Schmalz RECBi User manual

Operating instructions
Ejector Module RECBi
WWW.SCHMALZ.COM EN-US · 30.30.01.03601 · 00 · 01/23

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, 01/23
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
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Contents
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Contents
1Important 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 Symbols.................................................................................................................................................6
2Fundamental 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
2.7 Criteria for Use in Collaborative Applications .................................................................................10
3Product description....................................................................................................................................... 11
3.1 Product Description ...........................................................................................................................11
3.3 Product Design...................................................................................................................................12
3.4 Description of Functions.................................................................................................................... 12
3.5 LED Display.........................................................................................................................................13
3.6 NFC Interface...................................................................................................................................... 14
4IO-Link Operating Mode ..............................................................................................................................15
4.1 ISDU Parameter Data.........................................................................................................................15
4.2 Process Data .......................................................................................................................................16
5Description of Functions ..............................................................................................................................17
5.1 Monitoring the System Vacuum and Defining Switching Points.................................................... 17
5.2 Production Setup Profiles..................................................................................................................18
5.3 Control Functions (Air-Saving Function) ..........................................................................................18
5.4 Applying Suction to the Workpiece/Part (Vacuum Generation)..................................................... 19
5.5 Depositing the Workpiece/Part (Blowing Off)................................................................................. 20
5.6 Automatic Operation ........................................................................................................................21
5.7 Setting Mode .....................................................................................................................................21
5.8 System Commands ............................................................................................................................. 21
5.9 Access Control .................................................................................................................................... 22
5.10 Device Data ........................................................................................................................................23
5.11 User-Specific Localization..................................................................................................................23
5.12 Output and Input Signals .................................................................................................................. 23
5.13 Switch-Off Delay ................................................................................................................................ 24
5.14 Set Permissible Evacuation Time t1 (0x006B) ................................................................................... 24
5.15 Setting the Permissible Leakage ....................................................................................................... 24
5.16 Changing the Blow-Off Flow Rate on the Ejector ...........................................................................25
5.17 Counters .............................................................................................................................................25
5.18 Device Status ...................................................................................................................................... 25
5.19 Active Profile......................................................................................................................................26
5.20 Energy and Process Control (EPC) ..................................................................................................... 27

Contents
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5.21 IO-Link Events ....................................................................................................................................30
6Technical Data...............................................................................................................................................31
6.1 General Parameters ...........................................................................................................................31
6.2 Performance Data..............................................................................................................................31
6.3 Electrical Specifications .....................................................................................................................31
6.4 Maximum Forces ................................................................................................................................ 32
6.5 Dimensions ......................................................................................................................................... 32
6.6 Factory Settings.................................................................................................................................. 34
6.7 Pneumatic Circuit Plans .....................................................................................................................35
7Transportation and Storage......................................................................................................................... 36
7.1 Checking the Delivery........................................................................................................................ 36
7.2 Unpacking the Device........................................................................................................................ 36
7.3 Transport / Storage / Preservation ....................................................................................................36
8Installation ....................................................................................................................................................37
8.1 Mechanical Attachment ....................................................................................................................37
8.2 Connecting Compressed Air..............................................................................................................38
8.3 Electrical Connection ......................................................................................................................... 39
9Operation ......................................................................................................................................................46
9.1 Safety Instructions for Operation .....................................................................................................46
9.2 Checking for Correct Installation and Function............................................................................... 46
9.3 Setting Process Parameters ...............................................................................................................47
10 Help with Malfunctions................................................................................................................................ 48
11 Maintenance and Cleaning .......................................................................................................................... 49
11.1 Safety Instructions for Maintenance ................................................................................................49
11.2 Maintenance ......................................................................................................................................49
11.3 Cleaning .............................................................................................................................................50
11.4 Replacing the Silencer .......................................................................................................................50
11.5 Replacing the Nozzle.........................................................................................................................52
12 Spare and Wearing Parts.............................................................................................................................. 55
13 Accessories ....................................................................................................................................................56
14 Taking the Product Out of Operation and Disposal................................................................................... 57
15 Declarations of Conformity.......................................................................................................................... 58
15.1 EC Conformity .................................................................................................................................... 58
15.2 UKCA Conformity ..............................................................................................................................58
16 21.10.01.00191_00_Data_Dictionary_RECBi_1C.pdf ...................................................................................60

1 Important Information
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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 in-
stall 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 is permanently attached to the product and must always be clearly legible.
It contains product identification data and important technical information.
4For spare parts orders, warranty claims or other inquiries, have the information on the type plate to
hand.
The type plate (1) contains important information
about the product:
• Part sales designation/type
• Part number
• Serial number
• Coded date of manufacture
• CE label
• QR code
1

1 Important Information
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1.4Symbols
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.

