# SMB TECHNICS

> SMB TECHNICS supplies EtherCAT and CANopen servo drives, AC servo motors,
> motion controllers (PLC), operator panels (HMI) and industrial network
> components, building one motion control system from controller to drive,
> motor and interface. It is part of A GROUP within AKIM METAL and a member of
> the EtherCAT Technology Group.

This file is for AI agents. The human entry point is https://smb-hkt.com/

- Field: motion control, servo drives, servo motors, PLC, HMI, industrial networks
- Product families: 10, series: 40, order codes: 292
- Technical documents: 72, at https://smb-hkt.com/downloads
- Selection guide (application to product): https://smb-hkt.com/selection-guide
- Sizing tool: https://smb-hkt.com/sizer
- Contact: +90 216 593 19 90 · info@smbtechnics.com · Tuzla, İstanbul, Türkiye
- Full technical version: https://smb-hkt.com/llms-full.txt

No prices are published; ask for a quotation. The OEM manufacturer of a
product is deliberately not published.


## Tools and pages

- [Home](https://smb-hkt.com/en): SMB TECHNICS and the motion control platform.
- [Products](https://smb-hkt.com/en/products): Nine product families, their series and order codes.
- [System view](https://smb-hkt.com/en/system): How controller, drive, motor and interface connect.
- [Selection guide](https://smb-hkt.com/en/selection-guide): From an application to a compatible set of products.
- [Sizing](https://smb-hkt.com/en/sizer): Servo selection by torque, speed and voltage.
- [Industries](https://smb-hkt.com/en/industries): Which components are used in which industry.
- [Technologies](https://smb-hkt.com/en/technologies): EtherCAT, CANopen and the other networks.
- [Engineering guides](https://smb-hkt.com/en/guides): Calculation and selection methods, with sources.
- [Document centre](https://smb-hkt.com/en/downloads): Datasheets and manuals.
- [News](https://smb-hkt.com/en/news): Announcements and product news.
- [Frequently asked questions](https://smb-hkt.com/en/faq): Engineering knowledge base (EtherCAT, CANopen, CODESYS, pulse/direction, analog, alarms) and catalogue questions.
- [Contact](https://smb-hkt.com/en/contact): Quotations and technical support.

## Product families

- [Servo Drives](https://smb-hkt.com/en/products/servo-drives): 
- [Servo Motors](https://smb-hkt.com/en/products/servo-motors): 
- [PLC & Controllers](https://smb-hkt.com/en/products/plc): 
- [HMI & Panel PC](https://smb-hkt.com/en/products/hmi): 
- [Cables](https://smb-hkt.com/en/products/cables): 
- [Connectors](https://smb-hkt.com/en/products/connectors): 
- [EMI & Power Protection](https://smb-hkt.com/en/products/emi-power): 
- [Sensors](https://smb-hkt.com/en/products/sensors): 
- [CNC Lathes](https://smb-hkt.com/en/products/cnc-lathes): SMB CNC lathes are built at Akım Metal's Tuzla/İstanbul plant on more than 50 years of machining experience; single- and twin-turret, C-axis and Y-axis configurations share one machine family. The R&D Centre founded in 2011 was named the best R&D Centre of the Machinery and Equipment sector in the Ministry's 2015 evaluation; production runs under ISO 9001, ISO/TS 16949 and ISO 14001 certified processes, with US and EU offices for global support.
- [Automation](https://smb-hkt.com/en/products/automation): The automation family brings together the elements AKIM METAL designs for fixtures and machine automation: two- and three-finger grippers with T-slot guidance, Ball-Lok, collet and hydraulic chucks, pneumatic and hydraulic clamps and vises, twelve-station rotary tables, HSK-A50 and ER16 machining units, a servo press and a Cartesian injection robot for 80–120 ton machines. Moving axes run on SMB servo motors and drives; each product's bilingual product sheet can be downloaded from its page.

