maxon motor EPOS4 50/5 Reference Manual

Page 1
maxon motor control
EPOS4 Positioning Controller
Hardware Reference
Edition May 2017
Positioning Controller
P/N 546047
Hardware Reference
maxon motor ag Brünigstrasse 220 P.O.Box 263 CH-6072 Sachseln Phone +41 41 666 15 00 Fax +41 41 666 16 50 www.maxonmotor.com
Page 2

TABLE OF CONTENTS

1 About 5
1.1 About this Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 About the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 About the Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Specifications 9
2.1 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Thermal Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3 Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4 Dimensional Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.5 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3Setup 15
3.1 Generally applicable Rules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2 Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3.1 Power Supply (X1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.3.2 Logic Supply (X2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.3.3 Motor (X3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3.4 Hall Sensor (X4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.3.5 Encoder (X5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.3.6 Sensor (X6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.3.7 Digital I/O (X7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.3.8 Analog I/O (X8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.3.9 STO (X9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
3.3.10 RS232 (X10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
3.3.11 CAN 1 (X11) & CAN 2 (X12) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
3.3.12 USB (X13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
3.3.13 Extension NET IN (X14) & Extension NET OUT (X15) . . . . . . . . . . . . . . . . . . . . . . . . . 50
3.3.14 Extension Signal (X16) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

READ THIS FIRST

These instructions are intended for qualified technical personnel. Prior commencing with any activities
• you must carefully read and understand this manual and
• you must follow the instructions given therein. The EPOS4 50/5 positioning controller is considered as partly completed machinery according to EU Directive 2006/42/EC,
Article 2, Clause (g) and is intended to be incorporated into or assembled with other machinery or other partly com-
pleted machinery or equipment. Therefore, you must not put the device into service,…
• unless you have made completely sure that the ot he r ma chinery fully complies with the EU directive’s requirements!
• unless the other machinery fulfills all relevant health and safety aspects!
• unless all respective interfaces have been established and fulfill the herein stated requirements!
maxon motor control
A-2 Document ID: rel6852 EPOS4 Positioning Controller
Edition: May 2017 EPOS4 50/5 Hardware Reference
© 2017 maxon motor. Subject to change without prior notice.
Page 3
3.3.15 Extension Slots (EXT1 & EXT2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
3.3.16 DIP Switch Configuration (SW1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
3.3.17 Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
3.4 Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4Wiring 59
4.1 Possible Combinations to connect a Motor . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4.2 Main Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.3 Excerpts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
4.3.1 Power & Logic Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
4.3.2 DC Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
4.3.3 EC (BLDC) Motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
4.3.4 Hall Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
4.3.5 Digital Incremental Encoder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
4.3.6 Digital & Digital Incremental Encoder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
4.3.7 Digital & Analog Incremental Encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
4.3.8 Digital Incremental & SSI Encoder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
4.3.9 Analog Incremental Encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
4.3.10 SSI Encoder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
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© 2017 maxon motor. Subject to change without prior notice.
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1 About

1.1 About this Document

1.1.1 Intended Purpose

Use the document to…
–stay safe, –be fast, –end up with set up and ready-to-go equipment.
The purpose of the present document is to familiarize you with the EPOS4 50/5 positioning controller. It will highlight the tasks for safe and adequate installation and/or commissioning. Follow the described instructions …
to avoid dangerous situations,
to keep installation and/or commissioning time at a minimum,
to increase reliability and service life of the described equipment.
The present document is part of a documentation set and contains performance data and specifications, information on fulfilled standards, details on connections and pin assignment, and wiring examples. The below overview shows the documentation hierarchy and the interrelationship of its individual parts:
About
About this Document
Figure 1-1 Documentation structure

1.1.2 T arget Audience

The present document is intended for trained and skilled personnel. It conveys information on how to understand and fulfill the respective work and duties.
maxon motor control EPOS4 Positioning Controller Document ID: rel6852 EPOS4 50/5 Hardware Reference Edition: May 2017
© 2017 maxon motor. Subject to change without prior notice.
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About About this Document

1.1.3 How to use

Throughout the document, the following notations and codes will be used.
Notation Meaning
(n) refers to an item (such as part numbers, list items, etc.)
denotes “see”, “see also”, “take note of” or “go to”
Table 1-1 Notation used

1.1.4 Symbols & Signs

In the course of the present document, the following symbols and sings will be used.
Type Symbol Meaning
Indicates an imminent hazardous situation. If not avoided, it will result in death or serious in jury.
Indicates a potential hazardous situation. If not avoided, it can result in death or serious injury.
Indicates a probable hazardous situation or calls
the attention to unsafe practices. If not avoided, it
Safety alert
DANGER
WARNING
(typical)
CAUTION
may result in injury.
Prohibited action
Indicates a dangerous action. Hence, you must not!
(typical)
Mandatory action
Indicates a mandatory action. Hence, you must!
(typical)
Requirement / Note / Remark
Information
Best practice
Material Damage
Table 1-2 Symbols and signs
Indicates an activity you must perform prior continuing, or gives information on a particular item you need to observe.
Indicates an advice or recommendation on the easiest and best way to further proceed.
Indicates information particular to possible damage of the equipment.
maxon motor control
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Edition: May 2017 EPOS4 50/5 Hardware Reference
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About
About the Device

1.1.5 Trademarks and Brand Names

For easier legibility, registered brand names are listed below and will not be further tagged with their respective trademark. It must be understood that the brands (the list below is not necessarily conclud­ing) are protected by copyright and/or other intellectual property rights even if their legal trademarks are omitted in the later course of this document.
Brand Name Trademark Owner
Adobe® Reader® © Adobe Systems Incorporated, USA-San Jose, CA
BiSS © iC-Haus GmbH, DE-Bodenheim
CANopen® CiA®
© CiA CAN in Automation e.V, DE-Nuremberg
CLIK-Mate™ Micro-Fit™ Mini-Fit Jr.™
© Molex, USA-Lisle, IL
Mega-Fit®
EnDat © DR. JOHANNES HEIDENHAIN GmbH, DE-Traunreut
EtherCAT®
© EtherCAT Technology Group, DE-Nuremberg, licensed by Beckhoff Automation GmbH, DE-Verl
Linux® © Linus Torvalds (The Linux Foundation, USA-San Francisco CA)
PCI Express® PCIe®
© PCI-SIG, USA-Beaverton, OR
TwinCAT® © Beckhoff Automation GmbH, DE-Verl
Windows® © Microsoft Corporation, USA-Redmond, WA
Table 1-3 Brand names and trademark owners

1.1.6 Copyright

© 2017 maxon motor. All rights reserved.
The present document – including all parts thereof – is protected by copyright. Any use (including repro­duction, translation, microfilming, and other means of electronic data processing) beyond the narrow restrictions of the copyright law without the prior approval of maxon motor ag, is not permitted and sub­ject to prosecution under the applicable law.

1.2 About the Device

Capabilities of the device, included fea­tures, and supported motors.
maxon motor control’s EPOS4 50/5 is a small-sized, full digital, smart positioning control unit. Its high power density allows flexible use for brushed DC and brushless EC (BLDC) motors up to approximately 250 Watts with various feedback options, such as Hall sensors, incremental encoders as well as abso­lute sensors in a multitude of drive applications.
The device is specially designed to be commanded and controlled as a slave node in a CANopen net­work. In addition, the unit can be operated via any USB or RS232 communication port of a Windows or Linux workstation. Moreover, the integrated extension interface allows pooling with optionally available communication interfaces, such as EtherCAT or other additional functionalities.
Latest technology, such as field-oriented control (FOC) and acceleration/velocity feed forward in combi­nation with highest control cycle rates allow sophisticated, ease-of-use motion control.
Find the latest edition of the present document as well as additional documentation and software for EPOS4 positioning controllers also on the Internet: http://epos.maxonmotor.com
maxon motor ag
Brünigstrasse 220 P.O.Box 263 CH-6072 Sachseln
Phone
Fax
Web
+41 41 666 15 00 +41 41 666 16 50 www.maxonmotor.com
maxon motor control EPOS4 Positioning Controller Document ID: rel6852 EPOS4 50/5 Hardware Reference Edition: May 2017
© 2017 maxon motor. Subject to change without prior notice.
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About About the Safety Precautions

1.3 About the Safety Precautions

Keep in mind: Safety first! Always!
Make sure that you have read and understood the note “READ THIS FIRST” on page A-2!
Do not engage with any work unless you possess the stated skills (chapter “1.1.2 Target
Audience” on page 1-5)!
Refer to chapter “1.1.4 Symbols & Signs” on page 1-6 to understand the subsequently used
indicators!
You must observe any regulation applicable in the country and/or at the site of implementation with regard to health and safety/accident prevention and/or environmental protection!
DANGER
High voltage and/or electrical shock Touching live wires causes death or serious injuries!
• Consider any power cable as connected to live power, unless having proven the opposite!
• Make sure that neither end of cable is connected to live power!
• Make sure that power source cannot be engaged while work is in process!
• Obey lock-out/tag-out procedures!
• Make sure to securely lock any power engaging equipment against unintentional engagement and tag it with your name!
Requirements
• Make sure that all associated devices and components are installed according to local regulations.
• Be aware that, by principle, an electronic apparatus cannot be considered fail-safe. Therefore, you must make sure that any machine/apparatus has been fitted with independent monitoring and safety equipment. If the machine/apparatus should break down, if it is operated incorrectly, if the control unit breaks down or if the cables break or get disconnected, etc., the complete drive system must return – and be kept – in a safe operating mode.
• Be aware that you are not entitled to perform any repair on components supplied by maxon motor.
Electrostatic sensitive device (ESD)
• Wear working cloth and use equipment in compliance with ESD protective measures.
• Handle device with extra care.
maxon motor control
1-8 Document ID: rel6852 EPOS4 Positioning Controller
Edition: May 2017 EPOS4 50/5 Hardware Reference
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2 Specifications

