Festo VPPL Operating Instructions

VPPL
Proportional pressure regulator valve
Operating instructions
8171488
2022-02d
[8171490]
Translation of the original instructions
© 2022 all rights reserved to Festo SE & Co. KG
1 Applicable documents
All available documents for the product è www.festo.com/sp.
Document Product
Operating instructions Pressure regulator PREL
Tab. 1: Applicable documents
2 Safety
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.
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Deutschland
+49 711 347-0
www.festo.com
Contents
VPPL
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
3
2
1
Fig. 1: VPPL-3Q/VPPL-3Q-Z
M5 thread for earthing screw,
1
functional earth - FE
2 Only with VPPL-3Q-Z: sleeve -
threaded connection
3 Flange, concealed
4 Service interface
4
5
6
7
8
Display and control elements
5
Output connection actual value
6
M12 plug
7 Input connection setpoint value/
power supply, M12 plug
8 Product labelling