Festo DFPI-xxx-ND2P-E-NB3 Series User manual

Translation of the original instructions
1 About this document
This document describes the use of the above-mentioned product.
1.1 Further applicable documents
– Operating instructions for proximity sensor
– Assembly instructions for connecting cable
– Assembly instructions for adapter kit
– Certification documents
– Operating conditions for explosion protection
All available documents for the product èwww.festo.com/pk.
2 Safety
2.1 General safety instructions
– Only use the product in original status without unauthorised modifications.
– Only use the product if it is in perfect technical condition.
– Use only proximity sensors approved for the product.
– Take into consideration the ambient conditions at the location of use.
– Observe labelling on the product.
Operating medium
– Only use compressed air in accordance with the specifications
è 15 Technical data.
– Use only unlubricated compressed air under normal conditions. Once the
product has been used with lubricated compressed air, it must continue to be
operated with lubricated compressed air only.
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 returned 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 legal requirements for the handling of hazardous substances
and the transport of dangerous goods.
2.2 Intended use
The linear drive DFPI-...-E-NB3... is intended for regulation in process systems. It is
particularly appropriate for pneumatic positioning under harsh operating condi-
tions.
2.3 Target group
The document is targeted towards individuals who mount and operate the
product. It is additionally targeted towards individuals who are entrusted with the
planning and application of the product in a safety-oriented system.
3 Further information
– Accessories èwww.festo.com/catalogue.
– Spare parts èwww.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 Product design
The linear drive consists of a double-acting pneumatic cylinder with integrated
displacement encoder. For mounting, the linear drive has a mounting interface in
accordance with ISO15552 at the bearing cap and the connection cap.
5.1.1 Design of DFPI-...-ND2P-E-NB3P
1Housing
2Air duct
3Earth terminal
4Mounting interface in accordance
with ISO15552
5Mounting kit interface for external
positioner
6Retaining screw for cover
7Retaining screw for housing
8Electrical and pneumatic connec-
tion (under the protective cap)
9Piston rod with mounting thread
for accessories
10 Spanner flat
11 Bearing cap
12 Tie rod
13 End cap
Fig. 1 DFPI-100-...-ND2P-E-NB3P
8088101
DFPI-...-ND2P-E-NB3
Linear drive
8088101
2018-04c
[8088103]
Instructions| Operating
Festo AG & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
[phone]
www.festo.com

5.1.2 Design of DFPI-...-ND2P-E-NB3P9/M12...
1Plug M12x1, A-coded
2Pneumatic connection Gy (extend
piston rod)
3Pneumatic connection Gy (retract
piston rod)
4Air duct
5Cable connector M16x1.5
Fig. 2 DFPI-100-…-ND2P-E-NB3-P9/M12
5.2 Function
Pressurising and exhausting the cylinder chambers causes the piston rod connec-
ted to the piston to move back and forth.
The integrated displacement encoder transmits the current piston position to the
higher-order system as an analogue voltage signal.
G
Fig. 3
Proximity sensors can be installed by means of an adapter kit for additional binary
sensing of positions èwww.festo.com/catalogue.
6 Transport and storage
WARNING!
Danger of crushing. Danger of shearing.
Body parts can be crushed or severed if the product falls.
• Use appropriate load handling equipment.
• Do not use the air duct as a handhold for carrying.
– When dispatching used products: Comply with all legal requirements for the
handling of hazardous substances and the transport of dangerous goods. For
return to Festo è 2.1 General safety instructions.
– Remove all attachments.
– Store the product in a cool, dry, UV-protected and corrosion-protected envir-
onment. Ensure that storage times are kept to a minimum.
7 Assembly
Any mounting position is allowed.
1. Remove all transport packaging. The material used in the packaging has been
specifically chosen for its recyclability (exception: oil-impregnated paper =
residual waste).
2. Mount the drive with the retaining screws on the bearing cap/end cap. Tight-
en the retaining screws evenly.
– Tightening torques è Tab. 1.
Piston diameter Tightening torque [Nm]
100 10
125 24
160 70
Piston diameter Tightening torque [Nm]
200 70
250 150
320 250
Tab. 1
When using additional proximity sensors
NOTICE!
When linear drives are installed too close to each other, the cylinder magnet can
disturb the proximity sensor on the adjacent linear drive.
1. Mount sensor bracket on the tie rod.
– Tightening torque: 0.6...1Nm
2. Mount the proximity sensors è 1.1 Further applicable documents.
3. Check minimum distances to ferritic and magnetic materials. Place the drive
so that undisturbed operation is possible.
