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Entry type: Product note Entry ID: 109748353, Entry date: 07/25/2017
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SINAMICS Technology Extension: Delivery release of the Version V1.2 from SERVCOUP (Servo Coupling)

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With immediate effect, the version V1.2 of the SINAMICS Technology Extension SERVCOUP has been released for general delivery. A Technology Extension (TEC) is also known as Open Architecture (OA) application.

Brief description of the product

For SINAMICS, the SINAMICS Technology Extension SERVCOUP (Servo Coupling) from the Advanced Technology Functions is an extension for the SERVO drive object.
In the SERVO control mode, SERVCOUP allows motors to be operated which, as a result of their size and/or type of construction, cannot be operated from an individual SINAMICS S120 power unit. These motors are split up into several drive objects, each of which can be operated on a Motor Module, and can be coupled with one another. As a consequence, the individual drive objects can be seen as partial motors with their own winding and terminals.

Irrespective of the number of coupled drive objects, only one encoder is required for the operation of the motor because the Technology Extension SERVCOUP implements a digital encoder splitter in the Control Unit. In this way, the actual encoder values together with the setpoint specifications are passed on to all encoderless drive objects.

When compared to hardware-based solutions, this provides advantages regarding wiring costs, degree of ruggedness and the number of hardware components required.

Highlights

  • Coupling of SINAMICS S120 power units (Booksize/Chassis) in the SERVO control mode using one encoder

  • Replacement for analog/digital encoder splitters, thus

    • simplified use

    • increased ruggedness

    • fewer hardware components

  • The controller is coupled digitally in the Control Unti

  • Master-slave coupling in the drive

  • Speed controller with encoder connection only required on the master axis

  • Setting the angular offset between the master and slave drive objects

  • Setting a scaling factor for the torque setpoint between master and slave drive objects

  • Support of incremental and absolute encoders


Typical applications

For example, the following applications can be implemented with SERVCOUP:

  • Servo presses (1FW4) and test rigs for high performances with superior dynamics
  • Machine tools as built-in spindle drive (1FE2) respectively milling centers with large rotary tables (1FN3)
  • Gantry applications with linear motors (1FN3)


Product properties and technical details

With the Technology Extension SERVCOUP, in the SERVO control mode, motors can be operated which, as a result of their size and/or type of construction, cannot be operated from an individual SINAMICS power unit. Corresponding to the size and/or type of construction, the motors are split up into several drive objects, corresponding to the windings, segments or primary sections/stators, and then each can be operated with a Motor Module. One of these drive objects must be configured as master drive object, and this is then assigned the motor encoder. Typically, the encoders are connected to the master Motor Module via SMx or directly using DRIVE-CLiQ. Only one encoder is required for each motor. The Technology Extension SERVCOUP is responsible for the closed-loop control of the other drive objects using a master-slave coupling in the drive. The encoder values of the master drive object are transferred to up to five further encoderless slave drive objects via a digital encoder splitter in the Control Unit. All slave drive objects in the group implement their own current controller with these encoder values and the transferred torque setpoint of the master drive object. Thus, a motor can be operated with up to 6 drive objects without analog encoder splitter:


SERVCOUP example: Motor with 2 drive objects (optionally, up to 6) - and 1 encoder

For motors with fewer drive objects, several SERVO couplings can be operated on one Control Unit. One possible application is operating two SERVCOUP-controlled double-winding motors on one Control Unit.

Supported motors

The Technology Extension SERVCOUP is generally released for the following SIMOTICS motors:

  • 1FE2 (built-in spindle motor)
  • 1FN3 (linear motor)
  • 1FW4 (torque motor)
  • 1FW6 (torque motor)
  • 1FW68 (segment motor)

Fundamentally, operation is possible with the following motors:

  • Segment motors (axial and radial)
  • Direct drives (linear and rotary)
  • Double and multi-winding motors (induction and synchronous)

For these motors, the use of the Technology Extension SERVCOUP must be tested and released on an individual basis.

A detailed description of the product properties and the special motor characteristics can be found in the following Function Manual: 109749781.

A configuration manual is available for segment motors SIMOTICS T-1FW68 with SINAMICS S120 and  Technology Extension SERVCOUP: 109742105.


Preconditions / dependencies

The Technology Extension SERVCOUP V1.2 can be used for the following devices:

  • SINAMICS S120 (CU320-2)
  • SINUMERIK Integrated
  • SIMOTION Integrated

The Technology Extension SERVCOUP V1.2 is supported by the following SINAMICS firmware versions:

  • As of 4.7 (corresponds to SINUMERIK V4.7)
  • As of 4.6 HF13 (no SINUMERIK version available)
  • As of 4.5 HF21 (corresponds to SINUMERIK V4.5 SP3)

The SERVCOUP can be activated on the SERVO drive object, where it is also parameterized.

The use of SERVCOUP requires a license. The Runtime license can be ordered via article number 6SL3077-0AA00-8AB0. The license does not depend on the SERVCOUP version.

The current SERVCOUP version V1.2 is available for download at 109748370.


Supplementary conditions and functional restrictions

There are no supplementary conditions and functional restrictions for SERVCOUP.


Ordering data

The Runtime license for the licensing of the Technology Extension SERVCOUP can be ordered via article number
6SL3077-0AA00-8AB0.

Security information
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