Schmalz SCPS-L HV 3-20 NC M12-5 PNP Compact ejector nozzle and highest suction capacity Operating Instructions
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Compact Ejector SCPS-L
Operating instructions
WWW.SCHMALZ.COM
EN-US · 30.30.01.02636 · 01 · 10/21
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 errors.
Published by
© J. Schmalz GmbH, 10/21
This document is protected by copyright. J. Schmalz GmbH retains the rights established thereby. Reproduction 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 written agreement from J. Schmalz GmbH.
Contact
J. Schmalz GmbH
Johannes-Schmalz-Str. 1
72293 Glatten, Germany
T: +49 7443 2403-0 [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
Contents
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Contents
4 / 40 EN-US · 30.30.01.02636 · 01 · 10/21
Important Information
1 Important Information
1.1 Note on Using this Document
J. Schmalz GmbH is generally referred to as Schmalz in these Operating instructions.
These Operating instructions contain 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 Operating instructions describe the product at the time of delivery by Schmalz.
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 accessible to personnel at all times.
3. Pass on the technical documentation to subsequent users.
ð Failure to follow the instructions in these Operating instructions may result in injuries!
ð Schmalz is not liable for damage or malfunctions that result from failure to heed these instructions.
If you still have questions after reading the technical documentation, contact Schmalz Service at: www.schmalz.com/services
1.3 Type Plate
The type plate (1) is permanently attached to the ejector at the location shown and must always be clearly legible.
The type plate contains the following information:
• Pneumatic symbol
• QR code
• Part sales designation/type
• Part number
• Manufacturing date
• Serial number
• Permitted pressure range
• Operating voltage
1
1.4 Warnings in This Document
Warnings warn against hazards that may occur when handling the product. This document contains three levels of danger that you can recognize by the signal word.
Signal word Meaning
WARNING
CAUTION
NOTE
Indicates a medium-risk hazard that could result in death or serious injury if not avoided.
Indicates a low-risk hazard that could result in minor or moderate injury if not avoided.
Indicates a danger that leads to property damage.
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Important Information
1.5 Symbol
This symbol indicates useful and important information.
ü This symbol represents a prerequisite that must be met prior to an operational step.
4 This symbol represents an action to be performed.
ð This 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.
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Fundamental Safety Instructions
2 Fundamental Safety Instructions
2.1 Safety
The ejector emits noise due to its use of compressed air.
WARNING
Noise pollution due to the escape of compressed air
Hearing damage!
4 Wear ear protectors.
4 The ejector must only be operated with a silencer.
WARNING
Uncontrolled movements of system components or falling of objects caused by incorrect activation and switching of the Ejector while persons are in the plant
(safety door opened and actuator circuit switched off)
Serious injury
4 Ensure that the valves and ejectors are enabled via the actuator voltage by installing a potential separation between the sensor and actuator voltage.
4 Wear the required personal protective equipment (PPE) when working in the danger zone.
CAUTION
Depending on the purity of the ambient air, the exhaust air can contain particles, which escape from the exhaust air outlet at high speed.
Eye injuries
4 Do not look into the exhaust air flow
4 Wear eye protection
2.2 Intended Use
The ejector is designed to generate a vacuum for gripping and transporting objects when used in conjunction with suction cups. The ejector is operated with discrete control signals.
Neutral gases are approved as evacuation media. Neutral gases include air, nitrogen and inert gases (e.g.
argon, xenon and neon).
The product is built in accordance with the latest standards of technology and is delivered in a safe operating condition; however, hazards may arise during use.
CAUTION
Failure to follow the user instructions
There is a risk of injury.
4 Before using/connecting the product, read and follow the operating instructions.
The product is intended for industrial use.
Intended use includes observing the technical data and the installation and operating instructions in this manual.
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Fundamental Safety Instructions
2.3 Non-Intended Use
WARNING
Extraction of hazardous media, liquids or bulk material
Personal injury or damage to property!
4 Do not extract harmful media such as dust, oil mists, vapors, aerosols etc.
4 Do not extract aggressive gases or media such as acids, acid fumes, bases, biocides, disinfectants or detergents.
4 Do not extract liquids or bulk materials, e.g. granulates.
Schmalz accepts no liability for damages caused by non-intended usage of the ejector.
In particular, the following are considered non-intended use:
• Filling pressurized containers, driving cylinders, valves or other pressure-operated functional elements
• In potentially explosive atmospheres
• Use in medical applications
• Lifting people or animals
• Evacuation of objects that are in danger of imploding
• Ballistic applications
2.4 Personnel Qualifications
Unqualified personnel cannot recognize dangers and are therefore exposed to higher risks!
