Festo VPPI S1BT Series User manual

VPPI-...-S1BT
Proportional-pressure regulator
Manual
8156724
2021-11
[8156726]

Translation of the original instructions
Bluetooth®, WINDOWS® are registered trademarks of the respective trademark owners in certain
countries.

Festo — VPPI-...-S1BT — 2021-11
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Table of contents
1 About this document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Applicable documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Product labelling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Intended use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Additional information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Product overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.1 Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.2 Product design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5 Transport and Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6 Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.1 Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.1.1 Linkage of valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7.1 Pneumatic installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7.2 Electrical installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.1 Commissioning without using the Bluetooth interface. . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.2 Commissioning using the Bluetooth interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.2.1 Installing Festo Automation Suite. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8.2.2 Start screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8.2.3 Installing or updating plug-in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8.2.4 Using the plug-in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8.2.5 ‘Configuration’ parameter group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8.2.6 ‘Pressure range’ parameter group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8.2.7 ‘Set point’ parameter group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8.2.8 ‘Actual value’ parameter group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8.2.9 ‘Parameter set’ parameter group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8.2.10 ‘Parameter set’ ‘Custom’. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8.2.11 Execution of homing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8.2.12 ‘Delay function’ parameter group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9Malfunctions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.1 Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.2 Fault clearance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
10 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
11 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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Safety
1 About this document
1.1 Applicable documents
Document Product Contents
Operating
instructions
Proportional-pressure regulator
VPPI-...-S1/-S1BT
Assembly, Installation, Commis-
sioning
Test report1) Proportional-pressure regulator VPPI-...-T Accuracies determined by the
manufacturer
1) Available only if the test report was selected in the configurator when ordering the product. Accessible on the Festo website by
entering the product key.
Tab. 1: Applicable documents
All available documents for the product è www.festo.com/sp.
1.2 Product labelling
–Observe the specifications on the product.
Warning symbol
The following warning symbol is on the product VPPI-...-S1BT:
Symbol Meaning
Mechanical overload can cause the valve to malfunction. Under certain circumstances,
this malfunction will cause permanent energisation of the coils resulting in a hot sur-
face.
Tab. 2: Warning symbol
2Safety
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.
–The product variants VPPI-...-S1BT have a Bluetooth interface that is permanently active. Fuse
protection is therefore required.
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.

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Product overview
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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.
VPPI -...- 3 -...
(normally closed)
VPPI -...- 4 -...
(normally open)
Tab. 3: Pneumatic Circuit Symbol
4.2 Product design
17
2
3
4
56
Fig. 1: Product design (example VPPI)
1
LEDs control response
2
Operating keys control response
3
M12 plug
4
Working air port (2)
5
Exhaust air port (3)
6
Compressed air port (1)
7
Operating status LED

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Assembly
5 Transport 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 pneumatically linked. The connecting kit VAME-P18-K-P5 is required for the
linkage 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).
2. Insert the O-ring into the duct (1) between 2 valves.
3. Connect the valves on the bottom 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 the 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.
The plug screw can be left in the duct (1) of the valve for pressure zone separation.
Plug screws VAME-P18-BP-G18-P5 for the duct (1) can also be ordered as accessories
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
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.

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Installation
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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 only PELV circuits that ensure a reliable electric disconnection
from the mains network.
• Observe IEC 60204-1/EN 60204-1.
•The unit must be powered by a power source that fulfils the requirements of an energy-limited
circuit in accordance with IEC 61010-1/EN 61010-1.
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
4 Setpoint value (+)/PWM DI0 BK
5 Actual value output
–based on pin 2 "set-
point value (-)" for type
VPPI-...-V1-...
–based on pin 3 "GND" for
VPPI-...-A4-...
DI2 GY
1) Colour code in accordance with IEC 60757:1983-01
Tab. 4: Pin allocation for plug M12, 5-pin, A-coded

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Commissioning
8 Commissioning
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. If necessary, adjust the control response of the valve.
8.1 Commissioning without using the Bluetooth interface
Control response
The control response of the valve can be set using the operating buttons on the top of the valve è Fig.
1. The symbols above the operating buttons represent the control response of the valve.
Setting the control response
1. Hold middle button for 3 s.
2. Select the control response with the arrow keys.
ÄThe LED under the symbol of the selected control response lights.
3. Confirm the control response with the middle key.
Symbol Application recommendation
Designed for flow rate applications.
Standard preset for all applications. Optimised for closed volumes from
100 ml to approx. 750 ml.
Optimised for closed volumes of ³ 750 ml. Less suitable for volumes < 500 ml.
Tab. 5: Control response
8.2 Commissioning using the Bluetooth interface
The product variants VPPI-...-S1BT have a Bluetooth interface for parameterisation. The parameters
are set with the Festo Automation Suite plug-in.
The Bluetooth interface is permanently active. The Bluetooth connection must therefore be secured
against unauthorised access.
• Protect the Bluetooth connection with a password è 8.2.5 ‘Configuration’ parameter group.