## Series

- [SD24-LP Series](https://smb-hkt.com/en/products/servo-drives/sd24-lp)
- [SD-LP Series](https://smb-hkt.com/en/products/servo-drives/sd-lp)
- [SDU3 Series](https://smb-hkt.com/en/products/servo-drives/sdu3)
- [SDE2 / SD2E2 Series](https://smb-hkt.com/en/products/servo-drives/sde)
- [SDE3 Series](https://smb-hkt.com/en/products/servo-drives/sde3)
- [SM06 Flange Family](https://smb-hkt.com/en/products/servo-motors/sm06)
- [SM08 Flange Family](https://smb-hkt.com/en/products/servo-motors/sm08)
- [SM10 Flange Family](https://smb-hkt.com/en/products/servo-motors/sm10)
- [SM13 Flange Family](https://smb-hkt.com/en/products/servo-motors/sm13)
- [SMR Series](https://smb-hkt.com/en/products/servo-motors/smr)
- [SML Series](https://smb-hkt.com/en/products/servo-motors/sml)
- [MAT-LC CodeSys CPU](https://smb-hkt.com/en/products/plc/lc-cpu)
- [MAT-LC I/O Modules](https://smb-hkt.com/en/products/plc/lc-io)
- [MAT-LC System Modules](https://smb-hkt.com/en/products/plc/lc-system)
- [Panel PC CNC Controller](https://smb-hkt.com/en/products/plc/pc-cnc)
- [HMI-R9 Series](https://smb-hkt.com/en/products/hmi/hmi-r9)
- [QT Teach Pendant](https://smb-hkt.com/en/products/hmi/qt-pendant)
- [VO Panel PC](https://smb-hkt.com/en/products/hmi/vo-pc)
- [Power / Motor Cables](https://smb-hkt.com/en/products/cables/cable-power)
- [Encoder Cables](https://smb-hkt.com/en/products/cables/cable-encoder)
- [Communication / USB Cables](https://smb-hkt.com/en/products/cables/cable-comm)
- [SMKP Power Connectors](https://smb-hkt.com/en/products/connectors/conn-power)
- [SMKE Encoder Connectors](https://smb-hkt.com/en/products/connectors/conn-encoder)
- [SDK Drive Connector Kits](https://smb-hkt.com/en/products/connectors/conn-drive)
- [EMI Filters](https://smb-hkt.com/en/products/emi-power/emi-filter)
- [Braking Resistors](https://smb-hkt.com/en/products/emi-power/brake-resistor)
- [Line Reactors / Misc](https://smb-hkt.com/en/products/emi-power/line-reactor)
- [Photoelectric Sensors](https://smb-hkt.com/en/products/sensors/sensor-photo)
- [Inductive Sensors](https://smb-hkt.com/en/products/sensors/sensor-inductive)
- [Cylinder Sensors](https://smb-hkt.com/en/products/sensors/sensor-cylinder)
- [260 Series](https://smb-hkt.com/en/products/cnc-lathes/cnc-260)
- [550 Series](https://smb-hkt.com/en/products/cnc-lathes/cnc-550)
- [850 Series](https://smb-hkt.com/en/products/cnc-lathes/cnc-850)
- [Design Series](https://smb-hkt.com/en/products/cnc-lathes/cnc-design)
- [Machining Units](https://smb-hkt.com/en/products/automation/auto-machining-units)
- [Servo Press & Robot Systems](https://smb-hkt.com/en/products/automation/auto-systems)
- [Universal Grippers](https://smb-hkt.com/en/products/automation/auto-grippers)
- [Chucks](https://smb-hkt.com/en/products/automation/auto-chucks)
- [Clamps & Vises](https://smb-hkt.com/en/products/automation/auto-clamps)
- [Rotary Tables](https://smb-hkt.com/en/products/automation/auto-rotary-tables)

