Schmalz SCPSi-2 User manual

Innovative Vacuum for Automation
EN
SCPSi-2
Eco-Nozzle Technology
Operating instructions
30.30.01.00762

SCHMALZ SCPSI-2
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
IO-Link.............................................................................................................................................. 2-9
Versions ............................................................................................................................................ 2-10
Ejector version PNP or NPN .......................................................................................................... 2-10
Electrical connection ...................................................................................................................... 2-10
Ejector design................................................................................................................................... 2-11
Operating and display elements..................................................................................................... 2-12
3Description of Functions.....................................................................................3-14
Operating modes.............................................................................................................................. 3-14
Control concept for NO ejectors..................................................................................................... 3-16
Control concept for NC ejectors..................................................................................................... 3-16
General functions............................................................................................................................. 3-17
Manual mode.................................................................................................................................. 3-17
Set-up mode................................................................................................................................... 3-18
Monitoring the system vacuum ...................................................................................................... 3-18
Zero-point adjustment of the sensor (calibration) .......................................................................... 3-18
Control function .............................................................................................................................. 3-19
Deactivating the control shutoff function........................................................................................ 3-19
Blow-off modes............................................................................................................................... 3-20
Signal output .................................................................................................................................. 3-21
Selecting the vacuum unit.............................................................................................................. 3-21
Switch-off delay of the H2 component check signal ...................................................................... 3-22
ECO-Mode ..................................................................................................................................... 3-22
PIN for write protection................................................................................................................... 3-23
Write protection with Device Access Locks.................................................................................... 3-23
Reset to factory settings................................................................................................................. 3-24
Counter........................................................................................................................................... 3-24
Voltage monitoring ......................................................................................................................... 3-25
Evaluating the inlet pressure.......................................................................................................... 3-25
Setting the blow-off volume flow .................................................................................................... 3-26
Production setup-profiles................................................................................................................ 3-26
Condition Monitoring [CM].............................................................................................................. 3-27
Monitoring the valve switching frequency ...................................................................................... 3-27
Monitoring the control threshold..................................................................................................... 3-27
Monitoring the evacuation time...................................................................................................... 3-28
Monitoring leakage......................................................................................................................... 3-28
Monitoring the dynamic pressure................................................................................................... 3-28
Evaluating the leakage level .......................................................................................................... 3-29
Measurement of the evacuation time t0.......................................................................................... 3-29
Measurement of the evacuation time t1.......................................................................................... 3-29

SCHMALZ SCPSI-2
Autoset ........................................................................................................................................... 3-29
Energy monitoring [EM]................................................................................................................... 3-30
Percentual air consumption measurement..................................................................................... 3-30
Absolute air consumption measurement........................................................................................ 3-30
Energy consumption measurement ............................................................................................... 3-30
Predictive Maintenance [PM]........................................................................................................... 3-31
Measurement of the leakage.......................................................................................................... 3-31
Measurement of the dynamic pressure.......................................................................................... 3-31
Quality assessment........................................................................................................................ 3-31
Performance calculation................................................................................................................. 3-31
Diagnostic buffer.............................................................................................................................. 3-32
EPC data buffer................................................................................................................................. 3-32
4Operating and Menu Concepts ...........................................................................4-33
Vacuum display ................................................................................................................................ 4-33
Individual functions.......................................................................................................................... 4-33
Supply voltage................................................................................................................................ 4-33
Operating mode display ................................................................................................................. 4-34
Error display................................................................................................................................... 4-34
Main menu......................................................................................................................................... 4-35
Setting the parameters in the main menu...................................................................................... 4-36
Zero-point adjustment (calibration) ................................................................................................ 4-36
Configuration menu ......................................................................................................................... 4-37
Setting the parameters in the configuration menu ......................................................................... 4-39
Entering the PIN............................................................................................................................. 4-39
Executing the “reset to factory settings” function ........................................................................... 4-39
System menu .................................................................................................................................... 4-40
Viewing data in the system menu .................................................................................................. 4-40
Viewing the counters...................................................................................................................... 4-40
Software version............................................................................................................................. 4-41
Serial number................................................................................................................................. 4-41
Article number ................................................................................................................................ 4-41
5Operating Mode....................................................................................................5-42
SIO operating mode ......................................................................................................................... 5-42
Overview......................................................................................................................................... 5-42
Mounting......................................................................................................................................... 5-43
Pneumatic connection.................................................................................................................... 5-43
Electrical connection ...................................................................................................................... 5-44
Pin assignment of the connection plug .......................................................................................... 5-45
Projektieren .................................................................................................................................... 5-46
Start of operations.......................................................................................................................... 5-46
Warnings and errors....................................................................................................................... 5-47
IO-Link mode..................................................................................................................................... 5-48
Overview......................................................................................................................................... 5-48
Mounting......................................................................................................................................... 5-49
Pneumatic connection.................................................................................................................... 5-49
Electrical connection ...................................................................................................................... 5-50
Pin assignment of the connection plug .......................................................................................... 5-51
Project planning.............................................................................................................................. 5-51
Process data .................................................................................................................................. 5-53
Parameter data............................................................................................................................... 5-54
Configuration server....................................................................................................................... 5-54
Start of operations.......................................................................................................................... 5-55
System status light ......................................................................................................................... 5-60
Warnings and errors....................................................................................................................... 5-60

