1001 Pennsylvania Avenue, N.W., Washington, DC 20004-2595  p202 624-2500  f202 628-5116

Daniel Cannistra 

(202) 624-2902 

DCannistra@crowell.com 

Crowell & Moring LLP  www.crowell.com  Washington, DC  New York  San Francisco  Los Angeles  Orange County  London  Brussels

October 9, 2018 

VIA ELECTRONIC FILING PUBLIC VERSION 

Amb. Robert E. Lighthizer Docket No.: USTR-2018-0025 

United States Trade Representative 

600 17th Street NW 

Washington, DC 20508 

Re: Request to Exclude Certain Parts and Accessories for Use with Machinery and 

Factory Automation Components from Section 301 Tariffs 

Dear Ambassador Lighthizer, 

On behalf of Siemens Industry, Inc. (“Siemens”), we respectfully request the exclusion of certain 

parts and accessories for use with machinery and factory equipment from the Section 301 tariffs enacted 

against products from the People’s Republic of China (“China”).1

 The effects of the Section 301 tariffs 

will touch many of the factors cited by the USTR in its Federal Register Notice that must be considered 

when granting exclusion requests. These factors are noted below. 

1. Economic Impact of the 301 Tariffs on Machinery and Factory Automation Components 

The imposed 25% tariffs on these products will cause economic hardship. The products at issue 

represent over [X] of our annual cost of sales in the U.S. As the imposed tariffs decrease our 

competitiveness in the U.S. market, this will result in further market concentration for automation 

products in the U.S. As these products are core to the manufacturing process across all industries, 

customers in the U.S. will experience higher prices. Furthermore, investment in additional sales and 

business development resources across the U.S. will be channeled towards other countries that are not 

impacted by tariffs. 

The Section 301 tariffs on these products will further damage U.S. interests in maintaining costeffective municipal utilities and transportation services. The products on this tariff list are key 

components in many water/waste water, power and lighting, HVAC, and other utility applications across 

 

1 The submission contains business confidential information, indicated by brackets and also in 

Attachment 2, consisting of commercial and financial information of Siemens the disclosure of which is 

not authorized. We hereby certify that this information is business confidential and would not 

customarily be released to the public by Siemens. Based on the foregoing, we hereby request that the 

U.S. Trade Representative and Customs and Border Production exempt from public inspection and public 

disclosure all such business confidential information contained in this submission. A public version of 

this submission is being simultaneously filed with this submission.
Amb. Robert E. Lighthizer 

October 9, 2018 

Page 2 

Crowell & Moring LLP  www.crowell.com  Washington, DC  New York  San Francisco  Los Angeles  Orange County  London  Brussels

the U.S. It is known that throughout the U.S. public municipalities and county budgets are stretched thin. 

The additional 25% tariff will increase the cost to those customers for critical infrastructure projects. This 

is a direct loss of federal, state and local funds. Additionally, as we train our growing workforce many of 

these products are utilized by universities and community colleges around the country for technical 

training. The additional cost incurred as a result of the 25% tariff will be passed on to the customer, which 

will make the products less affordable and absorb more state and government funds. Ultimately, the 

tariffs will make it more difficult to offer technical training to students hoping to acquire a specific skill 

set. 

The Section 301 tariffs will also reduce the availability of these products in the U.S. market and 

will require Siemens to build whole new production facilities or reformat current production facilities that 

will take years to complete. Furthermore, to search for and qualify additional venders would only add 

more time to our already detailed, lengthy qualification process. The Siemens supplier on-boarding and 

qualification process is detailed and takes at least 12 months to complete. This process includes a request 

for quotation (RFQ) process, supplier audit, and mandatory supplier training. Switching manufacturing 

sources will also require more time for other processes such as certifying the new factory, re-tooling, 

transferring technology, setting up production lines, ordering parts, and training employees to work on the 

assembly line. 

The tariffs also put American manufacturers and construction companies at a further competitive 

disadvantage. American manufacturers use many of these products in their manufacturing processes 

which will certainly incur additional costs. These tariffs put these American manufacturing operations at 

a competitive disadvantage compared to foreign competitors because those competitors will still be able 

to source these products without the additional 25% tariff. This could cause American manufactures to 

move more production outside of the United States where these products will still be available at low 

costs. 

The machinery and factory automation components referenced below are key components in many 

industrial machines and process applications across the U.S. Much of this machinery is also built for export which 

directly competes with other countries for the same business. These tariffs would increase the costs to the U.S. 

manufacturer for these products which in turn would make their finished product more expensive and less 

competitive for export thereby negatively impacting U.S. exports. In addition, the re-engineering of the supply chain 

to avoid the U.S. would result in lower tariff collection on products currently supplied to Mexico and Canada. 

