Schmalz IO-Link X-Pump SXPi Series User manual

EN
Schmalz X-Pump –SXPi/SXMPi
Innovative Vacuum for Automation

SCHMALZSXPI/SXMPI
CONTENTS
1Safety Instructions.................................................................................................1-5
Important symbols............................................................................................................................ 1-5
General safety instructions............................................................................................................... 1-5
Intended use..................................................................................................................................... 1-6
Installation and operation................................................................................................................. 1-7
2Product Overview...................................................................................................2-8
General description of functions...................................................................................................... 2-8
Vacuum generation (picking up the workpiece)............................................................................... 2-8
Blow-off (depositing the workpiece) ................................................................................................. 2-9
Vacuum/pressure display................................................................................................................. 2-9
IO-Link.............................................................................................................................................. 2-9
Versions ............................................................................................................................................ 2-10
Ejector version PNP or NPN .......................................................................................................... 2-10
Additional function PC.................................................................................................................... 2-10
Electrical connection ...................................................................................................................... 2-11
Ejector design................................................................................................................................... 2-12
Basic model.................................................................................................................................... 2-12
Expansion modules........................................................................................................................ 2-13
Operating and display elements..................................................................................................... 2-14
3Description of Functions.....................................................................................3-16
Operating modes.............................................................................................................................. 3-16
Control concept for NO ejectors..................................................................................................... 3-18
Control concept for NC ejectors..................................................................................................... 3-18
Control concept for IMP ejectors.................................................................................................... 3-18
General functions............................................................................................................................. 3-19
Manual mode.................................................................................................................................. 3-19
Set-up mode................................................................................................................................... 3-20
Monitoring the system vacuum ...................................................................................................... 3-20
Monitoring the system pressure..................................................................................................... 3-20
Zero-point adjustment of the sensors (calibration)......................................................................... 3-21
Control function .............................................................................................................................. 3-21
Control shutoff................................................................................................................................ 3-22
Blow-off modes............................................................................................................................... 3-23
Signal outputs................................................................................................................................. 3-23
Selecting the vacuum and pressure units...................................................................................... 3-24
Switch-off delay for the signal outputs ........................................................................................... 3-25
ECO mode...................................................................................................................................... 3-25
PIN for write protection................................................................................................................... 3-25
Reset to factory settings................................................................................................................. 3-26
Counters......................................................................................................................................... 3-26
Power failure .................................................................................................................................. 3-27
Setting the blow-off volume flow .................................................................................................... 3-27
Condition monitoring [CM].............................................................................................................. 3-28
Monitoring the valve switching frequency ...................................................................................... 3-28
Monitoring the control threshold..................................................................................................... 3-28
Monitoring the evacuation time ...................................................................................................... 3-28
Monitoring leakage......................................................................................................................... 3-29
Monitoring the operating pressure ................................................................................................. 3-29
Monitoring the dynamic pressure................................................................................................... 3-29