SCHMALZ SCPSI-2
EPC-Values in the Process data.................................................................................................... 5-61
6Maintenance..........................................................................................................6-62
General maintenance....................................................................................................................... 6-62
Exterior soiling................................................................................................................................ 6-62
Silencer........................................................................................................................................... 6-62
press-in Screens ............................................................................................................................ 6-62
Warranty, spare parts and wearing parts ...................................................................................... 6-62
Spare and wearing parts ................................................................................................................ 6-63
Troubleshooting ............................................................................................................................... 6-63
Accessories ...................................................................................................................................... 6-63
7Technical Data......................................................................................................7-64
Electrical parameters....................................................................................................................... 7-64
Display parameters .......................................................................................................................... 7-65
Mechanical data................................................................................................................................ 7-65
General parameters ....................................................................................................................... 7-65
Materials used................................................................................................................................ 7-66
Mechanical parameters.................................................................................................................. 7-66
Dimensions..................................................................................................................................... 7-67
Pneumatic circuit diagrams............................................................................................................ 7-68
Overview of display symbols.......................................................................................................... 7-69
Factory settings................................................................................................................................ 7-71
8Conformity Declaration........................................................................................8-72

SCHMALZ SCPSI-2
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 connec-
tions or suction pads).
Serious injuries could occur as a result. Eyes can be sucked in.
Compressed air can cause closed containers to explode. A vacuum can cause closed
containers to implode.
The ejector may only be operated with a silencer. Never look into the exhaust air jet of
the silencer.
The ejector emits noise. We recommend wearing ear protection.
This device is not intended for use with hazardous dust, oil mist, vapors or aerosols,
etc. If drawn in, these materials will enter the exhaust air and may result in poisoning.
Use only the connections, mounting holes and attachment materials that have been
provided.
Carry out mounting and removal only when the device is in an idle, depressurized state.
No person may sit or stand in the area in which the load is to be transported.
No person may sit or stand in the danger zone while the machine or system is in auto-
matic mode.
Components may be installed by trained specialist personnel only.

SCHMALZ SCPSI-2
1-6
Specialist personnel must be familiar with current safety rules and requirements. For
example, these apply to the use of components such as solenoid valves and pressure
switches as well as to controllers used in devices, machines and systems.
Specialist personnel must also be familiar with the system’s control concept. In particu-
lar, they must be familiar with the system’s redundant control components and feed-
back signals.
INTENDED USE
The ejector is designed to generate a vacuum for gripping and transporting objects when
used in conjunction with suction pads. Neutral gases in accordance with EN 983 are ap-
proved as evacuation media. Neutral gases include air, nitrogen and inert gases (e.g. ar-
gon, helium and neon). Aggressive gases or media such as acids, acid fumes, bases, bio-
cides, disinfectants or detergents are not permitted.
The ejector is not suitable for transporting or sucking through liquids or bulk ma-
terial such as granulates.
Personal injury or damage to the ejector may occur.

SCHMALZ SCPSI-2
1-7
INSTALLATION AND OPERATION
For safe installation and trouble-free operation, please observe and comply with the follo-
wing 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 ejector will damage the “tested” labels. This voids the warranty.
Connection symbols and labels are located on the ejector.
These must be observed.
Only the intended connections may be used.
Pneumatic and electrical line connections must be securely connected and attached to
the ejector.
The ejector may be installed in any position.
If these instructions are not observed, malfunctions, material damage and serious injury
–including fatal injury –may result.
If the ejector is no longer operative, the components must be disposed of in an ecologi-
cally sound manner.

SCHMALZ SCPSI-2
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 ver-
sion, 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.
An integrated sensor records the vacuum generated by the Venturi nozzle. This is evalua-
ted by an electronics system and appears on the display. The measured value serves as
the basis for the air saving function, switching the output and the many analysis functions
of the energy process control system.
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 swit-
ching point H1-h1, the Venturi nozzle is switched on again.
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.
The supply voltage’s maximum permitted upper limit of approx. 26.4 V is also monitored.
The display will indicate any value in excess of this limit.