2. Alternate Suppliers are Unavailable 

 A. Power Cell Assemblies 

Siemens develops custom test fixtures for each of the PCBA product families. Switching to a 

supplier outside of China would require significant investment costs because new equipment would need 

to be built. The PCBAs used in the NXGPro product family will require additional investment of over 

[$XXX] worth of test equipment. 

Current shortages in the electronic component market have resulted in extremely high lead times 

which will only by exacerbated by Section 301 tariffs. The electronic component U.S. and global market 

has a surplus of demand without sufficient supply. This has resulted in PCBA component parts being put 
Amb. Robert E. Lighthizer 

October 9, 2018 

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on allocation or obsoleted, or experiencing lead times in excess of one year. We currently experience 

lead times at 400, 500, 600 and even 700 days for our PCBA components. Therefore, in order to ensure a 

usable supply of material, we provide 15 to 18 month rolling forecasts to our suppliers upon which they 

use to order all materials used to support our demand requirements. In addition, we order components six 

months ahead of the required use date in order to reduce our risk of material shortages. Therefore, it will 

take around 1 to 1.5 years for any new supplier to acquire enough materials to fulfil our orders. In 

addition, Siemens would be required to pay the material cost on the 15 to 18 month forecast provided to 

the supplier. Lastly, we would be required to pay the cost on any open orders. The total economic 

burden would be [$XXX] including test equipment costs ([$XXX]) and material/open order costs 

([$XXX]). 

B. Flow Meters 

Siemens factory in Peterborough, Canada (PBH) is the North American Configuration Center for 

Magflow Magnetic Flowmeters. PBH takes semi-finished goods from Siemens’ factory in China and 

combines them with other finished or semi-finished goods to provide a finished product to the North 

American market. 

 

The particular flow tube produced in China, the 7ME658 series, is used in the municipal water 

market in the U.S. for both potable and waste treatment applications and holds approximately [XXX] of 

the market share for flow tubes. The 7ME658 flow tube represents [XXX] of our magnetic flowmeter 

sales in the U.S., with a market value of approximately [$XXX] this fiscal year. Additional costs will 

ultimately be passed on to municipalities thereby negatively impacting already stretched-thin budgets. 

 

HNU produces a similar flow tube, used in primarily Europe, but it is both dimensionally 

different and uses different materials of construction. We would expect more severe impacts to 

municipality costs if we would re-engineer municipal flow applications. Cost impacts would be from the 

work municipalities would have to do, or pay an engineering firm to do, to accept the different flow tube. 

This includes updating drawings, purchasing records, internal training for plant employees, modifying 

installation, etc. Lead times would be impacted by the resulting factory being overloaded with the 

additional U.S. volume. The U.S. market contains greater than [XXX] of the world volume of these flow 

tubes, and [XXX] of all flow tubes manufactured by Siemens. 

 C. DC Master Converters 

Siemens has centralized global production within specific geographic regions. This is standard 

practice within the industry, such that parts of certain machinery are produced in one region to maximize 

economies of scale and promote efficient manufacturing. Relocating portions of the supply chain to the 

U.S. would be a rigorous and time consuming process, as stated above. 

D. Programmable Logic Controllers 

Siemens produces factory automation products such as programmable logic controllers with 

peripherals, logic modules and human machine interface panels in two locations: Amberg, Germany and 

Chengdu, China. The factory in Chengdu is a wholly-owned subsidiary of Siemens AG, the parent 

company headquartered in Germany. The design of the automation products are Siemens intellectual 
Amb. Robert E. Lighthizer 

October 9, 2018 

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property. Engineering control of these products is maintained in Germany and in the U.S. These products 

do not benefit from the Made in China 2025 initiative or any other Chinese industrial program. Due to the 

technical complexity of these products, the manufacturing requires highly specialized, capital intensive 

manufacturing machinery and equipment. The products subject to this exclusion request can only be 

sourced from the Siemens Chengdu, China facility and cannot be sourced from within the U.S. or from 

another country. 

 

 F. Industrial Drives 

 Siemens is the US regional sales organization for Siemens Sinamics V20 drive products. Siemens 

Sinamics V20 drive products are produced in a factory in Nanjing, which is wholly-owned by Siemens 

AG, the parent company headquartered in Germany. These Sinamics drive products are Siemens 

intellectual property and were introduced into the global market prior to 2015. Therefore, these products 

are not contributors to the “Made in China 2025” initiative. Due to the technical complexity of these 

products, the manufacturing requires highly specialized, very capital intensive manufacturing machinery 

and equipment. This makes any transition to alternate manufacturing facilities cost prohibitive and a 

threat to our supply chain. This is why no other facility is set up to produce this product. 

