Festo VPPI S1D Series User manual

VPPI-...-S1D
Proportional-pressure regulator
Manual
8151670
2021-09a
[8151672]

Translation of the original instructions

Festo — VPPI-...-S1D — 2021-09a
3
Table of contents
1 Applicable documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Intended use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Training of qualified personnel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3Additional information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4 Product overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4.1 Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4.2 Product design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5 Transport and Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6 Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.1 Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.1.1 Linkage of valves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.1.2 Creating pressure zones. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6.2 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.2.1 Mounting via bottom of valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.2.2 Mounting via valve side surface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.2.3 Mounting on H-rail. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.3 Mechanical installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7.1 Pneumatic installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7.2 Electrical installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.1 Parameterisation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.1.1 Function of the Operating Buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.1.2 Menu Levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8.1.3 Contents of the menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
9 Malfunctions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9.1 Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9.2 Fault clearance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
10 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
11 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

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Product overview
1 Applicable documents
Document Product Contents
Operating
instructions
Proportional-pressure regulator VPPI-...-S1D Assembly, Installation, Oper-
ating
Test report1) Proportional-pressure regulator VPPI-...-T Determined accuracies
1) Only if the test report was selected in the configurator when ordering the product. Available in the Support Portal by entering the
product key.
Tab. 1: Applicable documents
All available documents for the product è www.festo.com/sp.
2 Safety
2.1 Safety instructions
–Only use the product in its original condition without unauthorised modifications.
–Only use the product if it is in perfect technical condition.
–Take into account the ambient conditions at the location of use.
–Before working on the product, switch off the power supply and secure it against being switched on
again.
–Before changing parameters in the menu, read the manual of the proportional-pressure regulator.
–If the parameter set ‘Custom’ is selected, pressure may briefly rise at the working port up to the
supply pressures. This is independent of any set limit values ‘Pressure min’/‘Pressure max’.
2.2 Intended use
The proportional-pressure regulator is intended to regulate a pressure proportional to a specified
setpoint value.
The product may generate high frequency interference, which may require interference suppression
measures in residential areas.
2.3 Training of qualified personnel
Work on the product may only be carried out by qualified personnel who can evaluate the work and
detect dangers. The qualified personnel have skills and experience in dealing with electropneumatic
(open-loop) control technology.
3 Additional information
–Contact the regional Festo contact if you have technical problems è www.festo.com.
–Accessories and spare parts è www.festo.com/catalogue.
4 Product overview
4.1 Function
A built-in pressure sensor records the pressure at the working port and compares this value with
the setpoint value. In the event of deviations between the setpoint value and actual value, the valve
regulates until the outlet pressure has reached the setpoint value.

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Assembly
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VPPI -...- 3 -...
(normally closed)
VPPI -...- 4 -...
(normally open)
Tab. 2: Pneumatic Circuit Symbol
4.2 Product design
1
2
3
4
5
6
Fig. 1: Product design
1
Display
2
Operating buttons Display menu
3
Plug M12
4
Working air port (2)
5
Exhaust air port (3)
6
Compressed air port (1)
5Transport and Storage
–Store the product in a dry, UV- and corrosion-protected environment.
–Ensure short storage times.
6 Assembly
6.1 Assembly
6.1.1 Linkage of valves
Up to 5 valves can be linked. The connecting kit VAME-P18-K-P5 is required for linking
è www.festo.com/catalogue.
The connecting kit consists of 2 square nuts, 2 socket head screws and an O-ring.
1. Remove the plug screw and sealing material from the duct (1).

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Assembly
2. Insert the O-ring into the duct (1) between 2 valves.
3. Connect the valves on the underside using socket head screws and square nuts. Tightening
torque: 1.2 ± 0.2 Nm

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Assembly
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4. Connect valves at the rear using socket head screws and square nuts. Tightening torque:
1.2 ± 0.2 Nm
6.1.2 Creating pressure zones
For separating pressure zones, connect the compressed air supply to both ends of the valve manifold.
For pressure zone separation, the plug screw can be left in duct (1) of the valve. Plug screws for duct
(1) can also be ordered as accessories (VAME-P18-BP-G18-P5) è www.festo.com/catalogue.
•Screw the plug screw into the duct (1) of the selected valve. Screw in the plug screw until it is
flush with the surrounding surface.