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Commissioning
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8.2.1 Installing Festo Automation Suite
Administrator rights and a connection to the Internet are required for this action.
The requirement for the VPPI plug-in is WINDOWS 10, version 1909 or newer.
1. Download the Festo Automation Suite installation file from the Support Portal
è www.festo.com/sp.
2. Start installation by double-clicking on the installation file.
3. Follow instructions in the installation program.
ÄThe Festo Automation Suite is installed. The program starts automatically with the start
screen after successful installation depending on the selected option.
8.2.2 Start screen
Projects can be opened and functions that are frequently required at the start can be executed on the
start screen. The start screen is displayed by default when the Festo Automation Suite is started for
the first time.
1 2
Fig. 5: Start screen, example (version V2.2)
1
List of recently used projects
2
Start options and installations
The list of recently used projects provides quick access to recently used projects. The ‘Browse local
files’ button can be used to open a locally saved project from a directory in the file system.

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Commissioning
The Festo Automation Suite start options can be configured on the right:
–‘Last Used Project’ to open the last used project
–‘New Project’ to create and open a new project
–‘Device Scan’ to search all available Festo devices in the network
If one of the ‘Always perform this action on startup’ checkboxes is marked, the selected start option
will be executed automatically at the next start. The start screen is then no longer displayed when the
software is started.
This setting can be reset or changed è Festo Automation Suite Online Help.
Plug-ins can be installed directly from the start screen:
–‘Install Device Plug-ins’ for installing device-specific plug-ins è 8.2.3 Installing or updating plug-in
8.2.3 Installing or updating plug-in
The Festo Automation Suite automatically searches for updates of the plug-ins when it is started. The
automatic check for updates can be deactivated è Festo Automation Suite Online Help.
Plug-ins can be installed or updated as follows:
–Installation from the Internet
–Installation of a locally available plug-in
–Installation of a missing plug-in when adding a device
Installation from the Internet
Administrator rights and an Internet connection are required for this action.
Symbol Meaning
Backstage section
‘Repositories’ menu option
‘Search for updates’ button
Tab. 6: Symbols for the action steps
Search for a plug-in or the updates of a plug-in:
1. Open backstage section.
2. Open ‘Repositories’ menu option.
ÄThe ‘Plug-ins’ entry is displayed.

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Commissioning
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3. Click on the ‘Search for updates’ symbol.
ÄNew plug-ins and updates to existing plug-ins are searched for.
If the server is not found in the search:
–Check proxy settings and select the correct network (backstage section è menu option
‘Options’è section ‘Network proxy’).
–Repeat the process.
To display the release notes:
1. Select plug-in.
2. Click on the ‘Release Notes’ link.
ÄThe Release Notes are displayed.
To install a plug-in or update a plug-in:
1. Select plug-in.
2. Press ‘Install plug-in’ or ‘Update plug-in’ button.
ÄThe plug-in is downloaded and installed or updated.
If the requested installation data are not immediately available, the installation data are
prepared by the server. As soon as they are available, a notification will be displayed in the
Notification Center.
Installation of a plug-in from a locally available file
Administrator rights are required for this action.
Symbol Meaning
Backstage section
‘Repositories’ menu option
‘Install local file’ button
Tab. 7: Symbols for the action steps
1. Open backstage section.
2. Open ‘Repositories’ menu option.
ÄThe ‘Plug-ins’ entry is displayed.
3. Click on the ‘Install local file’ symbol.
4. Select and open plug-in (*.fsi) in the file system.
ÄThe plug-in is installed or updated.
Installation of a missing plug-in when adding a device
Administrator rights and an Internet connection are required for this action.