 

The projected near-future, bottom line impact of the imposed 25% tariffs on these products would 

cause severe economic impact as our import value from China is over 90% of our annual cost of sales in 

the U.S. As these products are core to the manufacturing process across all industries, customers in the 

US might see higher prices for products manufactured in the U.S. as a result of this. Furthermore, our 

business invested in additional sales and business development resources across the U.S. as part of our 

strategy which included the Sinamics V20 product intending to grow local business. If due to higher 

costs, our ability to grow in the US was disrupted, all of this investment would need to be channeled 

towards other countries which are not impacted by tariffs and thus would generate sustainable business 

for Siemens. The Sinamics V20 rounds out the total portfolio offering of Siemens drive products, without 

which we are not be able to offer the complete portfolio to our customers. Thus, the financial impact will 

amplify beyond the Sinamics V20 product. 

3. Component Parts of Machinery and Equipment are Not Identified in “Made in China 2025” 

Plan 

Siemens invests significantly in the machine and machine tool industries and understands the 

administration’s goal of protecting the intellectual property rights and trade secrets of U.S. companies 

operating in China; however, imposing Section 301 tariffs on component parts of machine tools and 

equipment from China would not be practicable or effective to eliminate China's unreasonable and 

discriminatory acts, policies, and practices identified by USTR in its report in this investigation. These 

industries are technical and technology-intensive sectors. Innovation and capitalizing on knowledgeintensive, high value activities are the only way for Siemens to remain competitive in global markets. 

The Chinese 2025 program plan aims at developing the following advanced products and parts: 

1). Major products: 
Amb. Robert E. Lighthizer 

October 9, 2018 

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a. Electronic information processing equipment: Focus on the development of 

20000 ~ 60000 r / min high-speed drilling center, five-axis linkage high-speed 

machining center, PSA paste machine and robotic assembly and inspection lines. 

b. Aerospace large structural parts manufacturing and assembly equipment: 

Focus on the processing of aluminum, magnesium, titanium, high-temperature 

alloy and other sophisticated materials with the application of multi-axis linkage 

gantry CNC milling machine, five-coordinate mirroring machine tool, robot 

cluster automatic drilling riveting, composite material automatic laying/sanding, 

multi-dimensional friction welding, super plastic/diffusion forming, precision 

controlled heat treatment, structural fatigue and bearing capacity test equipment, 

large aircraft and large rocket digital assembly. 

c. Key equipment for aero engine manufacturing: Focus on the development of 

horizontal machining centers, turning and milling centers, boring machines, 

internal and external grinding machines, heavy-duty inertia friction welding, 

rolling forming, single crystal casting, high temperature vacuum heat treatment, 

surface strengthening, laser microporous forming equipment for key components 

such as blades, impellers, turbine disks, casings, and spindles. 

d. Key manufacturing equipment for marine and offshore engineering equipment: 

Key development of ship and offshore high-strength steel sheet single-sided 

welding double-sided forming (FCB), curved segment flexible support, highpower laser hybrid welding, multi-point pressure forming and other plane and 

curved segmentation line critical equipment; large diesel engine block, crankshaft 

, advanced processing and forming equipment such as gears, blades and offshore 

racks; and water-deep welding equipment with a depth of more than 1000 meters. 

e. Complete set of processing equipment for key components of rail transit 

equipment: Focus on the development of high-efficiency laser/stirred friction 

welding equipment for aluminum-magnesium alloy/stainless steel body, core 

manufacturing equipment for 30-ton axle heavy-duty electric locomotive, mobile 

high-speed welding equipment above 120Km/h, gears for trains with speeds 

above 350Km/h, lightweight machining and forming equipment such as bearings, 

wheel sets, bogies, and brake systems. 

f. Automobile key parts processing equipment and production line: Focus on the 

development of high-efficiency machining/near-net forming equipment and 

group production lines for automobile engines/gearboxes; development of diesel 

high-pressure common rail, automotive safety, low-cost ultra-high-strength 

steel/aluminum alloy/carbon fiber automotive parts; and new energy vehicle 

electromechanical coupling systems, efficient processing and forming, on-line 

inspection and assembly equipment. 

g. Automobile four major process assembly line: For medium and high-end 

models, focusing on the application of ultra-high-strength steel/aluminum 
Amb. Robert E. Lighthizer 

October 9, 2018 

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alloy/carbon fiber lightweight high-strength materials; development of 

lightweight hybrid materials, servo stamping/molding based on domestic robots, 

and efficient connection (laser welding, riveting, bonding), environment friendly 

energy-saving coating, digital robot assembly and other production lines. 

h. Large-capacity power equipment manufacturing equipment: Focus on the 

development of high-quality casting of millions of kilowatt-class nuclear power 

main pumps, complete sets of gas turbine welding rotor manufacturing 

equipment, robot welding complete sets of millions of kilowatt turbines, 

precision manufacturing equipment for ultra-high voltage power transmission 

and transformation equipment, and digital assembly equipment. 

i. Engineering and agricultural machinery production line: Focus on precision 

machining equipment and complete production lines for engineering and 

agricultural machinery engines, gearboxes, high-pressure and high-flow 

hydraulic systems, as well as robot-based production lines for welding, painting 

and assembly. 

