Festo EMCS-ST User manual

EMCS-ST
Integrated drive
Operating instruc-
tions
8150608
2021-03b
[8150610]

Translation of the original instructions
IO-Link® is a registered trademark of its respective trademark holder in certain countries.

Festo — EMCS-ST — 2021-03b
3
Table of contents
1 About this document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Applicable documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Product version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Product labelling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Specified standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Intended use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2.1 Application areas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Training of qualified personnel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Approvals and certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Additional information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Product overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2 System overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3 Product design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Display and operating components (HMI). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.2 Master control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.3 HMI menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 Transport and storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.1 Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.2 Mounting clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.3 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8.1 Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8.2 Information on EMC-compliant installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8.3 Functional earth (FE) and protective earth (PE) connection. . . . . . . . . . . . . . . . . . . . . . . 15
8.4 Connection variants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.4.1 Wiring diagram: DIO operation (digital I/O). . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.4.2 Wiring diagram: IO-Link operation, port class A (with and without NEFC
adapter). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8.5 Electrical interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8.5.1 Connection [Logic]: digital inputs/outputs (DIO), logic power supply. . . . . . . 20
8.5.2 Connection [Logic]: IO-Link (LK), port class A. . . . . . . . . . . . . . . . . . . . . . . . . . . 21
8.5.3 Connection [Power]: load voltage supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
9Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.1 Commissioning "DIO operation (digital I/O)". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.2 Commissioning "IO-Link Operation". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

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Festo — EMCS-ST — 2021-03b
10 Drive system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
10.1 Dimensions and units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
10.1.1 Basic and user units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
10.1.2 Dimension reference system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10.2 Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
10.2.1 Firmware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
10.2.2 Parameter set. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
10.2.3 Data backup (Data Storage). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
10.2.4 Factory settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
10.2.5 Switch-on behaviour. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
10.2.6 Switch-off behaviour. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
10.2.7 Restart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
10.2.8 Master control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
10.3 Operating modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
10.3.1 Activation times for the dynamic status change. . . . . . . . . . . . . . . . . . . . . . . . 58
10.3.2 Homing with end position determination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
10.3.3 Single point-to-point operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
10.3.4 Point-to-point operation with press function. . . . . . . . . . . . . . . . . . . . . . . . . . . 71
10.3.5 Manual operation (demo). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
11 Maintenance and care. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
12 Diagnostics and malfunctions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
12.1 Diagnostics via LED displays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
12.1.1 LED "C/Q" (communication and device status). . . . . . . . . . . . . . . . . . . . . . . . . 80
12.1.2 "Menu" LED display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
12.1.3 LED display "Parameter". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
12.2 Diagnostic messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
12.2.1 Acknowledge error. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
12.2.2 Diagnostic messages and fault clearance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
12.3 Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
13 Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
14 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
15 IO-Link. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
15.1 Device description file IODD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
15.2 IO-Link parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
15.2.1 Identification parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
15.2.2 Device data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
15.2.3 Process data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
15.2.4 System parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
15.2.5 Control point-to-point operation via IO-Link. . . . . . . . . . . . . . . . . . . . . . . . . . 103
15.2.6 Monitor point-to-point operation via IO-Link. . . . . . . . . . . . . . . . . . . . . . . . . . 105

Festo — EMCS-ST — 2021-03b
5
16 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
16.1 Technical data, general. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
16.2 Technical data, electrical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
16.2.1 Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
16.2.2 Digital inputs (DI). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
16.2.3 Digital outputs (DO). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
16.2.4 IO-Link. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
16.2.5 Motor (integrated). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
16.2.6 Rotary encoder (integrated). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
16.2.7 Temperature sensor (integrated). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

