Product Description; Display And Operating Elements - Aventics ECD-IV Notice D'instruction

AVENTICS | ECD-IV | R412025990–BAL–001–AC | English

Product description

PNP or NPN ejector variant
The switching behavior of the ejector's electrical inputs and its output can be
adjusted and therefore is not dependent on the variant.
The ejectors are set to PNP as their factory settings.
Every ejector has an exact article designation (e.g. ECD-IV-EC-07-NO). The ejectors are
distinguished into NO (normally open) and NC (normally closed) based on their basic
position when no voltage is applied.
The breakdown for the article designation is as follows:
Type ECD-IV
Operating mode: EC
electrical
Performance class 07; 10; 15
Home position NO (normally open)
suction without current
O Refer to the name plate of your version for further details.
5

Display and Operating Elements

Vacuum/pressure indicator
The display either shows the current system vacuum or the menu. The 2 LEDs H1
and H2 indicate in which range the vacuum level currently is with respect to the set
threshold values.
The ejector features three buttons, a three-digit display and four LEDs.
7 1 5
6 3 2 4
Process state LEDs
Process states "suction" and "blow off" each have an LED assigned.
LED status
Both LEDs are off
LED "suction" is constantly lit
LED "blow off" is constantly lit Ejector is blowing off
LEDs threshold values H1 and H2
The LEDs for threshold values H1 and H2 indicate the current system vacuum level.
LED status
Both LEDs are off
H1
H2
LED H2 is constantly lit
H1
H2
Both LEDs are constantly lit
H1
H2
NC (normally closed)
no suction without current
Item Description
1 Display
2 LEDs threshold values H1 and H2
3 Menu button
4 Up button
5 Down button
6 "Suction" process state LED
7 "Blow off" process state LED
Ejector status
Ejector is not suctioning
Ejector is suctioning
or being regulated
Ejector status
Vacuum increasing:
Vacuum < H2
Vacuum decreasing:
Vacuum < (H2-h2)
Vacuum increasing:
Vacuum > H2 and < H1
Vacuum decreasing:
Vacuum > (H2-h2) and < (H1-h1)
Vacuum increasing:
Vacuum > H1
Vacuum decreasing:
Vacuum > (H1-h1)
6 Assembly
3 1
3 1
Assembling the ejector
The ejector can be mounted either with screws or by using a hat rail clamp, see
3 1 2
Fig. and See figure for dimensions.
.
When mounting the fastening screws, we recommend using washers.
Connecting the ejector pneumatics
System is under pressure during operation
Working on the system under pressure can lead to injuries and damage to property.
O Depressurize all relevant system parts prior to performing work on the system.
W
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).
W
Dirt particles or foreign bodies in the ejector connection or tubing or pipelines
may impair the ejector's function or lead to a malfunction.
W
Route tubing and pipelines as short as possible.
W
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.
W
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.
W
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-IV-EC-...
Performance class
Compressed air end
07
10
15
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. 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 (8) and
the vacuum tubing with the vacuum connection (4).
Electrically connecting the ejector
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.
O Make sure that all relevant system parts are not under voltage before
performing work on the system.
O Connect or disconnect plug connectors only if all relevant system parts are
without voltage.
W
Electrical connection is made via a 5-pin M12 plug that supplies the ejector with
power and includes the two input signals and the output signal. Inputs and
outputs are not galvanically isolated.
W
Use protective extra low voltage (PELV) only and provide for secure electrical
isolation of the operating voltage in accordance with EN 60204.
W
The maximum line length for the supply voltage and the signal inputs and outputs
is 30 m.
4
CAUTION
1)
Inside diameter [mm]
Vacuum end
4 4
4 4
4 6
1
:
CAUTION
12