4. Mount the drive.
When mounting accessory parts on the piston rod
1. Attach accessory parts to the male thread of the piston rod (è Fig.1,9).
2. Tighten nut and accessories.
8 Installation
8.1 Pneumatic installation
8.1.1 DFPI-...-ND2P-E-NB3P
1Pneumatic connection: Retract pis-
ton rod
2Pneumatic connection: Extend pis-
ton rod
Fig. 4
1. Prepare pneumatic connection.
– Check the necessity of check valves. These will prevent the moveable
mass from sliding down if there is a drop-in pressure when the product is
in a vertical or inclined mounting position.
– Use outside-calibrated pneumatic lines with outside diameter of 8mm
(e.g. plastic tubing PUN-8x1,25 from Festo).
– Cut tubing ends at right angles and without burrs. This avoids damage to
internal O-rings.
2. Connect the linear drive to the compressed air connections è Fig.4.
– Pay attention to the desired direction of movement of the piston rod.
– Plug the tubing into the push-in fitting up to the stop.
– Check that the tubing is securely held by pulling gently on it.
8.1.2 DFPI-...-ND2P-E-NB3P/M12
1. Remove protective caps from the compressed air connections.
2. Connect pneumatic connecting cables (Gy) to the compressed air connec-
tions è Fig.2.
8.2 Electrical installation
WARNING!
Risk of injury due to electric shock.
• For the electric power supply, use only PELV circuits that ensure a reliable
electric disconnection from the mains network.
• Observe IEC60204-1/EN60204-1.

8.2.1 DFPI-...-N2DP-E-NB3P
1Retaining screws
2Seal (O-ring)
3Opening for electrical and pneu-
matic connection (M32x1.5)
Fig. 5 Housing
Pin Housing assignment Plug
1 Operating voltage–
2 Slider signal (piston position)
3 Operating voltage +
Tab. 2
1. Select appropriate electrical connecting cable.
– At least 3-wire with cable end sleeves; outside diameter: 6.5...8mm
– Conductor cross section: 0.75…1.5mm"
2. Loosen the retaining screws (è Fig.5,1) and carefully remove the housing.
3. If present, loosen the cable connector of the connecting cable.
4. Disconnect the pre-assembled plug at the electrical connection (2 screws).
5. Guide the electrical connecting cable through the passage in the housing
(è Fig.5,3) and wire it to the plug è Tab. 2.
6. Mount the wired plug on the electrical connection.
– 2 screws, tightening torque: 0.5Nm±10%
7. Mount the housing onto the drive. Make sure that the seal (O-ring) is seated
correctly.
– Tightening torque for the retaining screws: 2.7Nm±10%
8. Connect the earth terminal (è Fig.1,3) to the earth potential with low
impedance (short cable with large cross-section).
8.2.2 DFPI-...-ND2P-E-NB3P9/M12...
For the version with M12 plug/M16 cable connector, the manifold block is fully
assembled.
M12 plug
• Connect electrical supply to the M12 plug è Tab. 3.
Pin Assignment for DFPI-...-ND2P-E-
NB3M12
Plug
1 Operating voltage +
2 Not assigned
3 Operating voltage–
4 Slider signal (piston position)
5 Not assigned
Tab. 3
M16 cable connector
Fig. 6
1. Remove retaining screws from the cover è Fig.1,6.
2. Disconnect the pre-assembled plug at the electrical connection.
3. Select appropriate electrical connecting cable:
– At least 3-wire with cable end sleeves
– Outside diameter: 4.5…10mm
– Conductor cross section: 0.75…1.5mm"
4. Guide the electrical connecting cable through the M16 cable connector.
5. Tighten the cable connector.
– Tightening torque: 10Nm
6. Wire the plug (è Tab. 4) and mount on the electrical connection.
– Tightening torque: 0.5Nm_10%
7. Mount the cover on the end cap. Make sure that the seal (O-ring) is seated
correctly.
– Tightening torque for the retaining screws: 8Nm
8. Connect the earth terminal to the earth potential with low impedance (short
cable with large cross-section).
Pin Housing assignment Plug
1 Operating voltage–
2 Slider signal (piston position)
3 Operating voltage +
Tab. 4
9 Commissioning
Requirements
– The drive is fully mounted and connected.
Commissioning the drive
1. Check operating conditions and limit values è 15 Technical data.
2. Provide power supply (operating medium, operating voltage).
3. Check correct function at first with a low travel speed.
10 Operation
WARNING!
Risk of injury due to unexpected movement of components.
Body parts in the movement range of the piston can be crushed or severed.