## Industries

- [Machine Tools](https://smb-hkt.com/en/industries/machine-tools): Synchronised multi-axis control for contour accuracy at cutting speed.
- [Packaging](https://smb-hkt.com/en/industries/packaging): Keep stations phase-locked electronically instead of by a line shaft.
- [Robotics](https://smb-hkt.com/en/industries/robotics): Precision and compactness when the motion must fit inside a moving arm.
- [Textile](https://smb-hkt.com/en/industries/textile): Hold tension, feed and take-up in sync as line speed changes.
- [Aerospace & Mission-Critical Systems](https://smb-hkt.com/en/industries/aerospace-critical-systems): Deterministic timing, rugged connectivity and a certified safe state.
- [Plastics & Injection Molding](https://smb-hkt.com/en/industries/plastics): Closed-loop pressure and position profiles for repeatable part quality.
- [Metal Forming & Press](https://smb-hkt.com/en/industries/metal-forming): Programmable stroke profiles, high peak torque and a safe stop.
- [Intralogistics & Material Handling](https://smb-hkt.com/en/industries/intralogistics): Coordinated conveyor, transfer and storage motion in continuous duty.
- [Printing & Converting](https://smb-hkt.com/en/industries/printing): Register accuracy per unit and stable web tension.
- [Food & Beverage](https://smb-hkt.com/en/industries/food-beverage): Hygienic design, accurate dosing and high-cycle reliability.
- [Woodworking & CNC Routers](https://smb-hkt.com/en/industries/woodworking): A gantry that stays in sync at cutting speed, for fast, clean cuts.
- [Laser & Plasma Cutting](https://smb-hkt.com/en/industries/laser-cutting): Contours that hold their speed at the corners, on a noise-proof system.
- [Mobile Robots (AGV / AMR)](https://smb-hkt.com/en/industries/mobile-robotics): Quiet, efficient low-voltage traction running from a battery.
- [Battery & Energy Equipment Manufacturing](https://smb-hkt.com/en/industries/battery-manufacturing): Synchronised lines that wind and stack thin foil at constant tension.
- [Electronics Assembly](https://smb-hkt.com/en/industries/electronics-assembly): Millisecond settling on short, frequent, fast moves.
- [Automotive & Assembly Lines](https://smb-hkt.com/en/industries/automotive): Servo pressing, screwdriving and transfer; every part measured and recorded.
- [Medical & Laboratory Automation](https://smb-hkt.com/en/industries/medical-laboratory): Small, quiet, smooth motion from a compact low-voltage drive.
- [Stone, Marble & Glass Processing](https://smb-hkt.com/en/industries/stone-glass): Power and endurance for heavy bridges, long strokes and wet floors.
- [Pan-Tilt and Gimbal Systems](https://smb-hkt.com/en/industries/pan-tilt-gimbal): Smooth, precise pointing for cameras, sensors and optical payloads.
- [Land Vehicles and On-Vehicle Systems](https://smb-hkt.com/en/industries/land-vehicles): Electric actuation for turrets, ramps, hatches and actuators.
- [Antenna and Satellite Positioning](https://smb-hkt.com/en/industries/antenna-positioning): Precise azimuth and elevation tracking against wind load.
- [Motion Simulators and Platforms](https://smb-hkt.com/en/industries/motion-simulators): Synchronised, dynamic axes on six-degree-of-freedom platforms.
- [Test Benches and Measurement Systems](https://smb-hkt.com/en/industries/test-benches): Servo axes that apply load, replay profiles and record the result.
- [Solar Trackers](https://smb-hkt.com/en/industries/solar-trackers): Slow, strong, reliable tracking all day; a safe position in a storm.
- [Cranes and Hoists](https://smb-hkt.com/en/industries/cranes-hoists): Safe holding on vertical loads, precise position and recovered energy.
- [Welding Automation](https://smb-hkt.com/en/industries/welding-automation): Synchronised motion for positioners, torch axes and welding lines.
- [Press Brakes and Bending Machines](https://smb-hkt.com/en/industries/press-brake): Fast, precise positioning on the backgauge axes.
- [Palletizing and Depalletizing](https://smb-hkt.com/en/industries/palletizing): Fast, orderly stacking with gantry and robot axes.
- [Pharma and Cosmetics Packaging](https://smb-hkt.com/en/industries/pharma-packaging): Hygienic, traceable motion for blistering, cartoning and filling.
- [Agriculture and Food Processing Machines](https://smb-hkt.com/en/industries/agriculture): Durable motion for seeding, grading and feeding systems.
- [Cartesian Robots and Gantry Systems](https://smb-hkt.com/en/industries/cartesian-robots): Fast, repeatable pick-and-place and loading on X, Y and Z axes.
- [Recycling Machines](https://smb-hkt.com/en/industries/recycling): Rugged, efficient drives for shredders, crushers, sorting and baling lines.
- [Panel Sizing and Beam Saws](https://smb-hkt.com/en/industries/panel-sizing): Fast, square, repeatable cutting of panel stacks.

