Festo VPPL User manual

Translation of the original instructions
© 2020 all rights reserved to Festo SE & Co. KG
1 About this document
1.1 Applicable documents
All available documents for the product èwww.festo.com/sp.
Feature
VPPL-3Q Operating instructions PREL
Tab. 1
2 Safety
2.1 Safety instructions
– Only use the product in original status without unauthorised modifications.
– 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 consideration the ambient conditions at the location of use.
– Use the valve only in the flow direction indicated.
– This product can generate high frequency interference, which may make it
necessary to implement 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 should only be conducted by qualified personnel.
The specialized personnel must be familiar with the installation and operation of
electrical and pneumatic control systems.
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 Further information
– Accessories èwww.festo.com/catalogue.
– Spare parts èwww.festo.com/spareparts.
4 Service
Contact your regional Festo contact person if you have technical questions
èwww.festo.com.
5 Product overview
5.1 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 outlet pressure is reduced to 0bar.
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.
5.2 Structure
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
1Flange (concealed)
2Service interface
3Display and operating components
4Output connection actual value
(M12 plug)
5Input connection setpoint
value/power supply (M12 plug)
6Product labelling
7M5 thread for earthing screw
(functional earth - FE)
8Sleeve - threaded connection G¼
(only for VPPL-3Q-Z)
Fig. 1 VPPL-3Q/VPPL-3Q-Z
VPPL-3L
1Service interface
2Display and operating components
3Output connection actual value
(M12 plug)
4Input connection setpoint
value/power supply (M12 plug)
5Product labelling
6M5 thread for earthing screw
(functional earth - FE)
7Sleeve - threaded connection G¼
Fig. 2 VPPL-3L
8143556
VPPL
Proportional pressure regulator valve
8143556
2020-09c
[8143558]
Operating instructions
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
[phone]
www.festo.com

5.2.1 Display and operating components
1LED status (red/green) status
indicator
2LED stiff (blue) fast control reac-
tion
3LED normal (blue) normal control
reaction
4LED smooth (blue) precise control
reaction
5DOWN pushbutton
6EDIT pushbutton
Fig. 3 Display and operating components
6 Assembly
6.1 Mounting
Requirements:
– The piping is unpressurised and there is no medium flowing through it.
– The supply lines are clean and free of wear-causing particles.
– 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
Fig. 4 VPPL and PREL
• Flange-mount the VPPL on the PREL.
– Provide a mounting clearance for cable connection and tubing connec-
tions.
– Tightening torque for retaining screws: 3.8Nm ±10%
7 Installation
7.1 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 reliable separation 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.
– Max. length of the signal lines is 30m.
– The cables are not crushed, kinked or stretched during installation.
2. Screw the signal cable to the "Output actual value" connection.
– Tightening torque 0.5Nm ±20%
Pin Cable colour1) Allocation M12 plug
1 – not assigned
2 white (WH) Analogue Out+(actual
value)
3 – not assigned
4 black (BK) Analogue Out– (actu-
al value)
5 grey (GY) FE
1) When using the pre-assembled Festo cables
Tab. 3 Pin allocation for "Output actual value" connection
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.
– Tightening torque 0.5Nm ±20%
Pin Cable colour1) Allocation M12 plug
1 brown (BN) 24VDC
2 white (WH) Analogue In+ (set-
point value)
3 blue (BU) 0 V
4 black (BK) Analogue In– (set-
point value)
5 grey (GY) FE
1) When using the pre-assembled Festo cables
Tab. 4 Pin allocation for "Input setpoint value/power supply" connection
8 Commissioning
8.1 Initial start-up
Requirements:
– For VPPL-3L (sleeve version):
– The VPPL is completely connected and ready for operation.
– For VPPL-3Q (flange version):
– The VPPL is flange-mounted to the PREL.
– The PREL is completely connected and ready for operation.
1. Switch on the supply voltage.
2. Switch on operating pressure.
3. Switch on the voltage for the setpoint signal.
4. Start the VPPL and PREL together.
5. Select parameter set for the closed-loop controller.
– Press and hold the EDIT pushbutton for 3 seconds.
The LED for the current controller setting flashes blue (factory setting:
normal control behaviour).
– Select the desired parameter set with the DOWN pushbutton.
The LED of the required parameter set flashes blue.
– Press EDIT pushbutton.
The selection is accepted, and the LED is steady blue.
8.2 Re-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.
1. Set setpoint value to zero.
2. Apply supply pressure.
3. Set required setpoint value.
9 Operation
Status LED Display Description
green Steady light Electronic control OK
Flashing light Undervoltage or overvoltage.
The valve is no longer operational in this status.
The error is cancelled by a correct power supply.
red
Steady light Malfunction, valve failure
off off Valve not ready for operation
Tab. 5
10 Maintenance
Prior to all maintenance work
1. Switch off analogue setpoint signal.
2. Switch off the operating voltage and secure it against being switched on
again.