SCHMALZSXPI/SXMPI
Diagnostics output.......................................................................................................................... 3-30
Status indicator when a condition monitoring function is active..................................................... 3-30
Diagnostics/analysis function......................................................................................................... 3-32
Evaluation of the leakage rate........................................................................................................ 3-33
Measurement of the evacuation time t0.......................................................................................... 3-33
Measurement of the evacuation time t1.......................................................................................... 3-33
Energy monitoring [EM]................................................................................................................... 3-33
Percentual air consumption measurement..................................................................................... 3-33
Absolute air consumption measurement........................................................................................ 3-34
Energy consumption measurement ............................................................................................... 3-34
Predictive maintenance [PM] .......................................................................................................... 3-34
Measurement of the leakage.......................................................................................................... 3-34
Measurement of the dynamic pressure.......................................................................................... 3-34
Quality assessment........................................................................................................................ 3-34
Performance calculation................................................................................................................. 3-35
4Operating and Menu Concepts ...........................................................................4-36
Individual functions.......................................................................................................................... 4-36
Pressure display............................................................................................................................. 4-36
Vacuum/pressure units................................................................................................................... 4-36
Operating mode display ................................................................................................................. 4-37
Main menu......................................................................................................................................... 4-37
Setting the parameters in the main menu...................................................................................... 4-38
Zero-point adjustment (calibration) ................................................................................................ 4-38
Configuration menu ......................................................................................................................... 4-39
Setting the parameters in the configuration menu ......................................................................... 4-41
Entering the PIN............................................................................................................................. 4-41
Executing the “reset to factory settings” function ........................................................................... 4-41
System menu .................................................................................................................................... 4-42
Displaying counters........................................................................................................................ 4-43
Erasing a counter ........................................................................................................................... 4-43
Software version............................................................................................................................. 4-43
Serial number................................................................................................................................. 4-44
Article number ................................................................................................................................ 4-44
5Operating Mode....................................................................................................5-45
SIO operating mode ......................................................................................................................... 5-45
Overview......................................................................................................................................... 5-45
Mounting......................................................................................................................................... 5-46
Pneumatic connection.................................................................................................................... 5-46
Electrical connection ...................................................................................................................... 5-47
Pin assignment of the connection plug .......................................................................................... 5-48
Project planning.............................................................................................................................. 5-49
Start of operations.......................................................................................................................... 5-49
Warnings and errors....................................................................................................................... 5-50
IO-Link mode..................................................................................................................................... 5-51
Overview......................................................................................................................................... 5-51
Mounting......................................................................................................................................... 5-52
Pneumatic connection.................................................................................................................... 5-52
Electrical connection ...................................................................................................................... 5-53
Pin assignment of the connection plug .......................................................................................... 5-54
Project planning.............................................................................................................................. 5-55
Start of operations.......................................................................................................................... 5-60
Warnings and errors....................................................................................................................... 5-62

SCHMALZSXPI/SXMPI
6Maintenance..........................................................................................................6-63
General maintenance....................................................................................................................... 6-63
Exterior soiling................................................................................................................................ 6-63
Silencer........................................................................................................................................... 6-63
Screw-in/press-in filters.................................................................................................................. 6-63
Warranty, spare parts and wearing parts ...................................................................................... 6-63
Spare and wearing parts ................................................................................................................ 6-64
Troubleshooting ............................................................................................................................... 6-64
Accessories ...................................................................................................................................... 6-64
7Technical Data......................................................................................................7-65
Electrical parameters....................................................................................................................... 7-65
Display parameters .......................................................................................................................... 7-66
Mechanical data................................................................................................................................ 7-66
General parameters ....................................................................................................................... 7-66
Materials used................................................................................................................................ 7-67
Mechanical parameters.................................................................................................................. 7-67
Dimensions..................................................................................................................................... 7-67
Pneumatic circuit diagrams............................................................................................................ 7-69
Overview of display symbols.......................................................................................................... 7-71
Factory settings................................................................................................................................ 7-73
8Conformity Declaration........................................................................................8-74

SCHMALZSXPI/SXMPI
1-5
1 SAFETY INSTRUCTIONS
IMPORTANT SYMBOLS

This symbol indicates important information 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
connections 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.

SCHMALZSXPI/SXMPI
1-6
No person may sit or stand in the danger zone while the machine or system is in
automatic mode.
Components may be installed by trained specialist personnel only.
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
particular, they must be familiar with the system’s redundant control components and
feedback 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
approved as evacuation media. 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 for transporting or sucking through liquids or bulk
material such as granulates.
Personal injury or damage to the ejector may occur.
The ejector must not be used to fill pressurized containers or to drive cylinders,
valves or other pressure-operated functional components.
Personal injury or damage to the ejector may occur.

SCHMALZSXPI/SXMPI
1-7
INSTALLATION AND OPERATION
For safe installation and trouble-free operation, please observe and comply with the
following 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.
Output signals (discrete signals as well as IO-Link signals) can change
when the power supply is switched on or the M12 connectors are plugged
in. Depending on the function of the machine/system, this can result in
serious personal injury or damage to the equipment.
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 covers on the side 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
ecologically sound manner.

