Festo VPPE-3-1-1/8-x-E1 Series User manual

Warning..................................................
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.
1Supply port (1)
2Electrical connection
3Status LED (green)
4Earth terminal, external (front and back side)
5Operating key upwards (UP)
6LED display
7Operating key downwards (DOWN)
8Edit key
9Pressure output (2)
aJ Venting (3)
aA Front fastening hole
aB Side fastening hole
1
2
35
6
4
7
8
9
aJ
aA
aB
1
aB
2
6
65
7
9
aJ
aA
4
4
Type: ...E1T
Type: ...E1
8
3
Fig. 1
Proportional pressure regulating valve en
..................
Note.......................................................
• 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.
Supply port
Setpoint value
Setpoint value
Pressure
output
Venting
Pin 5
2 Variants of the VPPE-...
Type code of the VPPE-...
VPPE-3- 1-1/8-6-010-E1T
123
Item Features Meaning
1Pressure regulation range:
2
6
10
0.02 … 2.0 bar
0.06 … 6.0 bar
0.1 … 10.0 bar
2Setpoint specification:
010
420
0 … 10 V (voltage)
4 … 20 mA (current)
3Control unit: E1
Type o f mounting: T
7-segment LED display
Supply manifold mounting
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,
temperatures and electric voltage).
• Makesurethereisasupplyofcorrectlyprepared
compressed air in accordance with the specifications on
the medium Technical specifications.
• Please observe the prevailing ambient conditions.
• Please comply with national and local safety laws and
regulations.
• Remove all transport packing, such as protective wax,
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
–ontheproduct
– in these operating instructions.
• Use the product in its original state without undertaking
any modifications.
4 Fitting
4.1 Mechanical
• Handle the VPPE-... with care so that the electrical
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 )orremovethe
exhaust with ducted tubing.
Note.......................................................
The position of the pneumatic connections depends on
the variant ordered.
4.3 Electrical
Note.......................................................
Make sure that the cable is laid as follows:
– not squashed
–notbent
–notstretched.
• Use accessories from Festo (see “Accessories”):
– plug socket with cable
or
– socket cable, ready-to-use.
This ensures that the specified protection class IP65
and EMC are achieved.
Note......................................................
To ensure EMC safety, the device must be earthed as
follows:
• Use the earth terminal (see Fig. 1).
• Use the following earthing accessories (included in
delivery):
– Self-cutting screw
– Flat plug
–Contactdisc
• Connect the circuitry of the VPPE-... as show in the
circuit diagram. Preferably use cable from Festo.
12
3
5
4
PIN no. Colour 1) VPPE
1brown +24 VDC
2white Analogue input – setpoint value / – w
3blue GND
4black Analogue input + setpoint value / + w
(0 … 10 V or 4 … 20 mA)
5grey Switch output (24 V) or
analogue output (0 … 10 V or 4 … 20 mA)
+ actual value / XOUT
1) Colour is only valid for accessory cable from Festo
5 Commissioning
Note......................................................
• 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.
Asaresult,aclearvalveconditionisassuredat
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 UV=24VDC±10%).
• 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
i
l
Output pressure range of the variant
p
si
g
nal ran
g
e2bar 6bar 10 bar
0…10Vor
4…20mA
0.02 … 2 bar 0.06 … 6 bar 0.1 … 10 bar
5.1 Recommended parameter sets
The valves in all pressure variants are set at the factory
with Preset 2.
Preset
d
t
i
Preset
recommendation 1 2 3
Consuming device volumes <0.5l ~0.5l >0.5l
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-
play
Meaning Description
[An] Analogue Output: Analogue
[bAr] bar Pressure unit
[Eco] ECO mode Display switch-off (adjustable)
[Frc] Force Manual setpoint input
[HY] Hysteresis Spread, switch difference
[in] Setpoint value When key is pressed (1 sec.), [in]
appears. When the key is released,
the setpoint value is displayed.
[Loc] Lock Input blocked with Pin code
[n.Hi] Switch normally
closed
Contact (normally closed)
[n.Lo] Switch normally
open
Contact (normally open)
[OFS] Offset Zeropointlift(outputpressure
withoutsetpointvalue)
[out] Actual value When key is pressed (1 sec.), [out]
appears. When the key is released,
the actual value is displayed.
