Beckhoff EPP3174, EPP3184 Documentation

Documentation for

EPP3174, EPP3184

EtherCAT P Box Modules with configurable analog inputs

Version:
Date:

1.0.0
2019-03-11

Table of contents

Table of contents

1 Foreword ....................................................................................................................................................5

1.1 Notes on the documentation..............................................................................................................5

1.2 Safety instructions .............................................................................................................................6

1.3 Documentation issue status ..............................................................................................................7

2 Product overview.......................................................................................................................................8

2.1 EtherCATP Box - Introduction ..........................................................................................................8

2.2 EPP3174-0002 - Introduction ..........................................................................................................10

2.3 EPP3184-0002 - Introduction ..........................................................................................................11

2.4 EPP31xx - Technical data ...............................................................................................................12

2.5 Additional checks.............................................................................................................................12

2.6 EPP3174-0002, EPP3184-0002 – Process image ..........................................................................13

3 Mounting and cabling..............................................................................................................................14

3.1 Mounting..........................................................................................................................................14

3.1.1 Dimensions ...................................................................................................................... 14

3.1.2 Fixing ............................................................................................................................... 16

3.1.3 Nut torque for connectors ................................................................................................ 17

3.2 EtherCAT P .....................................................................................................................................19

3.2.1 EtherCAT P - voltage and signal supply .......................................................................... 19

3.2.2 EtherCAT P - calculate the cable length, voltage and current ......................................... 20

3.2.3 EtherCAT P LEDs............................................................................................................ 20

3.3 EtherCAT-P-supply..........................................................................................................................21

3.3.1 EtherCAT P connection ................................................................................................... 21

3.3.2 Status LEDs for power supply ......................................................................................... 23

3.3.3 EtherCAT P cable conductor losses M8 .......................................................................... 24

3.4 Cabling ............................................................................................................................................25

3.5 Signal connection ............................................................................................................................28

3.5.1 Supply and connection of sensor/actuator to EPP boxes................................................ 28

3.5.2 EPP3174-0002 ................................................................................................................ 28

3.5.3 EPP3184-0002 ................................................................................................................ 30

3.6 Status LEDs at the M12 connections ..............................................................................................31

4 Configuration ...........................................................................................................................................32

4.1 Offline configuration settings - TwinCAT .........................................................................................32

4.2 Online configuration settings - TwinCAT .........................................................................................36

4.3 Configuration via TwinCAT..............................................................................................................43

4.4 Notices on analog specifications .....................................................................................................56

4.5 EPP31xx - Settings..........................................................................................................................61

4.5.1 Selection of the analog signal type .................................................................................. 61

4.5.2 Representation ................................................................................................................ 61

4.5.3 Siemens bits .................................................................................................................... 62

4.5.4 Underrange, Overrange................................................................................................... 62

4.5.5 Limit 1 and Limit 2............................................................................................................ 62

4.6 EPP31xx – operating modes ...........................................................................................................65

4.7 Data stream .....................................................................................................................................67

EPP3174, EPP3184 3Version: 1.0.0

Table of contents

4.8 Measuring ranges............................................................................................................................68

4.9 Calibration .......................................................................................................................................69

4.10 Calculation of process data .............................................................................................................70

4.11 EPP31x4-0002 - Object overview....................................................................................................70

4.12 EPP31x4 - Object description and parameterization.......................................................................76

4.13 Restoring the delivery state .............................................................................................................91

5 Appendix ..................................................................................................................................................92

5.1 General operating conditions...........................................................................................................92

5.2 EtherCAT Box- / EtherCATPBox - Accessories ............................................................................93

5.3 Support and Service ........................................................................................................................94

EPP3174, EPP31844 Version: 1.0.0

Foreword

1 Foreword

1.1 Notes on the documentation

Intended audience

This description is only intended for the use of trained specialists in control and automation engineering who
are familiar with the applicable national standards.
It is essential that the documentation and the following notes and explanations are followed when installing
and commissioning these components.
It is the duty of the technical personnel to use the documentation published at the respective time of each
installation and commissioning.