SCHMALZSXPI/SXMPI
2-8
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 via the suction signal input. In the NO
version, the Venturi nozzle is deactivated when the suction input signal is present. In the
NC version, the Venturi nozzle is activated when the suction input signal is present. In the
IMP version, the suction signal input is evaluated according to a pulse. This means that
the ejector goes into suction mode when a pulse with a duration of at least 50 ms is
present. A longer pulse does not affect the function.
An integrated sensor records the vacuum generated by the Venturi nozzle. This is
evaluated by an electronics system and serves as the basis for displaying the system
states and for switching the outputs.
The ejector has an integrated air-saving function. The ejector automatically regulates the
vacuum while in suction mode. The electronics system switches the Venturi nozzle off
when the switching point H1 set by the user is reached.

If small volumes are to be evacuated, the set switching point H1 might be
exceeded considerably before the vacuum is switched off. This system behavior
does not constitute an error.
When objects with dense surfaces are picked up, the integrated non-return valve prevents
the vacuum from dropping. If leakage causes the system vacuum to drop below the
switching point H1-h1, the Venturi nozzle is switched on again.
For ejectors with a pulse valve (IMP), the ejector remains in suction mode if the power
supply fails during automatic mode. This prevents objects that have been picked up from
falling off the suction pad in the event of a power supply failure. This also applies when the
ejector was in the “Venturi nozzle inactive” state with the air-saving function activated. In
this case, the ejector switches to “Venturi nozzle active,” i.e., to continuous suction. When
the power supply returns, the ejector remains in automatic mode with the air-saving
function activated. If the ejector is in blow-off mode when the power supply fails, the blow-
off is stopped and the ejector is set to “pneumatically OFF”. This prevents unnecessary
consumption of compressed air, thus saving energy and additional costs. When the power
supply returns, the ejector remains in “pneumatically OFF” mode.
The supply voltage is monitored by the electronics system. If the supply voltage falls below
approx. 19.2 V, this is indicated by an error message. It cannot be ensured that the ejector
will operate as intended below this voltage threshold.
For NO and NC ejectors, the suction valve is also equipped with a button for manual
operation. This can be used to actuate the valve manually without a power supply.

SCHMALZSXPI/SXMPI
2-9
BLOW-OFF (DEPOSITING THE WORKPIECE)
In blow-off mode, the vacuum circuit of the ejector is supplied with compressed air. This
ensures that the vacuum drops quickly, depositing the workpiece quickly as well. Blow-off
mode can be controlled externally or internally.
When controlled externally, blow-off mode is activated by the “blow-off” signal input.
When controlled internally (automatic blow-off), the blow-off valve is actuated for a defined
period after suction mode is exited. This function is not available in the IMP ejector
version.
For pulse-controlled ejectors (IMP version), the suction input signal is not evaluated if it is
still present following blow-off mode. The ejector does not switch to suction mode until
another pulse is received.
The blow-off valve is also equipped with a button for manual operation. The manual
operation button can be used to set the ejector to blow-off mode without a power supply.
The ejector must not be operated with a sealed vacuum connection.
Personal injury or damage to the ejector may occur.

The ejector also has a manual mode. In this mode, the ejector can be controlled
using the buttons on the ejector’s foil keypad. See the “Manual mode” section for
more details.
VACUUM/PRESSURE DISPLAY
The current system vacuum is always displayed in the 3-digit display. Pressing the
button while the ejector is in display mode briefly displays the current units.
The 2 LEDs below the display indicate which range the vacuum level is in relative to the
set threshold values.
For versions with an integrated pressure sensor, pressing the button displays the
current system pressure in the display instead of the current system vacuum.
IO-LINK
The ejector can be operated in IO-Link mode to enable parameterization and intelligent
communication with a controller.
This provides the user with a range of diagnostic and monitoring functions.

