Siemens Answers with SINAMICS DC Master – the Next Generation of DC Drives

The SINAMICS DC Master combines the advantages of its predecessor, the SIMOREG DC Master, with those of the SINAMICS drives family. Many of the same tools and components so successful in AC technology are now made available for SINAMICS DC drives. This series of drives sets itself apart as a scalable drive system – both for basic as well as demanding and sophisticated applications. For the standard closed-loop control, the DC converter is equipped with a standard control unit for converters (standard CUD). For applications demanding a higher computational performance and interfaces, the system can be expanded by an advanced CUD.

Overview

The SINAMICS DC Master series combines the open-loop and closed-loop control and power units in one device and therefore offer a compact, space-saving design. The AOP30 Advanced Operator Panel and the BOP20 Basic Operator Panel are available for commissioning and local operator control. The interfaces of the CUD and the number of digital inputs and outputs can be supplemented using additional modules – such as the TM15 and TM31 Terminal Modules.

Features
•	PROFIBUS, PROFINET, and EtherNet/IP communications options
•	Single-phase connection is possible for units ≤ 125 A
•	Variance of control units
•	Field power supply in-line with requirements in the field
•	24 V DC electronics power supply
•	Power unit is insulated with respect to ground
•	Free function blocks are integrated in the standard version and Drive Control Chart
•	Functionality can be expanded using SINAMICS components
•	Coated boards and nickel-plated copper busbars (optional)
•	Wide temperature range

Technical Information

Power range	5 to 24,000 HP (6.3 – 18,000 kW)
Rated DC current	15 to 3,000 A (single converter)
Rated supply voltage	3-ph. 85 to 950 V AC
Rated field DC current	3 to 40 A (optional: 85 A)
Rated frequency	45 to 65 Hz
Degree of protection	IP00
Storage and transport temperature	-40 to +70 °C
Standards	IEC, EN, DIN, VDE, UL, cULus, NEMA, UL 508 C, GOST
Operation	2Q and 4Q

SINAMICS DCM Control Module

The SINAMICS DC MASTER Control Module offers the optimum solution when retrofitting and modernizing existing DC drives. Unlike the SINAMICS DC MASTER Drive, which comprises open-loop / closed-loop control and power unit, the Control Module is used solely as a component of modernization. There are many plants and systems with DC technology, which in their present condition can no longer be coupled with state-of-the-art automation systems, like Totally Integrated Automation. In retrofitting or upgrading, the existing motor, mechanical system and power unit may be retained and only the control unit is replaced by the Control Module. This allows for a state-of-the-art DC drive at an extremely favorable price with the full functional scope of the well-proven, fully digitized units from the SINAMICS DC MASTER series.

When it comes to quality, reliability and functionality, the SINAMICS DC MASTER Control Module is exactly the same as its predecessor – the SIMOREG CM – however, functionally, it offers new features from the range of the SINAMICS DC MASTER.

The flexible design, as well as the available pre-assembled cable harnesses and mounting components, simplify integration into existing plants and systems. Adaptation to the configuration and to the power data of the existing components is realized through simple parameterization. By using an Advanced Operator Panel AOP30, a favorably priced alternative is obtained to control cabinet measuring instruments. Using a compact space-saving design, the SINAMICS DC MASTER Control Module, which includes a field power unit, may be split depth-wise to allow even better utilization of the mounting/installation space.

Features

Variance of the Control Units
24 V DC electronics power supply
Integrated field power unit
Free function blocks integrated into the standard version and Drive Control Chart
Functionality may be expanded using SINAMICS components
Compact design and can be split depth-wise
Coated boards and nickel-plated copper busbars optional
Wide temperature range
PROFIBUS, PROFINET, EtherNet/IP™ connectivity options
Suitable protective measures (among others IT-Security, e.g. network segmentation) have to be considered to ensure safe operation of the plant.

Technical Overview

Connecting rated supply voltages of the armature circuit, power unit	3 AC 50 / 125 / 250 / 575 / 1000 V
Rated supply voltage for electronics	DC 24 V (DC 18 to 30 V); In = 5 A
Rated field supply voltage *	2 AC 480 V (+10 / -20 %)
Rated frequency	45 to 65 Hz
Rated DC field voltage	max. 390 V
Rated DC field current	40 A
Storage and transport temperature	-40 to +70 °C

* Supply voltage can lie below the rated supply voltage – the actual rated value can be parameterized. This applies to both the armature as well as the field circuit

Typical Applications

The main applications for the SINAMICS DC MASTER Control Module include the retrofit and modernization of DC drives in existing plants and systems, especially high-rating drives using DC technology. There are many older systems that still employ analog technology that cannot be easily or affordably connected to a state-of-the-art automation system.