1. Task only qualified personnel to perform the tasks described in these Operating instructions.
2. The product must be operated only by persons who have undergone appropriate training.
These Operating instructions are intended for fitters who are trained in handling the product and who can operate and install it.
2.5 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.
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Product Description
3 Product Description
3.1 Ejector Designation
The breakdown of the item designation (e.g. SCPSi-L HF 3-16 NC RD M12-5 PNP) is as follows:
Property
Type of ejector
Shape
Nozzle size
Controller
Control 1)
Electrical connection
Signal type for signal inputs and outputs
Variants
SCPSi-L, version with display
SCPS-L, version with bar display
HF for “High Flow”
HV for “High Vacuum”
2-07 / 2-09 / 2-13 / 2-16 / 3-13 / 3-16 / 3-18 2) / 3-20
NO for “normally open”
NC for “normally closed”
RD for “with digital control”
No specification for “without control”
M12-5 connector
NPN
PNP
1) In the case of ejectors without the RD designation (digital control), vacuum control and the associated functions are not available.
2) Black HF edition
3.2 Ejector Structure
3
4
5 7
2
8
1
3
5
7
1
1/2" vacuum connection
Display and control element
1/4" compressed air connection
Silencer with thread and snap closure
6
2
4
6
8
Mounting hole (2x)
M12 electrical connection
Ejector nozzle (covered)
Exhaust outlet
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Product Description
3.3 Display and Operating Element in Detail
Simple ejector operation is ensured with 3 buttons, the bar display and 4 LEDs for status information. The current system vacuum is always displayed in the 8-digit LED bar display.
8 1 2 3 4
7 6 5
1 MENU BUTTON
3 H1 limit value LED
5 UP BUTTON
7 LED process state “suction”
2 LED bar display
4 DOWN BUTTON
6 H2 limit value LED
8 LED process state “blow off”
Definition of the LED indicators
The “suction” and “blow off” process states are each assigned an LED.
Display
LEDs are both off
Ejector state
No suction from ejector
LED for the suction function is constantly lit Ejector sucks or is under control (RD variant only)
LED for the blow off function is constantly lit
Ejector blowing off
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Product Description
Meaning of the Vacuum Limit Value LEDs
The LEDs for the vacuum limit values H1 and H2 indicate the current level of the system vacuum relative to the configured limit values. The display is independent of the switching function and the assignment of the output.
Display
LEDs both off
Ejector state
Rising vacuum:
Vacuum < H2
Falling vacuum:
Vacuum < (H2-h2)
H2 LED lit steadily
Both LEDs lit steadily
Rising vacuum:
Vacuum > H2 and < H1
Falling vacuum:
Vacuum > (H2-h2) and < (H1-h1)
Rising vacuum:
Vacuum > H1
Falling vacuum:
Vacuum > (H1-h1)
Additional Display Functions on the LED Bar Display
The current system vacuum is always displayed in the 8-digit LED bar display.
LED bar display Meaning
Max. LED lights up briefly Supply pressure present, otherwise no LED is active
Entire LED bar lights up Max. LED flashes rapidly Vacuum > permitted range
Max. LED flashes rapidly Voltage supply > permitted range
10% LED flashes rapidly Vacuum < permitted range (for example, during blow off)
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Technical Data
4 Technical Data
4.1 General Parameters
Parameter Symbol
Working temperature
Storage temperature
Humidity
Degree of protection
Operating pressure (flow pressure)
Max. vacuum
Precision of vacuum sensor
Operating medium
T amb
T
Sto
H rel
---
P p
--min.
0
-10
10
---
3
Limit value typ.
---
---
---
---
4.2
max.
50
60
90
IP65
6
-----
Unit
° C
° C
---
---
% r.h.
Free from condensation
----bar ---
-910 mbar
Comment
---
± 3% FS (full scale)
Air or neutral gas, 5 µm filtered, with or without oil, class 3-3-3 compressed air quality in acc. with ISO 8573-1
4.2 Electrical Parameters
Parameter
Supply voltage
Power consumption from U
S/A
2) with NO variant
I
U
SA
S/A
Power consumption from U
S/A
2) with NC variant
I
S/A
Voltage of signal output (PNP) U
OH
Voltage of signal output
(NPN)
U
OL
I
OH
Power consumption of signal output (PNP)
Power consumption of signal output (NPN)
Voltage of signal input (PNP)
I
OL
U
IH
Symbol min.
22.8
—
Limit values typ.
24
50 4) max.