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Assembly
6.2 Mounting
6.2.1 Mounting via bottom of valve
Fig. 2: Mounting via bottom of valve with M4 screws/M4 screws and square nuts
6.2.2 Mounting via valve side surface
Fig. 3: Mounting via side with internal M4 screws/M4 through screws
6.2.3 Mounting on H-rail
Fig. 4: Individual valve

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Installation
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6.3 Mechanical installation
1. Make sure there is sufficient space for the connecting cable and tubing connections.
ÄThis will prevent kinks from forming in the connecting cables and the tubing.
2. Place the valve as close to the consumer as possible.
ÄThis improves control precision and reduces response times.
7 Installation
7.1 Pneumatic installation
Valves for standard operation (overpressure)
1. Attach the tubing to the connections:
–Compressed air (1)
–Working air (2)
2. Fit a silencer at the exhaust air connection (3) or provide for ducted exhaust air.
Valves for vacuum operation or combined vacuum and overpressure operation (VPPI-...-1V...H-...)
1. Attach the tubing to the connections:
–Vacuum (3)
–Working air (2)
2. Connect a compressed air supply to port (1) or mount a silencer to protect the valve from coarse
dirt particles.
7.2 Electrical installation
WARNING
Risk of injury due to electric shock.
• For the electric power supply, use SELV or PELV circuits that guarantee a reliable electric disconnec-
tion from the mains network.
• Observe IEC 60204-1/EN 60204-1.
1. If a screened cable is used: earth the shield at the cable end away from the valve.
2. Install electrical connecting cable without squeezing, kinking or stretching.
3. Tighten the electrical connecting cable onto plug M12. Tightening torque: maximum 0.3 Nm
Connection Pin Allocation Wire colour1)
(NEBU-M12...)
Analogue Alternative (digital
input)
1 + 24 V DC + 24 V DC BN
2 Setpoint value (-) DI1 WH
3 GND GND BU

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Commissioning
Connection Pin Allocation Wire colour1)
(NEBU-M12...)
Analogue Alternative (digital
input)
4 Setpoint value
(+)/PWM
DI0 BK
5 Actual value output
–related to pin 2 "Set-
point value (-)" for
type VPPI-...-V...
–related to pin
3 "GND" for
VPPI-...-A...
DI2 GY
1) Colour code in accordance with IEC 60757:1983-01
Tab. 3: Pin allocation for M12 plug, 5-pin
8Commissioning
Requirements:
–The valve is mounted.
–The pneumatic and electrical installation must be complete and tested.
1. Check operating conditions and critical limits è 11 Technical data.
2. Switch on the power supply.
3. Switch on the compressed air supply.
4. Parameterise valve.
8.1 Parameterisation
The valve can be parameterised in the display menu using the 3 operating buttons.
8.1.1 Function of the Operating Buttons
The basic functions of the operating buttons are:
Press Middle Button:
–Navigate one menu level deeper.
–Accept edited value.
Hold Middle Button for 3 s (or No Button Press for More than 60 s):
–From any menu level back to the start screen (if a value is currently being edited, it is not accepted).
Press Left / Right Button:
–Navigate within a menu level.
Navigate to the Menu Item ‘Exit’with the Left or Right Pushbutton and Confirm with the Middle
Pushbutton:
–Navigate one menu level higher.

