Home > Products > Product groups > Electric Drives and Controls > Topics > Modular drive system: IndraDrive ML
IndraDrive ML – Large Electric Drives up to 4 MW
Content Electric drive technology for powers in the megawatt range
The IndraDrive ML extends the IndraDrive series into the upper power range: individually up to 500 kW, connected in parallel up to 8 devices and up to 4 MW. These space-saving, modular inverters are real all-rounders – they can be used as a mains power inverter or as a motor inverter. This minimizes the variants, simplifies handling and reduces your storage costs. And you save energy at the same time.
- Features
Efficient - Universal - Intelligent
As the newest member of the IndraDrive family by Rexroth, IndraDrive ML offers flexible solutions with intelligent functions for powerful drives – all the way up to the megawatt-area. With these Large Electric Drives, Rexroth is helping machine manufacturers overcome the rising pressure of today's markets to reduce costs while increasing productivity, flexibility and efficiency.
- Key technical data
- Device settings from 110 kW to 500 kW up to 8 increments
- System output of up to 4 MW by means of parallel connection
- Supply voltage: 3 AC 380 ‒ 500 V, 525 - 690 V / 50 ‒ 60 Hz / TN, TT and IT network
- Types of cooling: liquid cooling, air cooling
- 1.5-fold overload for 60
- Efficient
- Optimal classifications for individual performance of 110 kW to 500 kW
- Application-optimized energy-saving concepts
- High coolant temperature for efficient heat recovery
- High switching frequency for optimal motor utilization
- Charging of electrical energy storage units up to 700 kJ
- High power density through efficient cooling
- Universal
- From standard to high-end servo applications
- For asynchronous and synchronous motors
- Universal inverter as a motor inverter or power supply
- Water and air cooling
- Multi-Ethernet and multi-encoder interface
- Comprehensive interface options
- Wide voltage range from 380 V to 500 V and 525 V to 690 V
- System power of up to 4 MW with parallel connection
- For industrial applications as well as for marine applications
- Intelligent
- Integrated Motion-Logic Control for single axis and multi-axis solutions
- Safety on Board from Safe Torque Off to Safe Motion
- Productivity Agent for preventive maintenance
- Comprehensive firmware functions
- Application-specific technology functions
IndraDrive ML offers numerous benefits for our customers
Through power regeneration, DC coupling for multi-axis systems, concepts for static and rotating energy storage as well as Smart Energy Mode, diverse possibilities for energy savings are available. Alternative cooling types also offer different possibilities for the removal and use of waste heat.
| | Advantage | Your benefit | Graphic |
| Universal inverter | Universal use as feeding / regenerating power supply or as motor inverter | Reduction of variants and stock costs, simplified handling | Universal power inverter |
| Parallel operation | Parallel operation with up to 8 power units | Reaching of a broad power range with optimum number of devices | Parallel operation |
| Wide voltage range | 2 Voltage models 380 - 500 V and also 525 - 690 V for a wide application range | Reduction of variants and reduced stock costs | |
| Numerous certifications | Certifications for industrial applications pursuant to CE, UL, CSA as well as type approved in typical marine applications according to the ship classification authorities DNV GL, ABS, LR | Wide application range with fewer variants | |
| High PWM frequency | No oversizing of motors or inverters necessary | Smaller motors / devices usable | |
| High coolant temperature | Efficient discharge of heat losses due to high coolant temperature of 60 °C | Less energy for discharging and utilization of the heat losses necessary | |
| Modular filter concept | Scalable solutions for multi-axis applications | Energy saving operation possible by energy exchange of many axes at one DC-bus | |
| Several concepts for energy saving | Optimum adaption to the application | Efficient operation in all applications | Mains regenerative power
Smart Energy Mode
DC links
Intelligent energy management
Electric Buffering
Kinetic Buffering
Regulation of reactive current |
| Regulated power supply | Mains regeneration, less harmonic distortions, mains voltage independent DC-bus voltage | Optimal energy management, low network load, resistant to voltage fluctuations, wide voltage range for international field of application, constant machine performance regardless of the mains supply | |
Applications
Rexroth is the only automation specialist in the market that can realize hydraulic, hybrid and electrical drive solutions from one source all the way through to the megawatt area.
Users, such as OEM, profit from Rexroth's thorough industry and application know-how - be it in conversion technology, the Marine and Offshore division or many others. Here is an overview of all industries in which the IndraDrive ML makes new possibilities for innovative machine concepts available.
| Industry sector | Application | References |
| Machine Tools (forming) and presses | | Retrofit with IndraDrive ML at Schuler Pressen GmbH |
| Metallurgy | | |
| Plastic Machinery and Die Casting | - Extusion
- Injection molding machines
| |
| Marine and Offshore | - Trawler and anchor winches
- Ship cranes
| |
| Materials Handling | - Container cranes
- Belt conveyors
| |
| Testing Technology | - Gearbox and motor testing rig
- Hydraulic testing rig
| |
| Printing and Converting | - Flexographic printing
- Winding machines
- Cross cutter
- Central dc-supply
| |
| Civil engineering | - lift bridges
- hydropower generators
| |