The responsible staff must ensure that the application or use of the products described satisfy all the
requirements for safety, including all the relevant laws, regulations, guidelines and standards.

Disclaimer

The documentation has been prepared with care. The products described are, however, constantly under
development.

We reserve the right to revise and change the documentation at any time and without prior announcement.

No claims for the modification of products that have already been supplied may be made on the basis of the
data, diagrams and descriptions in this documentation.

Trademarks

Beckhoff®, TwinCAT®, EtherCAT®, EtherCATP®, SafetyoverEtherCAT®, TwinSAFE®, XFC® and XTS® are
registered trademarks of and licensed by Beckhoff Automation GmbH.
Other designations used in this publication may be trademarks whose use by third parties for their own
purposes could violate the rights of the owners.

Patent Pending

The EtherCAT Technology is covered, including but not limited to the following patent applications and
patents: EP1590927, EP1789857, DE102004044764, DE102007017835 with corresponding applications or
registrations in various other countries.

The TwinCAT Technology is covered, including but not limited to the following patent applications and
patents: EP0851348, US6167425 with corresponding applications or registrations in various other countries.

EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH,
Germany.

Copyright

© Beckhoff Automation GmbH & Co. KG, Germany.
The reproduction, distribution and utilization of this document as well as the communication of its contents to
others without express authorization are prohibited.
Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a
patent, utility model or design.

EPP3174, EPP3184 5Version: 1.0.0

Foreword

1.2 Safety instructions

Safety regulations

Please note the following safety instructions and explanations!
Product-specific safety instructions can be found on following pages or in the areas mounting, wiring,
commissioning etc.

Exclusion of liability

All the components are supplied in particular hardware and software configurations appropriate for the
application. Modifications to hardware or software configurations other than those described in the
documentation are not permitted, and nullify the liability of Beckhoff Automation GmbH & Co. KG.

Personnel qualification

This description is only intended for trained specialists in control, automation and drive engineering who are
familiar with the applicable national standards.

Description of instructions

In this documentation the following instructions are used.
These instructions must be read carefully and followed without fail!

DANGER

Serious risk of injury!

Failure to follow this safety instruction directly endangers the life and health of persons.

WARNING

Risk of injury!

Failure to follow this safety instruction endangers the life and health of persons.

CAUTION

Personal injuries!

Failure to follow this safety instruction can lead to injuries to persons.

NOTE

Damage to environment/equipment or data loss

Failure to follow this instruction can lead to environmental damage, equipment damage or data loss.

Tip or pointer

This symbol indicates information that contributes to better understanding.

EPP3174, EPP31846 Version: 1.0.0

Foreword

1.3 Documentation issue status

Version Comment

1.0.0 • 1st public issue

0.1.0 • First preliminary version

Firm and hardware version

The documentation refers to the firm and hardware status that was valid at the time it was prepared.

The properties of the modules are subject to continuous development and improvement. Modules having
earlier production statuses cannot have the same properties as modules with the latest status. Existing
properties, however, are always retained and are not changed, so that these modules can always be
replaced by new ones.

The firmware and hardware version (delivery state) can be found in the batch number (D number) printed at
the side of the EtherCAT Box.

Syntax of the batch number (D number)

D: WW YY FF HH Example with D No. 29 10 02 01:

WW - week of production (calendar week) 29 - week of production 29
YY - year of production 10 - year of production 2010
FF - firmware version 02 - firmware version 02
HH - hardware version 01 - hardware version 01

EPP3174, EPP3184 7Version: 1.0.0

Product overview

2 Product overview

2.1 EtherCATP Box - Introduction

The EtherCAT system has been extended with EtherCATP Box modules with protection class IP67.
Through the integrated EtherCATP interface the modules can be connected directly to an EtherCATP
network without an additional Coupler Box. Through an adapter an EtherCATP Box can be connected to an
EtherCAT Box whereby voltage must be supplied externally. The high-performance of EtherCAT is thus
maintained into each module.