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8.1.2 Menu Levels
Fig. 5: Menu levels (excerpt)
8.1.3 Contents of the menu
Menu level 2 ‘Input’
Menu option Contents Description
‘Input type’ ‘Analog’/‘Digital’ Appears only for voltage variants. For current var-
iants, ‘Input type’ = ‘Analog’.
–‘Analog’: An analogue voltage / current value via
setpoint value (+) and setpoint value (-) deter-
mines the setpoint pressure.
–‘Digital’: One of 8 setpoint values is specified via
three digital 24 V inputs. For this, the three inputs
are interpreted as a binary number with 3 bit.
The assignment is as follows:
–Setpoint value (+): DI0 or least significant bit
–Setpoint value (-): DI1
–Actual value output: DI2 or most significant bit
The value 000 means 0 bar and cannot be edited; the
remaining 7 values can be set in ‘Input values’. There
is no actual value output in this mode.
‘Input unit’ [V/mA/]/[bar/kPa/psi]/
%
Appears only if ‘Input type’ = ‘Analog’.
Determines the unit in which the setpoint value is
displayed on the main screen.

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Menu option Contents Description
‘Input max’ e.g. 5 V Appears only if ‘Input type’ = ‘Analog’.
Upper limit of the analogue setpoint value range
‘Input min’ e.g. 0 V Appears only if ‘Input type’ = ‘Analog’.
Lower limit of the analogue setpoint value range
‘Ramp-up-time’ ‘Off’/X ms
X=
75/125/250/500/
750/1000/1500/
2000
Setpoint jumps upwards are filtered with a low-pass
filter. The set value is the time constant (tau) in milli-
seconds.
‘Ramp-down-time’ ‘Off’/X ms
X=
75/125/250/500/
750/1000/1500/
2000
Setpoint jumps downwards are filtered with a low-
pass filter. The set value is the time constant (tau) in
milliseconds.
Exception: With the variants VPPI-… -… L… H-…,
exhausting to 0 bar is always carried out as quickly
as possible. If deceleration is desired, the pressure
must first be exhausted to a pressure of ³ 1 % FS.
‘Force input’ e.g. 50 % With this, a setpoint value between 0 … 100 % of
the parameterised pressure range can be specified
directly via the menu. During this specification, the
setpoint input is ignored.
‘Exit’ – –
Tab. 4: "Input"

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Menu level 2 ‘Input values’
The menu option ‘Input values’ only appears if ‘Input type’ = ‘Digital’ has been selected.
Menu option Contents Description
‘Value 001’ e.g. 6 bar Setpoint value, if value of the digital inputs = 001
‘Value 010’ e.g. 6 bar Setpoint value, if value of the digital inputs = 010
‘Value 011’ e.g. 6 bar Setpoint value, if value of the digital inputs = 011
‘Value 100’ e.g. 6 bar Setpoint value, if value of the digital inputs = 100
‘Value 101’ e.g. 6 bar Setpoint value, if value of the digital inputs = 101
‘Value 110’ e.g. 6 bar Setpoint value, if value of the digital inputs = 110
‘Value 111’ e.g. 6 bar Setpoint value, if value of the digital inputs = 111
‘Exit’ – –
Tab. 5: "Input values"
One of 8 setpoint values is specified via three digital 24 V inputs. For this, the three inputs are
interpreted as a binary number with 3 bits.
The assignment is as follows:
• Setpoint value (+): DI0 or least significant bit
• Setpoint value (-): DI1
• Actual value output: DI2 or most significant bit
The value 000 means 0 bar, the remaining 7 values can be set in ‘Input values’.

