Aventics ECD-IV Notice D'instruction page 22

AVENTICS | ECD-IV | R412025990–BAL–001–AC | English
Switch-off delay for the parts control signal H2
This function can be used to select a switch-off delay for the parts control signal H2.
This can be used to suppress short-term drops in the vacuum circuit.
O Use the configuration menu (menu item [dlY]) to adjust the length of the switch-
off delay.
You can select values of 10, 50 or 200 ms.
O To deactivate the switch-off delay, select the value 0 (= off).
The switch-off delay affects the discrete output OUT2, the process data bit in
IO-Link and the status display H2
When the output OUT2 is configured as normally open [no], an electrical
switch-off delay is applied. When configured as normally closed [nc],
a switch-on delay is applied.
ECO mode
Activating ECO mode switches off the display two minutes after the last button
activation and reduces the system's current consumption.
A red dot in the bottom right-hand corner of the display indicates that the display is
switched off. Press any button to reactivate the display again. The display reactivates
again when an error message appears.
O Use the configuration menu (menu item [ECO]) to activate/deactivate ECO mode.
Write protection
A PIN code can be used to prevent the parameters from being changed in the user
menu. The display of the current settings is still guaranteed.
Upon delivery of the device, the PIN code is 000. This means that access to the
parameters is not locked. To activate write protection, you must enter a valid PIN
code between 001 and 999.
If write protection is activated by a customer-specific PIN code, the required
parameters can be adjusted within one minute of the correct code being entered.
If no changes are made within one minute, write protection is automatically activated
again. To permanently enable the display, you must set the PIN code to 000 again.
O Enter the PIN code into the configuration menu (menu item [PIN]).
As the state of signal inputs and outputs can change as a result of
configuration during active operation, we recommend using a PIN code.
Resetting to factory settings
This function is used to reset the ejector configuration for initial setup and the
settings for the active production setup profile to the factory settings.
The counter statuses, zero-point adjustment for the sensor, and the IO-Link
parameter "Application Specific Tag" are not affected by this function.
O Run the function using the configuration menu (menu item [rES]).
The factory settings for the ejector are listed at the end of these instructions
(table 9 )
The "Reset to factory settings" function does not affect the production setup
profiles currently inactive.
Resetting the device to its factory settings changes the switching points and
the configuration of the signal output. This may change the state of the
ejector system.
Counter
The ejector is equipped with two internal counters [cc1] and [cc2] that cannot be
deleted.
Symbol Function
Counter 1
Counter 2
The counters can be checked on the system menu.
Calculating the difference between counter 2 and counter 1 can provide information
regarding the average switching frequency of the air economizer.
Voltage monitoring
All ejector types are equipped with internal voltage monitoring. If the supply voltage
drops below the permitted threshold, the ejector switches to fault status E07. This is
shown on the display; menu operation and response to signal inputs is prohibited.
The parts control output functions as normal. The button
display the current supply voltage.
In terms of the pneumatics, the ejector's state changes as follows:
Description
Counter for suction cycles
("Suction" signal input)
Counter for the "suction valve" switching
frequency
can still be used to
Ejector type NO
Ejector switches to the "Suction" operating state
Ejector type NC
Ejector switches to the "Pneumatics OFF" operating state
In the event of undervoltage and active suction, control is no longer active.
Furthermore, the system detects when the supply voltage is too high and generates
a corresponding error message.
Setting the blow-off volume flow
+
–
Below the vacuum connection there is a flow control screw for setting the blow-off
volume flow.
O Turn the flow control screw clockwise (to the right) in order to reduce the volume
flow.
O 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.
First-time commissioning
1. Make sure that all electrical and pneumatic connections of the ejector are
correctly connected and are firmly fitted.
2. Enter the required menu settings (basic settings, configuration menu, system
menu, and user menu).
3. Switch on the operating voltage.
4. Switch on the operating pressure.
Recommissioning after a downtime
1. Make sure that all electrical and pneumatic connections of the ejector are
correctly connected and are firmly fitted.
2. Switch on the operating voltage.
3. Switch on the operating pressure.
A typical handling cycle is divided into the three steps of suctioning, blowing off and
idle state. In order to check whether sufficient vacuum has been built up, output 2 is
monitored during suctioning.
ECD-IV-EC-xx-NO
Step
Bit
1 IN1
2 OUT2
3 IN1
4 IN2
5 IN2
6 OUT2
Signal state changes from
inactive to active
ECD-IV-EC-xx-NC
State Bit
Suction IN1
ON
Vacuum OUT2
> H2
Suction IN1
OFF
Blow-off IN2
ON
Blow-off IN2
OFF
Vacuum OUT2
< (H2-h2)
Signal state changes from
active to inactive
15
State
Suction
ON
Vacuum
> H2
Suction
OFF
Blow-off
ON
Blow-off
OFF
Vacuum
< (H2-h2)