SCHMALZSXPI/SXMPI
2-10
VERSIONS
Each ejector has a specific item designation (e.g. SXMPi-20-NO-H-2xM12).
The item designation can be broken down as follows:
Type
Perfomance
class
Idle position
Pneumatic
connection
Additional
function
Electrical
connection
SXPi
SXMPi
(M = with
power
blow-off
module)
15
20
25
30
NO
Normally open
NC
Normally
closed
IMP
Bistable via
pulse
H Horizontal
Q Quick change
PC
Pressure control
M12
1xM12, 8-pin
2xM12
2xM12, 5-pin
The ejector system consists of a basic module and various expansion modules. The most
important components are described below.
EJECTOR VERSION PNP OR NPN
The behavior of the ejector’s electrical inputs and outputs can be adjusted on the device
and therefore does not depend on the version.
The ejectors are factory set to PNP.
ADDITIONAL FUNCTION PC
The PC option can be ordered for all ejector types. In this version, an additional pressure
sensor is integrated into the ejector.
This provides the following additional functions:
Pressure shown on display
Signal output for pressure monitoring (freely adjustable)
Additional via IO-Link:
Current pressure value
Advanced condition monitoring with
oLeakage measurement
oDynamic pressure measurement
oPerformance calculation
oQuality assessment
Advanced energy monitoring with
oAbsolute air consumption measurement
oEnergy consumption measurement

SCHMALZSXPI/SXMPI
2-11
ELECTRICAL CONNECTION
The electrical connection comes in two designs: one M12 connector with 8 pins or two
M12 connectors with 5 pins each.
Both versions have three signal inputs and three signal outputs as well as pins for the
supply voltage. For the design with one 8-pin plug, the entire ejector is supplied with only
one voltage. The design with two 5-pin plugs, in contrast, requires two voltages to supply
the sensors and the actuators of the ejector separately.
Version
Block wiring diagram
Description
M12
Blow-off
Valve
Suction
Valve
IO-Link
Vacuum
sensor
Pressure
sensor
Display
Controller
SENSOR / ACTUATOR
IN
Power
OUT
Sensors and valves
(actuators) of the ejector
are supplied by a single
voltage (VSA)
2xM12
Blow-off
Valve
Suction
Valve
IO-Link
Vacuum
sensor
Pressure
sensor
Display
Controller
ACTUATORSENSOR
IN
Power
Power
OUT
Sensors and valves
supplied separately from
two voltages (VSand VA)
Galvanic isolation of the
voltage circuits

SCHMALZSXPI/SXMPI
2-12
EJECTOR DESIGN
BASIC MODEL
The basic model of the ejector is designed as follows:
Only screw unions with cylindrical G-threads can be used at pos. 7 and
pos. 12.
Position
Description
Max. tightening
torque
1
Operating and display elements
2
Status indicator
3
Valve status indicator
4
Blow-off pilot valve –NC
0,5 Nm
5
Suction pilot valve –NO, NC or IMP (depending on version)
0,5 Nm
6
Valve screw for blow-off volume flow
7
G3/8" vacuum connection (label: 2 [V])
10 Nm
8
M12 electrical connection
handfest
9
Controller
0,5 Nm
10
Silencer
11
Mounting holes
4 Nm
12
Compressed air connection
G3/8" in H version (label: 1 [P])
10 Nm
13
2x M5 mounting threads
3 Nm

SCHMALZSXPI/SXMPI
2-13
EXPANSION MODULES
The basic module can be modified and expanded using a variety of expansion modules.
Position
Description
1.1
Basic module –NO suction valve...normally open
1.2
Basic module –NC suction valve...normally closed
1.3
Basic module –IMP suction valve...bistable via pulse
2
Power blow-off module SXMP
3.1
Horizontal pneumatic connection (1[P]= G3/8", 2[V]= G3/8")
3.2
Quick-change pneumatic connection
3.3
Quick-change double block
3.4
Quick-change release lever
4.1
Electrical connection, 2x M12, 5-pin
4.2
Electrical connection, 1x M12, 8-pin