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Commissioning
Menu level 2 ‘Output’
The menu option ‘Output’ only appears if ‘Input type’ = ‘Analog’ has been selected.
Menu option Contents Description
‘Output type’ ‘Analog’/‘Digital’ Appears only for voltage variants. For current var-
iants, ‘Output type’ = ‘Analog’.
–‘Analog’: The current actual pressure is output as
an analogue voltage / current value via the actual
value output.
–‘Digital’: A digital 24 V signal is output via the
actual value output, which switches as soon as the
actual value is within the parameterised limits.
‘Output max’ e.g. 5 V Appears only if ‘Output type’ = ‘Analog’.
Upper limit of the electrical actual value output in
analogue mode
‘Output min’ e.g. 0 V Appears only if ‘Output type’ = ‘Analog’.
Lower limit of the electrical actual value output in
analogue mode
‘Digital out’ ‘High OK’/‘Low OK’ Appears only if ‘Input type’ = ‘Digital’.
Switchover of the meaning of high or low signal at
the digital output:
–‘High OK’:High is output if the actual value lies
within the parameterised limits.
–‘Low OK’:Low is output if the actual value lies
within the parameterised limits.
‘Hysteresis +/-’ E.g. 0.200 bar Appears only if ‘Input type’ =‘Digital’
Setting of the limits for the digital output. The set
value corresponds to the maximum deviation from
the setpoint value, which is evaluated as OK for the
digital output.
‘Output delay’ E.g. 100 ms Appears only if ‘Input type’ =‘Digital’
Delayed output of edge changes at the actual
value output in order to filter short status changes
(for example with setpoint value jumps). Shorter
pulses than defined in ‘Output delay’ are not output.
‘Exit’ – –
Tab. 6: "Output"

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Commissioning
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Menu level 2 ‘Pressure’
Menu option Contents Description
‘Pressure unit’ bar/kPa/psi Pressure unit in which all pressures are displayed.
‘Pressure max’ e.g. 5 bar Appears only if ‘Input type’ = ‘Analog’.
Upper limit of the pressure regulation range
‘Pressure min’ e.g. 1 bar Appears only if ‘Input type’ = ‘Analog’.
Lower limit of the pressure regulation range
‘Exit’ – –
Tab. 7: "Pressure"
Menu level 2 ‘Parameters’
Menu option Contents Description
‘Parameter set’ ‘Small’/‘Large’/
‘Flow/’‘Custom’
Setting the control response
–‘Small’: Standard set for all applica-
tions. Optimised for closed volumes of
100 ml to approx. 750 ml. For larger volumes,
‘Small’ results in a gentler control response than
‘Large’. For applications with flow rate, ‘Small’ is
only suitable to a limited extent (< 100 l/min)
–‘Large’: Optimised for closed volumes (³ 750 ml
on 1 m tubing, Æ 8 mm). Faster adjustment of
pressure jumps.
–‘Flow’: Designed for flow rate applications. Quieter
control response thanks to greater hysteresis. Can
also be used for closed volumes.
–‘Custom’: Individual adaptation to larger volumes
or applications with longer/thinner tubing or con-
strictions within the application.
‘Reference run’ ‘Start’ Appears only if ‘Parameter set’ = ‘Custom’ è Execu-
tion of Homing.
‘Tune pres incr’ e.g. 5200 ‘Tuning pressure increase’ appears only if ‘Parameter
set’ = ‘Custom’.
Setting of the tuning parameter for pressure jumps
upwards.

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Commissioning
Menu option Contents Description
‘Tune pres decr’ e.g. 5600 ‘Tuning pressure decrease’ appears only if ‘Param-
eter set’ = ‘Custom’.
Setting of the tuning parameter for pressure jumps
downwards.
‘Exit’ – –
Tab. 8: "Parameters"
Parameter Set ‘Custom’
If the parameter set ‘Custom’ is selected, brief pressure rises up to the input pressure are possible at
the working port. This is independent of any set limit values (‘Pressure min’/‘Pressure max’) During
the regulation process and during homing, the complete input pressure or the vacuum present at the
exhaust port can be present at the working port.
If the application and the tuning parameters do not match, an uncontrolled response is possible (con-
tinuous oscillation, continuous maximum or minimum pressure at the working port). If the application
is changed, the tuning parameters must be adjusted.
The parameter set ‘Custom’ permits individual adjustment/optimisation of the control response for an
application. This adjustment permits greater pressure dynamics in the face of a constriction than a
standard controller can. This considerably reduces settling times for pressure jumps. The two required
model parameters (‘Tuning increase’/‘Tuning decrease’) can be determined automatically via homing.
The determined model parameters can also be adjusted manually afterwards. Free entry of these two
model parameters without homing is also possible.