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Festo — EMCS-ST — 2021-03b
About this document
1 About this document
1.1 Applicable documents
All available documents for the product è www.festo.com/sp.
Type Product Table of contents
Drive system
EGSS-BS Mini slide unit Operating instructions
ELGE-TB Toothed belt axis unit Operating instructions
ELGS-BS Spindle axis unit Operating instructions
ELGS-TB Toothed belt axis unit Operating instructions
EPCE-TB Electric cylinder unit Operating instructions
EPCS-BS Electric cylinder unit Operating instructions
ERMS Rotary drive unit Operating instructions
Drive
EGSC Mini slide Operating instructions
ELGR-TB Toothed belt axis Operating instructions
ELGC-BS Spindle axis Operating instructions
ELGC-TB Toothed belt axis Operating instructions
EPCC-BS Electric cylinder Operating instructions
Mounting kit
EAMM Axial and parallel kit Assembly instructions
Accessories (IO-Link)
NEFC-M12G8-0.3-M12G5-LK Adapter Assembly instructions
Tab. 1: Applicable documents for the product
1.2 Product version
This documentation refers to the following datasets:
–Hardware version of the integrated drive
–EMCS-ST-42 -... from revision 1
–EMCS-ST-57 -... from revision 1
–Firmware version of the integrated drive from "v19.0.4.107_release"
–IO-Link device description file (IODD) from V1.2.6
When using a different firmware version, check whether a corresponding version of the documentation
is available è www.festo.com/sp.

Festo — EMCS-ST — 2021-03b
Safety
7
1.3 Product labelling
1
Fig. 1: Product labelling
1
Product labelling (product information,
approvals, warning symbol)
Warning symbol
Warning
symbol
Meaning
Attention! Hot surface
Metallic housing parts of the device can reach high temperatures during operation. In
the event of a fault, internal components may become overloaded.
Tab. 2: Warning symbol
1.4 Specified standards
Version
IEC 60204-1:2005+AMD1:2008 CSV EN 61800-5-1:2016-08
IEC 61131-2:2013 EN 60034-1:2011-02
EN 61800-2:2016 EN 60204-1:2006+A1:2009+AC:2010
Tab. 3: Standards specified in the document
2 Safety
2.1 Safety instructions
–Only use the product if it is in perfect technical condition.
–Only use the product in original status without unauthorised modifications.
–Do not carry out repairs on the product. Replace defective product immediately.
–Observe labelling on the product.
–Never remove or insert a plug connector while live.

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Festo — EMCS-ST — 2021-03b
Product overview
–Once installed, only operate the product if all the necessary protective measures have been imple-
mented è EN 60204-1.
–Before working on the product: switch off the power supply, check that no voltage is present and
secure against being switched on again.
–Store the product in a cool, dry environment that is protected against UV and corrosion. Ensure
short storage times.
2.2 Intended use
The EMCS-ST integrated drive is used as intended to drive the connected actuator technology. The
integrated electronics enable control of position, speed or force/torque.
2.2.1 Application areas
The device is intended for use in an industrial environment. Outside industrial environments, e.g. in
commercial and residential/mixed-use areas, it may be necessary to take measures to suppress radio
interference.
2.3 Training of qualified personnel
Work on the product may only be carried out by qualified personnel who can evaluate the work and
detect dangers.
The qualified personnel have knowledge and experience in dealing with electric drive systems.
2.4 Approvals and certifications
CE approval (conformity)
In conjunction with the CE mark on the product, the EC directives and standards listed below in the
Declaration of Conformity è www.festo.com/sp apply.
–in accordance with EU EMC Directive
–in accordance with EU RoHS Directive
KC certification
KC number: R-R-FTO-KC-2018-1082
RCM certification
The product fulfils the EMC requirements for Australia and New Zealand with the RCM certification
mark on the product.
3 Additional information
–Contact the regional Festo contact if you have technical problems è www.festo.com.
–Accessories and spare parts è www.festo.com/catalogue.
4 Product overview
4.1 Function
The following components are integrated in the EMCS-ST integrated drive for all product variants:
–Stepper motor for driving the connected actuator technology
–Encoder for detecting the current position
–Electronics for DC link voltage conditioning
–Power stage for actuation of the motor
–Temperature sensors for monitoring the power stage temperature

Festo — EMCS-ST — 2021-03b
Product overview
9
The integrated drive EMCS-ST has separate connections for the supply of logic and load voltage. The
load voltage (24 V DC) for all product variants must be supplied directly by a PELV fixed power supply.
The logic voltage (24 V DC) is supplied as follows:
–DIO operation (digital I/O): by a PELV fixed power supply
–IO-Link operation: by the IO-Link Master
All product variants can be controlled by digital inputs/outputs (DIO) or IO-Link (LK) at the [Logic]
connection.
4.2 System overview
1
2
3
4
5
6
Fig. 2: System overview (with ELGS-BS as
example)
1
PELV fixed power supply for load voltage
2
PELV fixed power supply for logic voltage
3
Application software
4
PC or laptop
5
Controller or IO-Link master
6
Spindle axis unit ELGS-BS
Items 1 … 5 are not included in the scope of delivery.
Overview of drive systems with integrated drive EMCS-ST
The integrated drive EMCS-ST is included in the following drive systems.
Mini slide unit Toothed belt axis unit Spindle axis unit Toothed belt axis unit
EGSS-BS ELGE-TB ELGS-BS ELGS-TB
Tab. 4: Overview of mini slide and axis units with integrated drive EMCS-ST