SCHMALZ SCPSI-2
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.
With the externally controlled automatic blow-off, the “Blow-off” valve is activated for a set
amount of time once the “Blow-off” signal input is received.

The ejector also has a manual mode. In this mode, suction and blow-off can be
controlled using the keys on the ejector’s foil keypad. See the “Manual mode”
section for more details.
IO-LINK
The ejector can be operated in IO-Link mode to enable intelligent communication with a
controller.
The ejector’s parameters can be set remotely using IO-Link mode. The energy and pro-
cess control (EPC) function is also available in IO-Link mode.
Energy and process control (EPC) is divided into 3 modules:
Condition monitoring (CM): Condition monitoring to increase system availability
Energy monitoring (EM): Energy monitoring to optimize the vacuum system’s energy
consumption
Predictive maintenance (PM): Predictive maintenance to increase the performance and
quality of the gripper systems

SCHMALZ SCPSI-2
2-10
VERSIONS
Each ejector has a specific item designation (e.g. SCPSi-2-07-G2-NO-M12).
The item designation can be broken down as follows:
Type
Perfomance
class
Pneumatic
connection
Idle position
Electrical
connection
SCPSi
2-07
2-09
2-14
G2
(2x G1/8“)
S2 (8/6mm)
S4 (6/4mm)
NO
Normally open
NC
Normally closed
M12
1xM12, 5-pin
The most important components are described below.
EJECTOR VERSION PNP OR NPN
The behavior of the ejector’s electrical inputs and output can be adjusted on the device
and therefore does not depend on the version.
The ejectors are factory set to PNP.
ELECTRICAL CONNECTION
The electrical connection is established using a 5-pin M12 plug that supplies the ejector
with voltage, and contains the two input signals and the output signal. The inputs and out-
put are not electrically isolated from one another.

SCHMALZ SCPSI-2
2-11
EJECTOR DESIGN
3
4
1 5
6
8
7
9
10
2
10
Only screw unions with cylindrical G-threads can be used at pos. 4 and pos. 8.
We recommend using washers on the mounting holes.
Do not look into the exhaust outlet (compressed air) during operation
Position
Description
Max. tightening
torque
1
Process state display: suction / blow-off / vacuum value
2
Controls
3
Blow-off valve screw
4
G1/8" vacuum connection (label: 2 [V])
4 Nm
5
M12 electrical connection
Hand-tight
6
Controller
7
Mounting holes
2 Nm
8
Compressed air connection
G1/8" in H version (label: 1 [P])
4 Nm
9
Silencer cover
0,5 Nm
10
Exhaust outlet (label 3 and Silencer cover)

SCHMALZ SCPSI-2
2-12
OPERATING AND DISPLAY ELEMENTS
The 3 keys, the three-digit display and 4 additional LEDs ensure simple operation of the
ejector.
Position
Description
71 5
6 3 2 4
1
Display
2
LEDs for threshold values H1/H2
3
MENU button
4
UP button
5
DOWN button
6
LED Process state „Suction“
7
LED Process state „Blow-off“
LEDS PROCESS STATE
The “Suction” and “Blow-off” process states are each assigned an LED.
Process state LEDs
Ejector status
LEDs are both off
No suction on ejector
Suction LED
is continuously lit
Ejector is in suction state or being con-
trolled
Blow-off LED
is continuously lit
Ejector blows off

SCHMALZ SCPSI-2
2-13
LEDS FOR THRESHOLD VALUES H1/H2
During conventional suctions cycles, the LEDs shows the current level of the system va-
cuum relative to the switching points H1 and H2. Their display behavior is independent of
the switching functions or assignment of the output; it is also independent of 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)

SCHMALZ SCPSI-2
3-14
3 DESCRIPTION OF FUNCTIONS
OPERATING MODES
The ejectors are differentiated according to their start position when in the idle state: NO
(normally open) and NC (normally closed).
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 use the keys on the ejector to switch to manu-
al 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

SCHMALZ SCPSI-2
3-15
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:
[bLo = J-t]
Blow-off ON
NC, NO:
IN2 = on
M A N U A L M O D E
Blow-off
Suction ON
NC : IN1 = on
NO : IN1 = off
Suction OFF
NC : IN1 = off
NO : IN1 = on
Blow-off OFF
NC, NO:
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
Venturi-
nozzle
active
Venturi-
nozzle
inactive
> 3 s
> 3 s
IO-Link
> 3s > 2 s
No
button
> 2 min
Change in
External
signal

SCHMALZ SCPSI-2
3-16
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

SCHMALZ SCPSI-2
3-17
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.
In manual mode, the “Suction” and “Blow-off” ejector functions can be controlled indepen-
dently 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.
During activation, [-M-] will appear.
When manual mode is activated, the current process state will initially be maintained.
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 acti-
vated 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
Press the key to exit manual mode.
The operating mode will also be exited if the status of the external signal inputs changes.
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).

