Emerson AVENTICS ED02 Instrucciones De Servicio página 19

Válvula reguladora de presión
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  • ESPAÑOL, página 45
Observe the following table containing the pin assignments of the integrated
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XPC plug, M12.
XPC
Integrated XPC plug, M12, male, 5-pin
Pin 1
4
3
Pin 2
Pin 3
5
Pin 4
2
1
Pin 5
00125293
1. Make sure before connecting the plugs that all seals and caps are included and
not damaged.
2. Only use tested plugs and cables.
3. Use a shielded cable to connect the integrated plug XPC (7).
The shield must be connected to the plug housing and the system.
4. Protect the supply voltage with an external M 0.5 A fuse.
5. Connect the cable at the integrated XPC plug.
The ED02 pressure regulator can now be supplied with voltage and controlled
with a set point.
7 Commissioning
Danger of burns caused by hot proportional solenoids!
Touching the proportional solenoids during operating may lead to burns.
1. Observe the warning sign on the right located on the device.
2. Do not touch the device during operation.
3. Let the device cool off before disassembling it.
Defective seals or leaky connections!
Liquids and foreign objects could penetrate the device and plug connections
and destroy the electronics.
1. Before commissioning, make sure that all seals and plugs are leaktight.
2. Never open the device.
Malfunction due to atmosphere containing oil!
Oil may clog the housing ventilation port. This will change the characteristic
curve.
Never operate the device in an atmosphere containing oil.
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7.1 Switching on the pneumatic and electric supply
Danger of destruction to connected devices if switched on in the wrong or-
der!
If the valve is first connected to the electric supply and then the pneumatic
supply, overshooting may cause the pressure in the operating line to reach a
level that is much higher than the set pressure. The pressure in the operating
line may even reach the level of the supply pressure before the adjusted pres-
sure is reached.
1. Make sure that the connected devices are resistant to the max. supply pres-
sure.
2. Always comply with the order for switching on the devices.
AVENTICS™ ED02 | R414002573-BAL-001-AG | English
24 V DC
Set point (+): current 0/4 to 20 mA or
voltage 0–10 V
0 V
Actual value (+): current 0/4 to 20 mA or
voltage 0 to 10 V or
10 V constant
Functional earth (FE)
CAUTION
NOTICE
NOTICE
NOTICE
Connected devices may be destroyed due to process-related leaks!
If switched on in the proper order, the device is first connected to the pneu-
matic supply and then the electric supply. If the device has not yet been con-
nected to the electric supply, contamination may cause the poppet valve to
leak, causing the pressure in the operating line to reach the level of the supply
pressure.
Make sure that the connected devices are resistant to the max. supply pres-
u
sure.
7.1.1 Selecting the correct supply pressure
A permanent deviation will occur if the supply pressure is less than the output
pressure stipulated by the electrical set point.
Always select a supply pressure that is higher than the output pressure.
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7.1.2 Switching on
CAUTION: Before applying compressed air to the system, check the stability of
the compressed air connections and make sure that no personnel are within the
hazardous zone when the compressed air supply is switched on.
Proceed as follows to commission the ED02 pressure regulator:
1. First switch on the pneumatic supply.
2. Then switch on the 24 V DC supply voltage.
7.1.3 Adjusting the set point
Enter the desired set point in the controller or potentiometer.
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8 Control
You can continually adjust the pressure once you have connected the electrical
and pneumatic supply on the ED02 pressure regulator.
To do this, the ED02 pressure regulator is e.g. controlled via a controller or po-
u
tentiometer using a set point.
ð The electronics compare the set point with the outlet pressure, which is mea-
sured by an internal pressure sensor.
ð The electronics generate a control variable.
ð The control variable is used to control the air supply or exhaust valve with U/I
converters and proportional solenoids.
ð This sets the stipulated pressure.
17
17
18
18
19
19
Fig. 4: Function block diagram of the ED02 pressure regulator with analog output
1 Inlet connection 1 for supply pressure
or vacuum
3 Exhaust or vacuum connection 3
18 Set point input
8.1 Controlling the pressure
Malfunction caused by closed housing ventilation port!
If the housing ventilation port is closed, there is no atmospheric equalization
and the characteristics curve will change.
1. Ensure that the air can circulate freely through the housing ventilation
port (5).
2. Never operate the device in an atmosphere containing oil.
NOTICE
 
3
2
1
00125297
2 Outlet connection 2
17 Supply voltage
19 Actual output value
NOTICE
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