
1) “Blow off” valve: All ejector variants with NC function (with pilot valve NO)
2) “Suction” valve:
• Ejector variant NO: Pilot valve NC
• Ejector variant NC: Pilot valve NO
• Ejector variant IMP: Pulse pilot valve
3) The button for manual operation of the “suction” valve can only be actuated with ejector variants NO
and NC.
3.3Controls and Displays in Detail
The compact ejector is fitted with the following elements to ensure simple operation:
• Four buttons on the foil keypad
• The three-digit display
• Four LEDs
• A light field for status information
1 2 3
4
8
7 9
1065
1 “Blow off” valve LED 6 DOWN BUTTON
2 Status display for system vacuum 7 UP BUTTON
3 “H1” LED (control function) 8 ENTER BUTTON
4 “H2” LED (“Part Present” check signal
output)
9MENU BUTTON
5 Display (3-digit, 7-segment display) 10 “Suction” valve LED
3.3.1Status Display for System Vacuum
The ejector has a status display for the system vacuum (2) or for monitoring functions. The system statuses
are displayed in RED or GREEN. The status display is updated during every suction cycle that was activated
or deactivated by the “suction” signal input.
During regular suction cycles, the status display is used to display the current system vacuum level in rela-
tion to switching point H1. The status display turns off when a regular suction cycle ends.

Product Description
12 / 54 EN-US · 30.30.01.00078 · 03 · 05/22
Vacuum monitoring
Item LED color Behavior Vacuum monitoring status
2 Green Lit up Rising vacuum: Vacuum ≥ H1
Falling vacuum: Vacuum ≥ H1-h1
Red Lit up Rising vacuum < H1
Vacuum < H1
Monitoring functions
If switching point H1 is never reached within a suction cycle, the status display remains RED even after the
suction cycle has ended.
The ejector variant with control function (RD) has a valve protection function. When the control function
is activated [car= on] and at the same time there is a high level of leakage in the gripping system, the
ejector often switches between the “venturi nozzle active” and “venturi nozzle inactive” statuses. The
number of valve switching procedures thus increases rapidly within a short time. To protect the ejector
and increase its service life, the ejector switches the air saving function off automatically if there are more
than 6 valve switching procedures in 3 seconds and activates continuous suction (i.e. the ejector then re-
mains in suction status).
The status display remains RED until the next suction cycle.
Item LED color Monitoring
function
Ejector response
2 Red
Lit up
H1 is never ex-
ceeded in the
suction cycle
—
Red
Lit up
Suction valve
switches more
than 6 times in
3s
Ejector switches to continuous suction,
i.e. it remains in “venturi nozzle active” status
(valve protection function)

Product Description
EN-US · 30.30.01.00078 · 03 · 05/22 13 / 54
Status display overview
Suction cycle during which H1 is reached
[ctr=on] and no leakage or
[ctr=oFF]
Air saving function
Suction cycle with vacuum control
[ctr=on]
Suction cycle with vacuum control,
during which the valve protection func-
tion is triggered
[ctr=on]
Suction cycle during which H1 is never ex-
ceeded
Key:
S: Suction ON
B: Suction OFF, blow off ON
r: RED
g: GREEN
H1: Deactivation value of control function
H1-h1: Activation value of control function
h1: Hysteresis of control function
H2: Activation value of “Part Present” check signal output

Product Description
14 / 54 EN-US · 30.30.01.00078 · 03 · 05/22
H2-h2: Deactivation value of “Part Present” check signal
output
h2: Hysteresis of “Part Present” check signal output
3.3.2LED Display for Valves
The “suction” and “blow off” process statuses are each assigned an LED.
Item Meaning Status Description
1 Blow off LED B OFF Ejector not blowing off
Lit up Ejector blowing off
10 Suction LED S OFF No suction from ejector
Lit up With NO: No suction from ejector
With NC: Suction from ejector
With IMP: Suction from ejector

