Festo VPPE-3-1-1/8-x-E1 Series Operating Instructions

VPPE-3-1-1/8-...-E1
(LED-Display)
Operating instructions Festo AG & Co. KG
Postfach
D-73726 Esslingen
Phone:
+49/711/347-0
www.festo.de
Original: de
0909a 749 698
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
For electrical isolation of operating voltage:
• Use only power units which guarantee reliable
electrical isolation of the operating voltage as per
IEC/DIN EN 60204-1. Observe also the general
requirements for PELV power circuits as per IEC/DIN
EN 60204-1.
Switch power packs are permitted, providing they
guarantee reliable isolation in accordance with
EN 60950/VDE 0805.
3 4 5
Type: ...E1
2
1
aB
Type: ...E1T
5 6 3
2
4
1
aB
1
Supply port (1)
2
Electrical connection
3
Status LED (green)
4
Earth terminal, external (front and back side)
5
Operating key upwards (UP)
6
LED display
7
Operating key downwards (DOWN)
8
Edit key
9
Pressure output (2)
aJ Venting (3)
aA Front fastening hole
aB Side fastening hole
Fig. 1
Proportional pressure regulating valve
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
• Installation and commissioning may only be
performed in accordance with the operating
instructions and by qualified personnel.
1 Application and function
The VPPE-... is designed to control pressure proportion-
ately to a specified setpoint value.
Replacement of manually adjustable pressure regulators
by remotely, electrically adjustable regulators, to have
different machine parameters available quickly and auto-
matically, for example.
Setpoint value
Setpoint value
Supply port
Venting
2 Variants of the VPPE-...
Type code of the VPPE-...
Warning
VPPE - 3 - 1 - 1/8 - 6 - 010 - E1T
1 2
Item Features Meaning
1 Pressure regulation range:
2 0.02 ... 2.0 bar
6 0.06 ... 6.0 bar
10 0.1 ... 10.0 bar
2 Setpoint specification:
010 0 ... 10 V (voltage)
420 4 ... 20 mA (current)
Control unit: E1 7-segment LED display
3
Type of mounting: T Supply manifold mounting
6 6
3 Conditions of use
General conditions for the correct and safe use of the
product, which must be observed at all times:
• Observe the specified limits (e.g. for pressures,
7
temperatures and electric voltage).
• Make sure there is a supply of correctly prepared
8
compressed air in accordance with the specifications on
the medium Technical specifications.
• Please observe the prevailing ambient conditions.
9
• Please comply with national and local safety laws and
regulations.
aJ
• Remove all transport packing, such as protective wax,
aA foils, caps, cardboard boxes (with exception of the
covers in the pneumatic connections).
The individual materials can be stored in containers for
recycling purposes.
• Slowly pressurize the complete system.
This will prevent uncontrolled movements from
occurring.
• Note the warnings and instructions
7
– on the product
– in these operating instructions.
• Use the product in its original state without undertaking
8
any modifications.
4
4 Fitting
aA
9 4.1 Mechanical
• Handle the VPPE-... with care so that the electrical
aJ
connection is not damaged.
Such damage reduces the operational reliability.
• Make sure there is sufficient space for the cable
connection and tube couplings. This avoids breakage of
the connecting cable.
• Put the VPPE-... as close as possible to the consuming
device. This leads to improved control precision annd
shorter response times.
• Push two screws (M4) into the side mounting holes aB
or the front mounting holes aA (see Fig. 1),
max. torque: 2 Nm.
• Fasten the VPPE-... in the intended location.
4.2 Pneumatic
• Remove the covers on the compressed air connections.
• Attach the pneumatic tubing to the following connec-
tions (see Fig. 1):
– Supply port (1) 1
– Pressure output (2) 9
• Install a silencer at venting (3) (item aJ ) or remove the
exhaust with ducted tubing.
en
. . . . . . . . . . . . . . . . . .
Note
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The position of the pneumatic connections depends on
the variant ordered.
4.3 Electrical
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Make sure that the cable is laid as follows:
– not squashed
– not bent
– not stretched.
Pin 5
• Use accessories from Festo (see "Accessories"):
– plug socket with cable
or
Pressure
– socket cable, ready-to-use.
output
This ensures that the specified protection class IP65
and EMC are achieved.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
To ensure EMC safety, the device must be earthed as
follows:
• Use the earth terminal (see Fig. 1).
3
• Use the following earthing accessories (included in
delivery):
– Self-cutting screw
– Flat plug
– Contact disc
• Connect the circuitry of the VPPE-... as show in the
circuit diagram. Preferably use cable from Festo.
