Pepperl+Fuchs M-LBAS-IA1. E Series User manual

M-LBAS-IA1.*E,
F*-LBAS-IA1
Ethernet-APL Surge
Protector
Manual

With regard to the supply of products, the current issue of the following document is applicable:
The General Terms of Delivery for Products and Services of the Electrical Industry, published
by the Central Association of the Electrical Industry (Zentralverband Elektrotechnik und Elek-
troindustrie (ZVEI) e.V.) in its most recent version as well as the supplementary clause:
"Expanded reservation of proprietorship"
Worldwide
Pepperl+Fuchs Group
Lilienthalstr. 200
68307 Mannheim
Germany
Phone: [phone] - 0
E-mail: [e-mail]
North American Headquarters
Pepperl+Fuchs Inc.
1600 Enterprise Parkway
Twinsburg, Ohio 44087
USA
Phone: [phone]
E-mail: [email protected]
Asia Headquarters
Pepperl+Fuchs Pte. Ltd.
P+F Building
18 Ayer Rajah Crescent
Singapore 139942
Phone: [phone]
E-mail: [email protected]l-fuchs.com
https://www.pepperl-fuchs.com

M-LBAS-IA1.*E, F*-LBAS-IA1
Contents
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1 Introduction................................................................................................................ 4
1.1 Content of this Document............................................................................. 4
1.2 Target Group, Personnel ............................................................................... 4
1.3 Symbols Used ................................................................................................ 5
2 Product Specifications.............................................................................................. 6
2.1 Overview and Application............................................................................. 6
2.2 Use in PROFIBUS PA Applications............................................................... 9
2.3 Dimensions and Component Overviews ................................................... 10
2.3.1 F*-LBAS-IA1 .....................................................................................................................10
2.3.2 M-LBAS-IA1.*E................................................................................................................. 10
3 Installation................................................................................................................ 12
3.1 Installation Requirements........................................................................... 12
3.2 Mounting....................................................................................................... 12
3.3 Connection ................................................................................................... 13
3.3.1 Connection M-LBAS-IA.*E................................................................................................ 13
3.3.2 Conection F*-LBAS-IA1.................................................................................................... 15
4 Operation.................................................................................................................. 17
5 Dismounting, Maintenance, and Repair ................................................................ 18
5.1 Disconnection of the Surge Protectors ..................................................... 18
5.1.1 Disconnection M-LBAS-IA1.*E ......................................................................................... 18
5.1.2 Disconnection F*-LBAS-IA1 ............................................................................................. 19

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M-LBAS-IA1.*E, F*-LBAS-IA1
Introduction
1 Introduction
1.1 Content of this Document
This document contains information that you need in order to use your product throughout the
applicable stages of the product life cycle. These can include the following:
•Product identification
•Delivery, transport, and storage
•Mounting and installation
•Commissioning and operation
•Maintenance and repair
•Troubleshooting
•Dismounting
•Disposal
The documentation consists of the following parts:
•Present document
•Instruction manual
•Datasheet
Additionally, the following parts may belong to the documentation, if applicable:
•EU-type examination certificate
•EU declaration of conformity
•Attestation of conformity
•Certificates
•Control drawings
•Functional safety manual
•Additional documents
1.2 Target Group, Personnel
Responsibility for planning, assembly, commissioning, operation, maintenance, and dismount-
ing lies with the plant operator.
Only appropriately trained and qualified personnel may carry out mounting, installation, com-
missioning, operation, maintenance, and dismounting of the product.The personnel must have
read and understood the instruction manual and the further documentation.
Prior to using the product make yourself familiar with it. Read the document carefully.
Note
This document does not substitute the instruction manual.
Note
For full information on the product, refer to the instruction manual and further documentation on
the Internet at www.pepperl-fuchs.com.
Note
For specific device information such as the year of construction, scan the QR code
on the device. As an alternative, enter the serial number in the serial number search
at www.pepperl-fuchs.com.