2 Fundamental Safety Instructions
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2Fundamental Safety Instructions
2.1Intended Use
The RECBi is designed to generate a pneumatic vacuum for gripping and transporting objects when used
in conjunction with vacuum grippers.
The goods to be lifted must be dry, airtight, rigid and have a smooth surface. Non-airtight or unstable ob-
jects must be tested for suitability before they are handled with a vacuum.
Neutral gases in accordance with EN983 are approved as evacuation media. Neutral gases include air, ni-
trogen and inert gases (e.g. argon, xenon and neon).
The intended use of the product is for time-limited gripping, handling and holding in enclosed spaces. It
must always be mounted on heat-dissipating materials.
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.
The product may only be used with robot systems that comply with the provisions of DIN ISO/TS 15066,
DIN EN ISO 10218-1 and DIN EN ISO 10218-2.
Operation as part of a collaborative system is only permitted when the entire system meets the corre-
sponding legal requirements for collaborative robot systems. The system integrator is responsible for en-
suring that these requirements are complied with.
2.2Non-Intended Use
Schmalz does not accept any liability for any direct or indirect losses or damages that result from using
the product. This applies, in particular, to any use of the product that is not in accordance with the in-
tended purpose and to any use that is not described or mentioned in this documentation.
In particular, the following are considered non-intended use:
1. Use in potentially explosive atmospheres
2. Direct contact with perishable goods/food products
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 capa-
ble.
• The operating staff have been instructed in the operation of the product
and have read and understood 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 train-
ing.
Applicable 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 employees must observe the relevant industry-specific rules and regulations.

2 Fundamental Safety Instructions
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2.4Warnings in This Document
Warnings warn against hazards that may occur when handling the product. The signal word indicates the
level of danger.
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 objects caused by incor-
rect activation and switching of the device while persons are in the plant (safety
door opened and actuator circuit switched off)
Serious injury
4Ensure that the components are enabled via the actuator voltage by installing a poten-
tial separation between the sensor and actuator voltage.
4Wear the required personal protective equipment (PPE) when working in the danger
zone.

2 Fundamental Safety Instructions
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CAUTION
Compressed air or vacuum in direct contact with the eye
Severe eye injury
4Wear eye protection
4Do not look into compressed air openings
4Do not look into the silencer air stream
4Do not look into vacuum openings, e.g. suction cups
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.
WARNING
Serious injuries due to improper mounting!
4Carry out mounting and removal only when the device is in an idle, depressurized
state.
4Use only the connectors, mounting holes and attachment materials that have been
provided.
WARNING
Suspended load
Risk of serious injury
4Do not walk, stand or work under suspended loads.
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.

2 Fundamental Safety Instructions
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2.7Criteria for Use in Collaborative Applications
The following criteria justify the suit-
ability of the gripper for use in collabo-
rative applications:
See the adjacent image, Figure 3) and
4).
The gripper has an inherently safe de-
sign and rounded edges and shapes
that prevent hazards.
1) Automation cell
Separate workspaces
2) Coexistence
Presence detection
Contact zones
3) Cooperation
Shared workspaces
4) Collaboration

3 Product description
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3Product description
3.1Product Description
The products differ with regard to the basic position of the ejector module in the de-energized state NO
(normally open) and NC (normally closed).
The product is designed with an integrated ejector module and is marked “1C” in the type key.
Depending on the variant, the product has a different design for the interface to the vacuum gripper.
Gripper design and preparation
Identified by UNI in the type key.
Universal flange plate for:
- Central suction cup connection
- Mounting threads for customer-specific grippers
Identified by PXRi in the type key.
Version PXRi for arranging suction cups in a line
- Vacuum supply via the connections on the ejector module
- Arrangement of suction cups in a line
Identified by PXRx in the type key.
Version PXRx for connecting 4 suction cups, for example
- Vacuum supply via the connections on the ejector module
- Arrangement of suction cups for workpieces with surfaces
on one level

