Festo VPPL User manual

VPPL
Proportional pressure regulator valve
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Deutschland
[phone]
www.festo.com
Operating instructions
8171488
2022-02d
[8171490]
Translation of the original instructions
© 2022 all rights reserved to Festo SE & Co. KG
1Applicable documents
All available documents for the product è www.festo.com/sp.
Document Product Contents
Operating instructions Pressure regulator PREL VPPL
Tab. 1: Applicable documents
2Safety
2.1 Safety instructions
–Only use the product in its original condition without unauthorised modifica-
tions.
–Only use the product if it is in perfect technical condition.
–Only use media in accordance with the specifications è Technical data.
–Operation with fluids or gases is prohibited.
–Take into account the ambient conditions at the location of use.
–Use the valve only in the indicated flow direction.
–The product may generate high frequency interference, which may require
interference suppression measures in residential areas.
2.2 Intended use
The proportional-pressure regulator VPPL is exclusively intended for regulation of
a pressure proportional to a specified setpoint value.
The flange-mounted version of the proportional-pressure regulator VPPL with and
without external pilot air supply may only be operated in combination with the
pressure regulator PREL.
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.
2.4 UL/CSA Certification
In combination with the UL inspection mark on the product, the information in this
section must also be observed in order to comply with the certification conditions
of Underwriters Laboratories Inc. (UL) for USA and Canada.
UL/CSA Certification Information
Product category code QUYX, QUYX7
File number E322346
Considered standards UL 61010-1
CAN/CSA C22.2 No. 61010-1
UL mark
Tab. 2: UL/CSA Certification Information
WARNING
The unit shall be supplied by a power source which fulfils the requirements on a
limited-energy circuit in accordance to IEC/EN/UL/CSA 61010-1 or on a Limited
Power Source (LPS) in accordance to IEC/EN/UL/CSA 60950-1 or IEC/EN/UL/CSA
62368-1 or a Class 2 circuit in accordance to NEC or CEC.
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
The output pressure of the pressure regulator PREL is applied to the working
port of the proportional-pressure regulator VPPL. An integrated pressure sensor is
used to measure the output pressure and it is compared with a setpoint value. If
there are deviations, the VPPL actuates the controller of the PREL until the output
pressure has reached the setpoint value.
Safety setting
If a cable breaks, the output pressure is reduced to 0 MPa.
The VPPL interprets setpoint signals less than 1% of full scale as 0 V. In this case
the working pressure is set to ambient pressure.
4.2 Configuration
The proportional-pressure regulator VPPL is available in three versions:
–Flange-mounted version VPPL-3Q
–Flange-mounted version with external pilot air supply VPPL-3Q-Z
–Sleeve version VPPL-3L
VPPL-3Q/VPPL-3Q-Z
1
2
3
4
5
6
7
8
Fig. 1: VPPL-3Q/VPPL-3Q-Z
1
M5 thread for earthing screw,
functional earth - FE
2
Only with VPPL-3Q-Z: sleeve -
threaded connection
3
Flange, concealed
4
Service interface
5
Display and control elements
6
Output connection actual value
M12 plug
7
Input connection setpoint value/
power supply, M12 plug
8
Product labelling

VPPL-3L
1
2
4
5
6
3
7
Fig. 2: VPPL-3L
1
Product labelling
2
M5 thread for earthing screw,
functional earth - FE
3
Output connection actual value
M12 plug
4
Sleeve - threaded connection
G1/4
5
Service interface
6
Display and control elements
7
Input connection setpoint value/
power supply, M12 plug
4.2.1 Display and control elements
1
2
3
4
5
6
Fig. 3: Display and control elements
1
[DOWN] key
2
LED "smooth": precise control
reaction
3
LED "normal": normal control
reaction
4
LED "stiff": fast control reaction
5
LED "status": status indicator
6
[EDIT] key
Display element Description
"Status" LED
Green light Electronic control OK
Flashing red Undervoltage or overvoltage
The valve is no longer operational in this status. The error is
cancelled by a correct power supply.