M-LBAS-IA1.*E, F*-LBAS-IA1
Introduction
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1.3 Symbols Used
This document contains symbols for the identification of warning messages and of informative
messages.
Warning Messages
You will find warning messages, whenever dangers may arise from your actions. It is mandatory
that you observe these warning messages for your personal safety and in order to avoid prop-
erty damage.
Depending on the risk level, the warning messages are displayed in descending order as fol-
lows:
Informative Symbols
Action
1. This symbol indicates a paragraph with instructions.You are prompted to perform an action or
a sequence of actions.
Danger!
This symbol indicates an imminent danger.
Non-observance will result in personal injury or death.
Warning!
This symbol indicates a possible fault or danger.
Non-observance may cause personal injury or serious property damage.
Caution!
This symbol indicates a possible fault.
Non-observance could interrupt the device and any connected systems and plants, or result in
their complete failure.
Note
This symbol brings important information to your attention.

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M-LBAS-IA1.*E, F*-LBAS-IA1
Product Specifications
2 Product Specifications
2.1 Overview and Application
The Ethernet-APL Surge Protectors are designed to protect Ethernet-APL spur ports of Ether-
net-APL rail field switches and field devices against voltage surges and indirect lightning. The
design ensures Ethernet-APL network performance at 10 Mbit/s due to the compatibility of the
device to the Ethernet-APL Port Profile Specification. To be protected ports of rail field switches
and field devices need to be compliant to the Ethernet-APL Port Profile Specification which
requires to withstand a minimum differential peak electric current of 25 A for a pulse shape of
8µs / 20 µs according to IEC 61643-21.
The product family of Ethernet-APL surge protectors supports 2 different mounting options:
•M-LBAS-IA1.* DIN mounting rail version for cabinet installation
•F*-LBAS-IA1 thread type version for field mounting
The surge protectors are certified for use in intrinsically safe installations with type of protection
Ex ia. The devices may be located in hazardous area Zone 1, Zone 21, Zone 2, and Zone 22
according to the Ethernet-APL intrinsically safe concept 2-WISE specified in IEC TS 60079-47.
M-LBAS-IA1.* types are also certified for use in FISCO applications.
F*-LBAS-IA1 type surge protectors are additionally certified as flameproof for installation in
Zone 1 and Zone 2.
The surge protector F*-LBAS-IA1 for field mounting is designated to be installed directly at the
housing of field devices or in an adequate separate housing. Normally, the housing has two
opening. One is used to connect the spur cable through a cable gland, the other is used to
install the surge protector.
•The version FS-LBAS-IA1 is intrinsically safe with ISO M20 thread.
•The version FN-LBAS-IA1 is intrinsically safe with 1/2" NPT thread.
The surge protector M-LBAS-IA1.* for cabinet installation is intended to protect field switch
spur ports. The surge protectors are installed near to the field switch in a cabinet. The surge
protector are mounted on a 35 mm x 7.5 mm DIN mounting rail according to EN 60715. The
DIN mounting rail is used to attach the device in the switch cabinet and to ground the surge pro-
tectors.The DIN rail mounting ensures a ground connection for the device with the lowest pos-
sible resistance.
•M-LBAS-IA1.DE, intrinsically safe, shield directly connected to earth.
•M-LBAS-IA1.IE, intrinsically safe, shield connected to earth through a gas discharge tube
(GDT).
Note
For further information regarding Ethernet-APL refer to the "Engineering Guideline
Ethernet-APL."