2.1 Technical Data

Nominal power supply voltage +V
Nominal logic supply voltage +V
Absolute supply voltage +V
Output voltage (max.)
Output current I
Pulse Width Modulation frequency 50 kHz
Electrical
Rating
Inputs
&
Outputs
Continued on next page.
Sampling rate PI current controller 25 kHz (40 μs)
Sampling rate PID speed controller 2.5 kHz (400 μs)
Sampling rate PID positioning controller 2.5 kHz (400 μs)
Max. efficiency 98% (Figure 2-3)
Max. speed DC motor
Max. speed EC motor (block) 100’000 rpm (1 pole pair)
Max. speed EC motor (sinusoidal) 50’000 rpm (1 pole pair)
Built-in motor choke 3 x 15 μH; 5 A
Digital Input 1 (general purpose) Digital Input 2 (general purpose) Digital Input 3 (general purpose) Digital Input 4 (general purpose)
Digital Output 1 (general purpose) Digital Output 2 (general purpose)
STO Input 1 STO Input 2
STO Output
Analog Input 1 Analog Input 2
Analog Output 1 Analog Output 2
Digital Hall sensor signals H1, H2, H3
Digital incremental encoder signals A, A\, B, B\, I, I\
Sensor signals (choice between multiple functions)
• Digital incremental encoder 3-channel, EIA RS422, max. 6.25 MHz
• Analog incremental encoder* 3-channel, resolution 12-bit, ±1.8 V, differential
• SSI absolute encoder configurable, EIA RS422, 5 MHz
• High-speed digital input 1…4 and High-speed digital output 1 EIA RS422, max. 6.25 MHz
cont
/ I
(<15 s)
max
EPOS4 50/5 (546047)
CC
C
/ +V
min
max
Specifications
Technical Data
10…50 VDC
10…50 VDC
8 VDC / 56 VDC
0.9 x +V
CC
5 A / 15 A
limited by max. permissible speed (motor) and max. output voltage (controller)
DIP switch-selectable levels:
• Logic: +2.0…+30 VDC
• PLC: +9.0…+30 VDC
max. 36 VDC / IL 500 mA (open collector with internal pull-up)
+4.5…+30 VDC (optically isolated)
max. 30 VDC / IL 15 mA (optically isolated with self-resetting short-circuit protection)
Resolution 12-bit, 10…+10 V, 10 kHz, differential
Resolution 12-bit, 4…+4 V, 25 kHz, referenced to GND
+2.0…+24 VDC (internal pull-up)
EIA RS422, max. 6.25 MHz
maxon motor control EPOS4 Positioning Controller Document ID: rel6852 EPOS4 50/5 Hardware Reference Edition: May 2017
© 2017 maxon motor. Subject to change without prior notice.
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Specifications Technical Data
Voltage
Outputs
Motor
Connections
Interfaces
Status
Indicators
Physical
Environ-
mental
Conditions
EPOS4 50/5 (546047)
Sensor supply voltage V
Auxiliary output voltage V
+5 VDC / IL 100 mA
Sensor
+5 VDC / IL 150 mA
Aux
DC motor + Motor, Motor
EC motor Motor winding 1, Motor winding 2, Motor winding 3
RS232 max. 115’200 bit/s
USB 2.0 / USB 3.0 Full Speed
CAN max. 1 Mbit/s
EtherCAT 3) Full duplex (100 Mbit/s) as to IEEE 802.3 100 Base T
Operation green LED
Device Status
Error red LED
RUN state green LED
NET Status
Error red LED
NET Port Link activity green LED
Weight approx. 206 g
Dimensions (L x W x H) 105.0 x 83.0 x 38.7 mm
Mounting mounting holes for M4 screws
Operation 30…+50 °C
+50…+80 °C; Derating: 0.167 A/°C (Figure 2-2)
Temperature
Extended range 1)
Additional derating with inserted extension card: Ambient temperature
4)
less 5 °C (Figure 2-2)
Storage 40…+85 °C
Altitude 2) Operation 0…10’000 m MSL
Humidity 5…90% (condensation not permitted)
Legend
* Available with an upcoming firmware release.
1) Operation within the extended range is permitted. However, a respective derating (declination of output current I
cont
)
as to the stated values will apply.
2) Operating altitude in meters above Mean Sea Level, MSL.
3) Available with optional EPOS4 EtherCAT Card.
4) Derating further increases with an inserted extension card. For the actual value, consult Figure 2-2 and shift the
graph horizontally to the left by the specified value.
Table 2-4 Technical data
maxon motor control
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Edition: May 2017 EPOS4 50/5 Hardware Reference
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2.2 Thermal Data

2.2.1 Derating of Output Current

Specifications
Thermal Data
Figure 2-2 Derating of output current
maxon motor control EPOS4 Positioning Controller Document ID: rel6852 EPOS4 50/5 Hardware Reference Edition: May 2017
© 2017 maxon motor. Subject to change without prior notice.
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Specifications Limitations

2.2.2 Power Dissipation and Efficiency

Figure 2-3 Power dissipation and efficiency

2.3 Limitations

Table 2-5 Limitations
Protection functionality Switch-off threshold Recovery threshold
Undervoltage 8.0 V 8.5 V
Overvoltage 58 V 56 V
Overcurrent 20 A
Thermal overload 100 °C 90 °C
maxon motor control
2-12 Document ID: rel6852 EPOS4 Positioning Controller
Edition: May 2017 EPOS4 50/5 Hardware Reference
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2.4 Dimensional Drawing

Specifications
Dimensional Drawing
Figure 2-4 Dimensional drawing [mm]
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Specifications Standards

2.5 Standards

The described device has been successfully tested for compliance with the below listed standards. In practical terms, only the complete system (the fully operational equipment comprising all individual com­ponents, such as motor, servo controller, power supply unit, EMC filter, cabling etc.) can undergo an EMC test to ensure interference-free operation.
Important Notice
The device’s compliance with the mentioned standards does not imply its compliance within the final, ready to operate setup. In order to achieve compliance of your operational system, you must perform EMC testing of the involved equipment as a whole.
Generic
Applied
Electromagnetic Compatibility
IEC/EN 61000-6-2 Immunity for industrial environments
IEC/EN 61000-6-3
IEC/EN 55022 (CISPR22)
IEC/EN 61000-4-3
Emission standard for residential, commercial and light­industrial environments
Radio disturbance characteristics / radio interference
Radiated, radio-frequency, electromagnetic field immunity test >10 V/m
IEC/EN 61000-4-4 Electrical fast transient/burst immunity test ±2 kV
IEC/EN 61000-4-6
Immunity to conducted disturbances, induced by radio­frequency fields 10 Vrms
Others
Environment
IEC/EN 60068-2-6
MIL-STD-810F
Environmental testing – Test Fc: Vibration (sinusoidal,
2
10…500 Hz, 20 m/s
)
Random transport (10…500 Hz up to 2.53 g
Safety UL File Number Unassembled printed circuit board: E229342
Reliability prediction of electronic equipment Environment: Ground, benign (GB)
Reliability MIL-HDBK-217F
Ambient temperature: 298 K (25 °C) Component stress: In accordance with circuit diagram and nominal power Mean Time Between Failures (MTBF): 296'741 hours
Table 2-6 Standards
rms
)
maxon motor control
2-14 Document ID: rel6852 EPOS4 Positioning Controller
Edition: May 2017 EPOS4 50/5 Hardware Reference
© 2017 maxon motor. Subject to change without prior notice.
Page 15

3Setup

IMPORTANT NOTICE: PREREQUISITES FOR PERMISSION TO COMMENCE INST ALLATION The EPOS4 50/5 positioning controller is considered as partly completed machinery according to EU
Directive 2006/42/EC, Article 2, Clause (g) and is intended to be incorporated into or assembled with other machinery or other partly completed machinery or equipm en t.
WARNING
Risk of injury Operating the device without the full compliance of the surrounding system with the EU Direc-
tive 2006/42/EC may cause serious injuries!
• Do not operate the device, unless you have made completely sure that the other machinery fully complies with the EU directive’s requirements!
• Do not operate the device, unless the other machinery fulfills all relevant health and safety aspects!
• Do not operate the device, unless all respective interfaces have been established and fulfill the requirements stated in this document!