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Festo — EMCS-ST — 2021-03b
Display and operating components (HMI)
Electric cylinder unit Electric cylinder unit Rotary drive unit
EPCE-TB EPCS-BS ERMS
Tab. 5: Overview of electric cylinder and rotary drive units with integrated drive EMCS-ST
4.3 Product design
1 2
3
4
5
6
7
8
Fig. 3: Product design EMCS-ST (example EMCS-
ST-57 -...)
1
Connection for load voltage supply [Power]
2
Connection of logic power supply and dig-
ital inputs/outputs (DIO) or IO-Link (LK)
[Logic]
3
Display and operating components (HMI)
4
Stepper motor
5
Mounting holes
6
Motor flange
7
Motor shaft
8
Controller housing
5Display and operating components (HMI)
5.1 Overview
The display and operating components (HMI) offer comprehensive options for parameterisation and
control of the integrated EMCS-ST drive.
Various LED displays are available on the controller housing for displaying parameter information,
motion status and menu selection.
Three pushbutton actuators are used to navigate through the menu or to control motions, e.g. to
perform a homing run.

Festo — EMCS-ST — 2021-03b
Display and operating components (HMI)
11
1 2 3 4 5
6
7
8
Fig. 4: Electrical connections, display and
operating components (HMI)
1
LED display menu (Speed Out, ..., Demo)
2
LED parameter display
3
LED C/Q
4
Connection for load voltage [Power]
5
Logic voltage connection and digital I/O or
IO-Link connections [Logic]
6
Pushbutton actuator (right arrow)
7
Pushbutton actuator (Edit)
8
Pushbutton actuator (left arrow)
5.2 Master control
The master control of the display and operating components (HMI) is controlled via the "Unlock/lock
pushbutton actuators" function. Unlocking the pushbutton actuators (press and hold pushbutton
actuator for 3 seconds) automatically sets the "Display and operating components (HMI)" as the
master control for the integrated drive EMCS-ST. The master control is automatically returned to the
active digital inputs and outputs (DIO) or IO-Link (LK) control interface if the pushbutton actuator
lock is reset (by pressing and holding the pushbutton actuator for 3 seconds or if the pushbutton
actuators are not pressed for 15 seconds).
The function of the three " / / " pushbutton actuators can be blocked or enabled via the IO-Link
parameter "Device access lock" (0x000C.4).
Unlocking pushbutton actuators
Press and hold pushbutton actuator " " for at least 3 seconds to disable the pushbutton actuator
lock.
Locking pushbuttons
Press and hold pushbutton actuator " " for at least 3 seconds or do not press any pushbutton
actuators ( / / ) for 15 seconds to activate the pushbutton lock.
5.3 HMI menu
The display and operating components (HMI) can be used to perform the following functions in the
HMI menu:
–Unlock pushbutton actuators (Unlock HMI), press and hold for 3 s — an active positioning task
in DIO or IO-Link mode is stopped
(Condition for IO-Link operation: IO-Link parameter 0x000C.4 = false)
–Select menu function with pushbutton actuators (selecting menu), press
–Parameterise Speed Out, Speed In and Force setpoint values

12
Festo — EMCS-ST — 2021-03b
Display and operating components (HMI)
(Set value: 10, 20,..., 100% of the maximum value è drive system instruction manual, technical
data) and save (Save), press
–Parameterise the position of the "Ref" reference end position (Set Ref) and run homing with
detection of the MovRef end position (StartRef: PosAct è LimIn è LimOut), press
–Run Start Press movement (Start/Stop) and save Start Press Position PosStart Press (Save), press
–Execute Demo Run (Start/Stop)
–Lock pushbutton actuators (Lock HMI), press and hold for 3 s or no pushbutton actuator input
for 15 s
–To acknowledge an error, press and hold for 3 s (from FW version v19.0.4.107_release)
–Reset to factory setting, press and hold , and simultaneously for 10 s
HMI menu structure
The following figure shows the states of the LED displays for the parameters and the menu selection,
the state transitions between the menu sequences (pushbutton actuator navigation) and the motions
of the drive systems when performing motion tasks.

