Commissioning And Operation - Aventics ECD-LV Betriebsanleitung

AVENTICS | ECD-LV | R412025991–BAL–001–AC | English
6 Assembly
2
1
Assembling the ejector
The ejector can be mounted with screws, see Fig.
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.
Equipment damage due to underpressure
Operating the ejector with a closed vacuum connection can lead to underpressure.
This can damage the ejector.
O Make sure that the vacuum connection is not closed.
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-LV-EC-...
Performance class
Compressed air end
20
25
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.
1
. See figure for dimensions
3
CAUTION
NOTICE
1)
Inside diameter [mm]
Vacuum end
6 8
8 9
1
:
CAUTION
Pin assignment of the connection plugs, SIO mode
M12 plug, 5-pin
2
.
Plug Pin
1
2
4 3
3
5
1 2
4
5
1)
NO version: suction OFF, NC version: suction ON
2)
NO/NC version: blow-off ON/OFF
Make the electrical connections for the ejector as follows, see Fig.
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 ejector's electrical connection (5).
Direct connection
U /U
S A
BUS
For directly connecting the
ejector to the controller
(PLC), use AVENTICS
connecting cables, for
example.
W
Connecting cable, 5 m,
material number:
R412026780*
* See chapter 10 "Accessories"
Planning, SIO mode
All process signals have to be wired in parallel for operating the ejector in SIO mode.
Consequently, three lines are required per ejector for the process signals.
Process data INPUT (PLC)
Signal Symbol
0 OUT 1
Process data OUTPUT (PLC)
Signal Symbol
0 IN 1
1 IN 2
7

Commissioning and Operation

Severe personal injury or property damage due to moving machine/system
parts
When the supply voltage is switched on, the signal output may change. Depending
on the machine's functionality, the machine/system may be put into motion.
O Make sure that no persons are in the transporting area when you switch on the
machine/system.
Symbol Function
U Supply voltage
SA
1)
IN1 "Suction" signal input
Gnd Ground
SA
Out "Parts control" signal output (H2)
2)
IN2 "Blow-off"
Connection via I/O box
U /U
U /U
S A S
I/O
BUS BUS
External blow-off Automatic blow-off
For connecting the ejector to I/O boxes, use
AVENTICS connecting cables, for example.
W
Connecting cable, 5 m, material number:
8946054702*
Parameter
Switching point H2 (part control)
Parameter
Suctioning ON/OFF
Blowing off ON/OFF
WARNING
14
signal input
1
:
A
I/O