3.1 Generally applicable Rules

Setup
Generally applicable Rules
Maximal permitted supply voltage
• Make sure that supply power is between 10…50 VDC.
• Supply voltages above 56 VDC, or wrong polarity will destroy the unit.
• Note that the necessary output current is depending on the load torque. Yet, the output current limits are as follows: – continuous max. 5 A – short-time (acceleration) max. 15 A
Hot plugging the USB interface may cause hardware damage
If the USB interface is being hot-plugged (connecting while the power supply is on), the possibly high potential differences of the two power supplies of controller and PC/Notebook can lead to damaged hardware.
• Avoid potential differences between the power supply of controller and PC/Notebook or, if possible, balance them.
• Insert the USB connector first, then switch on the power supply of the controller.
Hot plugging/hot swapping the extension slots may cause hardware damage
Switch off the controller’s power supply before removing or inserting an extension card.
maxon motor control EPOS4 Positioning Controller Document ID: rel6852 EPOS4 50/5 Hardware Reference Edition: May 2017
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Setup Cabling

3.2 Cabling

PLUG&PLAY
Take advantage of maxon’s prefab cable assemblies. They come as ready-to-use parts and will help to reduce commissioning time to a minimum.
a) Check the following table and find the part number of the cable assembly that matches the
setup you will be using.
b) Follow the cross-reference to get the cable’s pin assignment.
Prefab Cable Assembly
Connector
X1 Power Cable 275829 3-19
X2 Power Cable 275829 3-19
X3 Motor Cable 275851 3-22
X4 Hall Sensor Cable 275878 3-23
X5 Encoder Cable 275934 3-26
X6 Sensor Cable 5x2core 520852 3-29
X7 Signal Cable 8core 520853 3-38
X8 Signal Cable 7core 520854 3-42
X9 Signal Cable 8core 520853 3-38
X10 RS232-COM Cable 520856 3-46
X11
X12
X13 USB Type A - micro B Cable 403968 3-49
X14 Ethernet Cable 422827 3-51
X15 Ethernet Cable 422827 3-51
X16 Sensor Cable 5x2core 520852 3-29
Designation
CAN-COM Cable CAN-CAN Cable
CAN-COM Cable CAN-CAN Cable
Part
Number
520857 520858
520857 520858
Page
3-47 3-48
3-47 3-48
Table 3-7 Prefab maxon cables
maxon motor control
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Setup
Cabling
MAKE&BAKE YOUR OWN
If you decide not to employ maxon motor’s prefab cable assemblies, you might wish to use the prepack­aged kit that contains all connectors required to make up your own cabling.
EPOS4 Connector Set (520859)
Connector Specification Quantity
Connectors
Molex Mega-Fit, 2 poles (171692-0102) 1
X1 / X2 Molex Mini-Fit Jr., 2 poles (39-01-2020) 2
X3 Molex Mini-Fit Jr., 4 poles (39-01-2040) 1
Molex Mega-Fit, 4 poles (171692-0104) 1
X4 Molex Micro-Fit 3.0, 6 poles (430-25-0600) 1
X6 / X16 Molex CLIK-Mate, dual row, 10 poles (503149-1000) 1
X7 / X9 Molex CLIK-Mate, single row, 8 poles (502578-0800) 2
X8 Molex CLIK-Mate, single row, 7 poles (502578-0700) 1
X10 Molex CLIK-Mate, single row, 5 poles (502578-0500) 1
X11 / X12 Molex CLIK-Mate, single row, 4 poles (502578-0400) 2
Crimp Te rminals
Molex Mega-Fit, female crimp terminal (172063-0311) 7
X1 / X2 / X3 Molex Mini-Fit Jr. female crimp terminal (45750-1111) 9
X4 Molex Micro-Fit 3.0 female crimp terminal (43030-0010) 7
X6…X12 /
X16
Molex CLIK-Mate crimp terminal (502579-0100) 44
Accessories
X5 3M Retainer Clip with strain relief, height 13.5 mm (3505-8110) 1
Table 3-8 EPOS4 Connector Set – Content
T
OOLS
Tool Manufacturer Part Number
Hand crimper for CLIK-Mate crimp terminals Molex 63819-4600
Hand crimper for Micro-Fit 3.0 crimp terminals Molex 63819-0000
Hand crimper for Mini-Fit crimp terminals Molex 63819-0900
Table 3-9 Recommended tools
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Setup Connections

3.3 Connections

The actual connection will depend on the overall configuration of your drive system and the type of motor you will be using.
For each connector you will find detailed information on the pin assignment, the available accessories and prefab cable assemblies, the requirements that must be met, if any, and the circuitry.
How to read pin assignment tables
In the later course of the document you will find tables containing information on the EPOS4’s hardware connectors, their wired signals and assigned pins as well as details on the available prefab cables.
• The first column describes both the pin number of the connector and of the matching prefab maxon cable’s Head A.
• The second column describes the cable core color of the prefab maxon cable.
• The third column describes the pin number of the prefab maxon cable’s Head B.
Follow the description in given order and choose the wiring diagram (as of page 4-59) that best suits the components you are using.
X1
X2
X3
X4
X5
X6
X7
X8
X9
X10
X11
X12
X13
X14
Power Supply page 3-19
Logic Supply page 3-21
Motor page 3-22
Hall Sensor page 3-23
Encoder page 3-25
Sensor page 3-28
Digital I/O page 3-38
Analog I/O page 3-42
STO page 3-44
RS232 page 3-46
CAN 1 page 3-47
CAN 2 page 3-47
USB page 3-49
5)
Extension NET IN page 3-50
5)
X15
X16
Extension NET OUT page 3-50
5)
Extension Signal page 3-52
5) Requires an optionally available maxon Extension Card
Figure 3-5 Connectors
maxon motor control
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Page 19
Connections

3.3.1 Power Supply (X1)

Basically, any power supply may be used provided that it meets the stated minimum requirements.
Best practice
Keep the motor mechanically disconnected during the setup and adjustment phase.
Figure 3-6 Power supply connector X1
Setup
X1
Head A
Prefab
Cable
Head B
Signal Description
Pin Color Pin
1black GND Ground
2 black +
+V
CC
Nominal power supply voltage (+10…+50 VDC)
Table 3-10 Power supply connector X1 – Pin assignment
Power Cable (275829)
Cross-section
2 x 0.75 mm2, grey
Length 3 m
Plug Molex Mini-Fit Jr., 2 poles (39-01-2020)
Head A
Contacts Molex Mini-Fit Jr. female crimp terminals (45750)
Head B
Wire end sleeves 0.75 mm
2
Table 3-11 Power Cable
Power supply requirements
Output voltage
+VCC 10…50 VDC
Absolute output voltage min. 8 VDC; max. 56 VDC
Depending on load
Output current
• continuous max. 5 A
• short-time (acceleration, <15 s) max. 15 A
Continued on next page.
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Setup
V
CC
U
N
n
O
-------
n
Δn
ΔM
-------- -
M+


1
0.9
-------
⋅⋅1 V[]+
Connections
1) Use the formula below to calculate the required voltage under load.
2) Choose a power supply according to the calculated voltage. Thereby consider:
a) During braking of the load, the power supply must be capable of buffering the recovered
kinetic energy (for example, in a capacitor).
b) If you are using an electronically stabilized power supply, make sure that the overcurrent
protection circuit is configured inoperative within the operating range.
The formula already takes the following into account:
• Maximum PWM duty cycle of 90%
• Controller’s max. voltage drop of 1 V @ 5 A
K
NOWN VALUES:
Operating torque M [mNm]
Operating speed n [rpm]
Nominal motor voltage U
Motor no-load speed at U
Speed/torque gradient of the motor Δn/ΔM [rpm/mNm]
OUGHT VALUE:
S
Supply voltage +VCC [Volt]
[Volt]
N
; nO [rpm]
N
OLUTION:
S
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Setup
Connections

3.3.2 Logic Supply (X2)

Separate power supply
The logic part of the controller may be supplied by a separate supply voltage provided that it meets the below stated minimum requirement:
If not supplied separately, the logic supply is internally connected to the power supply.
Figure 3-7 Logic supply connector X2
X2
Head A
Prefab
Cable
Head B
Signal Description
Pin Color Pin
1black GND Ground
2 black +
+V
C
Nominal logic supply voltage (+10…+50 VDC)
Table 3-12 Logic supply connector X2 – Pin assignment
For the matching prefab cable assembly Table 3-11.
Power supply requirement s
Output voltage
+VC 10…50 VDC
Absolute supply voltage min. 8 VDC; max. 56 VDC
Min. output power
PC min. 3.5 W
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Setup Connections

3.3.3 Motor (X3)

The controller is set to drive either maxon DC motors (brushed DC motor) or maxon EC motors (BLDC, brushless DC motor).
Figure 3-8 Motor connectors X3
X3
Head A
Prefab
Cable
Head B
Signal Description
Pin Color Pin
1 white Motor (+M) DC motor: Motor +
2 brown Motor (M) DC motor: Motor
3 green not connected
4 black Motor shield Cable shield
Table 3-13 Motor connector X3 – Pin assignment for maxon DC motor
X3
Head A
Prefab
Cable
Head B
Signal Description
Pin Color Pin
1 white Motor winding 1 EC motor: Winding 1
2 brown Motor winding 2 EC motor: Winding 2
3 green Motor winding 3 EC motor: Winding 3
4 black Motor shield Cable shield
Table 3-14 Motor connector X3– Pin assignment for maxon EC motor
Motor Cable (275851)
Cross-section
3 x 0.75 mm2, shielded, grey
Length 3 m
Plug Molex Mini-Fit Jr., 4 poles (39-01-2040)
Head A
Contacts Molex Mini-Fit Jr. female crimp terminals (45750)
Head B
Wire end sleeves 0.75 mm
2
Table 3-15 Motor Cable
maxon motor control
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Page 23