The extremely low dimensions of only 126x30x26.5 mm (hxw xd) are identical to those of the Fieldbus
Box extension modules and EtherCAT Box modules. They are thus particularly suitable for use where space
is at a premium. The small mass of the EtherCATP modules facilitates applications with mobile I/O interface
(e.g. on a robot arm). The EtherCATP connection is established via screened M8connectors.

Fig.1: EtherCATP Box Modules within an EtherCAT network

The robust design of the EtherCATP Box modules enables them to be used directly at the machine. Control
cabinets and terminal boxes are now no longer required. The modules are fully sealed and therefore ideally
prepared for wet, dirty or dusty conditions.

Pre-assembled cables significantly simplify EtherCATP and signal wiring. Very few wiring errors are made,
so that commissioning is optimized. In addition to pre-assembled EtherCATP, power and sensor cables,
field-configurable connectors and cables are available for maximum flexibility. Depending on the application,
the sensors and actuators are connected through M8 or M12connectors.

The EtherCATP modules cover the typical range of requirements for I/O signals with protection class IP67:

• digital inputs with different filters (3.0ms or 10μs)

• digital outputs with 0.5 or 2A output current

• analog inputs and outputs with 16bit resolution

• Thermocouple and RTD inputs

• Stepper motor modules

XFC (eXtreme Fast Control Technology) modules, including inputs with time stamp, are also available.

EPP3174, EPP31848 Version: 1.0.0

Fig.2: EtherCATP Box with M8 connections for sensors/actuators

Fig.3: EtherCATP Box with M12 connections for sensors/actuators

Basic EtherCAT documentation

You will find a detailed description of the EtherCAT system in the Basic System Documentation for
EtherCAT, which is available for download from our website (www.beckhoff.com) under Downloads.

Product overview

XML files

You will find XML files (XML Device Description Files) for Beckhoff EtherCATP modules on our
website (www.beckhoff.com) under Downloads, in the Configuration Files area.

EPP3174, EPP3184 9Version: 1.0.0

Product overview

2.2 EPP3174-0002 - Introduction

Fig.4: EPP3174-0002

The EPP3174 EtherCATPBox has four analog inputs which can be individually parameterized, so that they
process signals either in the -10 to +10V range or the 0mA/4mA…20mA range. The voltage or input
current is digitized with a resolution of 16bits, and is transmitted (electrically isolated) to the higher-level
automation device.

The four input channels have differential inputs and possess a common, internal ground potential. The input
filter and therefore the conversion times are configurable in a wide range. The inputs can, if required, be
scaled differently, and automatic limit value monitoring is also available.

EtherCAT is used for parameterization purposes. The parameters are stored in the module.

EPP3174, EPP318410 Version: 1.0.0

2.3 EPP3184-0002 - Introduction

Product overview

Fig.5: EPP3184-0002

The EPP3184 EtherCATPBox has four analog inputs which can be individually parameterized, so that they
process signals either in the -10V/0V to +10V range or the 0mA/4mA…20mA range. The voltage or input
current is digitized with a resolution of 16 bits, and is transmitted (electrically isolated) to the higher-level
automation device.

The four input channels are single-ended inputs and share a common internal ground potential. The input
filter and therefore the conversion times are configurable in a wide range. The inputs can, if required, be
scaled differently, and automatic limit value monitoring is also available.

EtherCAT is used for parameterization purposes. The parameters are stored in the module.