3. Depressurise the valve.
4. Allow the device to cool down.
10.1 Cleaning
Regularly clean the outside of the product with a soft cloth. The approved clean-
ing agent is water or detergent (max. 50°C).
11 Malfunctions
11.1 Fault clearance
Malfunction Display Possible cause Remedy
Status LED is not
on
No supply voltage Check supply voltageVPPL does not react.
- Device faulty Replace device
Valve exhausts to 0bar. - Supply cable broken Replace cable
Hardware error, electron-
ics
Replace deviceOutput stage is switched
off, error bit is set, valve
exhausted to 0bar
Status LED steady
red
VPPL cable break with
setpoint value signal for
current
Replace cable
Power supply under-
voltage<17V
Increase power supply to
>20V
Output stage is switched
off, error bit is set, valve
exhausted to 0bar
Status LED flash-
ing red
Supply pressure not
present.
See section
è 8.2 Re-commissioning
Tab. 6
12 Disassembly
WARNING!
Risk of injury from compressed air/pressure surge.
Products under pressure can cause personal injury.
• Before carrying out any work on the product, switch off the compressed air
supply and secure it against being switched back on.
1. Switch off pressure to the pneumatic system.
2. Switch off analogue setpoint signal.
3. Switch off supply voltage and lock switch to prevent reactivation.
4. Allow the device to cool down.
5. Disconnect VPPL electrical connections.
6. Decommission the PREL.
7. Disconnect VPPL mechanical mounting.
13 Disposal
ENVIRONMENT!
Dispose of the product and packaging according to the applicable provisions of
environmentally sound recycling.
14 Technical data
14.1 Technical data, general
VPPL-…-0L20H VPPL-…-0L40H
Design Proportional-pressure regulator
Mounting position As desired, preferably with display compon-
ents facing upwards (solenoid coil should not
be upside down)
Type of mounting Flange and thread
Operating medium Filtered, unlubricated compressed air, grade of
filtration min. 40µm
Max. permissible input pressure [MPa] 4 5
[psi] 580 725
[bar] 40 50
Control range [MPa] 0.02…2 0.04…4
[psi] 2.9…290 5.8…580
[bar] 0.2…20 0.4…40
Control precision, standard2% [MPa] 0.04 0.08
[psi] 5.8 11.6
[bar] 0.4 0.8
Max. total leakage when new [l/h] <20
Nominal width
Pressurisation [mm] 2.5
Exhaust [mm] 2.5
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
Residual ripple [%] max. 10
Max. power consumption [W] 24
Signal setpoint value DC (analogue input)
Voltage [V] 0…10
VPPL-…-0L20H VPPL-…-0L40H
Current [mA] 4…20
Input resistance setpoint value
-V1 [kΩ] ³ 100
-A4 [Ω] £ 100
Signal actual value DC (analogue output)
Voltage [V] 0…10
Current [mA] 4…20
Load resistance (analogue output)
-V1 [kΩ] ³ 1
-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 Not PWIS-free
Tab. 7
14.2 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. 8 Electrical data and ambient conditions UL/CSA