3 Product description
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3.2Part Table
Schmalz part no. Version
10.02.03.00434 Digital I/O + IO-Link
RECBi 24V-DC NC UNI 1C
10.02.03.00437 Digital I/O + IO-Link
RECBi 24V-DC NO UNI 1C
10.02.03.00443 Digital I/O + IO-Link
RECBi 24V-DC NC PXR-I 1C
10.02.03.00444 Digital I/O + IO-Link
RECBi 24V-DC NO PXR-I 1C
10.02.03.00446 Digital I/O + IO-Link
RECBi 24V-DC NC PXR-X 1C
10.02.03.00447 Digital I/O + IO-Link
RECBi 24V-DC NO PXR-X 1C
3.3Product Design
2
3
5
68
9
10
4
1711
1 NFC antenna 7 Flange for gripper connection
2 Display field 8 Vacuum connections
3 Compressed air connector (marking 1) 9 Vacuum connections
4 Electrical connection, M plug 10 Silencer/exhaust outlet
5 4x fastening screws 11 Central vacuum connection
6 Blow off valve screw — —
3.4Description of Functions
The product is designed for use with suction cups and generates a vacuum for gripping and transporting
objects that require a powerful vacuum or high vacuum flow rate due to their features.
The vacuum is generated in a nozzle according to the venturi principle, using suction generated by the
flow of accelerated compressed air. Compressed air is channeled into the ejector and flows through the
nozzle. A vacuum is generated immediately downstream of the motive nozzle; this causes the air to be
sucked through the vacuum connection. The air and compressed air that have been removed by the suc-
tion exit together via the silencer.

3 Product description
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The venturi nozzle on the ejector is activated and deactivated using the suction command:
• In the NO (normally open) version, vacuum generation is deactivated when
the suction signal is received.
(This means that if the power fails or if no control signal is present, vacuum
is constantly generated (continuous suction).)
• In the NC (normally closed) version, vacuum generation is activated when
the suction signal is received.
(This means that if the power fails or if no control signal is present, no vac-
uum is generated.)
When objects with airtight surfaces are picked up, the integrated non-return valve prevents the vacuum
from dropping quickly (a vacuum drop can never be ruled out. The condition of the system, such as a con-
taminated check valve, for example, has a considerable influence in this regard).
3.5LED Display
The product has 3 LEDs for status informa-
tion.
The table below describes the possible states
on the LED displays.
1
2
3
LED display LED color Behavior SCHMALZ IO-Link product status
1
“Blow-off”
— None Off RECBi does not blow off
Orange Continuous
light
RECBi blows off
2
“State”
— None Off No power supply
Blue Continuous
light
Default status: gripper has voltage and is
“ready for operation” (vacuum < SP2)
Flashing RECBi is in setting mode
Default status: gripper has voltage and is
“ready for operation” (vacuum < SP2)
Green Continuous
light
Workpiece picked up (vacuum ≥ SP2)
Flashing RECBi is in setting mode
Workpiece picked up (vacuum ≥ SP2)
Orange Continuous
light
Warning
Flashing RECBi is in setting mode
Warning
Red Continuous
light
Error
Flashing RECBi is in setting mode
Error
3 — None Off No suction from RECBi

3 Product description
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LED display LED color Behavior SCHMALZ IO-Link product status
“Pick up” Orange Continuous
light
Suction from RECBi
3.6NFC Interface
NFC (Near Field Communication) refers to a standard for wireless data transfer between different devices
over short distances.
Web link https://myproduct.schmalz.com/#/
There are two options for communicating via NFC:
• Read access only can be obtained via a website viewed in a browser. For
this, no additional app is needed. The reading device requires only that NFC
and the Internet connection are enabled.
• Another option for communication is the “Schmalz ControlRoom” control
and service app. In addition to pure read access, the app allows you to ac-
tively write the parameters of the device via NFC.
The “Schmalz ControlRoom” app is available in the Google Play Store or Ap-
ple App Store.
Process control via NFC is not possible.
For the best data connection, set the reading de-
vice on the middle of the control and display ele-
ment.
The values from “production setup profile P0 are
the decisive values in digital I/O mode and SIO
mode. These values can be adapted or set via NFC,
for instance.
The reading distance is very short for NFC applications. Determine the position of the NFC an-
tenna in the reading device used. If parameters of the device are modified via NFC, then the
power supply must subsequently remain stable for at least three seconds to prevent data loss
(error E01).
3.7Basic Principles of IO-Link Communication
The product is operated in IO-Link mode to enable intelligent communication with a control unit.
The IO-Link communication takes place using cyclical process data and acyclical ISDU parameters.
The product’s parameters can be set remotely using IO-Link mode.
In addition, the energy and process control (EPC) feature is available.

