Linear drive
DFPI-...-ND2P-E-NB3P
Festo AG & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 347-0
www.festo.com
Translation of the original instructions
8076535
2017-12b
[8076537]
Linear drive DFPI-...-ND2P-E-NB3P
English
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For all available product documentation
è
www.festo.com/pk
1
Design
1
2
3
aA
aB
8
4
aJ
9
5
6
7
4
1
Housing
2
Air duct
3
Earth terminal
4
Mounting interface in accordance
with ISO 15552
5
Mounting kit interface for external
positioner
6
Housing mounting screw
7
Electrical and pneumatic
connection (under the protective
cap)
8
Piston rod with mounting thread
for accessories
9
Spanner flat
aJ
Bearing cap
aA
Tie rod
aB
End cap
Fig. 1
The DFPI-...-ND2P-E-NB3P linear drive consists of a double-acting pneumatic cylin
der with integrated displacement encoder.
The electrical and pneumatic connections are protected from outside mechanical
influences by a sturdy housing. A pre-assembled connecting cable with protective
conduit is available as an accessory.
For mounting, the DFPI-...-ND2P-E-NB3P has a mounting interface in accordance
with ISO15552 at the bearing cap and the connection cap.
A aide range of accessories is available for the product
(
è
www.festo.com/catalogue).
Product variants and type code
Characteristic
Value
Description
Type
DFPI
Regulated drive for process automation
Piston diameter
100, 125, 160,
200, 250, 320
Piston diameter can be selected in steps;
specifications in [mm]
Stroke
x
x = Length [40 to 990 mm]
Cushioning
N
No cushioning
Displacement encoder
D2
Analogue
Method of measurement P
Potentiometer
Attachment position of
controller
E
External (no controller integrated)
Standard
NB3
Based on ISO 15552
Connection type
P
Protected pneumatic connections
Fig. 2
2
Safety
Intended use
The DFPI-...-ND2P-E-NB3P linear drive is intended for regulation in process en
gineering systems. It is particularly appropriate for pneumatic positioning under
rough operating conditions.
– The product may only be used in its original status without unauthorised
modifications.
– Only use the product if it is in an excellent technical status.
– Use only proximity sensors approved for the product.
– Take into consideration the operating conditions at the location of use.
– Observe the specifications on the product labelling.
– Comply with all applicable national and international regulations.
Operating medium
– Use only compressed air in accordance with the specifications (
è
Technical
data).
– Use only unlubricated compressed air under normal conditions. Once the pro
duct has been used with lubricated compressed air, it must continue to be ope
rated with compressed air only.
Drive
Impermissible lateral forces on the piston rod can damage the piston rod bearing.
– Do not exceed the maximum permissible lateral forces on the piston rod
(
è
– Guide the piston rod, if necessary, to avoid start-up oscillations.
Return to Festo
Hazardous substances can endanger the health and safety of personnel and cause
damage to the environment. To prevent hazards, the product should only be retur
ned upon explicit request by Festo.
– Consult your regional Festo contact.
– Complete the declaration of contamination and attach it to the outside of the
packaging.
– Comply with all of the legal requirements for the handling of hazardous
substances and the transport of dangerous goods.
3
Function
Pressurising and venting of the cylinder
chambers cause the piston rod connected
to the piston to move to and fro.
The integrated displacement encoder
transmits the current piston position to the
higher-level system as an analogue voltage
signal.
Fig. 3
Proximity sensors can be installed by means of an adapter kit for additional binary
sensing of positions (Accessories
è
www.festo.com/catalogue).
4
Transport and storage
Warning
Danger of crushing! Danger of shearing!
The product without accessories weighs up to about 56
kg, depending on the
product version.
Body parts can be crushed or severed if the product falls.
Use appropriate load handling equipment.
Do not use the air duct as a handle for carrying.
When shipping used products: Comply with all legal requirements for handling
hazardous substances and transporting dangerous goods.
For return to Festo
è
Remove all attachments.
Store the product in a cool, dry, UV- and corrosion-protected environment.
Ensure storage times are short.