EPP3174, EPP3184 11Version: 1.0.0

Product overview

2.4 EPP31xx - Technical data

Technical data EPP3174-0002 EPP3184-0002

Fieldbus EtherCATP

Bus interface [}21]

Number of inputs 4
Connection technology two-wire, four-wire single ended
Input connections

Signal type Configurable:

Internal resistance >200kΩ (typ. 85Ω + diode voltage)
Common-mode voltage U

CM

Resolution 16bit (including sign)
Input filter configurable
Input filter limit frequency 5kHz
Conversion time ~100μs
Measuring error < ±0.3% (relative to full scale value)
Nominal voltage 24VDC (-15 %/+20 %)
Distributed clocks yes
Supply of the module electronics from the control voltage U
Current consumption of the module

electronics
Sensor supply from load voltage U
Power supply connection not required
Process image Inputs: 4 x 16bit, status: 4 x 8bit
Electrical isolation 500V
Special features Current or voltage parameterizable
Weight approx.165g
Permissible ambient temperature during

operation
Permissible ambient temperature during

storage
Vibration/ shock resistance conforms to EN60068-2-6/ EN60068-2-27
EMC immunity/emission conforms to EN61000-6-2/ EN61000-6-4
Protection class IP65, IP66, IP67 (conforms to EN 60529)
Installation position variable
Approvals CE

2 x M8 sockets, shielded, screwable, EtherCATP-coded

M12, screw type [}28] M12, screw type [}30]

0V…+10V

-10V…+10V
0mA…20mA
4mA…20mA

max. 35V

S

typ. 100mA

P

-25°C ... +60°C

-40°C ... +85°C

2.5 Additional checks

The boxes have undergone the following additional tests:

Verification Explanation

Vibration 10 frequency runs in 3 axes

5Hz < f < 60Hz displacement 0.35mm, constant amplitude

60.1Hz < f < 500Hz acceleration 5g, constant amplitude

Shocks 1000 shocks in each direction, in 3 axes

35g, 11ms

EPP3174, EPP318412 Version: 1.0.0

Product overview

2.6 EPP3174-0002, EPP3184-0002 – Process image

The process data of the EPP3174-0002 and EPP3184-0002 modules are identical in the default setting and
are illustrated here taking the EPP3174-0002 as an example.

A detailed explanation of the meaning of the status bits can be found in the chapters EPP31xx-Settings
[}62] and Object description and parameterization [}87].

AI Standard Channel 1

You will find the data of the 1st analog channel
under AI Standard Channel1.

AI Standard Channel2 bis 4

The data of analog channels 2 to 4 have the same structure as those of the 1st channel.

EPP3174, EPP3184 13Version: 1.0.0

Mounting and cabling

3 Mounting and cabling

3.1 Mounting

3.1.1 Dimensions

Fig.6: Dimensions of the EtherCAT-P-Box Modules

All dimensions are given in millimeters.

EPP3174, EPP318414 Version: 1.0.0

Mounting and cabling

NOTE

FE contact in housing of EtherCAT-P-Box

At top right of the EtherCAT-P-Box is a FE socket (see following figure) to connect the EPP-Box with the
machine bed. If the machine have no FE connection the EtherCAT-P-Box must be connected with low im­pedance to an alternative functional ground.

Fig.7: FE socket in housing of EtherCAT-P-Box

Housing properties

EtherCAT Box lean body

Housing material PA6 (polyamide)
Casting compound Polyurethane
Mounting two fastening holes Ø3mm for M3
Metal parts Brass, nickel-plated
Contacts CuZn, gold-plated
Installation position variable
Protection class IP65, IP66, IP67 (conforms to EN 60529) when screwed together
Dimensions (HxWxD) ca. 126 x 30 x 26,5mm
Weight approx. 125g, depending on module type

EPP3174, EPP3184 15Version: 1.0.0

Mounting and cabling

3.1.2 Fixing

Note or pointer

While mounting the modules, protect all connectors, especially the IP-Link, against contamination!
Only with connected cables or plugs the protection class IP67 is guaranteed! Unused connectors
have to be protected with the right plugs! See for plug sets in the catalogue.

Modules with narrow housing are mounted with two M3 bolts.
Modules with wide housing are mounted with two M3 bolts to the fixing holes located at the corners or
mounted with two M4 bolts to the fixing holes located centrally.