4 IO-Link Operating Mode
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4IO-Link Operating Mode
By default (after the supply voltage has been applied), the product always runs in digital I/O mode or SIO
mode, but can be switched to IO-Link mode at any time by an IO-Link master.
When operating the product in IO-Link mode (digital communication), the supply voltage, the ground
and the communication line are connected to a controller, either directly or using intelligent terminal
boxes. The communication line for IO-Link (C/Q line) is always connected with an IO-Link master port
(point-to-point connection). It is not possible to connect multiple C/Q lines to a single IO-Link master port.
Connecting the RECBi via IO-Link provides access to a number of additional functions alongside the basic
functions of the RECBi, such as suction, blow-off and feedback.
They include:
• The current vacuum level
• Choice of four production profiles (production setup profiles)
• Errors and warnings
• System status indicator
• Access to all parameters
• Energy and process control (EPC) functions
This allows all modifiable parameters to be read, modified and written back to the RECBi directly via the
higher-level controller.
Evaluation of the condition monitoring and energy monitoring results allows you to draw direct conclu-
sions regarding the current handling cycle and perform trend analyses.
The product supports IO-Link revision 1.1 with fifteen bytes of input data and four bytes of output data. It
is also compatible with IO-Link masters that use revision 1.0 and above. In this case, one byte of input
data and one byte of output data are supported.
The process data is exchanged cyclically between the IO-Link master and the product (max. data transmis-
sion rate with COM2 = 38.4kilobauds).
ISDU parameter data (acyclical data) is exchanged only on request. It is exchanged by the user program in
the control unit using communication modules, for example.
4.1ISDU Parameter Data
In addition to the process data that is exchanged cyclically and therefore automatically, the IO-Link proto-
col provides an acyclical data channel for identification data, setting parameters or general feedback from
the device.
An overview of all the device data can be found in the “Data Dictionary”.
With IO-Link, the data objects from the device data are referred to as the ISDU (index service data unit)
and have to be uniquely addressed within a device through their index and subindex.
The device data includes:
• Identification data such as the part number, serial number, user-specific in-
formation (e.g. installation and storage location), and so on
• Setting parameters such as limit values, permissible leakage values, and so
on
• Device feedback
The exact meaning of the data and functions is described in the “Description of Functions” chapter.
Controller manufacturers usually provide a specialized function module – e.g. the “IOL_CALL” module for
Siemens controllers – to enable these ISDU parameters to be accessed from a control program. These con-
trol unit-specific modules must be obtained directly from the control unit manufacturer.
The acyclical data channel can be used to retrieve ISDU parameters with further information about the
system status.

4 IO-Link Operating Mode
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4.2Process Data
The cyclical process data is used to control the product and receive current information reported from the
component.
There is a distinction between the:
• Input data (Process Data In) and
• Output data for the control (Process data out)
The input data Process data in is used to report the following information cyclically:
• The switching points SP1 (control switching point) and SP2 (switching point
for “parts present” check)
• The status of switching point SP3 (part deposited)
• The product device status in the form of a status traffic light
• Module status of the individual module in the form of a status traffic light
• Feedback about executed condition monitoring autoset function for auto-
matically determining individual condition monitoring parameters
• Warnings
• Error codes (active errors)
• Vacuum value
The output data (Process Data Out) is used to control the product cyclically:
• The product is controlled using the suction and blow-off commands.
• The desired operating mode is specified via setting mode (continuous suc-
tion or control)
• The condition monitoring parameters can be specified automatically using
the condition monitoring autoset function.
• Activation of predetermined parameter profiles (production setup profiles)
• Default connection pressure (compressed air)
The exact meaning of the data and functions is described in more detail in the “Description of Functions”
chapter. A detailed description of the process data can be found in the Data Dictionary.
A device description file (IODD) is available for integration into a higher-level control unit.