3.3.4 Hall Sensor (X4)

Suitable Hall effect sensors IC use «Schmitt trigger» with open collector output.
Figure 3-9 Hall sensor connector X4
Setup
Connections
X4
Head A
Prefab
Cable
Head B
Signal Description
Pin Color Pin
1 green Hall sensor 1 Hall sensor 1 input
2 brown Hall sensor 2 Hall sensor 2 input
3 white Hall sensor 3 Hall sensor 3 input
4 yellow GND Ground
V
5grey
Sensor supply voltage (+5 VDC; IL 100 mA)
Sensor
6 black Hall shield Cable shield
Table 3-16 Hall sensor connector X4 – Pin assignment
Hall Sensor Cable (275878)
Cross-section
5 x 0.14 mm
2
, shielded, grey
Length 3 m
Plug Molex Micro-Fit 3.0, 6 poles (430-25-0600)
Head A
Contacts Molex Micro-Fit 3.0 female crimp terminals (430-30-xxxx)
Head B
Wire end sleeves 0.14 mm
2
Table 3-17 Hall Sensor Cable
Continued on next page.
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Setup Connections
Hall sensor
Sensor supply voltage (V
Sensor
)
+5 VDC
Max. Hall sensor supply current 30 mA
Input voltage 0…24 VDC
Max. input voltage +24 VDC
Logic 0 typically <0.8 V
Logic 1 typically >2.0 V
Internal pull-up resistor 10 kΩ (referenced to +5.45 V)
Figure 3-10 Hall sensor 1 input circuit (analogously valid for Hall sensors 2 & 3)
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Setup
Connections

3.3.5 Encoder (X5)

Best practice
• Differential signals offer good resistance against electrical interference. Therefore, we recommend using a differential scheme. Nevertheless, the controller supports both schemes – differential and
single-ended (unsymmetrical).
• For best performance, we strongly recommend using encoders with a line driver. Otherwise, lim­itations may apply due to slow switching edges.
• Even though 2-channel will do, we strongly recommend to use only 3-channel versions.
Figure 3-11 Encoder connector X5
X5
Head A
Prefab
Cable
Head B
Signal Description
Pin Color Pin
1 brown 1 not connected
V
2white2
Sensor supply voltage (+5 VDC; IL 100 mA)
Sensor
3 red 3 GND Ground
4 white 4 not connected
5 orange 5 Channel A\ Channel A complement
6 white 6 Channel A Channel A
7 yellow 7 Channel B\ Channel B complement
8 white 8 Channel B Channel B
9 green 9 Channel I\ Channel I complement
10 white 10 Channel I Channel I
Table 3-18 Encoder connector X5 – Pin assignment
Accessories
For sockets with strain relief:
1 retainer clip, height 13.5 mm, 3M (3505-8110) Suitable strain relief
Retainer
For sockets without strain relief:
1 retainer clip, height 7.9 mm, 3M (3505-8010)
Latch For sockets with strain relief: 2 pieces, 3M (3505-33B)
Table 3-19 Encoder connector X5 – Accessories
Continued on next page.
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Setup Connections
Encoder Cable (275934)
Cross-section 10 x AWG28, round-jacket, twisted pair flat cable, pitch 1.27 mm, grey
Length 3.2 m
Head A DIN 41651 female, pitch 2.54 mm, 10 poles, with strain relief
Head B DIN 41651 plug, pitch 2.54 mm, 10 poles, with strain relief
Table 3-20 Encoder Cable
Encoder (differential)
Sensor supply voltage (V
Sensor
)
+5 VDC
Max. encoder supply current 70 mA
Min. differential input voltage ±200 mV
Max. input voltage ±12 VDC
Line receiver (internal) EIA RS422 standard
Max. input frequency 6.25 MHz
Figure 3-12 Encoder input circuit Ch A “differential” (analogously valid for Ch B & Ch I)
Continued on next page.
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Encoder (single-ended)
Sensor supply voltage (V
Sensor
)
+5 VDC
Max. encoder supply current 70 mA
Input voltage 0…5 VDC
Max. input voltage ±12 VDC
Logic 0 <1.0 V
Logic 1 >2.4 V
Input high current
Input low current
IIH = typically +420 μA @ 5 V
IIL = typically −170 μA @ 0 V
Push-pull Open collector
Max. input frequency
6.25 MHz
Setup
Connections
40 kHz (internal pull-up only)
150 kHz (additional external 3k3 pull-up)
Figure 3-13 Encoder input circuit Ch A “single-ended” (analogously valid for Ch B & Ch I)
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Setup Connections

3.3.6 Sensor (X6)

Additional sensors, both incremental and serial encoders, can be connected.
Check on the applied sensor’s data sheet
If the specified inrush current or the maximum continuous current of the sensor should exceed 150 mA, you can connect the sensor supply voltage (V
) in parallel to the auxiliary output voltage (V
Sensor
Aux
).
Figure 3-14 Sensor connector X6
X6
Head A
Prefab
Cable
Head B
Signal Description
Pin Color Pin
1white1
Channel A HsDigIN1
Channel A\
2brown2
HsDigIN1\
3 green 3
Channel B HsDigIN2
Channel B\
4 yellow 4
HsDigIN2\
Channel I
5grey5
HsDigIN3 Clock HsDigOUT1
Channel I\
6pink6
HsDigIN3\ Clock\ HsDigOUT1\
7blue7
8red8
Data HsDigIN4
Data\ HsDigIN4\
9 black 9 GND Ground
Auxiliary output voltage (+5 VDC; IL 150 mA)
10 violet 10
V
Aux
Digital/analog incremental encoder channel A High-speed digital input 1
Digital/analog incremental encoder channel A complement High-speed digital input 1 complement
Digital/analog incremental encoder channel B High-speed digital input 2
Digital/analog incremental encoder channel B complement High-speed digital input 2 complement
Digital/analog incremental encoder channel I High-speed digital input 3 Clock (SSI) High-speed digital output 1
Digital/analog incremental encoder channel I complement High-speed digital input 3 complement Clock (SSI) complement High-speed digital output 1 complement
Data (SSI) High-speed digital input 4
Data (SSI) complement High-speed digital input 4 complement
Table 3-21 Sensor connector X6 – Pin assignment
Continued on next page.
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Sensor Cable 5x2core (520852)
Setup
Connections
Cross-section
5 x 2 x 0.14 mm
2
, twisted pair, grey
Length 3 m
Plug Molex CLIK-Mate, dual row, 10 poles (503149-1000)
Head A
Contacts Molex CLIK-Mate crimp terminals (502579)
Head B
Wire end sleeves 0.14 mm
2
Table 3-22 Sensor Cable 5x2core
3.3.6.1 Incremental Encoder
Digital incremental encoder (differential)
Auxiliary output voltage (V
Aux
)
+5 VDC
Max. auxiliary supply current 150 mA
Min. differential input voltage ±200 mV
Max. input voltage +12 VDC
Line receiver (internal) EIA RS422 standard
Max. input frequency 6.25 MHz
Figure 3-15 Digital incremental encoder input circuit Ch A “differential” (analogously valid for Ch B)
Continued on next page.
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Setup Connections
Figure 3-16 Digital incremental encoder input circuit Ch I
Continued on next page.
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Digital incremental encoder (single-ended)
Auxiliary output voltage (V
Aux
)
+5 VDC
Max. auxiliary supply current 150 mA
Input voltage 0…5 VDC
Max. input voltage ±12 VDC
Logic 0 <1.0 V
Logic 1 >2.4 V
Input high current
Input low current
typically 210 μA @ +5 VDC (channel A, B) typically 60 μA @ +5 VDC (channel I)
typically 80 μA @ 0 VDC (channel A, B) typically 7 μA @ 0 VDC (channel I)
Push-pull Open collector
Max. input frequency
6.25 MHz
Setup
Connections
100 kHz (additional external 3k3 pull-up)
Figure 3-17 Digital incremental encoder input circuit Ch A “single-ended” (analogously valid for Ch B)
Continued on next page.
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Setup Connections
Figure 3-18 Digital incremental encoder input circuit Ch I
Continued on next page.
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Analog incremental encoder (differential)
Auxiliary output voltage (V
Aux
)
+5 VDC
Max. auxiliary supply current 150 mA
Input voltage ±1.8 V (differential)
Max. input voltage ±12 VDC
Common mode voltage 9…+4 VDC (referenced to GND)
Input resistance typically 10 kΩ
A/D converter 12-bit
Resolution 0.88 mV
Bandwidth 10 kHz
Setup
Connections
Figure 3-19 Analog incremental encoder input circuit Ch A “differential” (analogously valid for Ch B)
Continued on next page.
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Setup Connections
Figure 3-20 Analog incremental encoder input circuit Ch I (digital evaluation)
Continued on next page.
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3.3.6.2 SSI Absolute Encoder
SSI absolute encoder
Auxiliary output voltage (V
Aux
)
+5 VDC
Max. auxiliary supply current 150 mA
Min. differential input voltage ±200 mV
Min. differential output voltage ±1.8 V @ external load R=54
Max. output current 40 mA
Line receiver (internal) EIA RS422 standard
Max. encoder input/output frequency 5 MHz
Setup
Connections
Figure 3-21 SSI absolute encoder data input
Figure 3-22 SSI absolute encoder clock output
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Setup Connections
3.3.6.3 High-speed Digital I/Os
Alternatively, the sensor interface can be used for high-speed digital I/O operation.
High-speed digital input 1…4 (differential)
Max. input voltage ±12 VDC
Min. differential input voltage ±200 mV
Line receiver (internal) EIA RS422 standard
Max. input frequency 6.25 MHz
Figure 3-23 HsDigIN1 circuit “differential” (analogously valid for HsDigIN2…4)
High-speed digital input 1…4 (single-ended)
Input voltage 0…5 VDC
Max. input voltage ±12 VDC
Logic 0 <1.0 V
Logic 1 >2.4 V
Input high current
Input low current
typically 210 μA @ +5 VDC (HsDigIN1, 2) typically 60 μA @ +5 VDC (HsDigIN3, 4)
typically 80 μA @ 0 VDC (HsDigIN1, 2) typically 7 μA @ 0 VDC (HsDigIN3, 4)
Max. input frequency 6.25 MHz
Figure 3-24 HsDigIN1 circuit “single-ended” (analogously valid for HsDigIN2…4)
Continued on next page.
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High-speed digital output 1
Min. differential output voltage ±1.8 V @ external load R=54
Max. output current 40 mA
Line transceiver (internal) EIA RS422 standard
Max. output frequency 6.25 MHz
Setup
Connections
Figure 3-25 HsDigOUT1 output circuit
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Setup Connections