Red light Malfunction, valve failure
Off Valve not ready for operation
Smooth/Normal/Stiff LED
Blue light Parameter set selected
Off Valve not ready for operation
Tab. 3: Behaviour of the display elements
4.2.2 Connecting elements
M12 plug Pin Wire colour1) Allocation
1 – Not assigned
2 WH Analogue Out+(actual
value)
3 – Not assigned
4 BK Analogue Out– (actual
value)
5 GY FE
1) Colour code in accordance with IEC 60757:2021-06
Tab. 4: Pin allocation for "Output actual value" connection
M12 plug Pin Wire colour1) Allocation
1 BN 24 VD C
2 WH Analogue In+ (setpoint
value)
3 BU 0 V
4 BK Analogue In– (setpoint
value)
5 GY FE
1) Colour code in accordance with IEC 60757:2021-06
Tab. 5: Pin allocation for "Input setpoint value/power supply" connection
5 Assembly
5.1 Mounting
Requirements:
–The piping system is unpressurised and there is no medium flowing through it.
–The feed lines are clean and free of particles that cause wear.
–Shut-off valves for exhausting the system are installed in the compressed air
supply line.
–When combining the VPPL with the PREL, both products must have the same
valve variant in the type code.
–VPPL-…-1 with PREL-…-1
–VPPL-…-2 with PREL-…-2
–VPPL-…-x with PREL-…-x
•Flange-mount the VPPL on the PREL.
–Provide a mounting clearance for cable connection and tubing connections.
–Tightening torque for retaining screws: 3.8 Nm ± 10%
6 Installation
6.1 Electrical installation
WARNING
Risk of injury due to electric shock.
• For the electrical power supply with extra-low voltages, use only PELV circuits
that guarantee a reinforced isolation from the mains network.
•Observe IEC 60204-1/EN 60204-1.
NOTICE
The service interface is for diagnostics only. If this push-in connector is used to
operate the valve, the control electronics may be damaged.
• Never connect the service interface to a component that provides a power
supply.
• Always keep the service interface closed with a cover cap.
1. Before establishing the electrical connection, check the connecting cable:
–Use pre-assembled cables from Festo.
–The maximum length of the signal cables is 30 m.
–The cables are laid without being squeezed, kinked or stretched.

2. Screw the signal cable to the "Output actual value" connection è 4.2.2
Connecting elements.
–Tightening torque 0.5 Nm ± 20%
3. Earth the shielding at the end of the cable away from the product.
4. Screw the connecting cable to the "input setpoint value/power supply" con-
nection è 4.2.2 Connecting elements.
–Tightening torque 0.5 Nm ± 20%
7 Commissioning
WARNING
Risk of injury from compressed air/pressure surge.
Products under pressure can cause personal injury.
• Before applying the supply pressure set the setpoint value of the VPPL to zero.
Requirements:
–For the VPPL-3L sleeve version:
–The VPPL is completely connected and ready for operation.
–For the VPPL-3Q flange version:
–The VPPL is flange-mounted on the PREL.
–The PREL is completely connected and ready for operation.
1. Switch on the supply voltage.
2. Switch on the operating pressure.
3. Switch on the voltage for the setpoint value signal.
4. Start the VPPL and PREL together.
5. Select the parameter set for the closed-loop controller è 8 Operation.
The valve is ready for operation.
8 Operation
Setting parameter set
1. Press and hold the [EDIT] key for 3 seconds.
The "Status" LED flashes green.
2. Press the [DOWN] key repeatedly until the desired parameter set is selected.
3. Press the [EDIT] key.
The selection is accepted and the "Status" LED shows green.
The valve is ready for operation.
9 Maintenance
Prior to all maintenance work
1. Turn off the analogue setpoint signal.
2. Switch off the operating voltage and lock switch to prevent reactivation.
3. Depressurise the valve.
4. Allow the device to cool down.
9.1 Cleaning
Regularly clean the outside of the product with a soft cloth. The approved
cleaning agent is water or detergent (max. 50 °C).