26.4
120
—
U
0
S/SA
—
—
15
-2
40
—
—
—
—
—
4) 70
V
2
S/SA
140
-140
U
A/SA
Unit
V DC mA mA
V
DC
V
DC mA mA
Comment
PELV 1)
U
S/A
= 24.0 V
U
S/A
= 24.0 V
I
OH
< 140 mA
I
OL
< 140 mA
Short-circuit-proof 3)
Short-circuit-proof 3)
Voltage of signal input (NPN) U
IL
Current of signal input (PNP) I
IH
Current of signal input (NPN) I
IL
Reaction time of signal inputs t
I
Reaction time of signal outputs t
O
0
—
—
—
1
—
5
-5
3
—
9
—
—
—
200
V
V
DC
DC mA mA ms ms
In reference to Gnd
A/
SA
In reference to U
—
—
—
Adjustable
A/SA
1) The power supply must correspond to the regulations in accordance with EN60204 (protected extra-low voltage). The signal inputs and outputs are all protected against reverse polarity.
2) Plus the output currents
3) The signal output is protected against short circuits. However, the signal output is not protected against overloading. Constant load currents > 0.15 A may lead to impermissible heating and therefore the destruction of the ejector.
4) Mean value
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Technical Data
4.3 Factory Settings
Parameter
Limit value H1
Hysteresis value h1
Control (RD variant only)
Limit value H2
Hysteresis value h2
Permanent suction
Blow off function
Vacuum unit
Signal output
4.4 Performance Data
Type
Nozzle size [mm]
Max. vacuum 1 [%]
Suction rate 1 [l/min]
Air consumption 1 (suction) [l/min]
Sound level 1 , unobstructed suction
[dBA]
Sound level 1 , suction [dBA]
Max. blow off capacity 1 [l/min]
Weight [kg]
Type
Nozzle size [mm]
Max. vacuum 1 [%]
Suction rate 1 [l/min]
Air consumption 1 (suction) [l/min]
Sound level 1 , unobstructed suction
[dBA]
Sound level 1 , suction [dBA]
Max. blow off capacity 1 [l/min]
Weight [kg]
1) at 4.5 bar
2) Black HF edition
Value of the factory setting
Max.
RD variant: 750 mbar
Max.
RD variant: 150 mbar
Activated
550 mbar
10 mbar
Deactivated
Externally controlled blow off
Vacuum unit in mbar
“Normally open” contact = no
SCPS-L-
2-07 HV
0.7
37
22
74
85
SCPS-L-
2-09 HV
0.9
70
45
77
SCPS-L-
2-13 HF
1.3
61
145
71
76
SCPS-L-
2-16 HV
1.6
90
129
98
77
SCPS-L-
3-13 HF
1.3
61
232
71
69
61
62
130
0.5
SCPS-L-
3-16 HV
1.6
90
227
102
80
72
130
0.5
SCPS-L-
3-18 HF 2)
1.8
65
320
130
69
61
63
SCPS-L-
3-20 HV
2.0
90
323
172
81
77
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Technical Data
4.5 Dimensions
B
17.6
B1
37.5
G1
1/4" internal thread
G2
1/2" internal thread
H
95.75
G3
M12x1 external thread, 5pin
H1
109
H3
56.5
Y1
35
G4
M4 internal thread
L
Max. 230
All specifications are in mm
L3
21
Y2
28
L4
11.5
X1
40
D
29
X2
28 d
4.5
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4.6 Pneumatic Circuit Plans
SCPS-L...NO... RD SCPS-L...NC...RD
Technical Data
SCPS-L...NO...
SCPS-L...NC...
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General Description of Functions
5 General Description of Functions
5.1 Picking up the Workpiece (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.
The venturi nozzle on the ejector is activated and deactivated using the suction command:
• In the NO (normally open) variant, the venturi nozzle is deactivated when the suction signal is received.
• In the NC (normally closed) variant, the venturi nozzle is activated when the suction signal is received.
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 switching the output. The vacuum level is shown in the bar display.
The RD ejector variant has an integrated air saving function and automatically regulates the vacuum in suction mode:
• The electronics switch off the venturi nozzle as soon as the set vacuum limit value H1 is reached.
• When objects with airtight surfaces are picked up, the integrated non-return valve prevents the vacuum from dropping.
• If the system vacuum drops below the limit value H1-h1 due to leakages, the venturi nozzle is switched back on.
If small volumes are to be evacuated, the set switching point H1 may be exceeded considerably before the vacuum is switched off. This system behavior does not constitute an error.
5.2 Depositing the Workpiece/Part (Blowing Off)
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 to be deposited quickly.
The ejector provides two blow off modes for selection:
• Externally controlled blow off: The “blow off” valve is controlled directly by the “blow off” signal input. The ejector switches to blow off mode for as long as the signal is present.
• Internally time-controlled blow off: The “blow off” valve is automatically activated for the configured time period as soon as the ejector leaves “suction” mode. This function makes it possible to save an output on the controller.
4 The internal time-controlled blow off is activated by setting a value greater than zero for the blow off time.
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.
