Festo VPE-1/8 Bedienungsanleitung

(en) Operating

instructions

Pressure/vacuum switch

(V)PE-1/8-...(-SW)

PE-PK-...(-SW)

8068554

2017-05c

[8068556]

(V)PE-...-...(SW )

Festo (V)PE-...-...(SW) 2017-05c

Original instructions

Symbols: Fitting and commissioning to be carried out

by qualified personnel only in accordance

with the operating instructions.

Warning, Caution

Please note

Antipollution

Accessories

English 3....................................................................

(V)PE-...-...(SW )

Festo (V)PE-...-...(SW) 2017-05c English 3

Pressure/vacuum switch

Type (V)PE-1/8-...(-SW), PE-PK-...(-SW)English

1 Operating parts and connections

1Compressed air or vacuum connection

– connecting thread G 1/8 with

(V)PE-1/8-...

– tubing connection with PE-PK-...

2Screw terminals for electrical connection

3Sub-base for mounting frame

4Through holes for fastening

5Through holes for cover cap (type see

section 9 “Accessories”)

6Cable for electrical connection

Fig. 1

(V)PE-...-...(SW )

Festo (V)PE-...-...(SW) 2017-05c English

Documentation on the product

For all available product documentation èwww.festo.com/pk

2 Product overview

Vacuum types

Vacuum

connection

Standard length for fitting

onto mounting fram

Electrical

connection

VPE-1/8 G1/8 1N Screw terminals

VPE-1/8-SW G1/8 1N Cables

VPE-1/8-2N G1/8 2N Screw terminals

VPE-1/8-2N-SW G1/8 2N Cables

Fig. 2

Overpressure types

Compressed

air connection

Standard length for fitting

onto mounting frame

Electrical

connection

PE-1/8-1N G1/8 1N Screw terminals

PE-1/8-2N G1/8 2N Screw terminals

PE-1/8-1N-SW G1/8 1N Cables

PE-1/8-2N-SW G1/8 2N Cables

PE-PK-3x2-2N PK-3 2N Screw terminals

PE-PK-4-SW PK-4 1N Cables

PE-PK-4 PK-4 1N Screw terminals

Fig. 3

(V)PE-...-...(SW )

Festo (V)PE-...-...(SW) 2017-05c English 5

3 Function and application

The (V)PE-... contains a chamber with a dia

phragm.

This diaphragm is subjected to pressure

forces (with PE-...)/tensile forces (with

VPE-...) on one side, and to the clamping force

of the springs on the other side. If the pres

sure or vacuum forces are increased in excess

of the clamping force, a piston connected to

the diaphragm will move and actuate a

changeover switch.

The (V)PE-... can be used as a normally-closed, normally-open or changeover

switch. It has been designed for converting pneumatic pressure values into electri

cal signals which are used for control or monitor functions.

4 Conditions of use

Please note

Incorrect handling can lead to malfunctioning.

SObserve the following instructions for the correct and safe use of the prod

uct.

SCompare the specified limits, e.g. pres

sures, forces and temperatures with your

individual application.

SMake sure that there is a supply of cor

rectly prepared compressed air.

STake into account the prevailing ambient

conditions.

SObserve the technical regulations as well

as relevant national and local laws.

Fig. 4

Fig. 5

LF-...

LR-...

40μm

C%mbar

Fig. 6

(V)PE-...-...(SW )

Festo (V)PE-...-...(SW) 2017-05c English

SRemove all packing material such as protective wax, foils, caps and cartons.

The individual materials can be disposed of in separate containers for recycling

purposes.

SUse the product in its original state without undertaking any modifications.

5 Fitting

Mechanical components

SSelect the suitable fastening method:

a) by means of through holes 4in the

housing or

b) by fitting into the following mounting

frames:

– NRRQ-1N for (V)PE-...-1N, PE-PK-4

– NRRQ-2N for (V)PE-...-2N.

SFasten the (V)PE-... in the intended posi

tion.