10 Malfunctions
10.1 Fault clearance
Malfunction Display Possible cause Remedy
VPPL does not react. Status LED is not
on
No supply voltage Check supply voltage
- Device faulty Replace device
Valve exhausted to
0 MPa.
- Supply cable broken Replace cable
Output stage is switched
off, error bit is set, valve
exhausted to 0 MPa.
Status LED red Hardware error, elec-
tronics
Replace device
VPPL cable break with
setpoint value signal for
current
Replace cable
Output stage is switched
off, error bit is set, valve
exhausted to 0 MPa.
Status LED
flashing red
Power supply under-
voltage < 17 V
Increase power supply
to > 20 V
Supply pressure not
present.
è 7 Commissioning
Tab. 6
11 Disassembly
WARNING
Risk of injury from compressed air/pressure surge.
Products under pressure can cause personal injury.
• Before working on the product, switch off the compressed air supply and lock it
to prevent it from being switched on again.
1. Depressurise the pneumatic system.
2. Turn off the analogue setpoint signal.
3. Switch off supply voltage and lock switch to prevent reactivation.
4. Allow the device to cool down.
5. Disconnect the electrical connections of the VPPL.
6. Decommission the PREL.
7. Disconnect VPPL mechanical mounting.
12 Technical data
12.1 Technical data, general
VPPL-… -0L20H -0L40H
Design Proportional pressure regulator
Mounting position As desired, preferably display elements facing
upwards.
The solenoid coil must not be upside down.
Type of mounting Flange and thread
Operating medium Filtered, unlubricated compressed air, grade of
filtration min. 40 µm
Max. total leakage when new [l/h] < 20
Temperature of medium [°C] +5 … +50
Ambient temperature [°C] +5 … +50
Degree of protection in assembled status IP65 in accordance with EN 60529/
A1:2000-02
Operating voltage DC [V] 21.6 … 27.6
Max. residual ripple [%] 10
Max. power consumption [W] 24
Max. permissible input pressure
[MPa] 4 5
[bar] 40 50
[psi] 580 725
Control range
[MPa] 0.02 … 2 0.04 … 4
[bar] 0.2 … 20 0.4 … 40
[psi] 2.9 … 290 5.8 … 580
Control precision, standard 2%
[MPa] 0.04 0.08
[bar] 0.4 0.8
[psi] 5.8 11.6
Nominal width
Pressurisation [mm] 2.5
Exhaust port [mm] 2.5
Signal setpoint value DC, analogue input
Voltage [V] 0 … 10
Current [mA] 4 … 20
Input resistance setpoint value
VPPL-…-V1-… [kΩ] ³ 100
VPPL-…-A4-… [Ω] £ 100
Signal actual value DC, analogue output
Voltage [V] 0 … 10
Current [mA] 4 … 20
Load resistance (analogue output)
VPPL-…-V1-… [kΩ] ³ 1
VPPL-…-A4-… [Ω] £ 600
Materials
Housing Wrought aluminium alloy
Internal parts Stainless steel, brass, aluminium
Cover PAXMD6-GF50gr-P; PA6-GB20, GF10/gr-P
Seals HNBR
Lubrication Contains paint-wetting impairment sub-
stances1)
1) PWIS = paint-wetting impairment substances
Tab. 7: Technical data, general
VPPL-… -0L20H -0L40H
Linearity 2% Full Scale (FS)
Hysteresis 0.5% FS 1% FS
Reproducibility ±1% FS
Total accuracy 0.5% FS 1% FS
Temperature coefficient 0.04% /K
1) Maximum deviation, characteristic values determined at room temperature in accordance with ISO 10094.
Linearity refers to the ideal characteristic curve.
Tab. 8: Control characteristics1)
12.2 Technical data for UL/CSA certification
Electrical data and ambient conditions UL/CSA
Input current [A] Max. 0.44
Operating pressure [bar] Max. 0.8
Pollution degree 3
Humidity range [%] 0 … 90
Installation site for indoor use only
Max. installation height [m] 2000
Degree of protection The degree of protection IP65 is not UL-tested.
Tab. 9: Electrical data and ambient conditions UL/CSA