[PA] Kilo pascal Pressure unit (in KPa !)
[Pin] Pin code Enter value for locking (1 … 999)
[Pr1] Preset 1 (see section 5.1)
[Pr2] Preset 2 (see section 5.1)
[Pr3] Preset 3 (see section 5.1)
[PSi] psi Pressure unit
[rES] Reset
(factory setting)
Switch on device with pressed
++ Edit keys. Observe the
instruction in chapter 10.
[rnG] Range Pressure range adjustment
[Snr] Display series
number
Switch on device with pressed
+ Edit keys: Series number is
displayed to 6 places, first [xxx.] than
[xxx], alternating approx. 2 sec.
[SOF] Display software
version
Switch on device with pressed
+ Edit keys: Software version
appears
[SP] Switching point (see section 5.3)
[SP.H] Switching point high Top switching point (see section 5.3)
[SP.L] Switching point low Bottom switching point
(see section 5.3)
[SP.O.] Set point ok Setpoint value reached
(see section 5.3)
[unL] Unlock Lock removed
Threshold value
comparator
(see section 5.3)
Window comparator (see section 5.3)
[._..] ECO mode activated After x seconds (adjustable), a line
moves through the display [._..]
VPPE-3-1-1/8-...-E1
(LED-Display)
Operating instructions
Original: de
Festo AG & Co. KG
Postfach
D-73726 Esslingen
Phone:
+49/711/347-0
www.festo.de
0909a 749 698

5.3 Configuring the output
Depending on the variant ordered, the actual vale is
displayed at the analogue output [An] 0 … 10V or
4…20mA.
If a switch output is chosen, the following modes can be
selected: Threshold value, window comparator, or SP.O..
Switching points (SP...) and hysteresis (HY)
The switching point is only active when a switching point
or window comparator is active.
The value of the hysteresis specifies the tolerance in
which the control deviation can move without causing a
singal change at the output (Pin 5).
Setting SP.O.
The SP.O. signal means that the setpoint value has been
reached in the range (+/-) of the set hysteresis.
With threshold value comparator setting
P
1
0
Hy
OUT
SP
OUTOUT
Switching characteristic (normally open)
P
1
0
SP
Hy
OUT
Switching characteristic NC (normally closed)
With window comparator setting
Hy Hy
P
1
0
OUT
SP.L SP.H
Switching characteristic (normally open)
P
1
0
OUT
SP.L SP.H
Hy Hy
Switching characteristic NC (normally closed)
With setting SP.O.
Hysteresis
Setpoint value
Actual value
SP.O. signal
U[V]
p[bar]
t
t
5.4 Display symbols menu
Notes on the following table:
[x.xx] = pressure display (actual value or setpoint value)
[ ... ] = Enter value (with flashing display)
– The main menu selction can be made in only one
direction with the Selection key .
– Within a menu option, the selection can usually be
made with the or key.
– If no selection is made within 10 sec. in the main
menu or 80 sec. within a menu option, the display
automatically jumps back to the basic position,
exception [Frc].
Menu = main menu selection
[x.xx] = value input (setpoint value/actual value)
Further in the menu = press Edit key
With flashing display (grey background) = selection
option with keys 
Change value [ ... ] = with keys 
Selection/save value = press Edit key
No. Menu Selection possibility 
1[x.xx] (1 sec.) = [in] (1 sec.) = [out]
2[Pr...]
[Pr...] Pr1 Pr2 Pr3
3[bAr]
[bAr] bAr PA PSI
4[OFS]
[ ... ]
5[rnG]
[ ... ]
6[Frc] 0.00 … 10.0 V (voltage variant)
4.00 … 20.0 mA (current variant)
[ ... ]
7[An]
[An] SP.O.
SP SP.L HY
[ ... ] [ ... ] [ ... ]
[ ... ] [ ... ] [ ... ]
HY SP.H [n.Lo/ n.Hi]
[ ... ] [ ... ] [n.Lo/ n.Hi]
[ ... ] [ ... ]
[n.Lo/ n.Hi] HY
[n.Lo/ n.Hi] [ ... ]
[ ... ]
n.Lo/ n.Hi
n.Lo/ n.Hi
8[Eco]
[OFF]
[OFF] [1 … 999] sec.
9[Pin]
[OFF]
[OFF] [1 … 999]
Back to
no. 1
6Operation
Note......................................................
