Festo VPE-1/8 User manual

(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
2
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
1
2
3
4
56
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
4
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
6
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
a)
b)
4
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
8
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
5
(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
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]
[°C]
0 ... 60
0 ... 60
Operating voltage range AC/DC 12 ... 250
Minimum load current [mA] 100