The bolts must be longer than 15 mm. The fixing holes of the modules are not threaded.

When assembling, remember that the fieldbus connectors increases the overall height. See chapter
accessories.

Mounting Rail ZS5300-0001

The mounting rail ZS5300-0001 (500 mm x 129 mm) allows the time saving assembly of modules.

The rail is made of stainless steel, 1.5 mm thick, with already pre-made M3 threads for the modules. The rail
has got 5.3 mm slots to mount it via M5 screws to the machine.

Fig.8: Mounting Rail ZS5300-000

The mounting rail is 500 mm long, that way 15 narrow modules can be mounted with a distance of 2 mm
between two modules. The rail can be cut to length for the application.

Mounting Rail ZS5300-0011

The mounting rail ZS5300-0011 (500 mm x 129 mm) has in addition to the M3 treads also pre-made M4
treads to fix 60 mm wide modules via their middle holes.

Up to 14 narrow or 7 wide modules may be mixed mounted.

EPP3174, EPP318416 Version: 1.0.0

Mounting and cabling

3.1.3 Nut torque for connectors

M8 connectors

It is recommended to pull the M8 connectors tight with a nut torque of 0.4 Nm. When using the torque control
screwdriver ZB8800 is also a max. torque of 0.5Nm permissible.

Fig.9: EtherCAT P Box with M8 connectors

M12 connectors

It is recommended to pull the M12 connectors tight with a nut torque of 0.6 Nm.

Fig.10: EtherCAT P Box with M8 and M12 connectors

EPP3174, EPP3184 17Version: 1.0.0

Mounting and cabling

7/8" connectors

It is recommended to pull the 7/8" connectors tight with a nut torque of 1.5 Nm.

Fig.11: 7/8" connectors

Torque socket wrenches

Fig.12: ZB8801 torque socket wrench

Ensure the right torque

Use the torque socket wrenches available by Beckhoff to pull the connectors tight (see ZB8800,
ZB8801-0000)!

EPP3174, EPP318418 Version: 1.0.0

Mounting and cabling

3.2 EtherCAT P

3.2.1 EtherCAT P - voltage and signal supply

For the incoming and ongoing EtherCAT-P-connection, the EtherCAT-P-Box (EPPxxxx) has two M8 sockets,
marked in red.

Fig.13: EtherCATP Box: M8 (30mm housing)

Assignment

A standard industrial CAT5 cable is used to which an EtherCAT-P-coded M8 plug is connected. The
assignment of the Beckhoff EtherCAT-P-cable is listed below.

Assignment EtherCATP Connector Wire color cable
Signal Description Voltage Description M8 ZB7000, ZB7001

Tx + Transmit Data+ GND
Rx + Receive Data+ GND
Rx - Receive Data- U

P

GND for U

S

GND for U

P

Peripheral voltage for

S

P

1 yellow
2 white
3 blue

1

1

1

actuators

Tx - Transmit Data- U

S

System and sensor supply 4 orange

1

Shield Shield Shield Shield Housing Screen

*1) wire colors according to EN 61918

Click here [}25] for EtherCAT-P-cable.

EPP3174, EPP3184 19Version: 1.0.0

Mounting and cabling

3.2.2 EtherCAT P - calculate the cable length, voltage and current

The chapter “EtherCATPtab [}45]” describes a planning tool to calculate the cable length, voltages and
currents of the EtherCATPsystem.

3.2.3 EtherCAT P LEDs

Fig.14: EtherCAT P LEDs

LED display

LED Display Meaning

IN L/A off no connection to the preceding EtherCATP module

Lit LINK: connection to the preceding EtherCATP module
flashing ACT: Communication with the preceding EtherCATP module

OUT L/A off no connection to the following EtherCATP module

Lit LINK: connection to the following EtherCATP module
flashing ACT: Communication with the following EtherCATP module

Run off Status of the EtherCATP module is Init

flashes quickly Status of the EtherCATP module is pre-operational
flashes slowly Status of the EtherCATP module is safe-operational
Lit Status of the EtherCATP module is operational

EtherCAT statuses

The various statuses in which an EtherCATP module may be found are described in the Basic Sys­tem Documentation for EtherCAT, which is available for download from our website (www.beck­hoff.com) under Downloads.