## Technologies

- [](https://smb-hkt.com/en/technologies/ethercat): 
- [](https://smb-hkt.com/en/technologies/canopen): 
- [](https://smb-hkt.com/en/technologies/modbus): 
- [](https://smb-hkt.com/en/technologies/safety-sto): 
- [](https://smb-hkt.com/en/technologies/plcopen): 

## Engineering guides

- [Servo drive selection](https://smb-hkt.com/en/guides/servo-drive-selection): A practical checklist from torque, speed, supply, feedback, communication, braking and safety requirements to a suitable servo drive.
- [Servo motor sizing](https://smb-hkt.com/en/guides/servo-motor-sizing): A preliminary sizing method from the motion profile to peak torque, RMS torque, maximum speed and reflected-inertia checks.
- [EtherCAT vs CANopen](https://smb-hkt.com/en/guides/ethercat-vs-canopen): A decision guide comparing cycle time, synchronisation, topology, axis count, CiA 402 and commissioning requirements.
- [EtherCAT commissioning in CODESYS](https://smb-hkt.com/en/guides/codesys-ethercat-commissioning): From the ESI file to the first move: master, task cycle, Distributed Clocks, SoftMotion axis, scaling and the most common faults.
- [Cabling and EMC](https://smb-hkt.com/en/guides/servo-cabling-emc): Separating power from signal, 360° shield bonding, grounding, EtherCAT cabling, moving cables and filters: the source of most unexplained faults.
- [CANopen network design](https://smb-hkt.com/en/guides/canopen-network-design): Topology, length by bit rate, 120 Ω termination and the 60 Ω check, node ID, NMT, PDO/SDO and the CiA 402 state machine.

## Engineering knowledge base: commissioning and troubleshooting


### [EtherCAT servo systems: commissioning and troubleshooting](https://smb-hkt.com/en/faq/ethercat)

EtherCAT is a real-time Ethernet fieldbus that processes the frame on the fly at every node, and it is the standard choice for machines with many tightly synchronised axes. The answers below collect what is asked most in the field, from the ESI file and Distributed Clocks to a slave stuck in PRE-OP and working-counter errors.

- [When should I choose EtherCAT over CANopen or Modbus?](https://smb-hkt.com/en/faq/ethercat#q-ethercat-when-to-choose)
- [How do I add an EtherCAT drive to the master project, and what is the ESI file for?](https://smb-hkt.com/en/faq/ethercat#q-ethercat-esi-file)
- [What are Distributed Clocks (DC), and when should I enable them?](https://smb-hkt.com/en/faq/ethercat#q-ethercat-distributed-clocks)
- [Which EtherCAT cycle time should I use?](https://smb-hkt.com/en/faq/ethercat#q-ethercat-cycle-time)
- [An EtherCAT slave stays in PRE-OP or SAFE-OP and will not go to OP. Why?](https://smb-hkt.com/en/faq/ethercat#q-ethercat-stuck-preop)
- [I see working-counter errors and lost frames. Where do I start?](https://smb-hkt.com/en/faq/ethercat#q-ethercat-working-counter)

### [CANopen networks: installation, CiA 402 and debugging](https://smb-hkt.com/en/faq/canopen)

CANopen runs the CiA 301 communication profile over a CAN bus, with the CiA 402 device profile for drives. It is robust and widely understood at moderate axis counts; most problems in the field come from termination, bit rate and the axis state machine.

- [How does CANopen bit rate relate to bus length?](https://smb-hkt.com/en/faq/canopen#q-canopen-bitrate-length)
- [How do I terminate a CANopen bus, and how do I measure that it is right?](https://smb-hkt.com/en/faq/canopen#q-canopen-termination)
- [The CANopen drive communicates but the motor will not enable. What is missing?](https://smb-hkt.com/en/faq/canopen#q-canopen-drive-will-not-enable)
- [What is the difference between PDO and SDO, and which do I use for what?](https://smb-hkt.com/en/faq/canopen#q-canopen-pdo-sdo)
- [The CAN bus goes bus-off and shows error frames. What can cause it?](https://smb-hkt.com/en/faq/canopen#q-canopen-bus-off)

### [Modbus RTU: RS-485 wiring, addressing and timeouts](https://smb-hkt.com/en/faq/modbus)

Modbus RTU is a simple, register-based poll-and-answer protocol over RS-485. It is ideal for reading and writing parameters and for simple commands; it was not designed for synchronised motion.