2). Additive manufacturing equipment: Focus on breaking through the highefficiency additive manufacturing process, complete sets of equipment, special 

materials and engineering key technologies of high-performance large-scale key 

components such as titanium alloy, high-strength alloy steel, high-strength 

aluminum alloy, high-temperature alloy, non-metal engineering materials and 

composite materials. Develop laser, electron beam, ion beam and other energydriven mainstream process equipment; overcome bottlenecks such as material 

preparation, print heads, and intelligent software to build an industrial chain. 

3). High-grade CNC system: Focus on the development of multi-axis, multichannel, high-precision interpolation, dynamic compensation and intelligent 

programming, intelligent CNC system with self-monitoring, maintenance, 

optimization, reorganization, etc.; provide standardized basic platform, allowing 

developers, different software and hardware modules intervention, an open CNC 

system with standard interfaces, modularity, portability, scalability and 

interchangeability. 

4). High performance parts: Focus on the development of 20,000 to 40000r/min 

high-speed electric spindles, multi-axis linkage spindle heads, precision gratings, 

high-precision spindle bearings, 1-2 ball screw guides, turntables with 

positioning accuracy less than 6”, etc. Develop complete sets of equipment for 

high performance parts processing, forming, testing and assembly. 

As such, components are not listed as one of the strategic advanced technology manufacturing 

initiatives in the “Made in China 2025” plan. Siemens suppliers are not among those that benefit from the 

Chinese Government's acts, policies or practices identified by USTR, as being unreasonable or 

discriminatory and that burden or restrict U.S. commerce. Siemens has affiliates operating in China. 

Neither Siemens nor its affiliates have been forced to turn over any intellectual property rights and 
Amb. Robert E. Lighthizer 

October 9, 2018 

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innovation control to Siemens’ Chinese suppliers. The above-mentioned longstanding relationships 

between Siemens and its Chinese suppliers have allowed Siemens to rely on dedicated suppliers that have 

an economic incentive to maintain lasting productive relationships and therefore properly maintain and 

protect intellectual property and trade secrets. Indeed, all technology belongs to Siemens and no 

technology or intellectual property is being transferred to Chinese state-owned entities. 

Please direct any questions concerning this submission to the undersigned. 

Respectfully Submitted 

Daniel Cannistra 

Counsel for Siemens Industry, Inc. 
ATTACHMENT 1 

Product Information 
Answers for industry.

usa.siemens.com/sinamics-dcm

SINAMICS DCM

The innovative DC drive — scalable and with integrated intelligence
SINAMICS

The innovative drive family for every requirement

With SINAMICS, Siemens provides a complete and integrated drive family that covers every 

performance level and provides the highest degree of flexibility, functionality and efficiency. 

All SINAMICS drives can be configured, parameterized, commissioned and operated in the 

same standard way. The new SINAMICS DCM drive completes our DC technology drive platform.

Well-proven technology — fit for the future

Worldwide, we are the only supplier who covers DC, AC and medium-voltage applications with 

just one single family of drives. With the integration into SINAMICS, we have updated our DC 

systems to reflect the latest state-of-the-art technology, and in turn, it offers the highest degree 

of standardization and integration — regarding closed-loop control technology, operator 

philosophy and interfaces, as well as engineering tools. Users can select between the AOP30 

Advanced Operator Panel and the BOP20 numerical operator panel and enjoy the wide range 

of benefits of the STARTER and SIZER engineering tools that always ensure the highest 

engineering efficiency. A wide range of interfaces is available for perfect integration into 

existing and future automation solutions. Further, just like all of the SINAMICS members, 

SINAMICS DC MASTER (SINAMICS DCM) is an integral component of Totally Integrated 

Automation, our open system architecture for seamless and integrated automation. 

For basic applications For higher-value applications For basic servo 

applications

For demanding applications For basic 

applications and 

demanding 

applications

For applications with 

high power ratings

Low-voltage

AC

Medium-voltage

AC

DC

SINAMICS 

G110

SINAMICS 

G110D

SINAMICS 

G120P

SINAMICS 

G120

SINAMICS 

G120D

SINAMICS 

G130/G150

SINAMICS 

S110

SINAMICS 

S120

SINAMICS 

S150

SINAMICS 

DCM

SINAMICS 

GM150 / SM150 / GL150 / SL150

V/f open-loop/vector control

0.8 – 120 MW

Closed-loop speed control/

torque control

6 kW – 30 MW

Test stands, cross cutters, 

centrifuges

V/f open-loop/vector control/servo control

0.12 – 4500 kW

Servo control

0.12 – 3 kW 0.37 – 90 kW 0.37 – 250 kW 0.75 – 7.5 kW 75 – 1500 kW 0.12 – 90 kW

V/f open-loop/vector control V/f open-loop 

control

Pumps, fans, 

conveyor belts Conveyor technology Pumps, fans, conveyor belts, compressors, 

mixers, crushers, extruders

Common Engineering Tools

Sizer — for simple planning and engineering STARTER — for fast commissioning, optimization and diagnostics