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1 2
3
Fig. 6: Pressure jump in standard regulator (basic representation)
1Target pressure
2Valve pressure at the working port
3Pressure in the working volume

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Commissioning
1 2
3
Fig. 7: Pressure jump preset "Custom" (basic representation)
1Target pressure
2Valve pressure at the working port
3Pressure in the working volume
Execution of Homing
1. Connect application (connected volumes, tubing, air consumption and supply pressure must
correspond to the working conditions).
2. Activate parameter set ‘Custom’.
3. Select ‘Reference run’ menu item.
ÄA warning appears.
4. Confirm warning with the middle pushbutton.
5. Use the arrow keys to change from the menu item ‘Cancel’ to the menu item ‘Start’ and confirm
with the middle pushbutton.
ÄHoming starts.
6. Wait until ‘Successful’ or ‘Failed’ is displayed.
Homing typically takes 30 … 40 s.
ÄThe result ‘Successful’ indicates that homing has automatically determined tuning parame-
ters. The result ‘Failed’ indicates that homing has failed.

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Possible causes of a failed homing (‘Failed’):
–Lack of supply pressure (working pressure does not reach ‘Pressure max’.)
–Application too fast (no bottleneck)
–Extremely slow application (very large volume, very long tubing)
In these cases, the parameter set ‘Custom’ can be used by manually entering the parameters ‘Tune
pres incr’/‘Tune pres decr’.
Manual adjustment / free entry of the tuning parameters:
The physical meaning of ‘Tune pres incr’/‘Tune pres decr’ corresponds to that of a master value for the
pressurisation or exhaust process. If the tuning parameter is increased, the control response becomes
gentler. If the tuning parameter is reduced, the control response becomes more aggressive.
Menu level 2 ‘Display’
Menu option Contents Description
‘Pin code’ 0000 … 9999 Protect device against accidental parameter
changes.
Pin 0000 switches off pin sensing.
‘Sleep timeout’ ‘Off’/X s, X min
X=
5/10/20/40 s
1/3/5 min
Deactivation/activation of sleep mode.
If there is no key input in the set time, the valve
switches from the main screen to sleep mode,
whereby reduced information is displayed on a dark-
ened screen. This setting has no influence on the
pressure regulation function.
‘Rotate’ ‘Off’/90°/180°/–90° Rotates the entire display on the screen for operation
with the installation turned.
‘Graph’ ‘Accuracy Graph’/‘Full-
scale Graph’
Displays a deviation graph or a full-scale graph on
the main screen.
‘Main value’ ‘Pressure’/‘Setpoint’ Highlights either the actual value or the setpoint
value on the main screen.
‘Exit’ – –
Tab. 9: "Display"

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Malfunctions
9 Malfunctions
9.1 Diagnostics
Error text in the display Fault description Remedy
‘Overheat’ Working temperature is too
high. Valve is in temperature
shut-off.
Switch off the valve, let it
cool down and restart. Reduce
ambient temperature or temper-
ature of medium.
‘Cable break’ Cable break setpoint input Check connection to setpoint
generator.
Replace electrical connecting
cable.
‘Oscillation’ Continuous vibration detected. Select another parameter set
for application.
‘No air supply’ No input pressure p1.
Setpoint value not reached.
Increase input pressure p1.
Maintain permissible maximum
operating pressure è 11 Tech-
nical data.
‘DC-supply low’ Supply voltage is too low. Increase supply voltage.
‘DC-supply high’ Supply voltage is too high. Reduce supply voltage.
‘Heat protection’ Temperature critical, power
reduction active.
Reduce ambient temperature
or temperature of medium.
Ensure sufficient compressed
air supply.
‘High deviation’ Setpoint value not reached.
Input pressure p1 is too low.
Air consumption at the working
port is too high.
Increase input pressure p1.
Maintain permissible maximum
operating pressure è 11 Tech-
nical data.
‘Setpoint high’ Analogue setpoint value is too
high.
Correct setpoint value.
Tab. 10: Error text in the display