• Make sure, when switching off the VPPE-... , that first
the set value voltage, then the supply voltage and
finally the supply pressure are switched off.
The green status LED lights up when the actual value is
equal to or in a range of ±1 % (FS) of the setpoint value.
Lock [Loc] – unlock [unL]
If a Pin code was entered with [Pin], [Loc] is shown in the
displayandtheeditmodeislockedviathePincode.
If a flashing [0] appears, enter the correct Pin. After the
correct Pin is entered, [unL] is displayed. If the entry is
incorrect, the VPPE jumps to the basic position.
7 Care and maintenance
• Clean the housing of the VPPE-... with a soft cloth only.
The permitted cleaning agent is a mild soap- water
solution, max. 50 °C.
8 Accessories
Note......................................................
You can find product accessories under:
http://www.festo.com/catalog
9 Eliminating faults
Fault Possible cause Remedy
VPPE-...
does not
r
e
a
c
t
No power,
LED does not light
Check connection of the
24 VDC power supply
react
No set value voltage Check control unit;
check connection
VPPE-... defective Sendthedevicetothe
Festo repair service
Flow volume
too low
Connection are
narrowing the flow
diameter (swivel fittings)
Use an alternative
connection
Pressure
increase too
slow
Large cylinder volumes
andlongtubinglength
– Choose different
parameter set
Pressure
constant
despite
changed
setpoint
input
– Break of the supply
cable(thelastoutput
pressure set remains
intact uncontrolled).
Slow pressure drop
due to leakage
– Too little supply
pressure p1
– Replace supply cable
– Increase supply
pressure
10 Reset to factory setting
Note......................................................
By resetting to factory setting, the current settings are
lost.
– If needed, note down these settings before
resetting.
Reset [rES] returns settings to factory setting. To do this,
press and hold the following keys “++Edit”andthen
switch on the device.
Then the following parameters are set:
Para-
meters
Setting / value
x.xx Permanent display (actual value/setpoint value)
Pr2 (universal control behaviour)
bar bar
OFS 000
rnG for 10 bar type: 10.0
for6bartype: 6.00
for2bartype: 2.00
Frc Display shows current pressure at pressure output (p2)
An Output: Analogue
Eco OFF
PIN OFF
11 Technical specifications
Type VPPE-3-1-1/8-...-E1
Design Proportional pressure regulating valve
Mounting position As desired, preferably vertical
(electronics upward)
Medium Filtered, non-lubricated compressed air
(filter fineness min. 40 μm), no
condensation allowed
Pressure ranges 2bartype 6bartype 10 bar type
– Permitted supply
pressure 3…4bar 6…8bar 6…11bar
– Control range 0.02 … 2 bar 0.06 … 6 bar 0.1 … 10 bar
Supply pressure p1 at least 1 bar above
output pressure p2
Standard rated flow see Fig. 2
Total leakage in new
condition
<5l/h
Connections G1/8
Rated width
– Pressurisation
–Venting
5mm
2.5 mm
Protection class IP65 in combination with connector socket
according to accessories.
Perm. temp. range
– Surroundings
–Storage
–Medium
0…+60°C
–10…+60°C
+10 … +50 °C
Electrical connection Plug contact M12x1, 5-pin
Permitted supply
voltage
24 VDC ±10 %
Setpoint value size
Input resistor
0…+10V/4…20mA
10 kΩ(voltage)/ 250 Ω(current)
Load actual value
output
min. 2 kΩ(voltage)
max. 500 Ω(current)
Linearity fault max. ±1 % FS (full scale) at 24 VDC and
25 °C
Residual ripple 10 %
Vibration and shock
–Vibration
–Shock
Tested as per DIN/IEC 68 / EN 60068
Part 2-6,
Severity class 2
Tested as per DIN/IEC 68 / EN 60068
Part 2-27,
Severity class 2
Power consumption max. 4.2 W
Electromagnetic
compatibility
– EMC interference
emission and
resistance
See conformity declaration
www.festo.com
CE conformity for industrial installations
fulfilled
Materials
–housing
–cover
– seals
–lubrication
Al
PA
NBR
silicon-free
Weight approx. 390 g
VPPE-3-1-1/8-6-...
VPPE-3-1-1/8-2-...
VPPE-3-1-1/8-10-...
Fig. 2