Pumps, fans, compressors, mixers, 

extruders, crushers, rolling

mills, mine hoist drives, excavators, 

test stands

Multi motor drives, 

rolling mills, Test stands, 

wire-drawing machines, 

extruders and kneaders, 

cableways and lifts

Production machines (packaging machines, textile and 

printing machines, paper machines, plastics machines), 

machine tools, plants, process lines and rolling mills

75 – 1200 kW

Single-axis positioning applications in 

machine and plant 

construction

Pumps, fans, 

compressors, 

0.75 – 7.5 kW

V/f/FCC/ 

vector control

V/f open-loop 

control/FCC

SINAMICS — your advantages at a glance

Wide range of power ratings from 0.12 kW to 120 MW

Available in low-voltage and medium-voltage versions

Standard functionality by using a common hardware and software platform

Common engineering for all of the drives using just two tools

High degree of flexibility and combinability

2
Dynamic, rugged, cost-effective

For many years, DC drives have proven themselves in daily use. Thanks to their dynamic 

performance, ruggedness and cost efficiency, DC technology is the most favorably priced 

drive solution for many applications — with many advantages including reliability, operator 

friendliness and its operational characteristics. In many areas, DC drives still make sense 

technically and economically — just as before.

SINAMICS DCM

The scalable drive system for basic and sophisticated applications 

SINAMICS DCM — your advantages at a glance

Interfaces for PROFIBUS (as standard) and PROFINET (optional)

Variance of the Control Units

Field power supply in-line with market requirements

Electronics power supply for connection to 24V DC

Power unit and voltage measurement from power unit is insulated with respect to ground

Free function blocks and Drive Control Chart (DCC)

Expandable functionality using SINAMICS components

Single phase operation possible

Coated printed circuit boards and nickel-plated copper busbars

Wide temperature range

n	 4Q operation at a favorable price

n	 Continuous operation and full torque 

at low speeds

n	 High starting torque

n	 Wide speed control range

n	 Low space requirements

n	 Reliability

n	 Low torque ripple also at low speed

n	 High overload capability

3
Innovative solutions based upon tradition

The next generation of DC drive technology

The pioneer in DC technology

The Siemens name stands for the highest power of innovation in the long history of DC 

technology. We built the first DC motor more than 130 years ago and played a decisive role in 

the leading edge development of thyristor drive technology — going back more than 40 years. 

1986 we were first on the market with a full digital DC drive platform.

The most modern drive in the DC market — SINAMICS DCM

Many of the SINAMICS tools and components already known from our AC technology are now 

available with SINAMICS DC MASTER for DC technology. This combines the quality, reliability 

and functionality of its well-proven predecessor — SIMOREG DC-MASTER. It offers new 

features that ensure DC technology remains fit for the future in the automation environment. 

This confirms that we believe in this well-proven technology — today and also tomorrow.

The right choice for every application

With its high precision closed-loop motor speed control, our SINAMICS DC MASTER series of drives 

always ensures the optimum processes and sets itself apart as a result of the highest dynamic 

performance. The current and torque rise times respectively lie significantly below 10 milliseconds. 

SINAMICS DC MASTER is used everywhere, where just as before, DC drives are demanded:

n	 Rolling mills

n	 Cross cutters and shears

n	 Wire-drawing machines

n	 Extruders and kneaders

n	 Presses

n	 Elevator and crane systems

n	 Cableways and lifts

n	 Mine hoists

n	 Test stand drives

Customers around the globe 

have been using DC drives from 

Siemens for decades. And for 

a good reason — many years 

of experience, extensive and 

specific expertise, and a continual 

development guarantee drive 

solutions with the highest degree 

of reliability reflecting state-ofthe-art drive technology.

4
SINAMICS DCM is available in two versions —

DC converter series

Ready-to-connect converter chassis units with rated DC currents 

from 15 to 3,000 A and rated input voltages extending from 

3-phase 400 up to 950V AC — as two-quadrant, as well as 

four-quadrant drive. 

The optimal current and voltage increments, the overload 

capability, the large permissible tolerances regarding input 

quantities as well as the numerous options allow users to select 

the perfect unit for their particular application — just like a 

tailored solution. 

Electronic module including the Control Unit and standard 

interface as well as slots to expand the drive system with an 

additional Control Unit and other optional interfaces.

