AVENTICS ECD-BV Compact Ejector Instruction Manual

ECD-BV Compact Ejector
Instruction Manual

ECD-BV Compact Ejector

R412025988/2017-08, Replaces:

About this Documentation

These instructions contain important information for the safe and appropriate assembly and commissioning of the product.
Read these instructions carefully, especially chapter 2 “Notes on Safety”, before you start working with the product.
Documentation validity
This documentation is valid for ECD-BV series compact ejectors.
Additional documentation
Also, follow the instructions for the other system components.
Please also observe the generally relevant, statutory, and other binding regulations of European and national legislation and the national regulations for accident prevention nd environmental protection in your country.
Presentation of information
Warnings
In this document, there are safety instructions before the steps whenever there is a danger of personal injury or damage to the equipment. The measures described to avoid these hazards must be followed.
Structure of warnings
SIGNAL WORD
Hazard type and source
Consequences of non-observance O Measures to avoid these hazards
Bedeutung der Signalwörter
WARNING
Indicates a hazardous situation that, if not avoided, could result in death or serious injury.
CAUTION
Indicates a hazardous situation that, if not avoided, could result in minor or moderate injuries.
NOTICE
Indicates that damage may be inflicted on the product or the environment.
Symbols
The operation may be impaired if this information is disregarded.

Notes on Safety

The product has been manufactured according to the accepted rules of current technology. Even so, there is a risk of injury or damage if the following general safety instructions and the specific warnings given in this instruction manual is not observed
Please read all these instructions carefully before working with the product.
Keep these instructions in a location where they are accessible to all users at all times.
Always include the operating instructions when you pass the product on to third parties.
Intended use
The ejector is exclusively intended for installation in a machine or system or for combination with other components to form a machine or system.
Use is permitted only under operating conditions and within the performance limits listed in the technical data. Only use neutral gases in accordance with EN 983 as media.
Exclusively use the ejector for vacuum generation in pneumatic systems.
Compact ejectors are intended for professional use only and not for private use. Compact ejectors may only be used for industrial applications (class A in accordance with DIN EN 55011). An individual license must be obtained from the authorities or an inspection center for systems that are to be used in a residential area (residential, business, and commercial areas). Intended use includes having read and understood these instructions, especially chapter 2 “Notes on Safety”.
Improper use
O Do not use the ejector in explosive areas.
O Do not use the ejector to suction fluids, aggressive or flammable gases, and bulk materials (e.g. granulate).
Personnel qualifications
Assembly, disassembly, commissioning, and maintenance (incl. service and care) require basic mechanical and pneumatic knowledge, as well as knowledge of the appropriate technical terms.
In order to ensure operational safety, these tasks may only be carried out by qualified personnel or an instructed person under the direction of qualified personnel.
Qualified personnel is those who can recognize possible hazards and institute the appropriate safety measures, due to their professional training, knowledge, and experience, as well as their understanding of the relevant regulations pertaining to the work to be done. Qualified personnel must observe the rules relevant to the subject area.
The trained personnel must also be familiar with the control concept of the system.
General safety instructions

• Observe the valid local regulations in the country of use to protect the environment and avoid workplace accidents.
• Only use AVENTICS products that are in perfect working order.
• Examine the product for obvious defects, such as cracks in the housing or missing screws, caps, or seals.
• Do not modify or convert the product.
• Opening the product will destroy the “tested” label. This voids the warranty.
• The warranty will not apply if the product is incorrectly assembled.
• Do not place any improper mechanical loads on the product under any circumstances.
• Generally, protect the product from damage.
• Product warnings and information must be legible, i.e. not covered by paint, etc.
• No liability is assumed for damage caused by the use of non-original spare parts or accessories. All worn parts are excluded from the warranty.

Safety instructions related to the product and technology
WARNING
Open vacuum/exhaust air connections and vacuum cup
Risk of injury by suctioning of eyes or other parts of the body.
Risk of injury due to exhaust air and any other parts and debris that may have been drawn in being emitted from the exhaust air connection at high speed.
Never look into vacuum openings, neither suctioning nor not suctioning (e.g. vacuum connections or connected vacuum cups).
Never look into or enter the exhaust air stream.
On assembly
W Make sure the relevant system component is not under pressure or voltage before assembling the product or when connecting and disconnecting plugs. Protect the system from being restarted.