SCHMALZSXPI/SXMPI
2-14
OPERATING AND DISPLAY ELEMENTS
The foil keypad with a three-digit display, a status indicator and 4 additional LEDs allows
for very simple operation of the ejector.
Position
Description
1
Display
2
LEDs for threshold values H1/H2
3
MENU button
4
ENTER button
5
UP button
6
DOWN button
7
Suction valve LED
8
Blow-off valve LED
9
Status indicator
VALVE LEDS
The suction and blow-off valves are each assigned an LED.
Valve LEDs
Ejector status
LEDs are both off
NO: Suction on ejector
NC: No suction on ejector
IMP: No suction on ejector
Suction LED
is continuously lit
NO: No suction on ejector
NC: Suction on ejector
IMP: Suction on ejector
Blow-off LED
is continuously lit
NC: Ejector blows off
IMP: Ejector blows off
LEDs are both
continuously lit
NO: Ejector blows off

SCHMALZSXPI/SXMPI
2-15
STATUS INDICATOR FOR SYSTEM VACUUM
During conventional suctions cycles, the status indicator shows the current level of the
system vacuum relative to the switching points H1 and H2. The status indicator goes out
after a conventional suction cycle is finished.
Status indicator
Vacuum level
RED
Rising vacuum:
Vacuum < H2
Falling vacuum:
Vacuum < (H2-h2)
Flashing RED
Rising vacuum:
Vacuum > H2 and < H1
Falling vacuum:
Vacuum > (H2-h2) and < (H1-h1)
GREEN
Rising vacuum:
Vacuum > H1
Falling vacuum:
Vacuum > (H1-h1)

If the condition monitoring function is active, different statuses are assigned to
the status indicator.
LEDS FOR THRESHOLD VALUES H1/H2
The LEDs for the H1 and H2 threshold values indicate the current level of the system
vacuum relative to the configured switching points. Their display behavior does not depend
on the switch functions or assignment of the outputs (H1/HP1), nor does it depend on
whether the condition monitoring function is active.
.
Threshold value LEDs
Ejector status
LEDs are both off
Rising vacuum:
Vacuum < H2
Falling vacuum:
Vacuum < (H2-h2)
H2 LED is continuously lit
Rising vacuum:
Vacuum > H2 and < H1
Falling vacuum:
Vacuum > (H2-h2) and < (H1-h1)
LEDs are both continuously
lit
Rising vacuum:
Vacuum > H1
Falling vacuum:
Vacuum > (H1-h1)

SCHMALZSXPI/SXMPI
3-16
3 DESCRIPTION OF FUNCTIONS
OPERATING MODES
The ejectors are differentiated according to their start position when in the idle state: NO
(normally open), NC (normally closed) and IMP (impulse).
When the ejector is connected to the power supply, the ejector is in automatic mode and
ready for operation. This is the normal operating mode, in which the ejector is operated by
the system controller. A differentiation is made between SIO mode and IO-Link mode.
In addition to automatic mode, you can also change the operating mode of the ejector to
manual mode using the buttons on the foil keypad.
Parameterization of the ejector is always performed in automatic mode.
A U T O M A T I C –M O D E
P A R A M E T R I Z A T I O N
M A N U A L M O D E

SCHMALZSXPI/SXMPI
3-17
A U T O M A T I C –M O D E
P A R A M E T E R I Z A T I O N
Main-
menu
Configuration-
menu
Suction OFF
Auto blow-off
NC, NO, IMP:
[bLo = J-t]
Blow-off ON
NC, NO, IMP:
IN2 = on
M A N U A L M O D E
Blow-off
Suction ON
NC : IN1 = on
NO : IN1 = off
IMP: IN1 = on (>50ms)
Suction OFF
NC : IN1 = off
NO : IN1 = on
Blow-off OFF
NC, NO, IMP:
IN2 = off
Pneumatically OFF
Counter-
menu
Pneumatically OFF
NC:
Power
failure
NO: Power failure
Suction
Venturi-
nozzle
active
Venturi-
nozzle
inactive
Vacuum
H1
Vacuum
<H1-h1
Air-saving function
Blow-off
Suction Air-saving function [ctr = on]:
Vacuum H1
Vacuum < H1-h1
Valve protection funktion:
Switching frequency > 6/3s
IMP: Power failure
Venturi-
nozzle
active
Venturi-
nozzle
inactive
Change in
External
signal > 3 s
> 3s > 3 s
No
button
> 2 min
IO-Link