Power unit with thyristors in a fully-controlled three-phase 

bridge circuit configuration (two-quadrant drive: B6C or 

four-quadrant drive: (B6) A (B6) C)

The two quadrant drive offers motoric operation in one drive 

direction and generatoric operation in reverse drive direction. 

With 4 quadrant drives motoric and generatoric operation in 

both drive directions is possible.

Fan (up to 125 A: self-ventilated)

Field power unit with integrated free-wheeling circuit 

(optional, also without field or as two-quadrant field for 

high dynamic variation of excitation current with integrated 

field overvoltage protection)

Electronics power supply

Standard BOP20 operator panel

Controle module

Makes retrofit quite simple. Old is transformed into new — 

simply and economically.

SINAMICS DC MASTER Control Module, successor of the SIMOREG 

Control Module, is the ideal solution for retrofitting and 

modernizing existing DC drives — with fully digital closed-loop 

control and all of the advantages of state-of-the-art open-loop 

control technology. While the motor, mechanical system and 

power unit remains unchanged, only the closed-loop control 

section is replaced. 

As a result, an existing DC drive gets the full functional scope of 

the new SINAMICS DC Master. It becomes an integrated member 

of the SINAMICS family of drives, easy-to-operate, with precise 

closed-loop control characteristics and high dynamic performance. 

It can be flexibly expanded and fully integrated into any 

automation environment.

Just like the DC Converter, the Control Module is also freely 

scalable regarding performance and functionality. Its space-saving 

design guarantees simple integration into the plant or system. The 

control module can be split depth-wise so that users benefit from 

the optimal mounting and installation options. 

In addition, the PC boards for firing, voltage sensing and fuse 

monitoring can be separated and located outside the unit, 

directly at the power unit. Our control module is extremely 

service-friendly as all of the individual components can be 

easily accessed.

5
Well-conceived down to the finest detail

First-class innovation

Perfectly scalable

Thanks to its scalability, our series of drives has a convincing performance both in basic 

applications as well as in sophisticated and demanding tasks. For standard closed-loop control 

tasks, SINAMICS DC MASTER is equipped with a Standard Control Unit (CU). The closed-loop 

control performance can be expanded using the Advanced CU for applications with higher 

requirements placed on the computational performance and interfaces. The ability to select 

the various options — Standard CU, Advanced CU, or a combination of both — means that the 

computational performance and speed can be optimally adapted to the specific requirements. 

Depending on the particular application the units are available as two quadrant converter and 

as four quadrant converter, in the standard configuration also with integrated field supply. 

The rated DC current range extends from 15 A all the way up to 3,000 A and can be further 

increased by connecting DC converters in parallel.

Can be flexibly expanded

SINAMICS DC MASTER can be flexibly expanded in a modular fashion — from the standard up to 

the high performance solution. The comprehensive range of products and an entire selction of 

options allow the drive system to be optimally adapted to the specific plant or system 

requirements — both technically and economically. The interfaces of the CU and the number of 

digital inputs and outputs can, when required, be supplemented — e.g. using supplementary 

SINAMICS modules such as the TM15 and TM31 Terminal Modules.

High degree of plant or system availability

SINAMICS DC MASTER plays a decisive role when it comes to a high plant or system availability. 

This doesn’t just happen by chance. The drive as a whole, along with its components, distinguish 

themselves through a maximum degree of reliability, individually and when inter-connected 

and operating with one another. Throughout the complete production process, every component 

is subject to exhaustive checks and tests. This guarantees a high functional safety when 

installing, commissioning and operating these units. However, if service is required, components 

can be quickly and easily exchanged.

With SINAMICS DCM, users of DC 

technology benefit from a perfect 

combination of the well-proven and 

the highest degree of innovation. 

This leading-edge drive sets itself 

apart as a result of its perfected 

technology and an entire list of 

well-conceived features.

6
And last but not least, the consequential level of standardization across our extensive range of 

products ensures that service personnel don’t have to know each and every version, but can 

use their existing knowledge and expertise.

An additional advantage — SINAMICS DC MASTER permits redundant operation, which results in 

the extremely unlikely event of a master or slave unit failure; the complete system still functions.

Fast and easy commissioning

Each drive in the SINAMICS family can be quickly and easily commissioned and parameterized, 

either menu-assisted at the AOP30 Advanced Operator Panel or PC-supported using the 

STARTER commissioning tool.

SINAMICS DC MASTER is already pre-configured in the factory. This means that unit-specific 

parameters do not have to be set. Application-specific adaptions can be done simply by 

parameter setting — there are no pot, switches or jumpers which need to be adjusted. As a 

result, when service is required, the units can be immediately installed and used. 

Intuitive operator control

The AOP30 Advanced Operator Panel with graphics-capable, illuminated LCD display has a 

menu-assisted interface with plain text. This makes operator control even more reliable. 