5 Description of Functions
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5Description of Functions
5.1Monitoring the System Vacuum and Defining Switching Points
The product has integrated sensors for measuring the vacuum.
The current vacuum value and current pressure values can be retrieved via IO-Link.
Two independent switching points (SP1 and SP2) can be set. Each switching point has an activation point
and a corresponding hysteresis (RP1 and RP2). The system vacuum is constantly compared to the set values
for the switching points during operation.
The switching points are set via IO-Link.
A “Status” LED displays when the switching point for SP2 is reached (> See ch. 3.5 LED Display,p. 13).
The set values for SP2 must be lower than the values for SP1. The exact conditions for the settings are pro-
vided in the data dictionary.
The control function uses switching points SP1 and RP1 for regulation. Switching point SP3 “(> See ch.
part detached)” cannot be adjusted. It is fixed at 20mbar. Signal SP3 is issued when the vacuum reaches <
20mbar (provided that the vacuum has already reached SP2 once). By issuing this signal, the ejector mod-
ule tells the control that the part has been deposited successfully. The signal is reset by issuing a new suc-
tion command.
Parameter Description
SP1 Vacuum control value
RP1 Vacuum reset point
SP2 Switching point for part present
RP2 Reset point for part present
SP3 Part deposited (vacuum < 20mbar)
System vacuum evaluation:
Once the system vacuum reaches the value for SP2, the following responses are triggered:
• The process data bit for SP2 is set (see Data Dictionary).
• The state of LED 2 changes from a blue light to a green light (if there is no
active error or warning (condition monitoring))
• In SIO mode, the SIO output OUT2 (part present) is activated according to
the PNP/NPN configuration in parameter “Signal type: SIO outputs of the
device” parameter 0x0049
Once the system vacuum reaches the value for SP1, the following responses are triggered:
• When the control function is activated, vacuum generation is interrupted
• The process data bit for SP1 is set (see Data Dictionary).

5 Description of Functions
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Overview of switching points P0; the specified parameters apply to production setup profile P0. For other
profiles, the data can be taken from the data dictionary.
ISDU [hex] Limit value parame-
ter
Description Factory
P0: 0x0064 SP1 Vacuum control value
Vacuum switching point
750mbar
P0: 0x0065 RP1 Vacuum hysteresis
Vacuum reset point
600mbar
P0: 0x0066 SP2 Activation value of “part present”
check signal output
550mbar
P0: 0x0067 RP2 Deactivation value of “part present”
check signal output
540mbar
5.2Production Setup Profiles
In IO-Link mode, the product can store up to four different production setup profiles (P0 to P3). I.e. the
process parameters can be adapted to different application conditions.
The following process parameters are stored:
• Control function (air-saving function)
• Disable continuous suction
• Switching point 1 (SP1)
• Reset point (RP1)
• Switching point 2 (SP2)
• Reset point (RP2)
• Duration of automatic drop-off
• Permitted evacuation time
• Permitted leakage rate
• Profile name (can only be defined via IO-Link)
See Data Dictionary in the appendix.
The respective profile is selected using the output process data byte 0 or the parameter “Active profile”
0x0113.
Production setup profile P0 is selected as the basic setting and in SIO mode, i.e. the settings that are valid
for SIO mode are determined by profile P0.
In the “Profile name” parameter 0x0077, you can provide a user-specific name for each section.
5.3Control Functions (Air-Saving Function)
The product allows you to conserve compressed air or prevent an excessive vacuum from being generated.
Vacuum generation is interrupted when the set vacuum limit value SP1 is reached. If leakage causes the
vacuum to fall below the limit value (RP1), vacuum generation resumes.
Either continuous suction mode or control mode can generally be used to lift the workpiece.
In SIO mode, the “Air-saving function” [0x0044] in production setup profile P0 is definitive.
SP1 can be specified using the appropriate “Switchpoint 1 (SP1)” parameter in the profile (“production
setup profiles P0 to P3”). In SIO mode, SP1 is determined using the “Switchpoint SP1” parameter 0x0064
in the production setup profile P0.