Pneumatic components

SConnect the (V)PE-... to the compressed

air tubing using the following compo

nents:

(V)PE-

1/8 PK-3-... PK-4-...

Screw connector

size G1/8

tubing

size 3

tubing

size 4

Maximum tighten

ing torque: 1 Nm

— —

Fig. 9

Fig. 7

Fig. 8

1 Nm

(V)PE-...-...(SW )

Festo (V)PE-...-...(SW) 2017-05c English 7

Electrical components

Using the (V)PE-... with screw terminals 2and an operating voltage of ≥ AC/DC

50V:

Warning

You will receive an electric shock if you touch unprotected conductive compo

nents.

SMake sure that the electrical connections are protected in accordance with IP

20 (as per EN 60529). A protective cap as per Accessories (see section 9) is

required here.

SWire the (V)PE-... as follows:

Connection Screw ter

minal (see

Fig. 10)

Cable

co

lours

PE-... VPE-...

Input

(common)

Input

(common)

1black

(BK)

Normally-

closed

contact

Normally-

open

contact

2 grey

(GY)

Normally-

open

contact

Normally-

closed

contact

4 blue

(BU)

Fig. 11

Basic position PE-... Basic position VPE-...

Fig. 12

The wire surface area of the connecting cable must be between 0.34 mm2and

1 mm2.

Fig. 10

(V)PE-...-...(SW )

Festo (V)PE-...-...(SW) 2017-05c English

Fastening the protective cap (type see section

9 “Accessories”)

SProceed as follows:

1. Insert the fastening pins into the

through holes 5.

2. Carefully press the protective cap

together until the hooks (A) and (B)

snap into place (do not break the

hooks off).

6 Commissioning

SSwitch on the operating voltage.

SPressurize the compressed air connection with the pressure required as the

switching pressure, or evacuate the vacuum required as the switching vacuum.

SCheck the function by modifying the pressure or vacuum applied.

7 Care and maintenance

Cleaning

SSwitch off the operating voltage.

SIf necessary, clean the (V)PE-....

Permitted cleaning agents are:

– soap suds (max. +60 °C)

– all non-abrasive agents.

Fig. 13

(A)

(B)

(V)PE-...-...(SW )

Festo (V)PE-...-...(SW) 2017-05c English 9

8 Dismantling and repairs

Dismantling

SSwitch off the following sources of power:

– the operating voltage

– the compressed air

– the vacuum.

Dismantling the protective cap (Type see

section 9 “Accessories”)

SProceed as follows:

1. Carefully press hook (A) outwards (do

not break off).

2. Press hook (B).

3. Pull the protective cap apart.

SDisconnect the relevant connections from

the (V)PE-... .

9 Accessories

Designation Type

Protective cap (not necessary for (V)PE-...-SW) SPE-B

Fastening bracket NRW-...

Barbed fitting N-...; CK-...; QSM-...

Mounting frame NRRQ-...

Fig. 15

Fig. 14

(A)

(B)

(V)PE-...-...(SW )

Festo (V)PE-...-...(SW) 2017-05c English

10 Eliminating faults

Fault Possible cause Remedy

(V)PE-... does not function Pressure failure Switch on compressed air

Connections not correct Connect (V)PE-... correctly

Short circuit at the switching out

puts

Eliminate short circuit

Damage due to excess pressure/

vacuum

Replace (V)PE-...

Incorrect operating voltage Apply correct operating voltage

(V)PE-... operated with non-per

mitted medium

Replace (V)PE and operate only

with compressed air/vacuum

Outputs no longer switch

back

(V)PE-... defective Return (V)PE-... to Festo

Fig. 16

11 Technical specifications

General specifications

Type (V)PE-...

Design Diaphragm actuator

Mounting position As desired

Operating medium – with PE: filtered, non-lubricated or lubricated

compressed air, filter fineness 40 μm

– with VPE: vacuum

Medium temperature

Ambient temperature

[°C]

0 ... 60

Operating voltage range AC/DC 12 ... 250

Minimum load current [mA] 100

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