- [How should I wire the RS-485 line for Modbus RTU?](https://smb-hkt.com/en/faq/modbus#q-modbus-rs485-wiring)
- [The Modbus value I read looks shifted by one address. Why?](https://smb-hkt.com/en/faq/modbus#q-modbus-register-offset)
- [The Modbus slave does not answer at all. What should I check?](https://smb-hkt.com/en/faq/modbus#q-modbus-no-answer)
- [Can I do synchronised multi-axis motion over Modbus RTU?](https://smb-hkt.com/en/faq/modbus#q-modbus-for-motion)

### [Pulse/direction servo control: electronic gear, wiring and lost pulses](https://smb-hkt.com/en/faq/pulse-direction)

In pulse/direction control every pulse tells the drive to move one position step and the direction signal tells it which way. It is a simple interface that works with every PLC and motion card, and with the right electronic gear ratio and noise-proof wiring it is precise and reliable.

- [What is pulse/direction control, and when is it the right choice?](https://smb-hkt.com/en/faq/pulse-direction#q-pulse-what-and-when)
- [What is the difference between pulse+direction, CW/CCW and A/B phase modes?](https://smb-hkt.com/en/faq/pulse-direction#q-pulse-modes)
- [How do I calculate the electronic gear ratio?](https://smb-hkt.com/en/faq/pulse-direction#q-pulse-electronic-gear)
- [Should I use line-driver (differential) or open-collector pulse outputs?](https://smb-hkt.com/en/faq/pulse-direction#q-pulse-line-driver-open-collector)
- [An axis driven by pulses slowly loses position. Why?](https://smb-hkt.com/en/faq/pulse-direction#q-pulse-lost-position)
- [The motor travels two or four times the distance, or turns the wrong way.](https://smb-hkt.com/en/faq/pulse-direction#q-pulse-double-distance)

### [Analog ±10 V speed and torque control: scaling, offset and noise](https://smb-hkt.com/en/faq/analog-control)

In analog control the upper controller gives the drive a speed or torque reference in the ±10 V range. It is still common in machine retrofits and in systems where an external controller closes the position loop; it succeeds or fails on scaling, zero offset and a clean ground.

- [What is analog speed/torque control, and when is it used?](https://smb-hkt.com/en/faq/analog-control#q-analog-what-and-when)
- [How do I scale the analog reference?](https://smb-hkt.com/en/faq/analog-control#q-analog-scaling)
- [At a 0 V command the motor slowly creeps. How do I fix it?](https://smb-hkt.com/en/faq/analog-control#q-analog-creep-at-zero)
- [If the position loop closes in an external controller, where does the encoder signal come from?](https://smb-hkt.com/en/faq/analog-control#q-analog-position-loop-outside)
- [Should I move from analog control to a fieldbus?](https://smb-hkt.com/en/faq/analog-control#q-analog-vs-fieldbus)

### [PLC and motion control with CODESYS: EtherCAT, SoftMotion and tasks](https://smb-hkt.com/en/faq/codesys)

CODESYS is a PLC programming environment for the IEC 61131-3 languages, and it brings the EtherCAT master, SoftMotion axes and visualisation together in one project. The MAT-LC CPU family and the HMI-R9 panels are CODESYS-based.

- [Which SMB products are programmed with CODESYS?](https://smb-hkt.com/en/faq/codesys#q-codesys-which-products)
- [How do I add an EtherCAT servo axis in CODESYS, step by step?](https://smb-hkt.com/en/faq/codesys#q-codesys-add-ethercat-axis)
- [MC_Power, MC_Home, MC_MoveAbsolute: which motion blocks should I start with?](https://smb-hkt.com/en/faq/codesys#q-codesys-plcopen-blocks)
- [In the CODESYS task configuration, which task should run at which cycle?](https://smb-hkt.com/en/faq/codesys#q-codesys-task-configuration)
- [CODESYS cannot find or connect to the controller. What should I do?](https://smb-hkt.com/en/faq/codesys#q-codesys-cannot-connect)
- [My variables reset when power is lost. RETAIN or PERSISTENT?](https://smb-hkt.com/en/faq/codesys#q-codesys-retain-persistent)

### [PLC selection, IEC 61131-3 languages and I/O wiring](https://smb-hkt.com/en/faq/plc)

The right PLC is chosen from the I/O count, the axis count, the cycle time and the communication it must carry. Most problems in the field, though, come from basics: PNP/NPN mismatches, retained data and scan-time overruns.

