Distributed drives

SIEMOSYN 1FU8 motors with integral MICROMASTER 411 inverter

SIEMOSYN motors with integral inverters form a variable-speed drive with a superior control response. These variable-speed drives are used wherever there is no space for an inverter/control cabinet.

Here, the SIEMOSYN 1FU8 motor and the MICROMASTER 411 inverter are designed to be connected to each other, and where otherwise both components are physically separate (the motor at the work machine, the inverter in the control cabinet) they merge into one compact unit. The following advantages are added to the benefits of the SIEMOSYN motor:

• The versatile and communications-enabled inverter electronics with links to bus systems make a significant contribution toward minimizing energy costs within the scope of the automation solution.
• Significant time and cost benefits over conventional solutions:
  • Reductions in control cabinet requirements (no need for control cabinet, inverter is attached to the motor)
  • Reductions in mounting and installation overhead (motor and inverter are supplied ready-mounted, no wiring between the two components)
  • Reduced noise emissions (EMC) since the connection between the motor and the inverter is only a few centimeters within the housing. There are consequently no cable length problems, so savings are made on inverter output components (long cables).
  • Savings in configuring and engineering overhead since the motor and inverter units are optimally matched according to customer requirements and are supplied as a complete, ready-mounted drive unit.
  • Offloading of the controller thanks to integral monitoring functions of the frequency inverter.
  • Integrated communication from the control level right down to the field level guarantees transparent access to all components of the system.
  • Service-friendly thanks to a new adapter concept that enables easy separation of motor and inverter.
  • Problem-free replacement of constant-speed motors with variable-speed inverter motors since the SIEMOSYN motors have the same mechanical dimensions as the conventional asynchronous motors.
• Decentralization of several units:
  In the control cabinet, heat losses are channeled to the outside and necessary air conditioning can be minimized.
  Space is saved in the control cabinet, and the integration of the MICROMASTER 411 into the motor increases space requirements only negligibly.
• Simple and problem-free wiring and installation enable easy retrofitting of speed-controlled compact drives in existing plants.
• The MICROMASTER 411 can either be installed on the motor or wall-mounted in the immediate vicinity of the motor.

MICROMASTER 411

The frequency inverter is contained in the DA 51.3 Catalog that includes the entire product range with ordering data, technical specifications and explanations.

The modular design makes it possible to individualize MICROMASTER 411 orders, including accessories, for example:

• Basic operator panel (BOP) for parameterizing the inverter
• Advanced operator panel (AOP) with multi-language display
• PROFIBUS module
• ASI module
• DeviceNet module
• Combination module consisting of brake resistor and electromechanical brake control
• Electromechanical brake control module
• PC connection kit
• PC startup programs

Inverter data

• 0.37 to 3 kW, 3 AC 400 V
• Degree of protection IP66, natural ventilation
• Galvanic isolation between the electronics and the connection terminals
• Parameter sets for fast startup and cost savings
• Operation without operator panel possible (using jumpers and/or control potentiometer)
• Integrated control potentiometer accessible from outside
• U/f characteristic (freely configurable)

If desired, the motors with integral inverter are optimally matched, mounted, tested, and parameterized in accordance with customer requirements.

SIEMOSYN 1FU8 motors with/without integral MICROMASTER 411 inverter, with integral gears

The 1FU8 motors can also be supplied as geared motors with/without integral frequency inverter. The gears are identical with the gears described in Catalog M15. Instead of the 1LA7 squirrel-cage motor, the permanent magnet excited SIEMOSYN 1FU8 synchronous motor is used.

Siemens geared motors enable individual solutions for diverse tasks in drive engineering. The host of possible combinations makes optimal adaptation to the many drive situations possible. Depending on design, the gears are available for a transfer range of 2.78 to 485 and a maximum output torque of 80 to 12000 Nm at a drive power rating up to 7.5 kW.

Technical data