Technical Data
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4Technical Data
4.1Display Parameters
Parameter Value Unit Comment
Display 3 digit Red 7-segment LED display
Resolution ± 2 digit / mbar Unit = mbar
Accuracy ± 3 % FS Tamb= 25°C, based on FS (full-scale) final
value
Linearity error ± 1 %
Offset error ± 2 digit / mbar After zero-point adjustment, without vac-
uum
Temperature influence ± 3 % 0°C < Tamb < 50°C
Display refresh rate 5 1/s Only affects the red 7-segment display
(for signal inputs and outputs see “Electri-
cal Parameters”)
Idle time before the menu is ex-
ited
2 min The display mode is accessed automati-
cally when no settings are made in a
menu
4.2Electrical Parameters
Parameter Symbol Limit values Unit Comment
min. typ. max.
Supply voltage (M12-5) USA 19.2 24 26.4 V DC PELV1)
Sensor supply voltage (M12-8-
PT)
US19.2 24 26.4 V DC PELV1)
Actuator supply voltage
(M12-8-PT)
UA19.2 24 26.4 V DC PELV1)
Rated current for NO (M12-5) IS/A — 155 — mA Plus output signal
current
Rated current for NC (M12-5) IS/A — 113 — mA Plus output signal
current
Rated current for IMP (M12-5) IS/A — 123 209 2) mA Plus output signal
current
Rated current for sensor NO/
NC (M12-8-PT)
IS— 155 — mA Plus output signal
current
Rated current for sensor IMP 1
W (M12-8-PT)
IS— 76 113 2) mA Plus output signal
current
Rated current for sensor IMP
2.3 W (M12-8-PT)
IS— 81 1672) mA Plus output signal
current
Rated current for actuator NO
(M12-8-PT)
IA— 108 — mA —
Rated current for actuator NC
(M12-8-PT)
IA— 66 — mA —
Rated current for actuator
IMP (M12-8-PT)
IA— 76 1622) mA —
Voltage of signal output (PNP) UOH US/SA-2 — US/SA VDC IOH < 150mA
Voltage of signal output
(NPN)
UOL 0 — 2 VDC IOL < 150mA

Technical Data
16 / 54 EN-US · 30.30.01.00078 · 03 · 05/22
Parameter Symbol Limit values Unit Comment
Power consumption of signal
output (PNP)
IOH — — 150 mA Short-circuit-proof 3)
Power consumption of signal
output (NPN)
IOL — — -150 mA Short-circuit-proof 3)
Voltage of signal input (PNP) UIH 15 — UA/SA VDC In reference to GndS
Voltage of signal input (NPN) UIL 0 — 9 VDC In reference to US
Current of signal input (PNP) IIH — 5 10 mA —
Current of signal input (NPN) IIL — -5 -10 mA —
Pulse duration for “suction”
valve
tP50 — — ms —
Response time of signal inputs tI— 15 — ms —
Response time of signal out-
puts
tO— 2 — ms —
1) The supply voltages must correspond to the regulations in accordance with EN60204 (protected extra-
low voltage).
The signal inputs and outputs are all protected against reverse polarity.
2) Periodic peak current for 60ms, refresh rate 560ms.
3) The signal output is protected against short circuits. However, the signal output is not protected
against overloading.
Constant load currents > 0.15A may lead to impermissible heating and therefore the destruction of the
ejector.
4.3General Parameters
Parameter Symbol Limit value Unit Note
min. typ. max.
Working temperature Tamb 0 --- 50 C ---
Storage temperature TSto -10 --- 60 C ---
Humidity Hrel 10 --- 90 % r.h. Free from condensation
Degree of protection --- --- --- IP65 --- ---
Operating pressure
(flow pressure)
P 4 5 7 bar ---
Operating medium Air or neutral gas, 5µm filtered, with or without oil, class 7-4-4 compressed
air quality in acc. with ISO 8573-1
4.4Performance Data
Variant SCPi-15 SCPi-20 SCPi-25 SMPi-15 SMPi-20 SMPi-25
Nozzle size 1.5mm 2.0mm 2.5mm 1.5mm 2.0mm 2.5mm
Max. vacuum185%
Suction rate175l/min 140l/min 195l/min 75l/min 135l/min 185l/min
Air consumption 1) 115l/min 180l/min 290l/min 115l/min 180l/min 290l/min
Blow off air consump-
tion1
200l/min
Sound level1+2 70dBA 65dBA 75dBA 74dBA 70dBA 77dBA
Weight 0.56kg
1) At 4.5 bar