3.3.7 Digital I/O (X7)

Figure 3-26 Digital I/O connector X7
X7
Head A
Prefab
Cable
Head B
Signal Description
Pin Color Pin
1 white 1 DigIN1 Digital input 1
2 brown 2 DigIN2 Digital input 2
3 green 3 DigIN3 Digital input 3
4 yellow 4 DigIN4 Digital input 4
5 grey 5 DigOUT1 Digital output 1
6 pink 6 DigOUT2 Digital output 2
7 blue 7 GND Ground
V
8red8
Auxiliary output voltage (+5 VDC; IL 150 mA)
Aux
Table 3-23 Digital I/O connector X7 – Pin assignment
Signal Cable 8core (520853)
Cross-section
8 x 0.14 mm
2
, grey
Length 3 m
Plug Molex CLIK-Mate, single row, 8 poles (502578-0800)
Head A
Contacts Molex CLIK-Mate crimp terminals (502579)
Head B
Wire end sleeves 0.14 mm
2
Table 3-24 Signal Cable 8core
Continued on next page.
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Digital inputs 1…4 (Logic level setting)
Input voltage 0…30 VDC
Max. input voltage ±30 VDC
Logic 0 <0.8 V
Logic 1 >2.0 V
Input current at logic 1 250 µA @ 5 VDC
Switching delay <300 μs @ 5 VDC
Figure 3-27 DigIN1 circuit (analogously valid for DigIN2…4) – Logic level setting
Setup
Connections
Digital inputs 1…4 (PLC level setting)
Input voltage 0…30 VDC
Max. input voltage ±30 VDC
Logic 0 <5.5 V
Logic 1 >9 V
Input current at logic 1
>2 mA @ 9 VDC typically 3.5 mA @ 24 VDC
Switching delay <300 μs @ 24 VDC
Figure 3-28 DigIN1 circuit (analogously valid for DigIN2…4) – PLC level setting
Continued on next page.
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Setup Connections
Digital outputs 1…2
Circuit
Open drain (internal pull-up resistor 2k2 and diode to +5.45 VDC
Figure 3-29 DigOUT1 circuit (analogously valid for DigOUT2)
Continued on next page.
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WIRING EXAMPLES
DigOUT “sinks”
Max. input voltage +36 VDC
Max. load current 500 mA
Max. voltage drop 0.5 V @ 500 mA
Max. load inductance 100 mH @ 24 VDC; 500 mA
Setup
Connections
Figure 3-30 DigOUT1 “sinks” (analogously valid for DigOUT2)
DigOUT “source”
U
Output voltage
Max. load current
= 5.45 V 0.75 V (I
Out
I
2 mA
Load
Figure 3-31 DigOUT1 “source” (analogously valid for DigOUT2)
x 2200 Ω)
Load
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Setup Connections

3.3.8 Analog I/O (X8)

Figure 3-32 Analog I/O connector X8
X8
Head A
Prefab
Cable
Head B
Signal Description
Pin Color Pin
1 white 1 AnIN1+ Analog input 1, positive signal
2 brown 2 AnIN1 Analog input 1, negative signal
3 green 3 AnIN2+ Analog input 2, positive signal
4 yellow 4 AnIN2 Analog input 2, negative signal
5 grey 5 AnOUT1 Analog output 1
6 pink 6 AnOUT2 Analog output 2
7 blue 7 GND Ground
Table 3-25 Analog I/O connector X8 – Pin assignment
Signal Cable 7core (520854)
Cross-section
7 x 0.14 mm
2
, grey
Length 3 m
Plug Molex CLIK-Mate, single row, 7 poles (502578-0700)
Head A
Contacts Molex CLIK-Mate crimp terminals (502579)
Head B
Wire end sleeves 0.14 mm
2
Table 3-26 Signal Cable 7core
Continued on next page.
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Analog inputs 1…2
Input voltage ±10 VDC (differential)
Max. input voltage ±24 VDC
Common mode voltage 5…+10 VDC (referenced to GND)
Input resistance
80 kΩ (differential) 65 kΩ (referenced to GND)
A/D converter 12-bit
Resolution 5.64 mV
Bandwidth 10 kHz
Setup
Connections
Figure 3-33 AnIN1 circuit (analogously valid for AnIN2)
Analog outputs 1…2
Output voltage ±4 VDC
D/A converter 12-bit
Resolution 2.42 mV
Refresh rate 2.5 kHz
Analog bandwidth of output amplifier 25 kHz
300 nF
Max. capacitive load
Note: The increase rate is limited in proportion to the capacitive load (e.g. 5 V/ms @ 300 nF)
Max. output current limit 1 mA
Figure 3-34 AnOUT1 circuit (analogously valid for AnOUT2)
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Setup Connections

3.3.9 STO (X9)

The STO (Safe Torque Off) function can be utilized to bring the drive to a torque-free, safe condition via two independent inputs. The drive output power stage is switched off if either one of the inputs is not powered. For in-depth details on the STO functionality separate document «EPOS4 Application Notes».
Figure 3-35 STO connector X9
Activation of power stage
In order to activate the power stage, either both STO inputs must be powered or the «STO Idle Connec­tor» (Table 3-28) must be plugged.
X9
Head A
Prefab
Cable
Head B
Signal Description
Pin Color Pin
1 white 1 STO-IN1+ Safe Torque Off input 1, positive signal
2 brown 2 STO-IN1 Safe Torque Off input 1, negative signal
3 green 3 STO-IN2+ Safe Torque Off input 2, positive signal
4 yellow 4 STO-IN2 Safe Torque Off input 2, negative signal
5 grey 5 STO-OUT+ Safe Torque Off output, positive signal
6pink6STO-OUT Safe Torque Off output, negative signal
7 blue 7 GND Ground
Activation voltage for STO inputs (+5 VDC)
V
8red8
STO
Note: Do not use this voltage for any other purpose
Table 3-27 STO connector X9 – Pin assignment
For the matching prefab cable assembly Table 3-24 on page 3-38.
STO Idle Connector (520860)
—included with every delivery—
Plug Molex CLIK-Mate, single row, 8 poles (502578-0800) with cable bridges
Table 3-28 STO Idle Connector
Continued on next page.
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Safe Torque Off inputs 1…2
Circuit type Optically isolated input
Input voltage 0…+30 VDC
Max. input voltage ±30 VDC
Logic 0 <1.0 VDC
Logic 1 >4.5 VDC
Input current at logic 1
>2 mA @ 5 VDC typically 3.2 mA @ 24 VDC
Reaction time <25 ms
Figure 3-36 STO-IN1 circuit (analogously valid for STO-IN2)
Setup
Connections
Safe Torque Off output
Circuit type
Optically isolated output with self-resetting short­circuit protection
Max. input voltage ±30 VDC
Max. load current 15 mA
Leakage current <10 μA @ +30 VDC
Max. voltage drop
1.3 V @ 2 mA
2.5 V @ 15 mA
Figure 3-37 STO-OUT circuit
STO Logic State
STO-IN1 STO-IN2 STO-OUT Power Stage
0 0 open inactive
1 0 closed inactive
0 1 closed inactive
1 1 closed active
Table 3-29 STO logic state
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Setup Connections

3.3.10 RS232 (X10)

Figure 3-38 RS232 connector X10
X10
Head A
Prefab
Cable
Head B
Signal Description
Pin Color Pin
1 white 3 EPOS_RxD EPOS RS232 receive
2 brown 5 GND Ground
3 green 2 EPOS_TxD EPOS RS232 transmit
4 yellow 5 GND Ground
5 Shield Housing Shield Cable shield
Table 3-30 RS232 connector X10 – Pin assignment
RS232-COM Cable (520856)
Cross-section
2 x 2 x 0.14 mm
2
, twisted pair, shielded
Length 3 m
Plug Molex CLIK-Mate, single row, 5 poles (502578-0500)
Head A
Contacts Molex CLIK-Mate crimp terminals (502579)
Head B Female D-Sub connector DIN 41652, 9 poles, with mounting screws
Table 3-31 RS232-COM Cable
RS232 Interface
Max. input voltage ±30 VDC
Output voltage typically ±9 V @ 3 k to GND
Max. bit rate 115’200 bit/s
RS232 transceiver EIA RS232 standard
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Setup
Connections