• Protect the positioning range from unwanted intervention.
• Keep foreign objects out of the positioning range.
• Observe the operating conditions.
• Observe the permitted limit values.
11 Maintenance
When used as intended, the product is maintenance-free.
12 Malfunctions
NOTICE!
Repairs to the product are not permissible. In the event of malfunctions or failure:
Replace the product and let Festo know about the failure. Return defective
products to Festo.

Fault description Cause Remedy
Piston rod does not move in the
desired direction
Displacement encoder cable
incorrectly connected at posi-
tioning controller or DFPI.
Correct the connection
Piston rod does not move in the
desired direction
Compressed air connections
connected incorrectly
Correct the connection
Tab. 5
13 Dismounting
1. Switch off the power supply (operating medium, electricity).
2. Disconnect electrical and pneumatic connections.
3. Undo the retaining screws of the drive and remove the drive.
14 Disposal
• Observe the local regulations for environmentally friendly disposal.
• Dispose of the product in an environmentally friendly manner. When doing
this, also take residual media into account (recycling of hazardous waste
where appropriate).
15 Technical data
DFPI-... -100 -125 -160 -200 -250 -320
Type of mounting Mounting interface in accordance with ISO15552
Spanner size of the piston
rod
22 27 36 36 46 55
Stroke [mm] 40…990
Min./max. stroke allowance [mm] 0…4
Design Piston rod, cylinder barrel
Cushioning No cushioning
Mounting position Any
Mode of operation Double-acting
Position sensing With integrated displacement encoder
Measuring principle of dis-
placement encoder
Potentiometer
Operating voltage range [VDC] 0…15
Independent linearity [%FS] _ 0.04
Hysteresis [mm] 0.33
Repetition accuracy [mm] _ 0.12
Resistance value of displacement encoder (on the T.E.P.) dependent on the stroke length1)
≤ 290mm [kΩ] 5
> 290…590mm [kΩ] 10
> 590…990mm [kΩ] 20
Recommended current at the displacement encoder
Recommended slider current [µA] < 0.1
Max. short-time slider current [mA] 10
Electrical connection – DFPI-...-P: 3-pin; straight plug; screw terminal
– DFPI-...-M12: Plug M12x1, A-coded
– DFPI-...-P9: Cable connector M16x1.5, 3-pin;
straight plug; screw terminal
Pneumatic connection – DFPI-...-P: For tubing O.D. 8mm
– DFPI-...-P9/M12: Air connection Gy
Operating pressure [bar] 3…8
Nominal operating pressure [bar] 6
Operating medium Compressed air to ISO8573-1:2010 [7:4:4]
Note on the operating medi-
um
Lubricated operation possible (in which case lubricated
operation will always be required)
Degree of protection - in
mounted state
IP65, IP67, IP69K, NEMA 4
Ambient temperature [°C] –20…+80
Product weight
Basic weight with 0mm
stroke
[g] 4900 7500 12800 18100 31100 57700
Additional weight per 10mm
stroke
[g] 90 134 200 238 358 582
Moving mass with 0mm
stroke
[g] 1060 1900 3700 4800 9300 16500
Additional weight of moving
mass per 10mm stroke
[g] 28 53 89 89 134 227
Information on materials
Cylinder barrel Anodised wrought aluminium alloy
Cap (end cap) Coated wrought aluminium alloy
Bottom cap (bearing cap) Coated die-cast aluminium
Tie rods High-alloy stainless steel
Piston rod High-alloy stainless steel
Flange screws/nuts Coated steel
Screws – Coated steel
– High-alloy stainless steel
Rod bearing Sintered bronze
DFPI-... -100 -125 -160 -200 -250 -320
Piston rod seal PUR NBR
Static seal NBR
Note on materials – DFPI-...-P: free of paint-wetting impairment sub-
stances, RoHS-compliant
– DFPI-...-P9/M12: contains paint-wetting impair-
ment substances, RoHS-compliant
Vibration resistance to
DIN/IEC 68, Part 2-6
0.35mm travel at 0…60Hz; 5g acceleration at
0…150Hz
Continuous shock resistance
to DIN/IEC68, Part 2-82
_15g at 6ms duration; 1000 shocks per direction
1) T.E.P. = theoretical electrical path
Tab. 6 Technical data
15.1 Max. permissible lateral forces for static applications
NOTICE!
In controlled operation, it may be necessary to adjust the max. lateral force to the
type of control.
Horizontal installation
Fig. 7
Vertical installation
Æ 100
Æ 125
Æ 160/200
Æ 250
Æ 320
Fig. 8