Festo VPPL, Operating Instructions

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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
1 Flange (concealed)
2 Service interface
3 Display and operating components
4 Output connection actual value
(M12 plug)
5 Input connection setpoint
value/power supply (M12 plug)
6 Product labelling
7 M5 thread for earthing screw
(functional earth - FE)
8 Sleeve - threaded connection G¼
(only for VPPL-3Q-Z)
Fig. 1 VPPL-3Q/VPPL-3Q-Z
VPPL-3L
1 Service interface
2 Display and operating components
3 Output connection actual value
(M12 plug)
4 Input connection setpoint
value/power supply (M12 plug)
5 Product labelling
6 M5 thread for earthing screw
(functional earth - FE)
7 Sleeve - 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
+49 711 347-0
www.festo.com