4
1
1)
PIN no. Colour VPPE
1 brown +24 VDC
2 white Analogue input – setpoint value / – w
3 blue GND
4 black Analogue input + setpoint value / + w
(0 ... 10 V or 4 ... 20 mA)
5 grey Switch output (24 V) or
analogue output (0 ... 10 V or 4 ... 20 mA)
+ actual value / X
1)
Colour is only valid for accessory cable from Festo
5 Commissioning
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
• The VPPE-... interprets setpoint signals less than
0.1 V as 0 V and setpoint signals less than 4.16 mA
as 4 mA. In this case, the output pressure is set to
0 bar through activation of the ventilation valve.
As a result, a clear valve condition is assured at
w = 0.
• Safety position:
In case of setpoint cable break of the voltage variant,
the output pressure is set to 0 bar. In case of setpoint
cable break of the current variant, or in case of loss
of power supply, the output pressure remains uncon-
trolled. Leakage produces a change in pressure in the
long term.
• Connect the VPPE-... with a setpoint signal.
The VPPE has a so-called "differential input". The
setpoint signal is applied to the contact Pin 2 and Pin 4,
whereby the lower potential must be connected to
contact Pin 2 and the higher potential to contact Pin 4.
Contact Pin 2 (– setpoint) can be connected to contact
Pin 3 (GND).
• Apply current to the VPPE-... with direct current
(Supply voltage U = 24 VDC ±10 %).
V
• Pressurise the VPPE-... with a supply pressure (p1) at
least 1 bar higher than the maximum desired output
pressure. A proportional output pressure (p2) is set
automatically.
The following output pressure range is then assigned to
the setpoint signal range 0 ... 10 V or 4 ... 20 mA:
Setpoint p Output pressure range of the variant
signal range i l
2 bar
0 ... 10 V or 0.02 ... 2 bar
4 ... 20 mA
5.1 Recommended parameter sets
The valves in all pressure variants are set at the factory
Note
with Preset 2.
Preset
recommendation d ti
Consuming device volumes
Note
5.2 VPPE display and meaning
Notes on the following table:
Preset, control behaviour:
You can select the desired factory parameter set in the
menu on the VPPE (Pr1, Pr2, Pr3).
Dis- Meaning
play
[An] Analogue
[bAr] bar
[Eco] ECO mode
[Frc] Force
[HY] Hysteresis
[in] Setpoint value
Note
[Loc] Lock
[n.Hi] Switch normally
closed
[n.Lo] Switch normally
open
[OFS] Offset
[out] Actual value
[PA] Kilo pascal
[Pin] Pin code
5
[Pr1] Preset 1
[Pr2] Preset 2
3
[Pr3] Preset 3
[PSi] psi
2
[rES] Reset
(factory setting)
[rnG] Range
[Snr] Display series
number
[SOF] Display software
version
[SP] Switching point
[SP.H] Switching point high Top switching point (see section 5.3)
OUT
[SP.L] Switching point low
[SP.O.] Set point ok
[unL] Unlock
Threshold value
Note comparator
Window comparator
[._..] ECO mode activated
6 bar 10 bar
0.06 ... 6 bar 0.1 ... 10 bar
Preset
1 2 3
< 0.5 l ~ 0.5 l > 0.5 l
Description
Output: Analogue
Pressure unit
Display switch-off (adjustable)
Manual setpoint input
Spread, switch difference
When  key is pressed (1 sec.), [in]
appears. When the key is released,
the setpoint value is displayed.
Input blocked with Pin code
Contact (normally closed)
Contact (normally open)
Zero point lift (output pressure
without setpoint value)
When  key is pressed (1 sec.), [out]
appears. When the key is released,
the actual value is displayed.
Pressure unit (in KPa !)
Enter value for locking (1 ... 999)
(see section 5.1)
(see section 5.1)
(see section 5.1)
Pressure unit
Switch on device with pressed
 +  + Edit keys. Observe the
instruction in chapter 10.
Pressure range adjustment
Switch on device with pressed
 + Edit keys: Series number is
displayed to 6 places, first [xxx.] than
[xxx], alternating approx. 2 sec.
Switch on device with pressed
 + Edit keys: Software version
appears
(see section 5.3)
Bottom switching point
(see section 5.3)
Setpoint value reached
(see section 5.3)
Lock removed
(see section 5.3)
(see section 5.3)
After x seconds (adjustable), a line
moves through the display [._..]