Festo — EMCS-ST — 2021-03b
Display and operating components (HMI)
13
Referenc e
Speed Out
Speed In
Force
Referenc e
Start Pres s
Demo
Start Pres s
Demo
Speed Out
Speed In
Force
(default )
(Ref1 defa ult)
(default )
M
Ref
Ref
M
Ref
Ref
M
Ref
M
Ref
Ref
M
Ref
Ref
M
Ref
Ref
Ref
M
Ref
Ref
M
Ref
Ref
M
Ref
Ref
M
Ref
Ref
M
Ref
Ref
M
Ref
(Ref2)
Ref1/Ref2
Ref
Fig. 5: HMI menu structure

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Festo — EMCS-ST — 2021-03b
Installation
6 Transport and storage
Transport and storage conditions
–Store and transport the product in its original packaging.
–Store product in a cool, dry, shaded and corrosion protected environment.
–Store product in ambient conditions without oils, greases and degreasing vapours.
–Ensure short storage times.
7 Assembly
7.1 Safety
WARNING
Risk of injury due to unexpected movement of components.
The drive can move freely in the voltage-free state. This can cause unexpected movements of the
connected mechanics and crush parts of the body.
• Bring moving parts of the mechanical system into a safe position.
7.2 Mounting clearances
Drive systems with integrated drive EMCS-ST can be connected in series. When connecting drive
systems in series, a minimum distance must be maintained to allow the heat generated during
operation to dissipate by allowing sufficient air flow.
–Maintain a minimum lateral distance of at least 20 mm between the integrated drive EMCS-ST and
adjacent components.
–Take into account the clearance required for connecting the cables (the cables at the [Logic] and
[Power] connections can be routed upwards (straight) or laterally (angled)).
–Do not install any temperature-sensitive components near the integrated drive EMCS-ST. The inte-
grated drive EMCS-ST can become very hot during operation.
Assembly instructions
–Mount the drive system flat on a sufficiently stable mounting surface.
–Maintain minimum clearances and installation space to guarantee sufficient air flow. The ambient
air must be able to flow unhindered around the integrated drive EMCS-ST.
7.3 Installation
• Mount the product è Instruction manual, mounting the corresponding drive.
8 Installation
8.1 Safety
WARNING
Risk of injury due to electric shock.
• For the electrical power supply with extra-low voltages, use only SELV circuits that ensure a reliable
separation from the mains network.
• Observe IEC 60204-1/EN 60204-1.

Festo — EMCS-ST — 2021-03b
Installation
15
8.2 Information on EMC-compliant installation
The integrated drive EMCS-ST fulfils the following tasks:
–Guarantee of immunity to interference
–Limits the conducted interference emission
If installed correctly and if all connecting cables are wired correctly, the device fulfils the specifications
of the product standard IEC 61800-3.
The category that the device fulfils depends on the filter measures used and the cable length.
Order code Category Pulse-width modula-
tion frequency [kHz]
Max. permissible
line length [m]
EMCS-ST-... C2
(Residential area)1)
− −
C3
(Industrial environ-
ment)
20 30 (DIO operation)
20 (IO-Link operation)
1) Application area not approved
Tab. 6: Category according to the pulse-width modulation frequency and the cable length
Laying cables
Comply with general guidelines for EMC-compliant installation, e.g.:
–Do not lay signal cables parallel to power cables.
–Comply with required minimum distances between signal cables and power cables dependent on
the installation conditions. Signal cables must be laid as far away from power cables as possible.
–Do not cross signal cables with power cables or cross them at a 90° angle.
8.3 Functional earth (FE) and protective earth (PE) connection
When connecting the functional earth (FE) and the protective earth (PE), follow the specifications of
EN 60204-1.
Functional earth (FE)
–Connect the functional earth (FE) to the following points before commissioning:
–EMCS-ST: FE connection, pin 4 [Power]
–PELV fixed power supply unit: FE connection of the PELV power supply unit (the PELV power
supply unit must be connected to protective earth (PE))
Protective earth (PE)
–Connect the protective earth (PE) to one of the following locations before commissioning:
–Drive system: profile groove or threaded hole
–Mounting surface or mounting frame: depending on application