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Product Specifications
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M-LBAS-IA1.IE
Figure 2.1 Circuit diagram M-LBAS-IA1.IE
M-LBAS-IA1.DE
Figure 2.2 Circuit diagram M-LBAS-IA1.DE
+APL+ (screw terminal 3+4)
-APL- (screw terminal 2+5)
SShielding (screw terminal 1)
+APL+
-APL-
SShield
+
-
S
+
-
S
P
protected side
U
unprotected side
Earth
+
-
S
+
-
S
P
protected side
U
unprotected side
Earth

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M-LBAS-IA1.*E, F*-LBAS-IA1
Product Specifications
F*-LBAS-IA1
Figure 2.3 Circuit diagram F*-LBAS-IA1
Cable Shield Grounding Concepts
The surge protectors for cabinet installation support the two cable shield grounding concepts
specified by Ethernet-APL (see also "Engineering Guideline Ethernet-APL").
M-LBAS-IA1.DE - Direct Grounding
Figure 2.4 Spur configuration with direct grounding of the cable shield at both ends
The direct grounding of the cable shield at the switch through the surge protector and the direct
grounding at the field device guarantees the highest rejection against electromagnetic interfer-
ences.The cable shield must be connected with low impedance to ground. Direct grounding at
both ends shall only be used if the equipotential bonding system of an installation is controlled
and equalized to prevent circulating electric currents.
+ (RD) Red wire, APL+
- (BK) Black wire, APL-
Earth (GN/YE) Green/yellow wire, earth
+ (RD)
- (BK)
Earth (GNYE)
Field Switch Port M-LBAS-IA1.DE Field Device F*-LBAS-IA1
APL +
APL -
Shield

M-LBAS-IA1.*E, F*-LBAS-IA1
Product Specifications
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M-LBAS-IA1.IE - Indirect Grounding
Figure 2.5 Spur configuration with indirect grounding of the cable shield at the switch port
The indirect grounding of the cable shield at the switch through the surge protector and direct
grounding at the field device is used if direct grounding of both ends of the cable shield is not
practical or could lead to shield ground loops or circulating electric currents.The surge protec-
tor version M-LBAS-IA1.IE does isolate in normal operation the shield from earth.The spur port
of the rail field switches couple capacitively the shield to earth. When a surge or lightning
occurs, the M-LBAS-IA1.IE discharges both leads and the cable shield to earth. The cable
shield at the field device must be connected directly to earth.
2.2 Use in PROFIBUS PA Applications
Optionally, PROFIBUS PA devices are connectable to the spur ports of the Ethernet-APL rail
field switch from Pepperl+Fuchs instead of Ethernet-APL field devices. Surge protectors for
Ethernet-APL and PROFIBUS PA are technically different. Only a surge protector for Ethernet-
APL can adequately protect an Ethernet-APL port and support its higher communication data
rate. A surge protector for PROFIBUS PA does not support higher communication data rates of
Ethernet-APL.
Combining the voltage protection of the switch spur port and Ethernet-APL surge protector pro-
vides adequate protection also for use with PROFIBUS PA.
Recommendation: To minimize the cost and effort for migration from a PROFIBUS PA to an
Ethernet-APL field device, use an Ethernet-APL surge protector to protect the field switch port
and a PROFIBUS PA surge protector to protect the field device. For the use in PROFIBUS PA
installations, Pepperl+Fuchs provides the surge protector version F*LBF-I1.32. When migrating
to an Ethernet-APL field device, only the surge protector at the field devices needs to be
replaced.
Field Switch Port M-LBAS-IA1.IE Field Device F*-LBAS-IA1
APL +
APL -
Shield

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M-LBAS-IA1.*E, F*-LBAS-IA1
Product Specifications
2.3 Dimensions and Component Overviews
2.3.1 F*-LBAS-IA1
Figure 2.6
2.3.2 M-LBAS-IA1.*E
Figure 2.7
22
22
55
1
2
Position Description Color
Cable cross sec-
tion Cable length
1APL+ Red 0.8 mm2100 mm
APL- Black 0.8 mm2100 mm
Earth Green/yellow 1.3 mm2100 mm
2FS-LBAS-IA1: M20 x 1.5 thread
FN-LBAS-IA1: 1/2"NPT thread
Dimensions
93
14.9 61
71

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Product Specifications
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Figure 2.8
Assembly
APL -
APL +
APL +
APL -
Front view Protected side
Unprotected side
shield
shield