- [Which PLC should I choose for my machine?](https://smb-hkt.com/en/faq/plc#q-plc-sizing)
- [Which IEC 61131-3 language should I use: LD, ST, FBD or SFC?](https://smb-hkt.com/en/faq/plc#q-plc-languages)
- [What is the difference between PNP and NPN sensors, and how do I wire them to a PLC input?](https://smb-hkt.com/en/faq/plc#q-plc-pnp-npn)
- [Is a normal PLC input enough for an encoder or fast counting?](https://smb-hkt.com/en/faq/plc#q-plc-high-speed-inputs)
- [The PLC stops with a watchdog error. What causes it?](https://smb-hkt.com/en/faq/plc#q-plc-watchdog)

### [HMI and Panel PC: selection, PLC connection and screen design](https://smb-hkt.com/en/faq/hmi)

The operator panel is the face of the machine: the right touch technology, the right connection and a readable screen design directly reduce downtime and operator error.

- [Should I choose a resistive or a capacitive touch screen?](https://smb-hkt.com/en/faq/hmi#q-hmi-resistive-capacitive)
- [An HMI panel or a Panel PC?](https://smb-hkt.com/en/faq/hmi#q-hmi-or-panel-pc)
- [How do I design an HMI screen that operators do not get wrong?](https://smb-hkt.com/en/faq/hmi#q-hmi-screen-design)
- [How do I connect the HMI panel to the PLC?](https://smb-hkt.com/en/faq/hmi#q-hmi-plc-connection)

### [Commissioning a servo system: checklist, auto-tuning and homing](https://smb-hkt.com/en/faq/servo-commissioning)

Running a servo axis for the first time is a matter of sequence: wiring checks, motor and encoder match, direction and limits, then tuning and homing. A skipped step comes back later as vibration and position error.

- [In what order should I bring up a servo axis for the first time?](https://smb-hkt.com/en/faq/servo-commissioning#q-commissioning-checklist)
- [How is auto-tuning done, and why does the inertia ratio matter?](https://smb-hkt.com/en/faq/servo-commissioning#q-commissioning-auto-tuning)
- [How do I tune the gains by hand?](https://smb-hkt.com/en/faq/servo-commissioning#q-commissioning-manual-gains)
- [How do I choose a homing method?](https://smb-hkt.com/en/faq/servo-commissioning#q-commissioning-homing)
- [What is the difference between absolute and incremental encoders? What is BiSS?](https://smb-hkt.com/en/faq/servo-commissioning#q-commissioning-absolute-encoder)
- [How do I set brake timing on a motor with a brake (vertical axis)?](https://smb-hkt.com/en/faq/servo-commissioning#q-commissioning-brake)

### [Servo drive alarms: overcurrent, overvoltage, encoder and following error](https://smb-hkt.com/en/faq/troubleshooting)

A drive alarm is a consequence, not a cause. The answers below give the most common alarms with the physical reason behind them and the order in which to check. For the alarm code itself, always use the drive's own manual.

- [The drive trips on overcurrent as soon as it is enabled.](https://smb-hkt.com/en/faq/troubleshooting#q-alarm-overcurrent)
- [I get a DC-bus overvoltage alarm while decelerating.](https://smb-hkt.com/en/faq/troubleshooting#q-alarm-overvoltage-decel)
- [I get encoder communication errors, sometimes at random.](https://smb-hkt.com/en/faq/troubleshooting#q-alarm-encoder)
- [Why does a following-error (position deviation) alarm occur?](https://smb-hkt.com/en/faq/troubleshooting#q-alarm-following-error)
- [The motor vibrates or whines at standstill or while moving.](https://smb-hkt.com/en/faq/troubleshooting#q-alarm-vibration-noise)
- [The motor runs hot or gives an overload alarm.](https://smb-hkt.com/en/faq/troubleshooting#q-alarm-motor-overheat)
- [I get an undervoltage alarm while accelerating.](https://smb-hkt.com/en/faq/troubleshooting#q-alarm-undervoltage)

### [Servo cables, shielding, grounding and EMC](https://smb-hkt.com/en/faq/cables-emc)

A large share of unexplained faults in servo systems come from cabling and grounding. The right cable type, a 360° shield connection and separating power from signal prevent most noise problems before they start.