5.3 Operating Modes
If the ejector is connected to the supply voltage, it is in automatic mode and ready for operation. This is the normal operating mode, in which the ejector is operated by the system controller.
In addition to automatic operation, you can also use the keys on the ejector to change the operating state and switch to manual mode.
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General Description of Functions
The ejector is always parameterized in automatic mode.
5.3.1 Operation and Settings
The three keys on the foil keypad are used for operation and setting the parameters. If no parameters are set, the ejector is in display mode. The current vacuum is displayed.
If settings are changed, undefined states of the system may occur for a short time (for approx. 50 ms).
5.3.2 Manual Operating Mode
WARNING
Through an external signal, manual operation is exited, external signals are evaluated and system parts move.
Personal injury or damage to property due to collisions
4 Ensure that the danger zone of the system is clear of people during operation.
4 Wear the required personal protective equipment (PPE) when working in the danger zone.
WARNING
Falling objects due to incorrect operation in manual mode
Risk of injury
4 Higher level of attention
4 Ensure that there are no persons within the danger zones of the machine/system
In manual mode, a higher level of attention is advisable because incorrect operation may cause gripped parts to fall, resulting in injuries.
In manual mode, the “suction” 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 the Operating Mode
Press and hold the or button for more than 3 seconds.
Manual suction
The button activates “suction” on the ejector.
Press the or button to exit the “suction” operating state again.
When the air saving function is switched on, it is also active in the “Manual Operation” operating mode.
Manual blow off
The button activates “blow off” on the ejector for as long as the button is pressed. The H1 and H2
LEDs light up simultaneously.
Deactivating the Operating Mode
Using the button or through an external state change by signal inputs.
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General Description of Functions
The valve protection function is not active in manual mode.
5.4 Viewing and Setting Parameters
The following ejector parameters can be set depending on the ejector variant:
Standard Ejector variant
Vacuum limit value H1 for the control
Vacuum limit value H2 for the signal output
Blow off duration for time-controlled blow off
RD
The hystereses associated with the vacuum limit values are fixed. The hysteresis h2 is always 10 mbar.
The following tables show the various setting options with the corresponding parameter sets. A parameter set is selected using the ejector buttons and is described in the next section.
Parameter sets for the RD ejector variant:
For H1, the hysteresis h1 is always 20% of the H1 value.
LED bar display
0%
10%
20%
30%
40%
55%
65%
75%
Max.
H1
—
—
200 mbar
300 mbar
400 mbar h1
—
—
40 mbar
60 mbar
80 mbar
550 mbar
650 mbar
750 mbar
110 mbar
130/75 mbar 1)
150/75 mbar
Control function deactivated
1)
H2
—
100 mbar
200 mbar
300 mbar
400 mbar
550 mbar
650 mbar
750 mbar
— h2
—
10 mbar
10 mbar
10 mbar
10 mbar
10 mbar
10 mbar
10 mbar
—
Blow off time
External
20 ms
50 ms
100 ms
250 ms
500 ms
750 ms
1000 ms
1500 ms
1) If a value > (H1-h1) is selected for H2, the hysteresis h1 is dynamically adjusted so that (H1-h1) is 25 mbar above H2.
With manual setting, the value set for H1 must always be greater than the value set for H2. Only settings that meet this specification can be made.
Parameter sets for the standard ejector variant
LED bar display
0%
10%
20%
30%
40%
55%
65%
75%
Max.
H1
—
Max. mbar
Max. mbar
Max. mbar
Max. mbar
Max. mbar
Max. mbar
Max. mbar
H2
—
100 mbar
200 mbar
300 mbar
400 mbar
550 mbar
650 mbar
750 mbar
— h2
—
10 mbar
10 mbar
10 mbar
10 mbar
10 mbar
10 mbar
10 mbar
—
Blow off time
External
20 ms
50 ms
100 ms
250 ms
500 ms
750 ms
1000 ms
1500 ms
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General Description of Functions
Setting Parameters
The LEDs assigned to the parameters flash to indicate which value is currently being displayed or changed.
Operating structure overview
1. Press the button to select the parameter to be changed:
Press once => first parameter “Vacuum limit value H1”
Press twice => second parameter “Vacuum limit value H2”
Press three times => third parameter “Blow off time”
ð The LED for the selected parameter flashes.
2. Change the selected parameter by pressing the or button.
ð The bar display LED increases or decreases.
3. Press the button to leave adjustment mode.
ð The value will flash briefly to indicate that a changed parameter is being applied.
5.5 Locking the Keypad
ü The ejector is not in any menu.