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M-LBAS-IA1.*E, F*-LBAS-IA1
Installation
3Installation
3.1 Installation Requirements
Prior to mounting, installation, and commissioning of the device you should make yourself
familiar with the device and carefully read the instruction manual.
3.2 Mounting
Mounting M-LBAS-IA.*
Figure 3.1
1. Position the rail field switch on the DIN mounting rail.
2. Use the top hook in order to hook the electronics onto the DIN mounting rail.
3. Move the bottom hook over the lower end of the DIN mounting rail until the locking mechanism
engages.
The device is fixed on the DIN mounting rail.The ground connection is established.
Note
Only use a 35 mm x 7.5 mm DIN mounting rail.
1
2
3

M-LBAS-IA1.*E, F*-LBAS-IA1
Installation
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Mounting F*-LBAS-IA1
The surge protectors may be installed into a thread hole of a housing of the field device or an
appropriate enclosure.
1. To screw in the surge protector into the thread hole, use a 20 mm wrench.
3.3 Connection
3.3.1 Connection M-LBAS-IA.*E
Note
To prevent the device from coming loose in the thread and to ensure the
degree of protection., observe the following requirements:
•Use a sealing tape made of PTFE (Polytetrafluoroethylene).
•Wrap a sufficient amount of sealing tape layers tight around the external
thread of the surge protector.
•For a tape with a thickness of 0.1 mm and a width of 12 mm 2 ... 3 layers
are sufficient. For other sealing tape thicknesses the number of layers
might need to be adjusted.
•Ensure that the sealing tape is not loosening when the surge protector is
screwed into the enclosure.
•Place the tape at the position of the thread where sealing is required.
Danger!
Explosion hazard from live wiring of non-intrinsically safe circuits
If you connect or disconnect energized non-intrinsically safe circuits in a potentially explosive
atmosphere, sparks can ignite the surrounding atmosphere.
Only connect or disconnect energized non-intrinsically safe circuits in the absence of a poten-
tially explosive atmosphere.
Danger!
Danger to life from incorrect installation
Incorrect installation of cables and connection lines can compromise the function and the elec-
trical safety of the device.
•Observe the permissible core cross section of the conductor.
•When using stranded conductors, crimp wire end ferrules on the conductor ends.
•Use only one conductor per terminal.
•When installing the conductors the insulation must reach up to the terminal.
•Observe the tightening torque of the terminal screws.
Note
•Keep the length of the unshielded wires as short as possible.
•The twist of the unshielded wire pair + and –should be extended to as close as practical
to surge protector terminals.

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M-LBAS-IA1.*E, F*-LBAS-IA1
Installation
Connecting the Cable via the Screw Terminals
Figure 3.2
1. Plug the protected cable wires APL+, APL–and shield of the cable connection to the switch
port into the terminals on the device (top side “P”).
2. Tighten the terminal screw with the slot-head screwdriver (B).
3. Plug the unprotected field cable wires APL+, APL–and shield into the terminals on the device
(top side “U”).
4. Tighten the terminal screw with the slot-head screwdriver (2).
Ground Connection
The surge protector with DIN rail mounting provides a clamp connection to the DIN mounting
rail to discharge electric current in case of an overvoltage invent. The DIN mounting rail needs
to be connected to earth. Ensure that the cable from the DIN mounting rail to earth is short and
has a minimum diameter of 4 mm2.
ADevice with screw terminals
BSlot-head screwdriver
CCable wire
A
B
C
S
-
+
+
-
S
Note
Tightening Torque
Observe the tightening torque of the terminal screws. The tightening torque is
0.5 Nm ... 0.6 Nm.
Note
Tightening Torque
Observe the tightening torque of the terminal screws. The tightening torque is
0.5 Nm ... 0.6 Nm.