- [How should I route power and signal cables?](https://smb-hkt.com/en/faq/cables-emc#q-emc-separate-routing)
- [How should I ground the cable shield?](https://smb-hkt.com/en/faq/cables-emc#q-emc-shield-grounding)
- [Which cable should I use on moving axes?](https://smb-hkt.com/en/faq/cables-emc#q-emc-drag-chain)
- [What do an EMI filter and a line reactor do, and when do I need them?](https://smb-hkt.com/en/faq/cables-emc#q-emc-filter-reactor)
- [How long can the motor cable be?](https://smb-hkt.com/en/faq/cables-emc#q-emc-cable-length)

### [Ball screw, belt, rack and gearbox: matching the mechanics to the servo](https://smb-hkt.com/en/faq/machine-mechanics)

A servo motor is only as good as the mechanics it drives. The transmission type, the reduction ratio, the inertia match and the coupling decide both the motor size and the dynamics you can reach.

- [How do I choose between a ball screw, a belt and a rack and pinion?](https://smb-hkt.com/en/faq/machine-mechanics#q-mech-transmission-choice)
- [Should I use a gearbox, and how do I choose the ratio?](https://smb-hkt.com/en/faq/machine-mechanics#q-mech-gearbox-ratio)
- [Which coupling should I use between the motor and the shaft?](https://smb-hkt.com/en/faq/machine-mechanics#q-mech-coupling)
- [What do I need to watch when designing a vertical axis?](https://smb-hkt.com/en/faq/machine-mechanics#q-mech-vertical-axis)

### [Servo system architecture: voltage level, network, braking and safety](https://smb-hkt.com/en/faq/system-design)

A motion system is a handful of architecture decisions before it is a parts list: which voltage level, which network, where the regenerated energy goes, how the machine stops safely. These are the decisions that are most expensive to change later.

- [Low-voltage DC, 220 V AC or 380 V AC: which level should I choose?](https://smb-hkt.com/en/faq/system-design#q-system-voltage-level)
- [Which interface should I use between the controller and the drives?](https://smb-hkt.com/en/faq/system-design#q-system-network-choice)
- [How do I know whether I need a braking resistor?](https://smb-hkt.com/en/faq/system-design#q-system-braking-resistor)
- [What is STO, and can I use it instead of a contactor for the emergency stop?](https://smb-hkt.com/en/faq/system-design#q-system-sto)
- [What should I watch when mounting servo drives in the cabinet?](https://smb-hkt.com/en/faq/system-design#q-system-cabinet)

## Frequently asked questions


### Catalogue and prices

- **Why are there no prices in the catalogue?** This catalogue does not publish prices. Most of these products are configured to the application, and the right figure depends on the drive, motor and cable set chosen and on the quantity. You add the products you are interested in to a quote list instead, and send them in one go.
- **How do I ask for a quotation?** Collect as many products as you need with the "Add to Basket" button on each product page, then send the list from the contact form. The list fills the form in for you; you do not have to type the product codes.

### Choosing a product

- **Which drive and motor suit my application?** The selection guide lets you filter products by power, supply, feedback and communication. If you are not sure which of those belong together, the engineering guides walk through the same decision step by step.
- **Where do I start when choosing a CNC lathe?** The diameter and length of the part, and the bar capacity, are the first three measurements that decide the model. The turning sizer narrows the series down from those inputs.

### Documents and files

- **Where do I download manuals, datasheets and software?** From the document centre; each product page also lists the documents belonging to that product. When you are after one product's document, its own page is the shortest route.
- **Do you publish EtherCAT ESI and CANopen EDS files?** Our EtherCAT ESI files are published in the document centre and on the relevant product page. If the file for your product is not listed, write to us and we will send the version we hold. The Vendor ID under which we are registered for EtherCAT and CANopen is 0x00000B14; that is the identity we appear under in network configuration tools.

### Becoming a dealer

- **How do I become a dealer?** You send your application from the dealer application page. Once it has been reviewed, the dealer channel is opened on your account.
- **What does a dealer account give me?** A dealer account shows the catalogue at your own dealer prices, and lets you prepare and send order requests and follow your quotations, orders and invoices from one place.

### Account and personal data

- **Why do I need an account to send a request?** Requests come from a confirmed e-mail address, so that the reply can actually reach you and so the form cannot be used to send fake enquiries. Signing up happens once and collects the company and phone details the technical team needs in order to come back to you.
- **How is my personal data handled?** The KVKK disclosure text states which data is processed for which purpose, and what your rights are. You can ask for your data to be erased from your own account page.
- **Can I read the site in English?** Yes. The language button in the header switches the page between Turkish and English, and keeps you on the page you were reading.