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Commissioning
1. Add device.
ÄThe software searches for a relevant plug-in locally first and then on the server in the
Internet.
2. Confirm installation with ‘Ok’ button.
ÄThe plug-in is installed.
If the server is not found in the search:
–Check proxy settings (backstage section è menu option ‘Options’ è section ‘Network
proxy’).
–Repeat the process.
8.2.4 Using the plug-in
The user interface of the VPPI plug-in can be divided into 4 sections.
1
2
3 4
Fig. 6: Overview of plug-in (example)
1
Context sections
2
Connection control
3
Parameter panels
4
Working section (here parameters of the
selected parameter panel)
Context sections
Navigation between different sections.
–‘Parameterisation’:
Parameter settings of the valve can be read out and changed here.
–‘Diagnosis’:
Diagnostic values such as temperature and switching cycle counter can be read out here.

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Commissioning
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Connection control
Establish a connection to a VPPI with a Bluetooth interface.
The connection to a VPPI with Bluetooth interface can be established via ‘Select Bluetooth device’ and
‘Connect’. When the connection is established, all parameters are compared with the valve and then
either the values from the offline settings in the plug-in or those from the valve are imported. As long
as the connection exists, valid parameter changes are effective immediately in the valve.
Parameter panels
Navigation between different parameter groups.
The parameters of the VPPI are divided into groups. There is a tab in which the parameters can be set
for every group.
Operating range
If the ‘Parameterisation’ context section is selected, parameters and their current settings are dis-
played in the working section. The appearance of the working section differs slightly for different
parameter groups.
If the ‘Diagnosis’ context section is selected, the corresponding diagnostic values are displayed in the
work area.
8.2.5 ‘Configuration’ parameter group
Fig. 7: ‘Configuration’ parameter group (example)

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Commissioning
Parameter Contents Description
‘Firmware version’ e.g. V4.4.0 The firmware version of the connected valve
‘Electrical interface’ ‘Voltage’/‘Current’ Indicates whether the analogue interfaces of the
valve communicate via voltage (0 … 10 V DC) or
current (0 … 20 mA). This parameter can be set
for offline configuration. This parameter cannot be
changed when a valve is connected.
‘Pressure type’ e.g. 0 … 10 bar The pressure range of the connected valve. This
parameter can be set for offline configuration. This
parameter cannot be changed when a valve is con-
nected.
‘Normal position’ ‘Normally open’/‘Nor-
mally closed’
Normal position of the connected valve.
This setting is hardware-specific and cannot be
changed.
‘Nominal width’ e.g. 5 Nominal width of the connected valve.
This setting is hardware-specific and cannot be
changed.
‘PIN’ e.g. 327891 6-digit PIN with which the valve can be protected.
This PIN is requested when connecting to the valve.
The plug-in cannot connect to the valve without
the correct PIN. There is no PIN query with setting
000000. The PIN can be reset using a "clip grip".
This requires pressing the two outer control buttons
for control response simultaneously for 1 s è Fig. 1.
‘Valve name’ e.g. VPPI-...-S1BT Bluetooth name of the valve. The valve uses the
name "VPPI_ [set name]" to establish the Bluetooth
connection.
‘Enable connect
sound’
– Setting for whether a sound should be generated
when establishing or disconnecting the Bluetooth
connection.
‘Identification
sound’
– The connected valve will beep and the LEDs will
flash.
Tab. 8: ‘Configuration’

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Commissioning
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8.2.6 ‘Pressure range’ parameter group
Parameter Contents Description
‘Pressure unit’ bar/MPa/psi Pressure unit in which all pressures are displayed.
‘Minimum pressure’ e.g. 1 bar Lower limit of the pressure regulation range.
‘Maximum pres-
sure’
e.g. 5 bar Upper limit of the pressure regulation range.
Tab. 9: ‘Pressure range’