SINAMICS DCM Base Drives

The SINAMICS DC Master (DCM) Base Drive from Siemens is an extremely flexible and cost-effective solution for both new installations and retrofits where space is limited. This pre-wired solution comes complete and tested with all the necessary components mounted on a back panel. SINAMICS DCM Base Drives are ideal for end-users and third-parties such as Siemens Solution Partners and system integrators.

The DC Base Drive has been around for over 25 years, beginning with the third generation 6RA22 digital DC drives, circa 1986. TheSINAMICS DCMBase Drive is unique in that the DC I rating of the Converter is used for each panel design. Advantages with SINAMICS over the previous two generations include more power per panel in the same footprint making it easy to retrofit existing legacy base drive installations. In addition, in new installations where 150% overload is not needed (i.e. MG Set Field supplies), the SINAMICS DCM Base Drive offers a significant cost advantage.

The Standard base drive range includes base drives that are rated from 15 A to 1200 A DC continuous current.
The Extended base drive range includes base drives that are rated from 1500 A to 2800 A DC continuous current.

Standard Features & Benefits

Standard base drive range: 3 to 800 HP in DCI rating or up to 500 HP with DCII rating as a pre-engineered, standard design – minimizing engineering and delivery times
Extended base drive range: 1250 to 2500 HP in DCI rating or up to 2000 HP with DCII rating as a pre-engineered, standard design – minimizing engineering and delivery times
DC converter — includes Advanced Control Unit DC (CUD), communication board – PROFINET, EtherNet/IP and standard Ethernet TCP/IP (CBE20), micro memory card and Basic Operator Panel (BOP20)
450-1200A converters include a single phase fan at 230V AC as standard
1500-2800A converters include a three phase fan at 480V AC as standard
Fusing — input fuses, field fuses, DC output fuse for regenerative units
Control power transformer
AC contactors line side 15-850A, DC loop contactor >1200A
PROFIBUS
UL508A certification
65KA SCCR rating

Benefits

Increased productivity
High-dynamic performance
Decreased project cost
Reduced maintenance costs
Easy- to-install
Pre-wired and tested for easy startup
Converters can be replaced without changing the panel
Drop in replacement for 6RA24 and 6RA70 base drives
More current per panel than previous generations
SINAMICS options are easy to add
125 A and below base drives can be run at single-phase incoming supply with drive de-rating

Technical Data

	15 – 1200 A DC	1500 – 2800 A DC
Electrical
Supply voltages and output ranges	240V / 480V 3-phase AC, +10/-20%, 3 to 800 HP < 125A base drives can be run at single-phase AC with 30% de-rate	575V 3-phase AC: +10/-20%, 1250 to 2250 HP 690V 3-phase AC: +10/-20%, 1250 to 2500 HP 830V 3-phase AC: +10/-20%, 1750 to 2000 HP 950V 3-phase AC: +15/-20%, 2500 HP
Supply systems	Grounded or ungrounded supplies	Grounded or ungrounded supplies
Rated line frequency	45 to 65 Hz	45 to 65 Hz
Output voltage	0 to 500V DC	575V 3-phase AC: 0 to 600V DC 690V 3-phase AC: 0 to 725V DC 830V 3-phase AC: 0 to 875V DC 950V 3-phase AC: 0 to 1000V DC
Overload possibility	Max. 1.8x rated DC current	Max. 1.8x rated DC current
Short circuit current rating	SCCR per UL508A: 65 kA	SCCR per UL508A: 65 kA
Mechanical
Type of enclosure and color	Open IP00	Open IP00
Type of cooling	Self–ventilated / forced-air ventilation	Forced-air ventilation
Noise level LpA (1 m)	70 to 74.4 dB(A) at 60 Hz line frequency	75.6 dB(A) at 60 Hz line frequency
Compliance with Standards
UL listing	UL and cUL (508A), drive components are listed UL508C	UL and cUL (508A), drive components are listed UL508C
Ambient Operating Conditions
Ambient temperature	32 to 113˚F (0 to +45˚C)	32 to 104˚F (0 to +40˚C)
Relative humidity (non-condensing)	5 to 95%	5 to 95%
Installation altitude	Up to 3,300 ft (1000 m) above sea level without de-rating	Up to 3,300 ft (1000 m) above sea level without de-rating

The SINAMICS DC MASTER is the new generation of DC converters from Siemens.
The name SINAMICS DC MASTER – briefly: SINAMICS DCM – stands for the strengths of this new generation. It combines the advantages of its predecessor – the SIMOREG DC-MASTER – with the advantages of the SINAMICS family.
Available in two different unit versions, SINAMICS DC MASTER can be optimally integrated into each plant or system:

SINAMICS DCM DC Converter, the chassis unit that can be universally used
SINAMICS DCM Control Module, to modernize existing plants and systems, especially for very high power ratings

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