Technical Data
EN-US · 30.30.01.00078 · 03 · 05/22 17 / 54
2) When picked up
All values at ambient conditions of T = 20°C and 1000mbar ambient pressure
4.5Dimensions
B d G1 G2 G3 G4 H H1 H2
22 6.6 1/4" inter-
nal thread
3/8" inter-
nal thread
M12x1 ex-
ternal
thread or
M8x1 ex-
ternal
thread
M4 inter-
nal thread
181.5 131.5 71.5
H3 H4 L L1 L2 L3 X1 X2 Y2
87.5 76 118.5 129.7 112.5 67.5 27.5 14 30
All specifications are in mm
4.6Maximum Torque
Connection Max. torque
Thread G1 10Nm
Thread G2 10Nm
Thread G3
Electrical connection plug
Hand-tight
Thread G4 5Nm
Mounting hole d
(use U-washer)
6Nm
Pilot valves 0.75Nm
Fastening screw for silencer 1Nm

Technical Data
18 / 54 EN-US · 30.30.01.00078 · 03 · 05/22
4.7Factory Settings
The following table shows the factory settings of the ejector:
Code Parameter Value of the factory setting
X-1 Limit value H1 750mbar
h-1 Hysteresis value h1 150mbar
X-2 Limit value H2 550mbar
h-2 Hysteresis value h2 10mbar
tbL Blow off time 0.2s
uni Vacuum unit Vacuum unit in mbar = -bA
tYP Signal type PNP switching = PnP
out Signal output “Normally open” contact = no
ctr Control Ejector with control function: =on
Ejector without control function: = oFF
bLo Blow off function Externally controlled blow off = -E-
dPY Display rotation Display screen not rotated = uP5
Pin PIN User-defined 000
4.8Pneumatic Circuit Diagram
Key:
NC Normally closed
NO Normally open
1 Compressed air connection
2 Vacuum connection
3 Exhaust outlet
SCPi_NO SMPi_NO

Technical Data
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SCPi_NC SMPi_NC
SCPi_IMP SMPi_IMP

Operating and Menu Concepts
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5Operating and Menu Concepts
The ejector is operated using four buttons on the foil keypad:
MENU BUTTON UP BUTTON
ENTER BUTTON DOWN BUTTON
Settings are configured in software menus. The following menus are available:
• Main menu: For standard applications
• Configuration menu: For applications with special requirements
• System menu: For reading out system data such as counters, the software version, etc.
The following information can be shown on the display:
• The current vacuum measurement value
• The selected menu item
• The settings
• Error messages in the form of error codes
The operating menu’s home screen shows the currently measured vacuum level in the selected display
unit. Pressing the ENTER button displays the unit of the currently displayed vacuum.
5.1Unlocking the Menus
Menus can be protected against unauthorized access by defining a PIN [Pin] in the configuration menu.
When the lock is active, [Loc] flashes in the display or the PIN is requested.
The menus can be unlocked as follows:
1. Press the MENU button
2. Use the UP or DOWN button to enter the first digit of the PIN
3. Confirm with the ENTER button
4. Enter the two remaining digits in the same way
5. Press the ENTER button to unlock the menu
ðWhen a valid PIN is entered, the message [VnC] is displayed.
ðWhen an invalid PIN is entered, the message [Loc] is displayed and the menus remain locked.
The lock is automatically activated once more when the selected menu is closed or the desired function
has been completed. The PIN 000 must be set for permanent deactivation of the lock.
The PIN is set to 000 on delivery. The menus are not protected.