4 Pressing the and keys at the same time locks the keys.
4 Pressing both keys again unlocks the keypad.
5.6 Vacuum Monitoring
The ejector has an integrated sensor for monitoring the current system vacuum. The vacuum level provides information about the process and has an effect on the following signals and parameters:
• The limit value LED H1
• The limit value LED H2
• The signal output H2
5.7 Signal Output
The ejector has a signal output.
The signal output is a normally open (NO) contact and cannot be changed.
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General Description of Functions
The signal output is switched on or off when the system vacuum is higher or lower than the relevant limit value.
5.8 Control function (only with RD variant)
The ejector allows you to conserve compressed air or prevent an excessive vacuum from being generated.
Vacuum generation is interrupted when the set limit value H1 is reached. If leakage causes the vacuum to fall below the hysteresis limit value (H1-h1), vacuum generation resumes.
The control function can be deactivated by setting the limit value for H1 to “Max.”
5.9 Supply Voltage Display
In operating modes in which no LEDs are activated, the “Max” LED lights up briefly. This indicates a supply voltage.
5.10 Signal Type
The signal type, or the ejector switching behavior (PNP or NPN) of the electrical signal inputs and the signal output, is permanently set on the device and is therefore dependent on the ejector version.
5.11 Control Concept for NO Ejectors
“Suction” [IN1]
“Blow off” [IN2]
“Suction” state
0 bar
-p p
“Blow off” state
0 bar
1
0
1
0
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General Description of Functions
5.12 Control Concept for NC Ejectors
“Suction” [IN1]
“Blow off” [IN2]
“Suction” state
1
0
1
0
-p
0 bar p
“Blow off” state
0 bar
5.13 Vacuum unit
The vacuum level in the LED bar is shown as a percentage of the maximum possible vacuum.
If the vacuum is outside the permitted range, the LED next to this bar flashes rapidly. That means the LED flashes “10%” when overpressure is applied.
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Transport and Storage
6 Transport and Storage
6.1 Checking the Delivery
The scope of delivery can be found in the order confirmation. The weights and dimensions are listed in the delivery notes.
1. Compare the entire delivery with the supplied delivery notes to make sure nothing is missing.
2. Damage caused by defective packaging or occurring in transit must be reported immediately to the carrier and J. Schmalz GmbH.
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Installation
7 Installation
7.1 Installation Instructions
CAUTION
Improper installation or maintenance
Personal injury or damage to property
4 During installation and maintenance, make sure that the product is disconnected and depressurized and that it cannot be switched on again without authorization.
For safe installation, the following instructions must be observed:
• Use only the connectors, mounting holes and attachment materials that have been provided.
• Mounting and removal must be performed only when the device is unpressurized and disconnected from the mains.
• Pneumatic and electrical line connections must be securely connected and attached to the product.
7.2 Mounting
The ejector may be installed in any position.
There are two 4.3 mm mounting holes for mounting the ejector.
When mounting with fastening screws, use M4 washers (2 Nm max. tightening torque).
For the start of operations, the ejector must be connected to the controller via the connection plug with a connection cable. The compressed air required to generate the vacuum is connected via the compressed air connection. The compressed air supply must be supplied by the higher-level machine.
The vacuum circuit is connected to the vacuum connection.
The installation process is described and explained in detail below.
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Installation
7.3 Pneumatic Connection
CAUTION
Compressed air or vacuum in direct contact with the eye
Severe eye injury
4 Wear eye protection
4 Do not look into compressed air openings
4 Do not look into the silencer air stream
4 Do not look into vacuum openings, e.g. suction cups
CAUTION
Noise pollution due to incorrect installation of the pressure and vacuum connections
Hearing damage
4 Correct installation.
4 Wear ear protectors.
7.3.1 Connecting the Compressed Air and Vacuum
1
1 Compressed air connection
2
2 Vacuum connection
The 1/4" thread compressed air connection is marked with the number 1 on the ejector.
4 Connect the compressed air hose. The max. tightening torque is 4 Nm.
The 1/2" thread vacuum connection is marked with the number 2 on the ejector.
4 Connect the vacuum hose. The max. tightening torque is 4 Nm.
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Installation
7.3.2 Instructions for the Pneumatic Connection
Use only screw unions with cylindrical G-threads for the compressed air and vacuum connection!
To ensure problem-free operation and a long service life of the ejector, only use adequately maintained compressed air and consider the following requirements:
• Use of air or neutral gas in accordance with EN 983, filtered 5 μm, oiled or unoiled.
• Dirt particles or foreign bodies in the ejector connections, hoses or pipelines can lead to partial or complete ejector malfunction.
1. Shorten the hoses and pipelines as much as possible.
2. Keep hose lines free of bends and crimps.
3. Only use a hose or pipe with the recommended internal diameter to connect the ejector, otherwise use the next largest diameter.