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Commissioning
8.2.7 ‘Set point’ parameter group
Parameter Contents Description
‘Input type’ ‘Analog’/‘Digital’ –‘Analog’: the setpoint pressure is specified as an
analogue voltage/current value via the set value
input.
–‘Digital’: a digital 24 V signal is entered via the
setpoint input.
‘Maximum analog
setpoint’
e.g. 5 V Upper limit of the analogue setpoint value range.
The ‘Minimum analog setpoint’ > ‘Maximum analog
setpoint’ setting is not recommended.
‘Minimum analog
setpoint’
e.g. 0 V Lower limit of the analogue setpoint value range.
The ‘Minimum analog setpoint’ > ‘Maximum analog
setpoint’ setting is not recommended.
‘Pressure value
001’
e.g. 1.00 bar Setpoint value, if value of the digital inputs = 001
‘Pressure value
010’
e.g. 2.00 bar Setpoint value, if value of the digital inputs = 010
‘Pressure value
011’
e.g. 4.00 bar Setpoint value, if value of the digital inputs = 011
‘Pressure value
100’
e.g. 5.00 bar Setpoint value, if value of the digital inputs = 100
‘Pressure value
101’
e.g. 7.00 bar Setpoint value, if value of the digital inputs = 101
‘Pressure value
110’
e.g. 8.00 bar Setpoint value, if value of the digital inputs = 110
‘Pressure value
111’
e.g. 10.00 bar Setpoint value, if value of the digital inputs = 111
Tab. 10: Input values
If the ‘Digital’ input is selected, one of 8 setpoint values is specified via three 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 ‘Set point’ è Tab. 4 Pin allocation for
plug M12, 5-pin, A-coded.

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Commissioning
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8.2.8 ‘Actual value’ parameter group
Parameter Contents Description
‘Output type’ ‘Analog’/‘Digital’ Digital can only be selected for voltage variants.
‘Output type’ = ‘Analog’ is for current variants.
–‘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.
‘Minimum analog
output’
e.g. 0 V Lower limit of the electrical actual value output in
analogue mode.
The ‘Minimum analog output’ > "‘Maximum analog
output’ setting is not recommended.
‘Maximum analog
output’
e.g. 5 V Upper limit of the electrical actual value output in
analogue mode.
The ‘Minimum analog output’ > ‘Maximum analog
output’ setting is not recommended.
‘Digital output hys-
teresis’
e.g. 0.200 bar 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.
‘Digital output
delay’
e.g. 100 ms Delayed output of edge changes at the actual
value output in order to filter short status changes
(e.g. with setpoint value jumps). Shorter pulses than
defined in ‘Digital output delay’ are not output.
‘Digital output
logic’
‘High’/‘Low’ Switchover of the meaning of high or low signal at
the digital output:
–‘High’: ‘High’ is output if the actual value lies
within the parameterised limits.
–‘Low’: ‘Low’ is output if the actual value is within
the parameterised limits.
Tab. 11: Baseline values

20
Festo — VPPI-...-S1BT — 2021-11
Commissioning
8.2.9 ‘Parameter set’ parameter group
Parameter Contents Condition
‘Parameter set’ ‘Small volume’/
‘Flow’/
‘Large volume’/
‘Custom’
Setting of the control response
–‘Small volume’: default set for all appli-
cations. Optimised for closed volumes of
100 ml to approx. 750 ml. For larger vol-
umes, ‘Small volume’ results in a softer con-
trol response than ‘Large volume’. For appli-
cations with flow rate ‘Small volume’ is only
suitable to a limited extent (< 100 l/min)
–‘Large volume’: optimised for closed vol-
umes (³ 750 ml on 1 m tubing, Æ 8 mm).
Faster adjustment of pressure jumps.
–‘Flow’: designed for flow rate applications.
Softer control response due to greater hyste-
resis. Can also be used for closed volumes.
–‘Custom’: individual adaptation to higher
volumes or applications with longer/thinner
tubing or constrictions within the applica-
tion.
‘Tuning parameter
pressure increa-
sing’
e.g. 5200 ‘Tuning parameter pressure increasing’ appears
only if ‘Parameter set’ = ‘Custom’.
Setting of the tuning parameter for pressure
jumps upwards.
‘Tuning parameter
pressure decrea-
sing’
e.g. 5600 ‘Tuning parameter pressure decreasing’
appears only if ‘Parameter set’ = ‘Custom’.
Setting of the tuning parameter for pressure
jumps downwards.
‘Perform reference
run’ button
– Appears only if ‘Parameter set’ = ‘Custom’
è 8.2.11 Execution of homing.
Tab. 12: ‘Parameter set’
8.2.10 ‘Parameter set’ ‘Custom’
I the ‘Parameter set’ ‘Custom’ is selected, short-term pressure rises to the input pressure at the
working port are possible. This is independent of any set limit values (‘Minimum pressure’/‘Maximum
pressure’). The complete input pressure or the vacuum present at the exhaust port can be present at
the working port during the regulation process and during homing.
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.