• Lay cables and lines so that they cannot be damaged and no one can trip over them.

• Observe the connection symbols and connection designations on the ejector.

• Only use the designated connection options, mounting holes, and mounting material.

• Before commissioning, make sure that all the connection seals and locks are properly installed and undamaged to prevent fluids and foreign bodies from penetrating the product.

• Only use the following power supply for the components:
  – 24 V DC PELV circuits in accordance with DIN EN 60204-1/IEC 60204-1.
  – The PELV power source must be a safety isolation transformer in accordance with IEC 61558-1 or IEC 61558-2-6, or a power source offering the same degree of safety as a safety isolation transformer.
  – Make sure that the power supply of the power pack is always less than 300 V AC (outer conductor – neutral wire).

• In case of heavily contaminated vacuum/ambient air, use a VFC cup version vacuum filter between the vacuum connection and the volumes to be evacuated.

During commissioning

• Check that all the electrical and pneumatic connections are allocated or closed. Only commission fully installed products.

During operation

• Do not use the ejector in areas that do not splash waterproof.
• Closed containers may explode due to compressed air. Closed containers may implode due to vacuum.
• Only operate the ejector with a silencer. Never look into the exhaust air stream of the silencer.
• The ejector emits acoustic noise. We recommend wearing ear protectors.
• If contrary to the intended use, hazardous dust, oil mist, vapors, aerosols, or the like are extracted, they will mix with the exhaust air. This can lead to poisoning.
• Operating the product beyond the specified performance limits is not permitted. Malfunctions and destruction may result.
• No persons are allowed in the transporting area of the suctioned useful load.
• With the machine/system in automatic mode, no persons are allowed in the danger zone.

During cleaning

• Never use solvents or aggressive detergents. Only clean the product using a damp cloth. Only use water and, if necessary, a mild detergent.
• Do not use high-pressure cleaners for cleaning.

During service and repairs

• Make sure that no line connections, ports, and components are disconnected as long as pressure and voltage are applied in the system. Protect the system against being restarted.

Scope of Delivery

The scope of delivery includes:

• 1 compact ejector ECD-BV
• Operating instructions

About This Product

Product Overview1
Fig. shows compact ejector ECD-BV.**1**
Function description
Vacuum generation (suctioning of the workpiece)
The ejector is designed for handling parts using a vacuum in conjunction with suctioning systems.
The ejector is actuated via the pilot valves. The “suction” pilot valve activates and deactivates the Venturi nozzle. In the NO variant, an applied voltage deactivates the Venturi nozzle, while in the NC version it activates the nozzle. On suctioned objects with leak-tight surfaces, the integrated non- return valve prevents the vacuum from dropping.
Blow off (placing down the workpiece)
The vacuum circuit of the ejector is pressurized with compressed air via the “blow off” pilot valve. This mode isused to ensure fast vacuum reduction and thus quick placing of the workpiece.
Product Description
Variants
Every ejector has an exact article designation (e.g. ECD-BV-EC-07-NO). The breakdown of the article designation is as follows:

closed) no suction without current

Refer to the nameplate of your variant for further details, see figure. **1**

Assembly**3 1**

Assembling the ejector3 1
The ejector can be mounted either with screws or by using a hat rail clamp, see Fig**3** and.**1** See figure**2** for dimensions.
When mounting the fastening screws, we recommend using washers.
Connecting the ejector pneumatics4
CAUTION
The system is under pressure during the operation
Working on the system under pressure can lead to injuries and damage to property.
Depressurize all relevant system parts prior to performing work on the system.