SCHMALZ SCPSI-2
3-18
SET-UP MODE
Similar to manual mode, set-up mode can be used to locate and rectify leaks in the vacu-
um 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.
Setup mode is switched on and off using the process data output (PDO). The suction and
blow-off process bits always have priority.

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 va-
cuum 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 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.
ZERO-POINT ADJUSTMENT OF THE SENSOR (CALIBRATION)
Because the production conditions for the internally integrated sensor can vary, we
recommend calibrating the sensor once it is installed in the ejector.
The pressure circuit of the system must be ventilated to ambient pressure before a zero-
point adjustment can be made to the pressure sensor.

The zero point can only be shifted within a range of 3% from the end value of
the measurement range.

If the permissible limit of 3% is exceeded, the [E3] error code is shown in the
display.
The function for zero-point adjustment of the sensor is performed in the basic menu under
[CAL] or using IO-Link.

SCHMALZ SCPSI-2
3-19
CONTROL FUNCTION
With this function, the ejector allows you to save compressed air or prevent a too powerful
vacuum from being generated. Vacuum generation is interrupted once the configured
threshold value H1 is reached. If leakage causes the vacuum to fall below the hysteresis
threshold H1-h1, vacuum generation resumes.
The following operating modes can be set for the control function in the configuration
menu under the [ctr] menu item or via IO-Link.
NO CONTROL (CONTINUOUS SUCTION)
The ejector produces continuous suction with maximum power. This setting is recom-
mended for very porous workpieces, which would otherwise cause the vacuum generator
to switch on and off continually due to the high rate of leakage.
The control function setting for this operating mode is [oFF].

This setting ([ctr = oFF]) is only possible when control shutoff is deactivated
[dCS = oFF].
CONTROL
The ejector switches off the vacuum generator when the threshold H1 is reached and swit-
ches it back on when the vacuum falls below the threshold H1-h1. This setting is particu-
larly recommended for suction-tight workpieces.
The control function setting for this operating mode is [on].
CONTROL WITH LEAK MONITORING
This operating mode is the same as the previous mode, with the addition that the leakage
rate within the system is measured and compared to the configurable limit value [-L-]. If
the actual leakage rate exceeds the limit value more than twice in succession, the control
function is deactivated and the ejector switches to continuous suction.
In this mode, the control function should be set to [onS]

When the [onS] function is activated, [-L-] is activated in the configuration
menu.
DEACTIVATING THE CONTROL SHUTOFF FUNCTION
With this function, the automatic control shutoff caused by condition monitoring functions
can be deactivated.
The function can be set in the configuration menu under the [dCS] menu item or via IO-
Link.

SCHMALZ SCPSI-2
3-20
If the function [dCS = oFF] is selected, the ejector switches to continuous suction mode if
the leakage rate and the valve switching frequency are too high.
With the [dCS = on] setting, continuous suction is deactivated and the ejector continues
in control mode despite high leakage and a control frequency greater than 6/3 s.
If the control shutoff function is deactivated [dCS = on], the suction valve may
be switched very frequently.
This can destroy the ejector.

The setting [dCS = on] is only possible when the control function
[ctr = on] or [ctr = onS] is set.

In cases of undervoltage or power failure, the ejector switches to continuous
suction according to the particular ejector version (NO/NC/IMP), even if conti-
nuous suction was deactivated with the [dCS = on] setting.
BLOW-OFF MODES
This function is used to switch among the three blow-off modes.
The function can be set in the configuration menu under the [bLo] menu item or via IO-
Link.
EXTERNALLY CONTROLLED BLOW-OFF
The blow-off valve is controlled directly via the blow-off signal input. The ejector switches
to blow-off mode for as long as the signal is present.
The blow-off function setting for this operating mode is [-E-].
INTERNALLY TIME-CONTROLLED BLOW-OFF
The blow-off valve is controlled automatically for the time period [tbL] after the ejector
exits suction mode. This function makes it possible to save an output on the controller.
The blow-off function setting for this operating mode is [I-t].

The “Blow-off” mode can still be activated in [I-t] mode using the “Blow-off” sig-
nal input.
EXTERNALLY TIME-CONTROLLED BLOW-OFF
The blow-off pulse is controlled externally via the blow-off input. The blow-off valve is con-
trolled for the configured time [tbL]. A longer input signal does not increase the blow-off
duration.
The blow-off function setting for this operating mode is [E-t].