Product Description; Display And Operating Elements - Aventics ECD-LV Betriebsanleitung

AVENTICS | ECD-LV | R412025991–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-LV-EC-20-NO-RD).
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-LV
Operating mode: EC
electrical
Performance class 20; 25
Home position NO (normally open)
suction without current
System monitoring VD (digital vacuum
switch,
on request)
O Refer to the name plate of your version for further details.
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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 4 buttons, a three-digit display, four LEDs, and a status display
for the system vacuum.
For an explanation of the symbols of the display see table
Process state LEDs
Process states "suction" and "blow-off" each have an LED assigned.
LED status
Both LEDs are off
1 9
LED "suction"
is constantly lit
1 9
LED "blow-off"
is constantly lit
1 9
NC (normally closed)
no suction without
current
RD (digital vacuum
switch and integrated air
economizer function)
Item Description
1 LED valve "blow-off"
2 Status display for system vacuum
3 LED "H1" (air economizer function)
and LED "H2" (signal output
"parts control")
4 Display (3-digit 7-segment display)
5 Down button
6 Up button
7 ENTER button
8 Menu button
9 LED valve "suction"
7
.
Ejector status
Ejector is not suctioning
NO: ejector is not suctioning
NC: ejector is suctioning
or being regulated
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
LED H2
is constantly lit
Both LEDs
are constantly lit
Status display for system vacuum
The ejector features a status display for the system vacuum. and for monitoring
functions.
The system status is indicated by the colors RED or GREEN.
The status display is refreshed for each suction cycle that was activated (NC)
or deactivated (NO) via the "suction" signal input.
In regular suction cycles, the status display indicates the height of the current
system vacuum in relation to the switching point H1. The status display goes out
at the end of a regular suction cycle.
Vacuum monitoring
Status display Vacuum monitoring
Vacuum increasing: vacuum ≤ H1
Vacuum decreasing: vacuum ≤ H1-h1
G
G = GREEN
Vacuum < H1
R
R = RED
Monitoring functions
If the switching point H1 is never reached within a suction cycle, the status display
remains RED at the end of the suction cycle.
The ejector variant with air economizer function (RD) features a valve protection
function. If the air economizer function is activated [ctr=on] and high leakage in the
gripping system, the ejector very frequently switches between the status "Venturi
valve active" and "Venturi valve inactive". This vastly increases the number of
switching procedures of the valves within a very short period of time. To protect the
ejector and increase the service life, the ejector automatically switches off the air
economizer function with a switching frequency of >6/3 s and activates permanent
suction, i.e. the ejector remains in the "Venturi valve active" status. The status display
remains RED until the next regular suction cycle.
Status display Vacuum monitoring
H1 is never exceeded in the
suction cycle
R
Suction valves switches
>6/3 s (ejector variant RD)
R = RED
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)
Ejector reaction
Vacuum < H1
Ejector activates permanent
suction, i.e. remains in the
status "Venturi valve active"
(valve protection function)
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