• Use only compressed air from an appropriately maintained system (air or neutral gas in accordance with EN 983, filtered to 5 μm, oiled or oil-free).
• We recommend using external filters for high levels of accumulated dirt on the suction end (dust, chips, etc.): for example, VFI 6/4 for BV 07/10 and VFI 8/6 for BV 15.
•  Wirt particles or foreign bodies in the ejector connection or tubing or pipelines may impair the ejector’s function or lead to a malfunction.
•  Route tubing and pipelines are as short as possible.
•  If the inside diameters selected for the compressed air end are too small, the supply of compressed air will be insufficient. As a result, the ejector will not achieve its specified performance.
• If the inside diameter selected for the vacuum end is too small, this will cause an excessively high flow resistance. This will in turn decrease the suction capacity and increase the suction time. Blow-off times will also increase.
• Use only the tubing or pipe inside diameters that are recommended for the ejector. If this is not possible, use the next higher diameter.

Recommended inside diameters

ECD-BV-EC-…Performance
class| Inside diameter [mm]¹
---|---
Compressed air end| Vacuum end
7| 4| 4
10| 4| 4
15| 4| 6

1. Based on a maximum tubing length of 2 m. In the case of longer tubing lengths, select larger cross sections as appropriate.

Make the pneumatic connection for the ejector as follows, see Fig:**1**

1. Make sure the relevant system part is not under pressure.
2. Lay the tubes so as not to bend or crush them.
3. Connect the compressed air tubing with the compressed air connection (5) and the vacuum tubing with the vacuum connection (4).

Electrically connecting the ejector
CAUTION
The system is under voltage during operation
Working on the system under voltage can lead to injuries due to electric shock or damage to the components.
Make sure that all relevant system parts are not under voltage before performing work on the system.
Connect or disconnect plug connectors only if all relevant system parts are without voltage.
Use a protective extra low voltage (PELV) only and provide for secure electrical isolation of the operating voltage in accordance with EN 60204.
For directly connecting the ejector to the controller, use AVENTICS connecting cables, see “Accessories”.
No polarity needs to be observed when connecting the valves. Plugs for valves must click into place.
Make the electrical connections for the ejector as follows in Fig.**1**:

1. Make sure the relevant system part is not under voltage.
2. Lay the cables so as not to bend or crush them.
3. Connect the power supply to the pilot valves (1, 2).

Commissioning and operation

CAUTION
Personal injury or property damage caused by non-compliance with specific technical rules
Operating the ejector system without power packs and without complying with standard EN 60204 can result in personal injuries and damage to the system and the connected components.
Only operate the system using power packs with protective extra-low voltage (PELV) and safe electric isolation of the supply voltage in accordance with EN 60204.
Do not connect or disconnect plug connectors under voltage.
General functions
WARNING
Open vacuum/exhaust air connections and vacuum cup
Risk of injury by suctioning of eyes or other parts of the body.
Risk of injury due to exhaust air and any other parts and debris that may have been drawn in being emitted from the exhaust air connection at high speed.
Never look into vacuum openings, neither suctioning nor not suctioning (e.g. vacuum connections or connected vacuum cups).
Never look into or enter the exhaust air stream.
Setting the blow-off volume flow
See figure**1**“Ejector design”.
Below the vacuum connection, there is a flow control screw for setting the blow-off volume flow.
Turn the flow control screw clockwise (to the right) in order to reduce the volume flow.
Turn the flow control screw counterclockwise (to the left) in order to increase the volume flow.
The flow control screw has a stop on both sides.
Do not turn the flow control screw beyond its stops! Due to technical reasons, a minimum volume flow of approx. 10% is always required.  The blow-off volume flow can be set to a value between 10% and 100%.
Commissioning
The ejector may only be commissioned after it has been installed in the machine/system for which it is intended.
Commissioning for the first time and recommissioning after downtime

1. Make sure that all electrical and pneumatic connections of the ejector are correctly connected and firmly fitted.
2. Switch on the operating voltage.
3. Switch on the operating pressure.

Operation
The ejector is actuated via the pilot valves. The blow-off volume flow can be set via the flow control screw. See also “Technical Data”.