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Festo — EMCS-ST — 2021-03b
Installation
8.4 Connection variants
Damage to the device due to non-approved potentials at the pins
• Power connection:
• Do not connect pin 3
• Logic connection:
•EMCS-ST is not hot-pluggable. Only after connection of the reference potentials GND/L– [Pin
4/8] can 24V levels be applied to digital outputs DO1/DO2 [Pin 2/3] or the IO-Link communi-
cation signal C/Q [Pin 3].
• The DO1/DO2 [Pin 2/3] digital outputs and the IO-Link C/Q [Pin 3] communication signal
must be disconnected 100 ms before the power supply connections GND/L– [Pin 4/8] and
24 V DC/L + [Pin 1], e.g. by the interposition of relay contacts.
The connection of the integrated EMCS-ST drive depends on the "DIO operation" (digital inputs/
outputs) or "IO-Link operation" actuation mode and the connection cables (with or without adapter).
1. Connect the cables to the [Logic] and [Power] connections of the integrated drive EMCS-ST.
2. Connect cables to the controller or IO-Link master and to the PELV fixed power supply units.
8.4.1 Wiring diagram: DIO operation (digital I/O)
In NPN mode defined levels must be applied to the DI1/DI2 digital inputs of the EMCS, e.g. by
controller outputs with pull-up resistors (4.3 kW recommended).
The diagram shows the electrical connections of the integrated drive EMCS-ST to the load and logic
power supply and to the higher-level control (controller) in DIO mode.

Festo — EMCS-ST — 2021-03b
Installation
17
1
23
4
5
Fig. 6: Wiring diagram: DIO operation (digital I/O)
1
PELV fixed power supply for load voltage
supply
2
PELV fixed power supply for logic power
supply
3
Reset button for acknowledging an error
and triggering a restart (optional)
4
Integrated drive EMCS-ST
5
Higher-level controller with digital I/O
Status and control signals
The following table shows the status and control signals and the electrical levels of the digital inputs
and outputs as a function of the "PNP/NPN" version of the integrated drive.
Status and control
signal
Electrical levels
PNP, positive logic NPN, negative logic
0 Low level (0 V) High level (24 V)
1 High level (24 V) Low level (0 V)
Tab. 7: Overview of status and control signals as a function of electrical levels
8.4.2 Wiring diagram: IO-Link operation, port class A (with and without NEFC adapter)
The diagram shows the electrical connections of the integrated EMCS-ST drive to the load voltage
supply and to the higher-level IO-Link master in IO-Link operation.

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Festo — EMCS-ST — 2021-03b
Installation
Current consumption of IO-Link power supply [Logic]
An input current at pin 1 (L+) of 100 ... 150 mA is required for operation.
1
2
3
Fig. 7: Wiring diagram: IO-Link operation
1
PELV fixed power supply for the load
voltage supply
2
Integrated drive EMCS-ST
3
IO-Link master with IO-Link interface

Festo — EMCS-ST — 2021-03b
Installation
19
1
2
3
4
Fig. 8: Wiring diagram: IO-Link operation with adapter
1
PELV fixed power supply for load voltage
supply
2
Integrated drive EMCS-ST
3
IO-Link master with IO-Link interface
4
Adapter NEFC
Core colours of Festo cables:
BK = black, BN = brown, BU = blue, GN = green, GY = grey, PK = pink, WH = white, YE = yellow
8.5 Electrical interfaces
All product variants of the integrated drive EMCS-ST support the following electrical interfaces
depending on the higher-level control interface:
Electrical interface Connection Control interface
Digital inputs/
outputs
IO-Link Master
Digital inputs/outputs (DIO) [Logic] yes –
IO-Link (LK) – yes
Logic voltage supply yes yes
Load voltage supply [Power] yes yes
Tab. 8: Overview of electrical interfaces
The electrical interfaces are located on the top of the controller housing.

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Festo — EMCS-ST — 2021-03b
Installation
1 2
Fig. 9: Overview of electrical interfaces
1
Interface [Power]
2
Interface [Logic]
8.5.1 Connection [Logic]: digital inputs/outputs (DIO), logic power supply
The [Logic] connector is used to exchange digital input/output signals (PNP or NPN logic) with the
higher-level controller and to supply the logic part of the electronics with electrical power.
In NPN operation defined levels must be present at the digital inputs DI1 / DI2 of the EMCS, e.g. by
controller outputs with pull-up resistors.