3.3.11 CAN 1 (X11) & CAN 2 (X12)

The EPOS4 is specially designed being commanded and controlled via a Controller Area Network (CAN), a highly efficient data bus very common in all fields of automation and motion control. It is prefer­ably used as a slave node in the CANopen network.
For the CAN configuration “DIP Switch Configuration (SW1)” on page 3-54.
Figure 3-39 CAN 1 connector X11 and CAN 2 connector X12
X11
X12
Head A
Prefab
Cable
Head B
Signal Description
Pin Color Pin
1 white 7 CAN high CAN high bus line
2 brown 2 CAN low CAN low bus line
3 green 3 GND Ground
4 Shield 5 Shield Cable shield
Table 3-32 CAN 1 connector X11/CAN 2 connector X12 – Pin assignment
CAN-COM Cable (520857)
Cross-section
2 x 2 x 0.14 mm
2
, twisted pair, shielded
Length 3 m
Plug Molex CLIK-Mate, single row, 4 poles (502578-0400)
Head A
Contacts Molex CLIK-Mate crimp terminals (502579)
Head B Female D-Sub connector DIN 41652, 9 poles, with mounting screws
Table 3-33 CAN-COM Cable
Continued on next page.
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Setup Connections
CAN-CAN Cable (520858)
Cross-section
2 x 2 x 0.14 mm2, twisted pair, shielded
Length 3 m
Plug Molex CLIK-Mate, single row, 4 poles (502578-0400)
Head A
Contacts Molex CLIK-Mate crimp terminals (502579)
Plug Molex CLIK-Mate, single row, 4 poles (502578-0400)
Head B
Contacts Molex CLIK-Mate crimp terminals (502579)
Table 3-34 CAN-CAN Cable
CAN interface
Standard ISO 11898-2:2003
Max. bit rate 1 Mbit/s
Max. number of CAN nodes 127/31 (via software/hardware setting)
Protocol CiA 301 version 4.2.0
Identifier setting By DIP switch or software
Note
• Consider the CAN master’s maximal bit rate.
• The standard bit rate setting (factory setting) is 1 Mbit/s, automatic bit rate detection is set.
• Use 120
Ω
termination resistor at both ends of the CAN bus.
• For detailed CAN information separate document «EPOS4 Communication Guide».
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Setup
Connections

3.3.12 USB (X13)

Hot plugging the USB interface may cause hardware damage
If the USB interface is being hot-plugged (connecting while the power supply is on), the possibly high potential differences of the two power supplies of controller and PC/Notebook can lead to damaged hardware.
• Avoid potential differences between the power supply of controller and PC/Notebook or, if possible, balance them.
• Insert the USB connector first, then switch on the power supply of the controller.
Figure 3-40 USB connector X13
X13
Head A
PC’s USB
T erminal
Head B
Signal Description
Pin Pin
V
11
BUS
USB bus supply voltage input +5 VDC
2 2 USB_D USB Data (twisted pair with Data+)
3 3 USB_D+ USB Data+ (twisted pair with Data−)
4 ID not connected
5 4 GND USB ground
Table 3-35 USB connector X13 – Pin assignment
USB Type A - micro B Cable (403968)
Cross-section According to USB 2.0 / USB 3.0 specification
Length 1.5 m
Head A USB Type “micro B”, male
Head B USB Type “A”, male
Table 3-36 USB Type A - micro B Cable
USB Standard USB 2.0 / USB 3.0 (full speed)
Max. bus supply voltage +5.25 VDC
Max. DC data input voltage 0.5…+3.8 VDC
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USB
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Setup Connections

3.3.13 Extension NET IN (X14) & Extension NET OUT (X15)

The EPOS4 50/5 features two NET connectors for extension communication interfaces, such as Ether­CAT. One serves for NET input, the other for NET output. Both sockets are identical in respect to their external wiring.
Wrong plugging may cause hardware damage
Even though both NET sockets are prepared for identical external wiring, make sure to always connect them as follows.
• Use only standard Cat5 cables with RJ45 plug, such as maxon’s «Ethernet Cable» (422827).
• Use NET IN (X14) as «Input».
• Use NET OUT (X15) as «Output». For detailed information separate document «EPOS4 Communication Guide».
Figure 3-41 Extension NET IN & NET OUT connectors X14 & X15
X14 X15
Head A
Prefab
Cable
Head B
Signal Description
Pin Color Pin
1
white/
orange
1 TX+ Transmission Data+
2orange2TX Transmission Data
3
white/
green
3 RX+ Receive Data+
4 blue 4 not applicable
5
white/
blue
5 not applicable
6 green 6 RX Receive Data
7
white/ brown
7 not applicable
8 brown 8 not applicable
Table 3-37 Extension NET IN & NET OUT connectors X14 & X15 – Pin assignment
Continued on next page.
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Ethernet Cable (422827)
Cross-section Cat. 5e SF/UTP (ISO/IEC 11801), 1:1 patch cable, green
Length 2 m
Head A RJ45 (8P8CS) EIA/TIA-568B
Head B RJ45 (8P8CS) EIA/TIA-568B
Table 3-38 Ethernet Cable
Setup
Connections
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Setup Connections

3.3.14 Extension Signal (X16)

The connector provides direct access to the signal extension slot EXT2 (chapter “3.3.15 Extension Slots (EXT1 & EXT2)” on page 3-53) thus allowing the use of signal extension cards (such as for addi­tional absolute sensors or customized signal extensions). The pin assignment is directly related to the corresponding extension card.
Figure 3-42 Extension Signal connector X16
X16
Head A
Prefab
Cable
Head B
Signal Description
Pin Color Pin
1white1EXT-1
2 brown 2 EXT-2
3 green 3 EXT-3
4 yellow 4 EXT-4
5grey5EXT-5
6pink6EXT-6
Depending on signal extension card inserted in extension slot EXT2 (Ta bl e 3 -4 0)
7blue7EXT-7
8red8EXT-8
9black9EXT-9
10 violet 10 EXT-10
Table 3-39 Extension Signal connector X16 – Pin assignment
For the matching prefab cable assembly Table 3-22 on page 3-29.
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Setup
Connections

3.3.15 Extension Slots (EXT1 & EXT2)

The controller provides two extension slots (Figure 3-43) located underneath the plastic lid at the con­troller housing’s top face. They host optionally available extension cards (Table 3-40) and thereby expand the controller’s comprehensive motion control functionality even further.
EXT1 provides connectivity for a communication extension card, such as for EtherCAT.
With the optionally available «EPOS4 EtherCAT Card», the controller serves as slave in an EtherCAT network, provides access for EtherCAT master control (such as Beckhoff TwinCAT), and offers real-time operation in an Ethernet master/slave network. For further details sepa- rate document «EPOS4 Communication Guide».
EXT2 provides connectivity for advanced signal extension cards, such as for additional abso-
lute sensors or customized signal extensions. Using the respective optionally available EPOS4 cards, additional functions can be directly accessed via the connector “Extension Signal (X16)” on page 3-52.
Figure 3-43 Extension slots
An inserted extension card mechanically interlocks in both horizontal and vertical direction. To insert or remove an extension card, proceed as follows:
Hot plugging/hot swapping the extension slots may cause hardware damage
Switch off the controller’s power supply before removing or inserting an extension card.
I
NSERT
1) Make sure to switch off the controller’s power supply.
2) Make sure that the extension slots are clean and free of any foreign objects.
3) Carefully insert the extension card in the respective extension slot (either EXT1 or EXT2), keep right-angled, and press down firmly.
4) Mount the plastic lid, press it down firmly, and let the two latches snap into place.
EMOVE
R
1) Make sure to switch off the controller’s power supply.
2) Unlock the latches and remove the plastic lid, turn it over, and look for the molded catch in one of its corners.
3) Engage the catch into the extension card’s bore.
4) Pull both – the plastic lid together with the extension card – straight upward.
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Setup Connections
Extension Cards
Slot Description Part number
EXT1 EPOS4 EtherCAT Card available soon
EXT2
Table 3-40 Extension cards (optional)

3.3.16 DIP Switch Configuration (SW1)

Figure 3-44 DIP switch SW1
3.3.16.1 CAN ID (Node Address)
The CAN ID is set with DIP switches 1…5. The node address (1…31) may be coded using binary code.
Setting the CAN ID by DIP switch SW1
• By setting the DIP switch (1…5) address 0 (“OFF”), the CAN ID may be set by software (changing object “Node ID”, range 1…127).
• The CAN ID results in the summed values of DIP switch addresses 1 (“ON”).
• DIP switches 6…8 do not have any impact on the CAN ID.
Switch Binary Code Valence Setting
1
2
3
4
5
0
2
1
2
2
2
3
2
4
2
16
1
2
4
8
(factory setting)
Table 3-41 DIP switch SW1 – Binary code values
Continued on next page.
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Setup
Connections
The set CAN ID (node address) can be observed by adding the valence of all activated switches. Use the following table as a (non-concluding) guide:
Setting
1 2 3 4 5
00000–
1 00001
0 1 0002
001 004
1 0 1 005
0001 08
00001 16
1111131
0 = Switch “OFF” 1 = Switch “ON”
Switch
Node
Address
Table 3-42 DIP switch SW1 – Examples
3.3.16.2 CAN automatic Bit Rate Detection
Switch OFF ON
6
Automatic bit rate detection deactivated Automatic bit rate detection activated
Table 3-43 DIP switch SW1 – CAN automatic bit rate detection
3.3.16.3 CAN Bus Termination
Switch OFF ON
7
Without bus termination
Bus termination with 120
(factory setting)
Table 3-44 DIP switch SW1 – CAN bus termination
(factory setting)
Continued on next page.
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Setup Connections
3.3.16.4 Digital Input Level
For details chapter “3.3.7 Digital I/O (X7)” on page 3-38.
Switch OFF ON
8
Logic level
(factory setting)
Table 3-45 DIP switch SW1 – Digital input level

3.3.17 Spare Parts

Order
number
Description
520860 STO Idle Connector X9
Table 3-46 Spare parts list
PLC level
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3.4 Status Indicators