Service and Repairs

External contamination
NOTICE
Damage and disruptions due to penetrating fluids or contact with aggressive media
Penetrating fluids and the use of solvents and aggressive cleaning agents can lead to damage and disruptions.
In this case, a reliable ejector function can no longer be guaranteed.
Only clean the ejector with a damp, lint-free cloth.
Only use water and, if necessary, a mild detergent for cleaning.
Make sure that the silencer and the controller are not soaked in fluid.
Do not use a high-pressure cleaner.
Silencer
NOTICE
Damage due to excessive force
Exerting excessive force when tightening the mounting screws can lead to damage to the housing.
Observe the maximum torque of 0.5 Nm when tightening the mounting screws on the silencer module.
We recommend that you also replace the damping plate when exchanging the silencer insert.
The open silencer can become soiled if exposed to heavy contamination by dust, oil, etc., and thus reduce the suction capacity. It should be replaced in this case. Due to the capillary effect of the porous material, cleaning is not recommended.
Spare and wearing parts

“Blow-off” pilot valve for ejector type NO/NC / “Suction” pilot valve for ejector type NC| R412026285
“Suction” pilot valve for ejector type NO| R412026286
Damping plate| R412026156

Disassembly

CAUTION
The system is under pressure during the operation
Working on the system under pressure can lead to injuries and damage to property.
Depressurize all relevant system parts prior to performing work on the system.
CAUTION
The system is under voltage during operation
Working on the system under voltage can lead to injuries due to electric shock or damage to the components.
Make sure that all relevant system parts are not under voltage before performing work on the system.
Connect or disconnect plug connectors only if all relevant system parts are without voltage.

1. Make sure the relevant system part is not under voltage or pressure.
2. Actuate the locking lever in order to disassemble the pilot valves.

Troubleshooting

limits)
Inside diameter of the tubing line is too small| See recommendations for tubing diameter
Unable to hold the useful load| The vacuum level is too low| Increase the operating pressure (observe max. limits)
The vacuum cup is too small| Select a larger vacuum cup

Accessories

Disposal

Dispose of the ejector in accordance with the national regulations in your country.

Technical Data

Electrical parameters

ECD-BV-EC-xx-NO

Nominal current fromUA²)| IA| –| –| 110| mA| UA = 24 V
ECD-BV-EC-xx-NC
Nominal current fromUA³)| IA| –| –| 55| mA| UA = 24 V

1. The supply voltage must comply with the regulations in accordance with EN 60204 (Protective extra-low voltage).
2. Simultaneous control of the “suction” and “blow-off” valves
3. Separate control of the “suction” and “blow-off” valves

Mechanical data

Protection
class| | ––| ––| IP65| |
| P| 2| 4| 6| bar|
Operating medium| Neutral gases in accordance with EN 983, e.g. air, nitrogen, and inert gases (e.g. argon, helium, neon), filtered to 5 μm, oiled or oil- free, compressed air quality class 3-3-3 as per ISO 8573-1

Mechanical parameters

1)at 4 bar
Materials used

steel, stainless steel, PU, POM
Silencer insert| Porous PE
Seals| NBR
Lubrication| Silicone-free
Screws| Galvanized steel

Figures: View varies according to the series.![AVENTICS ECD-BV Compact Ejector

• fig](https://manuals.plus/wp-content/uploads/2022/10/AVENTICS-ECD-BV- Compact-Ejector-fig.png)

Ejector design

*Identification number on the ejector, see figure.

Assembling the ejector

(optional)

Dimensions (in mm)

Pneumatic circuit diagrams

AVENTICS GmbH
Ulmer Straße 4
30880 Laatzen, GERMANY
Phone +49 (0) 5 11-21 36-0
Fax: +49 (0) 511-21 36-2 69
www.aventics.com
info@aventics.com
Further addresses:
www.aventics.com/contact

The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The given information does not release the user from the obligation of their own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging.
An example configuration is depicted on the title page. The delivered product may thus vary from that in the illustration.
Translation of the original operating instructions. The original operating instructions were created in the German language.
R412025988–BAL–001–AA/2017-08 Subject to modifications. © All rights reserved by AVENTICS GmbH, even and especially in cases of proprietary rights applications. It may not be reproduced or given to third parties without its consent.

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