Analog setpoints and actual values can be displayed in a bar-type diagram on the graphicscapable display. This means that important drive operating parameters can be quickly seen at 

a glance. Additional features of the AOP30 — a help function to signal faults, including their 

causes and instructions on how they can be resolved, as well as a keypad to control the drive 

during operation.

7
SINAMICS DCM

Endless communication possibilities

PROFIBUS — the Number 1 among field buses

SINAMICS DC MASTER supports PROFIBUS DP as standard. The globally-leading standard 

fieldbus allows high-performance integrated communication between all of the components 

in an automation solution — HMI (operator control and visualization), open-loop control, 

drives and I/O.

Industrial Ethernet Connectivity — for more performance and open IT communication

As a global leader in drive technology, Siemens stands out front with progressive Industrial 

Ethernet developments. Known the world over for innovative drive technology, Siemens is also 

well ahead of the Industrial Ethernet connectivity curve.

With direct network connectivity to PROFINET, EtherNet/IP and standard Ethernet TCP/IP, 

SINAMICS DC Master drives always fit comfortably within your plant’s network. Backed by 

proven experience in the widest range of demanding applications, the choice to use SINAMICS 

DC Master drives for your next application is more clear than ever.

PROFIdrive — the fit-for-the-future drive profile

PROFIdrive defines the functional interface between the control and the drives for PROFINET 

and PROFIBUS. PROFIdrive is the leading edge drive profile according to IEC 61800-7 specified by 

the PROFIBUS International (PI) User Organization. The specific advantage for users is that the 

user program does not have to be changed at a transition from PROFIBUS to PROFINET. 

PROFIdrive defines the device behavior and how internal device data is accessed for electric 

drives connected to PROFIBUS and PROFINET — from basic single drives up to complex an high 

performance multi motor applications.

Just like all SINAMICS drives, 

SINAMICS DCM meets and 

exceeds every requirement when 

it comes to communication 

options. Whether PROFIBUS or 

PROFINET, our innovative drive 

is available with all of the 

corresponding interfaces.

8
Highest power density in the smallest space

Our DC motors allow innovative machines to be implemented while reducing the mechanical 

design costs. In order to optimize the thermal and magnetic utilization, as well as the 

mechanical design, these motors were developed using computer-based computational 

techniques. We only use the highest quality materials with outstanding mechanical, magnetic 

and electrical properties for our motor production. The result — the highest power densities 

with an extremely compact design with low shaft heights.

Extremely quiet 

When it comes to noise, we haven’t left anything to chance with our DC motors. Examples 

include the special main pole shape and the optimized separately-driven fan. These measures 

in the mechanical and magnetic area as well as the optimum fan design guarantee a very low 

noise level. Operating personnel benefit from this and the costs for local noise insulation onsite are reduced.

Long lifetime — minimum service costs

The use of especially coordinated and harmonized materials reduces brush wear. This 

facilitates a high smooth running quality while ensuring quiet operation; reduces the stress on 

the motor; and minimizes torque ripple and vibration. Together with our sealed insulation 

system, this guarantees a high lifetime with minimum service and maintenance costs. In the 

unlikely event of a problem, our global service and support team guarantees short delivery 

times — to achieve the highest degree of availability. 

First choice for every class of power

Our DC motors cover a range of power ratings extending from 31.5 kW up to 1,610 kW — 

non-compensated from shaft heights 160 to 280 and compensated from shaft heights 355 to 

630, naturally-cooled or force-ventilated, with or without fan. The modular structure of our 

portfolio permits every combination to be achieved. Not only this, our DC motors can be 

optimally integrated into the automation environment via specific interfaces on the drive — 

for monitoring during operation, precise diagnostics and effective service and maintenance.

DC motors from Siemens

The perfect partner

Our DC motors prove themselves 

on a daily basis — whenever 

favorably-priced drive technology 

and the highest degree of 

availability are required. They 

are available in IP23, IP54 or 

IP55 degrees of protection, and 

are equipped with the highquality DURIGNIT® insulation 

system. This reults in the 

optimal solution always being 

available, even in the toughest 

environmental conditions. But 

what is especially important is 

they are perfectly suited for use 

with SINAMICS DCM drives.

9
Standard engineering

Professional software tools — easy and efficient

SIZER engineering software

SIZER LD web is used when engineering SINAMICS DC MASTER. It is used to select and 

dimension the optimum drive for the particular application — www.siemens.com/sizer-ld

SIZER LD web supports every engineering step of a drive in a workflow:

n	 Input of motor data, converter data and AC line supply data

n	 Selection of SINAMICS DC MASTER options

n	 Compilation of the required documentation and accessories

Engineering results include —

n	 Data sheet with the technical data of the engineered drive and where relevant, 

the accessories

n	 Drive dimension drawing

In the future, not only will SIZER LD web be able to be used to engineer SINAMICS DC MASTER, 

it can also be directly carried out via the configuration list in the Siemens Industry Mall —

https://mall.automation.siemens.com

STARTER commissioning software

STARTER is available for commissioning SINAMICS drives. The intelligent tool provides support 

when it comes to simply configuring and commissioning the drive components — menuassisted and graphically-supported. What is especially helpful is that STARTER allows all of 

the relevant data to be imported from the electronic rating plates of the drive components. 