SCHMALZSXPI/SXMPI
3-18
CONTROL CONCEPT FOR NO EJECTORS
1
0
0bar
- p
1
0
0bar
p
„Suction“ [IN1]
„Blow-off“ [IN2]
„Suction“ Mode
„Blow-off“ Mode
CONTROL CONCEPT FOR NC EJECTORS
1
0
0bar
- p
1
0
0bar
p
„ Suction“ [IN1]
„ Blow-off“ [IN2]
„Suction“ Mode
„Blow-off“ Mode
CONTROL CONCEPT FOR IMP EJECTORS
1
0
0bar
- p
> 50 ms
1
0
0bar
p
„Suction“ [IN1]
„Blow-off“ [IN2]
„Suction“ Mode
„Blow-off“ Mode

IMP ejectors are set to “pneumatically OFF” on delivery. The ejector only begins
suction after a valid pulse is received via the suction signal input.

SCHMALZSXPI/SXMPI
3-19
GENERAL FUNCTIONS
MANUAL MODE
The output signals may change during set-up in manual mode.
Ensure that the machine or system does not start moving as a result.
Personal injury or damage to the ejector could result.
Starting manual mode always switches the ejector to “pneumatically OFF” mode.
In other words, starting manual mode interrupts an active suction process.
Danger due to falling parts.
In manual mode, the pick-up and blow-off ejector functions can be controlled
independently of the higher-level controller using the buttons on the operating panel.
In this operating mode, the H1 and H2 LEDs both flash.
Because the valve protection function is deactivated in manual mode, this function can be
used to locate and rectify leaks in the vacuum circuit.
ACTIVATING MANUAL MODE
Activate manual mode as follows:
Press and hold the and buttons together for more than 3 seconds.
MANUAL SUCTION
In manual mode, suction is activated by pressing the button. Exit suction mode by
pressing the button again or by pressing the button.

If the air-saving function is activated ([ctr=on] or [ctr=ONS]), this is also
activated in manual mode.

The valve protection function is not active in manual mode.
MANUAL BLOW-OFF
Blow-off mode is activated in manual mode by pressing the button. This mode remains
active as long as the button is pressed.
DEACTIVATING MANUAL MODE
Exit manual mode while in the “pneumatically OFF” idle position using the button.
The ejector also exits manual mode when the statuses of the external signal inputs
change.

SCHMALZSXPI/SXMPI
3-20
This automatic exiting of manual mode due to changes in external signals can
cause the object being handled to move (due to suction or blow-off).
SET-UP MODE
Similar to manual mode, set-up mode can be used to locate and rectify leaks in the
vacuum circuit because the valve protection function is deactivated and because the
control function is not deactivated even if the control frequency increases.
In this operating mode, the H1 and H2 LEDs both flash.
Set-up mode is switched on and off via bit 2 in the process data byte output (PDO). A
change to bit 0 or bit 1 (suction or blow-off) in the PDO also causes the ejector to exit set-
up mode.

This function is only available in IO-Link mode.
MONITORING THE SYSTEM VACUUM
Every ejector has an integrated sensor for monitoring the current system vacuum. The
vacuum level provides information on the process and has an effect on the following
signals and parameters:
Threshold value LED H1
Threshold value LED H2
Signal output H1 (only in versions with a pressure sensor)
Signal output H2
Vacuum analog value
Process data bits H1
Process data bits H2
The threshold values and the corresponding hysteresis values can be set under the menu
items [H-1], [h-1], [H-2] and [h-2] or via IO-Link.
MONITORING THE SYSTEM PRESSURE
Ejectors with an integrated pressure sensor (SX(M)Pi –xx –xx –PC) monitor the system
pressure in addition to the system vacuum. The pressure level affects the following signals
and parameters:
Signal output H1
Pressure analog value
Process data bits HP1