- On the compressed air side, ensure that the internal diameter has the dimensions required for the ejector to achieve its performance data.
- On the vacuum side, ensure that the internal diameters have the necessary dimensions for preventing high flow resistance. If the selected internal diameter is too small, the flow resistance and the evacuation times increase and the blow off times are extended.
The following table shows the recommended line cross-sections (internal diameter):
Performance class
SCPS-L 2-07
SCPS-L 2-09
SCPS-L 2-13
SCPS-L 2-16
SCPS-L 3-13
SCPS-L 3-16
SCPS-L 3-18 2)
SCPS-L 3-20
6
6
6
6
6
4
4
Line cross-section (internal diameter) in mm 1) pressure side
4
Vacuum side
4
6
9
9
12
11
14
12
1) Based on a maximum hose length of 2 m.
2) Black edition
4 For longer hose lengths, the cross-sections must also be larger.
7.4 Electrical connection
WARNING
Electric shock
Risk of injury
4 Operate the product using a power supply unit with protected extra-low voltage
(PELV).
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Installation
WARNING
By activating/deactivating the product, output signals lead to an action in the production process!
Personal injury
4 Avoid possible danger zone.
4 Remain vigilant.
NOTE
Incorrect power supply
Destruction of the integrated electronics
4 Operate the product using a power supply unit with protected extra-low voltage
(PELV).
4 The system must incorporate safe electrical cut-off of the power supply in compliance with EN60204.
4 Do not connect or disconnect the connector under tension and/or when voltage is applied.
NOTE
Power load too high
Destruction of the vacuum switch, as there is no protection against overloading!
4 Prevent constant load currents > 0.1 A.
The electrical connection is established using a 5-pin M12 connector that supplies the vacuum switch with voltage, and contains the two input signals and the output signal. The inputs and outputs are not electrically isolated from one another.
The ejector can:
• be connected directly to the controller, for example, using connection cable part no. 21.04.05.00080, or
• use an IN/OUT box.
The maximum permitted cable length for the supply voltage, the signal inputs and the signal output is
30 m.
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Establish the ejector’s electrical connection using plug connector 1 as shown in the figure.
Installation
1
1 Electrical connection plug, M12, 5-pin
ü Prepare a connection cable with an M12 5-pin connector (supplied by the customer).
4 Attach the connection cable to the electrical connection (1) on the ejector (max. tightening torque = hand-tight).
7.4.1 PIN Assignment
PIN assignment, 5-pin M12 connector
M12 connector PIN
1
2
3
4
Wire color 1)
Brown
White
Blue
Black
Symbol Function
U
S/A
IN1
GND
S/A
OUT
IN2
Supply voltage for sensors/actuators
“Suction” signal input
Ground for sensors/actuators
“Part Present” check signal output (H2/ h2)
“Blow off” signal input 5 Gray
1) When using Schmalz connection cable part no. 21.04.05.00080
7.5 Process Data
During operation of the ejector, all input and output signals are connected to a controller, either directly or using intelligent terminal boxes.
For this purpose, not only the supply voltage but also two input signals and one output signal should be connected to allow the ejector to communicate with the controller.
The basic ejector functions such as suction, blow off and feedback are used with these signals.
In detail, they are:
Process data INPUT
Signal
0
Symbol
OUT 1
Parameter
Vacuum limit value H2 (“Part
Present” check)
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Installation
Process data OUTPUT
Signal
0
1
7.6 Start of Operations
Symbol
IN 1
IN 2
Parameter
Suction ON/OFF
Blow off ON/OFF
A typical handling cycle is divided into the following three phases: pickup, blowoff and idle.
To check whether sufficient vacuum has built up, the limit value H2 is monitored by an integrated vacuum sensor during suction and output to the higher-level controller via OUT.
Phase
1
Switching step
1
Signal
NC version
IN1
Status
Suction ON
Signal
NO version
IN1
Status
Suction ON
2
2
3
OUT
IN1
Vacuum > H2
Suction OFF
OUT
IN1
Vacuum > H2
Suction OFF
3
4
5
6
IN2
OUT
IN2
Blow off ON
Vacuum <
(H2-h2)
Blow off OFF
IN2
OUT
IN2
Blow off ON
Vacuum <
(H2-h2)
Blow off OFF
Signal status changes from inactive to active.
Signal status changes from active to inactive.
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Operation
8 Operation
8.1 Safety Instructions for Operation
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
4 Do not look into the exhaust air flow
4 Wear eye protection
CAUTION
When the system is started in automatic operation, components move without advanced warning.
Risk of injury
4 Ensure that the danger zone of the machine or system is free of persons during automatic operation.
WARNING
Suspended load
Risk of serious injury
4 Do not walk, stand or work under suspended loads.
WARNING
Change of output signals when product is switched on or plug is connected
Risk of injury to persons and damage to property due to uncontrolled movements of the higher-level machine/system!