The EPOS4 features three sets of LED indicators to display the device condition.
A NET Status; the LEDs display communication RUN states and errors conditions B Device Status; the LEDs display the device’s operation status and error conditions C NET Port; the LED displays the NET link activity
For detailed information separate document «EPOS4 Firmware Specification».
Setup
Status Indicators
Figure 3-45 LEDs – Location

3.4.1 NET Status

The LEDs (Figure 3-45; A) display the actual status and possible errors of the EPOS4 in respect to
the NET network:
Green LED shows the RUN state
Red LED indicates errors
LED
Description
Green Red
OFF EPOS4 is in state INIT
Blink EPOS4 is in state PRE-OPERATIONAL
Single flash EPOS4 is in state SAFE-OPERATIONAL
ON EPOS4 is in state OPERATIONAL
OFF EPOS4 is in operating condition
Double flash
Single flash
An application watchdog timeout has occurred
Example: Timeout of Sync Manager Watchdog
EPOS4 has changed the COM state due to an internal error
Example: Change of state “Op” to “SafeOpError” due to Sync Error
General Configuration Error
—Blink
Example: State change commanded by master is not possible due to actual settings (register, object, hardware configuration)
Blink = continuous blinking (2.5 Hz) Flash = Flashing (0.2 s), followed by pause of 1 s
Table 3-47 NET Status LEDs
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Setup Status Indicators

3.4.2 Device Status

The LEDs (Figure 3-45; B) display the actual status and possible errors of the EPOS4:
Green LED shows the status
Red LED indicates errors
LED
Description
Green Red
Power stage is disabled. The EPOS4 is in status…
Slow OFF
• “Switch ON Disabled”
• “Ready to Switch ON”
• “Switched ON”
Power stage is enabled. The EPOS4 is in status…
ON OFF
• “Operation Enable”
• “Quick Stop Active”
OFF ON
ON ON
FAULT state. The EPOS4 is in status…
• “Fault”
Power stage is enabled. The EPOS4 is in temporary status…
• “Fault Reaction Active”
Flash ON No valid firmware or firmware download in progress
Flash = Flashing (0.9 s OFF/0.1 s ON) Slow = Slow blinking (1 Hz)
Table 3-48 Device Status LEDs

3.4.3 NET Port

The LED (Figure 3-45; C) displays the link activity of the NET port (applies for both ports, X14 “IN”
and X15 “OUT”):
Green LED indicates link activity
LED
Description
Green
OFF Port is closed
Flicker Port is open / activity is present
ON Port is open
Data rate is 100 MBit/s
Flicker = Continuous flickering (10 Hz)
Table 3-49 NET Port LED
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4 Wiring

Wiring
In this section you will find the wiring information for the setup you are using. You can either use the con­solidated wiring diagram (Figure 4-47) featuring the full scope of interconnectivity and pin assignment. Or you may wish to use the connection overviews for either DC motor or EC (BLDC) motor that will assist you in determining the wiring for your particular motor type and the appropriate feedback signals.
Figure 4-46 Interfaces – Designations and location
Signs and abbreviations used
The subsequent diagrams feature this signs and abbreviations:
• Items marked with an asterisk (*) will be available with an upcoming firmware release.
• «EC Motor» stands for brushless EC motor (BLDC).
Ground safety earth connection (optional).
C
ONTENTS
Possible Combinations to connect a Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60
DC Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60
EC (BLDC) Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-61
Main Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-62
Excerpts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63
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Wiring Possible Combinations to connect a Motor

4.1 Possible Combinations to connect a Motor

The following tables show feasible ways on how to connect the motor with its respective feedback sig­nals or possible combinations thereof. To find the wiring that best suits your setup, proceed as follows:
1) Decide on the type of motor you are using; either DC or EC (BLDC) motor.
2) Connect the power supply and the logic supply by following the links to the stated figure.
3) Check-out the listing for the combination that best suits your setup. Pick the wiring method #
and go to the respective table; for DC motor Table 4-50, for EC (BLDC) motor Table 4-51.
4) Pick the row with the corresponding wiring method # and follow the link (or links) to the stated figure(s) to find the relevant wiring information.

4.1.1 DC Motor

Power supply & optional logic supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Figure 4-48
Motor & feedback signals
Without sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method # DC1
Digital incremental encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method # DC2
Digital incremental encoder & Digital incremental encoder . . . . . . . . . . . . . . . . . . . . . . . . Method # DC3
Digital incremental encoder & Analog incremental encoder. . . . . . . . . . . . . . . . . . . . . . . . Method # DC4
Digital incremental encoder & SSI absolute encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method # DC5
Analog incremental encoder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method # DC6
SSI absolute encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method # DC7
Encoders
Method
#
DC1 4-49
DC2 4-49 / 4-52
DC3
DC4
DC5
DC6 * 4-49 / 4-56
DC7
Table 4-50 Possible combinations of feedback signals for DC motor
Digital
Incremental 1
X5 X6 X6 X6
* 4-49 / 4-53
* 4-49 / 4-54
4-49 / 4-55
Digital
Incremental 2
Analog
Incremental
SSI
Absolute
4-49 / 4-57
Figure(s)
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Wiring
Possible Combinations to connect a Motor

4.1.2 EC (BLDC) Motor

Power supply & optional logic supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 4-48
Motor & feedback signals
Hall sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method # EC1
Hall sensors & Digital incremental encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method # EC2
Hall sensors & Analog incremental encoder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method # EC3
Hall sensors & SSI absolute encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method # EC4
Hall sensors & Digital incremental encoder & Digital incremental encoder . . . . . . . . . . . . Method # EC5
Hall sensors & Digital incremental encoder & Analog incremental encoder . . . . . . . . . . . . Method # EC6
Hall sensors & Digital encoder & SSI absolute encoder. . . . . . . . . . . . . . . . . . . . . . . . . . . Method # EC7
Digital incremental encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method # EC8
Digital incremental encoder & Digital incremental encoder . . . . . . . . . . . . . . . . . . . . . . . . Method # EC9
Digital incremental encoder & Analog incremental encoder . . . . . . . . . . . . . . . . . . . . . . . Method # EC10
Digital incremental encoder & SSI absolute encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method # EC11
Analog incremental encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method # EC12
SSI absolute encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method # EC13
Method
#
Hall
sensors
Digital
Incremental 1
Incremental 2
Digital
Encoders
Incremental
Analog
SSI
Absolute
Figure(s)
X4 X5 X6 X6 X6
EC1
EC2
EC3
EC4
EC5
EC6
EC7
EC8
EC9
EC10
EC11
4-50 / 4-51
4-50 / 4-51 / 4-52
* 4-50 / 4-51 / 4-56
4-50 / 4-51 / 4-57
* 4-50 / 4-51 / 4-53
* 4-50 / 4-51 / 4-54
4-50 / 4-51 / 4-55
4-50 / 4-52
* 4-50 / 4-53
* 4-50 / 4-54
4-50 / 4-55
EC12 * 4-50 / 4-56
EC13
4-50 / 4-57
Table 4-51 Possible combinations of feedback signals for EC (BLDC) motor
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Wiring Main Wiring Diagram

4.2 Main Wiring Diagram

Figure 4-47 Main wiring diagram
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4.3 Excerpts

Wiring
Excerpts

4.3.1 Power & Logic Supply

Figure 4-48 Power & logic supply

4.3.2 DC Motor

Figure 4-49 DC motor

4.3.3 EC (BLDC) Motor

Figure 4-50 EC (BLDC) motor

4.3.4 Hall Sensors

Figure 4-51 Hall sensors
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Wiring Excerpts

4.3.5 Digital Incremental Encoder

Figure 4-52 Digital incremental encoder

4.3.6 Digital & Digital Incremental Encoder

Figure 4-53 Digital & Digital incremental encoder

4.3.7 Digital & Analog Incremental Encoder

Figure 4-54 Digital & Analog incremental encoder
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Edition: May 2017 EPOS4 50/5 Hardware Reference
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4.3.8 Digital Incremental & SSI Encoder

Figure 4-55 Digital incremental & SSI encoder

4.3.9 Analog Incremental Encoder

Wiring
Excerpts
Figure 4-56 Analog incremental encoder

4.3.10 SSI Encoder

Figure 4-57 SSI encoder
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© 2017 maxon motor. Subject to change without prior notice.
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Wiring Excerpts
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© 2017 maxon motor. Subject to change without prior notice.
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LIST OF FIGURES