EPP3174, EPP318420 Version: 1.0.0

Mounting and cabling

3.3 EtherCAT-P-supply

3.3.1 EtherCAT P connection

NOTE

Risk of damage to the device!

Bring the EtherCAT/EtherCATP system into a safe, powered down state before starting installation, disas­sembly or wiring of the modules!

The feeding and forwarding of EtherCATP is done via two EtherCAT-P-coded M8 connectors at the top of
the modules:

• IN: left M8 connector with EtherCAT-P-coding for feeding EtherCATP

• OUT: right M8 connector with EtherCATP for forwarding the supply voltages

Fig.15: EtherCAT-P-Box, Connectors for EtherCATP

Fig.16: Pin assignment M8, EtherCATP In and EtherCATP Out

PIN assignment

Pin Signal Voltage

1 Tx + GNDs
2 Rx + GNDp
3 Rx - Auxiliary voltage UP, +24V
4 Tx - Control voltage US, +24V
Housing Shield Shielding

DC

DC

The pins M8 connectors carry a maximum current of 3A.

Two LEDs display the status of the supply voltages.

EPP3174, EPP3184 21Version: 1.0.0

Mounting and cabling

Control voltage US 24V

DC

Power is supplied to the fieldbus, the processor logic, the inputs and the sensors from the 24VDC control
voltage US.

Auxiliary voltage Up 24V

DC

The Auxiliary voltage UP supplies the digital outputs; it can be brought in separately. If the load voltage is
switched off, the fieldbus functions and the power supply and functionality of the inputs are retained.

NOTE

Pay attention to the maximum permissible current!

Pay attention also for the redirection of EtherCATP, the maximum permissible current for M8 connectors of
3A must not be exceeded!

Electrical isolation

Digital modules

In the digital input/output modules, the grounds of the control voltage (GNDS) and the auxiliary voltage
(GNDP) are separated from each other!

Analog modules

In the analog input/output modules the grounds of the control voltage (GNDS) and the auxiliary voltage
(GNDP) are separated from each other in order to ensure electrical isolation of the analog signals from the
control voltage.

In some of the analog modules the sensors or actuators are supplied by UP - this means, for instance, that in
the case of 0...10 V inputs, any reference voltage (0...30 V) may be connected to UP; this is then available to
the sensors (e.g. smoothed 10 V for measuring potentiometers).

EPP3174, EPP318422 Version: 1.0.0

3.3.2 Status LEDs for power supply

Fig.17: Status LEDs for power supply

LED display

LED Display Meaning

US (Control voltage) off The power supply voltage US is not present

green illuminated The power supply voltage US is present
red illuminated Because of overload (current>0.5A) the sensor supply

generated from power supply voltage US was switched off for
all sensors fed from this.

UP (Auxiliary voltage) off The power supply voltage UP is not present

green illuminated The power supply voltage UP is present

Mounting and cabling

EPP3174, EPP3184 23Version: 1.0.0

Mounting and cabling

3.3.3 EtherCAT P cable conductor losses M8

When using ZK700x-xxxx-0xxx EtherCATP cables it must be ensured that the voltage at the last device is
not less than the minimum rated voltage of 20.4 V according to the standard. Variations in the output voltage
from the power supply unit must also be taken into account. This ensures that the connected consumers,
sensors and actuators are operated within the permitted voltage range.

The voltage calculation tool [}45] integrated in TwinCAT can be used for the offline calculation of the cable
lengths.

The EPP9022-0060 box with diagnostics can be used for checking during operation.