4 The electrical connection must be performed only by specialists who can evaluate the effects of signal changes on the overall system.
WARNING
Extraction of hazardous media, liquids or bulk material
Personal injury or damage to property!
4 Do not extract harmful media such as dust, oil mists, vapors, aerosols etc.
4 Do not extract aggressive gases or media such as acids, acid fumes, bases, biocides, disinfectants or detergents.
4 Do not extract liquids or bulk materials, e.g. granulates.
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Operation
8.2 General Preparations
Always carry out the following tasks before activating the system:
1. Before each start of operations, check that the safety features are in perfect condition.
2. Check the ejector for visible damage and deal with any problems immediately (or notify your supervisor).
3. Ensure that only authorized personnel are present in the working area of the machine or system and that no other personnel are put in danger by switching on the machine.
There must be no people in the system danger area while it is in operation.
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Help with Faults
9 Help with Faults
Vacuum generation fault
Ejector does not respond
Vacuum level is not reached or vacuum is created too slowly
Load cannot be held
Cause
No actuator supply voltage
No compressed air supply
Ejector is faulty.
Solution
4 Check electrical connection and pin assignment
4 Check the compressed air supply.
4 Check the ejector and contact Schmalz Service if necessary.
4 Replace screen Press-in screen in contaminated
Silencer is dirty
Hose or screw unions are leaking
Leakage at suction cup
Operating pressure too low
Internal diameter of hose line too small
Vacuum level too low
Suction cup too small
4 Replace silencer insert
4 Replace or seal components
4 Eliminate leakage from suction cup
4 Increase operating pressure, observe maximum limits
4 Observe recommendations for hose diameter
1. Increase the control range for the air saving function
2. Increase operating pressure, observe maximum limits
4 Select a larger suction cup
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Maintenance
10 Maintenance
10.1 Safety
Maintenance work may only be carried out by qualified personnel.
4 Create atmospheric pressure in the ejector's compressed air circuit before working on the system!
WARNING
Risk of injury due to incorrect maintenance or troubleshooting
4 Check the proper functioning of the product, especially the safety features, after every maintenance or troubleshooting operation.
NOTE
Incorrect maintenance work
Damage to the ejector!
4 Always switch off supply voltage before carrying out any maintenance work.
4 Secure it so that it cannot be switched back on.
4 The ejector must only be operated with a silencer and press-in screens.
10.2 Cleaning the Ejector
1. For cleaning, do not use aggressive cleaning agents such as industrial alcohol, white spirit or thinners. Only use cleaning agents with pH 7–12.
2. Remove dirt on the exterior of the device with a soft cloth and soap suds at a maximum temperature of 60° C. Make sure that the silencer is not soaked in soapy water.
3. Ensure that no moisture can reach the electrical connection or other electrical components.
10.3 Removing the Ejector Module
The ejector module (1) is fixed in the main body by the screwed-in holder cap (2).
1 2 3
4 Loosen holder cap (2) and pull out ejector module (1).
(The silencer (3) remains on the holder cap.)
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Maintenance
10.4 Replacing the Silencer
Heavy infiltration of dust, oil, and so on, may contaminate the silencer (3) and reduce the suction capacity. Cleaning the silencer is not recommended due to the capillary effect of the porous material.
If the suction capacity decreases, replace the silencer:
4 Remove the silencer (3) from the holder cap (2) through a pulling and turning motion
10.5 Opening and Cleaning the Ejector Module
1.1
1.2
4 Turn the nozzle fitting (1.2) to the “unlocked” position relative to the main body (1.1)
1. Pull the nozzle fitting out of the main body using only axial forces
2. Blow off with compressed air or clean under running water
For more information about cleaning, see the “Cleaning the Ejector” section.
10.6 Mounting the Ejector Module and Silencer
Reinstall the parts following cleaning or replacement:
1. Carefully push the nozzle fitting (1.2) into the main body (1.1).
Turn the nozzle fitting to the “locked” position relative to the main body
2. Clip the silencer (3) onto the holder cap (2).
There must not be any remaining gap.
3. Push the ejector module into the main body of the ejector.
4. Screw on the holder cap and tighten it with a tightening torque of 0.5 Nm.
10.7 Cleaning the Press-in Screen
There is a press-in screen in the compressed air connection of the ejector. Dust, shavings and other solid materials may accumulate in the screen over time.
4 If the performance drops noticeably, clean the sieve with a paintbrush.
If it is heavily soiled, you can send the ejector to Schmalz for repair (soiled sieves are replaced) subject to a fee.