5 Description of Functions
EN-US · 30.30.01.03601 · 00 · 01/23 19 / 64
The following control function operating modes can be chosen:
ISDU
(hex)
Parameter Value
Hex
Description
0x0044 Ejector module
control mode
0x00 No control
0x01 Control function activated
0x02 Control activated, with supervision (onS)
Description Description of control functions
No control (continuous suc-
tion)
The ejector produces continuous suction with maximum power. If SP1 is
exceeded, this is reported back through “SP1 ejector” in the input
process data.
Control function activated The ejector switches off vacuum generation when the switching point
SP1 is reached and switches it back on when the vacuum falls below the
hysteresis point RP1. The switching point evaluation for SP1 follows the
control function. To protect the ejector, valve switching frequency
monitoring is activated in this operating mode. If the readjustment is
too fast (valve switching frequency > 6/3 seconds), the control function
is deactivated and the device switches to continuous suction.
The “Disable continuous sucking” parameter 0x004E can be used to dis-
able monitoring of the valve switching frequency.
Control function activated,
no continuous suction 1)
Corresponds to the operating mode: Control function activated. How-
ever, continuous suction is not activated if the valve frequency (> 6/3
seconds) is exceeded. The control function remains active.
Control function activated,
leakage measurement acti-
vated, no continuous suc-
tion1)
Corresponds to the operating mode: Control function activated. Leak-
age monitoring is also activated, but the device does not switch to con-
tinuous suction when the permitted leakage is exceeded or when the
valve switching frequency is exceeded.
1) When the control shutoff is deactivated, the suction valve makes frequent adjustments. The product
may be destroyed.
5.4Applying Suction to the Workpiece/Part (Vacuum Generation)
The ejector is designed for vacuum handling of airtight parts in combination with suction systems. The
vacuum is generated in a nozzle according to the Venturi principle, using suction generated by the flow
of accelerated compressed air. Compressed air is channeled into the ejector and flows through the nozzle.
A vacuum is generated immediately downstream of the motive nozzle; this causes the air to be sucked
through the vacuum connection. The air and compressed air that have been removed by the suction exit
together via the silencer or exhaust air channel.
Vacuum generation on the ejector is activated or deactivated via the “Suction” signal input in SIO mode
or via the “Suction” command in IO-Link mode (“Vacuum ejector” output process data):
• In the NO (normally open) version, vacuum generation is deactivated when
the suction signal is received.
(This means that if the power fails or if no control signal is present, vacuum
is constantly generated (continuous suction).)
• In the NC (normally closed) version, vacuum generation is activated when
the suction signal is received.
(This means that if the power fails or if no control signal is present, no vac-
uum is generated.)
An integrated sensor measures the generated vacuum level. The exact vacuum value can be read out via
the IO-Link “Vacuum ejector” output process data (see Data Dictionary).

5 Description of Functions
20 / 64 EN-US · 30.30.01.03601 · 00 · 01/23
The diagram below shows the vacuum curve when the control function is activated:
Vacuum
[mbar]
Vacuum on Time [s]
SP1
SP2
RP1
RP2
OUT=on
OUT=off
The ejector has an integrated control function and automatically regulates the vacuum in suction mode:
• The electronics switch vacuum generation off as soon as the vacuum limit
value set for switching point SP1 is reached.
• When objects with airtight surfaces are picked up, the integrated non-re-
turn valve prevents the vacuum from dropping quickly.
• If leakages cause the system vacuum to drop below the limit value config-
ured for the switching point RP1 (= reset point), vacuum generation is reac-
tivated.
• Based on the vacuum level, the “part present” signal output in the SIO ver-
sion or the bit “SP2 part present” in IO-Link mode is set when a workpiece is
securely picked up. This enables the further handling process.
5.5Depositing the Workpiece/Part (Blowing Off)
The operating state and thus the “Blow-off” valve are directly controlled by the “Blow-off” signal input.
In IO-Link mode, the device switches to “Blow-off” mode through the “Blow-off Ejector” output process
data bit.
In blow off mode, the vacuum circuit of the ejector is supplied with compressed air. This ensures that the
vacuum drops quickly, allowing the workpiece/part to be deposited quickly.
Info: In IO-Link mode, the set input process data bit “SP3 Ejector” (part detached) provides you with infor-
mation about whether a picked-up part has been deposited (see also “Monitoring System Vacuum and
Defining Switching Points”).
The RECBi provides three blow-off modes that can be selected using the “Blow-off mode” parameter
0x0045:
• Externally controlled blow-off
• Internally controlled blow-off – time-dependent
• Externally controlled blow-off – time-dependent
The blow-off signal is given priority over the suction signal. This applies even when the set blow-off time
is very long.