Figure 1-1 Documentation structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Figure 2-2 Derating of output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Figure 2-3 Power dissipation and efficiency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Figure 2-4 Dimensional drawing [mm] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Figure 3-5 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Figure 3-6 Power supply connector X1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Figure 3-7 Logic supply connector X2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Figure 3-8 Motor connectors X3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Figure 3-9 Hall sensor connector X4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Figure 3-10 Hall sensor 1 input circuit (analogously valid for Hall sensors 2 & 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Figure 3-11 Encoder connector X5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Figure 3-12 Encoder input circuit Ch A “differential” (analogously valid for Ch B & Ch I) . . . . . . . . . . . . . . . . . . . . . . . . .26
Figure 3-13 Encoder input circuit Ch A “single-ended” (analogously valid for Ch B & Ch I) . . . . . . . . . . . . . . . . . . . . . . .27
Figure 3-14 Sensor connector X6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Figure 3-15 Digital incremental encoder input circuit Ch A “differential” (analogously valid for Ch B). . . . . . . . . . . . . . . .29
Figure 3-16 Digital incremental encoder input circuit Ch I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Figure 3-17 Digital incremental encoder input circuit Ch A “single-ended” (analogously valid for Ch B). . . . . . . . . . . . . .31
Figure 3-18 Digital incremental encoder input circuit Ch I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Figure 3-19 Analog incremental encoder input circuit Ch A “differential” (analogously valid for Ch B) . . . . . . . . . . . . . . .33
Figure 3-20 Analog incremental encoder input circuit Ch I (digital evaluation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Figure 3-21 SSI absolute encoder data input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Figure 3-22 SSI absolute encoder clock output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Figure 3-23 HsDigIN1 circuit “differential” (analogously valid for HsDigIN2…4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Figure 3-24 HsDigIN1 circuit “single-ended” (analogously valid for HsDigIN2…4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Figure 3-25 HsDigOUT1 output circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Figure 3-26 Digital I/O connector X7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Figure 3-27 DigIN1 circuit (analogously valid for DigIN2…4) – Logic level setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Figure 3-28 DigIN1 circuit (analogously valid for DigIN2…4) – PLC level setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Figure 3-29 DigOUT1 circuit (analogously valid for DigOUT2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Figure 3-30 DigOUT1 “sinks” (analogously valid for DigOUT2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Figure 3-31 DigOUT1 “source” (analogously valid for DigOUT2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Figure 3-32 Analog I/O connector X8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Figure 3-33 AnIN1 circuit (analogously valid for AnIN2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Figure 3-34 AnOUT1 circuit (analogously valid for AnOUT2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Figure 3-35 STO connector X9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Figure 3-36 STO-IN1 circuit (analogously valid for STO-IN2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Figure 3-37 STO-OUT circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Figure 3-38 RS232 connector X10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Figure 3-39 CAN 1 connector X11 and CAN 2 connector X12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Figure 3-40 USB connector X13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3-41 Extension NET IN & NET OUT connectors X14 & X15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Figure 3-42 Extension Signal connector X16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
. . . . . . . . . . . . . . . . . . .49
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Figure 3-43 Extension slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 3-44 DIP switch SW1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Figure 3-45 LEDs – Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Figure 4-46 Interfaces – Designations and location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Figure 4-47 Main wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Figure 4-48 Power & logic supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 4-49 DC motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Figure 4-50 EC (BLDC) motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Figure 4-51 Hall sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 4-52 Digital incremental encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Figure 4-53 Digital & Digital incremental encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Figure 4-54 Digital & Analog incremental encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Figure 4-55 Digital incremental & SSI encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Figure 4-56 Analog incremental encoder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Figure 4-57 SSI encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
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LIST OF TABLES

Table 1-1 Notation used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Table 1-2 Symbols and signs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Table 1-3 Brand names and trademark owners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Table 2-4 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Table 2-5 Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Table 2-6 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Table 3-7 Prefab maxon cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Table 3-8 EPOS4 Connector Set – Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Table 3-9 Recommended tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Table 3-10 Power supply connector X1 – Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Table 3-11 Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Table 3-12 Logic supply connector X2 – Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Table 3-13 Motor connector X3 – Pin assignment for maxon DC motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Table 3-14 Motor connector X3– Pin assignment for maxon EC motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Table 3-15 Motor Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Table 3-16 Hall sensor connector X4 – Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Table 3-17 Hall Sensor Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Table 3-18 Encoder connector X5 – Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Table 3-19 Encoder connector X5 – Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Table 3-20 Encoder Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Table 3-21 Sensor connector X6 – Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Table 3-22 Sensor Cable 5x2core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Table 3-23 Digital I/O connector X7 – Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Table 3-24 Signal Cable 8core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Table 3-25 Analog I/O connector X8 – Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Table 3-26 Signal Cable 7core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Table 3-27 STO connector X9 – Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Table 3-28 STO Idle Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Table 3-29 STO logic state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Table 3-30 RS232 connector X10 – Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Table 3-31 RS232-COM Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Table 3-32 CAN 1 connector X11/CAN 2 connector X12 – Pin assignment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Table 3-33 CAN-COM Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Table 3-34 CAN-CAN Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Table 3-35 USB connector X13 – Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Table 3-36 USB Type A - micro B Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Table 3-37 Extension NET IN & NET OUT connectors X14 & X15 – Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Table 3-38 Ethernet Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Table 3-39 Extension Signal connector X16 – Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Table 3-40 Extension cards (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Table 3-41 DIP switch SW1 – Binary code values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Table 3-42 DIP switch SW1 – Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
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Table 3-43 DIP switch SW1 – CAN automatic bit rate detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Table 3-44 DIP switch SW1 – CAN bus termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Table 3-45 DIP switch SW1 – Digital input level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Table 3-46 Spare parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Table 3-47 NET Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Table 3-48 Device Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Table 3-49 NET Port LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Table 4-50 Possible combinations of feedback signals for DC motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Table 4-51 Possible combinations of feedback signals for EC (BLDC) motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
maxon motor control
Z-70 Document ID: rel6852 EPOS4 Positioning Controller
Edition: May 2017 EPOS4 50/5 Hardware Reference
© 2017 maxon motor. Subject to change without prior notice.
Page 71

INDEX

A
alerts 6
analog incremental encoder (differential) analog inputs analog outputs applicable EU directive applicable regulations
43
43
15
8
B
Beckhoff TwinCAT 53
BiSS encoder
wiring
65
bit rate detection bit rate, default
55
48
C
cables (prefab)
CAN-CAN Cable
CAN-COM Cable 47 Encoder Cable 26
Ethernet Cable
Hall Sensor Cable 23 Motor Cable 22
Power Cable
RS232-COM Cable 46 Sensor Cable 5x2core 29
Signal Cable 7core
Signal Cable 8core 38 STO Idle Connector 44
USB Type A - micro B Cable CAN bus termination CAN ID CAN interface connectors
country-specific regulations
54
EXT1
EXT2
19
X1
X2
21
X3 22
23
X4
X5
25
X6 28
38
X7
X8
42
X9 44
46
X10
X11 47
X12 47
49
X13
X14
50
X15 50
52
X16
53 53
48
51
19
42
49
48, 55
48
8
33
D
device condition, display of 57
digital high-speed inputs (differential) digital high-speed inputs (single-ended) digital high-speed output digital incremental encoder (differential) digital incremental encoder (single-ended) digital outputs DIP switch SW1
40
54
37
36
36 29
31
E
encoders
absolute 35
differential
incremental 29 serial 35
single-ended
EnDat encoder
wiring EPOS4 Connector Set EPOS4 EtherCAT Card ESD
8
EtherCAT
network
option card EU directive, applicable
26
27
65
17
54
53
54
15
H
Hall sensor 24
how to
calculate the required supply voltage
connect extension signals
interpret icons (and signs) used in this document
unplug an extension card
52
53
20
I
incorporation into surrounding system 15
informatory signs inputs
analog
43
high-speed digital
STO
45
interfaces
CAN
47
location and designation
RS232 46
USB 49
6
36
59
L
LEDs, interpretation of 57
6
maxon motor control EPOS4 Positioning Controller Document ID: rel6852 EPOS4 50/5 Hardware Reference Edition: May 2017
© 2017 maxon motor. Subject to change without prior notice.
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Page 72
M
mandatory action signs 6
motor types, supported
7
R
regulations, applicable 8
Requirements of power supply
21
N
Node Address 54
notations used
6
O
operating license 15
outputs
analog
43
digital 40
high-speed digital
STO 45
37
P
part numbers
275829
275851 22 275878 23
275934
403968 49 422827 51
520852
520853 38 520854 42
520856
520857 47 520858 48
520859
520860 44 546047 9
performance data power supply requirements precautions prerequisites prior installation prohibitive signs protective measures (ESD) purpose
of the device 7
of the document
19
26
29
46
17
9
21
8
6
8
5
15
S
safety alerts 6
safety first! signs used SSI encoder
specification
wiring 65
standards, fulfilled status LEDs supply voltage, required
SW1 54
symbols used
8
6
35
14
57
20
6
T
technical data 9
termination (CAN bus) TwinCAT
53
48, 55
U
USB port 49
W
wiring examples
analog incremental encoder 65 DC motor 63
digital & analog incremental encoder
digital & digital incremental encoder 64 digital incremental & SSI encoder 65
digital incremental encoder
DigOUT 41
EC (BLDC) motor Hall sensors power & logic supply SSI encoder
63
63 65
64
63
64
maxon motor control
Z-72 Document ID: rel6852 EPOS4 Positioning Controller
Edition: May 2017 EPOS4 50/5 Hardware Reference
© 2017 maxon motor. Subject to change without prior notice.
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maxon motor control EPOS4 Positioning Controller Document ID: rel6852 EPOS4 50/5 Hardware Reference Edition: May 2017
© 2017 maxon motor. Subject to change without prior notice.
Z-73
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EtherCAT® is a registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany
© 2017 maxon motor. All rights reserved.
The present document – including all parts thereof – is protected by copyright. Any use (including reproduction, translation, microfilming, and other means of electronic data processing) beyond the narrow restrictions of the copyright law without the prior approval of maxon motor ag, is not permitted and subject to prosecution under the applicable law.
maxon motor ag
Brünigstrasse 220 P.O.Box 263 CH-6072 Sachseln Switzerland
Phone +41 41 666 15 00 Fax +41 41 666 16 50
www.maxonmotor.com
maxon motor control
Z-74 Document ID: rel6852 EPOS4 Positioning Controller
Edition: May 2017 EPOS4 50/5 Hardware Reference
© 2017 maxon motor. Subject to change without prior notice.
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