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Warranty
11 Warranty
This system is guaranteed in accordance with our general terms of trade and delivery. The same applies to spare parts, provided that these are original parts supplied by us.
We are not liable for any damage resulting from the use of non-original spare parts or accessories.
The exclusive use of original spare parts is a prerequisite for the proper functioning of the ejector and for the validity of the warranty.
Wearing parts are not covered by the warranty.
Opening the ejector will damage the “tested” labels. This voids the warranty.
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Spare and Wearing Parts, Accessories
12 Spare and Wearing Parts, Accessories
12.1 Spare and wearing parts
Maintenance work may only be carried out by qualified personnel.
4 WARNING! Risk of injury due to improper maintenance!
After performing any maintenance or repair work, check that the system is functioning correctly, particularly the safety features.
NOTE
Incorrect maintenance work
Damage to the ejector!
4 Always switch off the supply voltage before carrying out maintenance work.
4 Secure it so that it cannot be switched back on.
4 The ejector must be operated only with a silencer and press-in screen(s).
The following list contains the primary spare and wearing parts.
Part no.
10.02.01.01450
10.02.01.01517
10.02.01.01831
Designation
ERS-SET SEP-22 6xRUE-KLAP
Only for SEP with outer Ø 22 2-13, 2-16, 3-16, 3-20 / not for nozzles 2-07 and 2-09
Silencer (round)
SD 29x70 SHC 22
Silencer (round)
SD 29x121.5 SHC
Only for SEP with outer Ø 22, 2-13, 2-16, 3-16, 3-20 / not for nozzles 2-07 and 2-09
Legend
S
W
W
Legend:
• W earing part = W
• S pare part = S
4 When tightening the fastening screws on the silencer module, observe the maximum tightening torque of 0.5 Nm.
When you replace the silencer insert, we recommend that you also replace the insulating plate.
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Spare and Wearing Parts, Accessories
12.2 Accessories
Part no.
21.04.05.00211
21.04.05.00080
21.04.05.00207
21.04.05.00158
10.02.02.03490
10.02.01.01397
10.02.01.01631
10.02.01.01514
10.02.01.01810
10.08.02.00300
10.08.03.00162
10.07.01.00126
Designation
Connection cable
Connection cable
Connection cable
Connection cable
Connection distributor
SEP HV 3 16 22
SEP HV 3 20 22
SHC 3 22
SHC 3 22
STV-GE, 1/2" external thread, 14
ST, 1/2" external thread, 13 MS-V
VFT, 1/2" internal thread, 100
Note
M12, 5-pin socket, to 5-pin M12 connector, 2 m
M12, 5-pin, with open end, 5 m
WB-M12-5 5000 K-5P, PUR, angled
B-M12-5 1000 S-M12-5, 1 m
M12, 5-pin, to 2xM12, 4-pin
Ejector module, multi-stage nozzle, for SCPS...3-16
Ejector module, multi-stage nozzle, for SCPS...3-20
Holder cap for SCPS...3-16
Holder cap for SCPS (not 3-16)
Plug-in screw union, straight, for SCPS...3-16
Hose sleeve, for SCPS...3-20
Vacuum cup filter, replaceable filter
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Decommissioning and Recycling
13 Decommissioning and Recycling
13.1 Disposing of the Product
1. Dispose of the product properly after replacement or decommissioning.
2. Observe the country-specific guidelines and legal obligations for waste prevention and disposal.
13.2 Materials Used
Component
Housing
Inner components
Silencer insert
Screws
Seals
Lubrication
Material
PA6-GF, PC-ABS, aluminum alloy
Aluminum alloy, anodized aluminum alloy, brass, galvanized steel, stainlesssteel, PU, POM
Porous PE
Galvanized steel
Nitrile rubber (NBR)
Silicone-free
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EC Conformity
14 EC Conformity
EU Conformity Declaration
The manufacturer Schmalz confirms that the product Ejector described in these Operating instructions fulfills the following applicable EU directives:
2014/30/EU
2011/65/EU
Electromagnetic Compatibility
RoHS Directive
The following harmonized standards were applied:
EN ISO 12100
EN 61000-6-3+A1+AC
EN 61000-6-2+AC
EN IEC 63000
Safety of machinery — General principles for design — Risk assessment and risk reduction
Electromagnetic compatibility (EMC) - Part 6-3: Generic standards - Emission standard for residential, commercial and light-industrial environments
Electromagnetic compatibility (EMC) - Part 6-2: Generic standards - Immunity for industrial environments
Technical documentation for the assessment of electrical and electronic products with respect to the restriction of hazardous substances
The EU Declaration of Conformity valid at the time of product delivery is delivered with product or made available online. The standards and directives cited here reflect the status at the time of publication of the operating and assembly instructions.
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