M-LBAS-IA1.*E, F*-LBAS-IA1
Installation
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Observe that the unprotected cabling does not affect the protected cabling. When laying the
cables, ensure that the distance between the unprotected cabling connected to earth and the
protected cabling is sufficient.
Figure 3.3
3.3.2 Conection F*-LBAS-IA1
Example of a Correct Ground Connection
1Unprotected side
2Protected side
3Surge protectors
4DIN mounting rail
5Earth connection
6Equipotential bonding
7Terminal block
6
4
3
1
5
7
2
Note
•Observe the permissible core cross section of the terminals you want to attach to the
wires of the surge protector (+ and –0.8 mm2, PE 1.3 mm2).
•Do not extend the wires.
•Keep the length of the wires as short as possible.
•The unshielded wire pair + and –should be twisted to as close as practical to the field
device or junction box housing port terminals.

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M-LBAS-IA1.*E, F*-LBAS-IA1
Installation
Connecting the Cable to Screw Terminals of a Field Device or Junction
Box Housing
Figure 3.4
1. Plug the wires +, –, and PE of the cable to the terminals of the field device or junction box
housing.
2. Tighten the terminal screw with the slot-head screwdriver (2). Observe the tightening torque of
the terminal screws.
Transmitter
2

M-LBAS-IA1.*E, F*-LBAS-IA1
Operation
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4Operation
Danger!
Explosion hazard from live wiring of non-intrinsically safe circuits
If you connect or disconnect energized non-intrinsically safe circuits in a potentially explosive
atmosphere, sparks can ignite the surrounding atmosphere.
Only connect or disconnect energized non-intrinsically safe circuits in the absence of a poten-
tially explosive atmosphere.
Danger!
Explosion hazard from sparking when using operating elements on devices with equipment
protection level Gc
Using operating elements in a potentially explosive atmosphere can cause sparks that can
ignite the surrounding atmosphere.
Only use operating elements (e. g., switch, slider, button, etc.) in the absence of a potentially
explosive atmosphere.

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M-LBAS-IA1.*E, F*-LBAS-IA1
Dismounting, Maintenance, and Repair
5 Dismounting, Maintenance, and Repair
5.1 Disconnection of the Surge Protectors
5.1.1 Disconnection M-LBAS-IA1.*E
Removing the Cables from the Screw Terminal
Figure 5.1
Danger!
Danger to life from using damaged or repaired devices.
Using a defective or repaired device can compromise its function and its electrical safety.
•Do not use a damaged or polluted device.
•The device must not be repaired, changed or manipulated.
•If there is a defect, always replace the device with an original device from Pepperl+Fuchs.
Caution!
Property damage from use of inappropriate tool
Using an inappropriate tool may damage the housing.
Only use a slot-head screwdriver with a size of 3.0 x 0.5 mm.
Danger!
Explosion hazard from live wiring of non-intrinsically safe circuits
If you connect or disconnect energized non-intrinsically safe circuits in a potentially explosive
atmosphere, sparks can ignite the surrounding atmosphere.
Only connect or disconnect energized non-intrinsically safe circuits in the absence of a poten-
tially explosive atmosphere.
ADevice with screw terminals
BSlot-head screwdriver
CCable wire
A
B
C
S
-
+
+
-
S

M-LBAS-IA1.*E, F*-LBAS-IA1
Dismounting, Maintenance, and Repair
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1. Loosen the screw of the terminal with the slot-head screwdriver (B).
2. Pull the individual wires out of the terminal.
Dismounting the Surge Protector with DIN Rail Mounting
Figure 5.2
1. Insert the screwdriver (2) into the groove of the mounting bracket (3).
2. Press the screwdriver (2) in the specified direction until the lock on the DIN mounting rail (4)
opens.
3. Remove the device (1) from the DIN mounting rail (4).
5.1.2 Disconnection F*-LBAS-IA1
Removing the Cables from the Screw Terminal of the Field Device or
Junction Box Housing
1. Loosen the screw of the terminal with the slot-head screwdriver.
2. Pull the individual wires out of the terminal.
Dismounting of the Surge Protector with DIN Mounting Rail
1. Turn out the surge protector of the thread by using a 22 mm wrench.
1Device
2Slot-head screwdriver
3Mounting bracket
4DIN mounting rail
2
4
3
1

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