Conductor losses on the EtherCATP cables

Fig.18: Conductor losses on the EtherCATP cables

Example

A 10 meter-long EtherCATP cable with a cross section of 0.34mm² has a voltage drop of ∼3.0V with a load
of 3A.

EPP3174, EPP318424 Version: 1.0.0

Mounting and cabling

3.4 Cabling

A list of the EtherCATP cable, EtherCAT cable, power cable, sensor cable, Ethernet-/EtherCAT connectors
and the field assembled connectors can be found at the following link: https://beckhoff.de/english/ethercat-

box/ethercat_box_cables.htm?id=690338951657421

You can find the corresponding data sheets at the following link: https://beckhoff.de/english/
downloadfinder/default.htm?id=109075571109075577&cat1=40717316&cat2=90800914

EtherCATP cable

For the EtherCATP connection are pre-assembled M8 cables in various lengths and the versions: plug –
open end, plug – plug or plug - socket available.

Fig.19: EtherCAT P cable: ZK700x-0100-0xxx, ZK700x-0101-0xxx and ZK700x-0102-0xxx

For connecting EtherCATP devices only shielded Ethernet cables that meet the requirements of at least

category 5 (CAT5) according to EN 50173 or ISO/IEC 11801 should be used.

Recommendations about cabling

You may get detailed recommendations about cabling EtherCAT from the documentation "Infra­structure for EtherCAT/Ethernet", that is available for download at www.Beckhoff.com.

EPP3174, EPP3184 25Version: 1.0.0

Mounting and cabling

Fig.20: EtherCAT-P-Box-accessories

Number Description Link

1 Cables for EtherCAT signal in- and -output

2 Cables for EtherCAT P: Ultra-fast Communication and Power in

One Cable

3 Cables for EtherCAT signal in- and -output

4 Cables for M8 power supply

5 Cables for M8 I/O connection sockets

6 Cables for M12 I/O connection sockets

7 Shielded cables for M12 I/O connection sockets

EtherCATP connectors for field assembly

For EtherCATP are field installable M8 connectors as plug and as socket available.

RJ45 EtherCAT/Ethernet cable

M8 EtherCAT P cable

M8 EtherCAT cable

M8 Power cable

M8 Sensor cable

M12 Sensor cable

M12 Sensor cable, shielded

Fig.21: EtherCAT P: field assembly connectors

EPP3174, EPP318426 Version: 1.0.0

Sensor cable

Fig.22: Selection of different Sensor cables from Beckhoff

Mounting and cabling

EPP3174, EPP3184 27Version: 1.0.0

Mounting and cabling

3.5 Signal connection

3.5.1 Supply and connection of sensor/actuator to EPP boxes

NOTE

Supply and connection of sensor/actuator to the EPP boxes

The connected sensors/actuators must be powered by an EPP box! GNDS and GNDP from an M8/M12 sig­nal connection of an EPP box must not be connected to the machine bed!

Supply of remote powered sensors/actuators

If the sensors/actuators cannot be supplied from the EPP box the supply of remote powered sen­sors/actuators must be galvanically isolated!

3.5.2 EPP3174-0002

3.5.2.1 M12 analog voltage inputs, one differential input per socket

Analog inputs, -10V to +10V

The input voltage is measured as a differential signal.

Fig.23: M12 analog voltage inputs, one differential input per socket

GND connections

If several sensors are connected to a box whose GND connections are not electrically isolated,
GND must be connected to GNDp.

EPP3174, EPP318428 Version: 1.0.0

Mounting and cabling

3.5.2.2 M12 analog current inputs, one differential input per socket

Analog inputs, 0mA to 20mA or 4mA to 20mA

The input current is measured as a differential signal.

Fig.24: M12 analog current inputs, one differential input per socket

GND connections

If several sensors are connected to a box whose GND connections are not electrically isolated,
GND must be connected to GNDp.

EPP3174, EPP3184 29Version: 1.0.0