This significantly reduces the associated costs, speeds up parameterization and prevents 

possible incorrect entries. Entries can be checked and parameters optimized using integrated 

test functions. 

Find more information online — www.siemens.com/drivesolutions in the left-navigation under 

“Engineering and Commissioning Software”

Even stronger in the team

STARTER can run as a dedicated Windows application. It is coupled to the drive through a serial 

interface, PROFIBUS DP or PROFINET. STARTER can be integrated both into SCOUT — the 

engineering system of our SIMOTION motion controller — as well as into STEP 7, the engineering 

software of our SIMATIC industrial automation system. This solution pays for itself when service 

is required — simple diagnostics and troubleshooting are permitted either locally or through 

remote service.

Drive Control Chart

Using Drive Control Chart (DCC), SINAMICS can handle classic closed-loop drive control. 

Not only this, drive-related open-loop and closed-loop control tasks can be shifted into the 

drive itself. The advantages — this ensures the highest degree of flexibility when it comes to 

optimal adaptation to specific drive and automation scenarios. It also relieves the load on 

higher-level controls, simplifies the implementation of machine sequences and significantly 

increases the overall machine performance. 

10
Rated data

Two-quadrant 

operation

Four-quadrant 

operation

Armature circuit Field circuit

Rated supply 

voltage V

Rated DC 

voltage V

Rated DC 

current 

A

Rated supply 

voltage V

Rated DC 

current 

A

3 AC 400 485 for 2Q

420 for 4Q

15

2 AC 400

3 – X

30 5 – X

60 10 X X

90 10 X X

125 10 X X

210 15 X X

280 15 X X

400 25 X X

600 25 X X

850 30 X X

1200

2 AC 480

40 X X

1600 40 X X

2000 40 X X

3000 40 X X

3 AC 480

575 for 2Q

500 for 4Q

15

2 AC 480

3 – X

30 5 – X

60 10 X X

90 10 X X

125 10 X X

210 15 X X

280 15 X X

400 25 X X

600 25 X X

850 30 X X

1200 40 X X

3 AC 575 690 for 2Q

600 for 4Q

60

2 AC 480

10 X X

125 10 X X

210 15 X X

400 25 X X

600 25 X X

850 30 X X

1100 40 X X

1600 40 X X

2000 40 X X

2200 40 X X

2800 40 X X

3 AC 690 830 for 2Q

725 for 4Q

720

2 AC 480

30 X –

760 30 – X

1000 40 X X

1500 40 X X

2000 40 X X

2600 40 X X

3 AC 830 1000 for 2Q

875 for 4Q

950

2 AC 480

40 X X

1500 40 X X

1900 40 X X

3 AC 950 1140 for 2Q

1000 for 4Q 2200 2 AC 480 40 X X

Control Unit 

Advanced Control Unit, left

Standard Control Unit, right

Advanced Control Unit, right

Communication Board CBE20, left

Communication Board CBE20, right

Memory card, left

Memory card, right

Field

Field power unit, 2Q

Without field power unit

85 A field power unit

Fans

Fan for single-phase power supply

Additional options

Electronics power supply

for connection to DC 24 V

Armature circuit voltage with 

low voltage 10 to 50 V

Coated modules

Nickel-plated copper busbars

External sensors for the mean 

ambient or intake temperature

Technical data Options

SINAMICS DCM

Technical information and options

11
Looking for more information? Look no further.

Everything you want to know about our motion control products,

services and solutions can be found online:

Motion control

usa.siemens.com/motioncontrol

Motors

usa.siemens.com/simotics

Control systems

usa.siemens.com/simotion

usa.siemens.com/cnc

Drives

usa.siemens.com/drives

Energy efficiency

usa.siemens.com/energysavings

Distributor locator

usa.siemens.com/distributorlocator

Siemens Industry, Inc.

5300 Triangle Parkway, Suite 100

Norcross, GA 30092

1-800-879-8079

mcs.motioncontrol.industry@siemens.com

Order No. DRBR-DCM01-0613 

Printed in USA

© 2013 Siemens Industry, Inc.

usa.siemens.com/motioncontrol

This brochure contains only general descriptions or performance features, 

which do not always apply in the manner described in concrete application 

situations or may change as the products undergo further development. 

Performance features are valid only if they are formally agreed upon when 

the contract is closed.

Siemens is a registered trademark of Siemens AG. Product names mentioned 

may be trademarks or registered trademarks of their respective companies. 

Specifications are subject to change without notice.
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