SIMOTION D Control Units: D410‑2, D4x5‑2 (4 performance classes)

SIMOTION D is a compact, drive-based version of SIMOTION based on the SINAMICS S120 drives family.

The SIMOTION D Control Units are available in the following variants:

  • SIMOTION D410-2 are compact Control Units for single-axis applications with multi-axis option. The Control Units are available in variants D410-2 DP and D410-2 DP/PN and are snapped onto the SINAMICS S120 Power Modules in blocksize format.
  • SIMOTION D4x5-2 are Control Units for multi-axis applications in the SINAMICS S120 booksize format and are available in the following performance variants:
    • SIMOTION D425-2 DP and D425-2 DP/PN Control Units
      (BASIC performance) for up to 16 axes
    • SIMOTION D435-2 DP and D435-2 DP/PN Control Units
      (STANDARD Performance) for up to 32 axes
    • SIMOTION D445-2 DP/PN Control Unit
      (HIGH performance) for up to 64 axes
    • SIMOTION D455-2 DP/PN Control Unit
      (ULTRA-HIGH performance) for up to 128 axes or applications with very short control cycles

This fine scalability ensures a quick response to changing requirements in automation without having to change the system.

System concept

With SIMOTION D, the PLC, the Motion Control and technology functions as well as the SINAMICS S120 drive software run on a shared control hardware. The IEC 61131-3-compliant PLC integrated in SIMOTION D means that the system is not just capable of controlling sequences of motions, but the entire machine can also be controlled with a single compact unit.

Depending on the SIMOTION D platform, HMI devices can be operated on the PROFINET, Ethernet or PROFIBUS interfaces for operator control and monitoring. Functions such as remote maintenance, diagnostics and teleservice can also be used via these interfaces.

Display and diagnostics

  • LEDs to display operating states and errors
  • 3 measuring sockets
  • Service selector switch and mode selector
  • Diagnostics button

Onboard I/Os

  • 12 digital inputs
  • 16 digital inputs/outputs (max. 16 as high-speed measuring inputs, max. 8 as high-speed cam outputs)


  • 6 × DRIVE-CLiQ (4 × DRIVE-CLiQ for D425-2)
  • 2 × Industrial Ethernet (3 × Industrial Ethernet for D4x5-2 DP), of which one interface easily accessible on the module front
    (1 interface with 3 ports, with D4x5-2 DP/PN only)
  • 2 × USB

Data backup

  • 1 slot for SIMOTION CompactFlash card

Additional interfaces

  • Terminals for 24 V electronics power supply
Option Boards

With the TB30 Terminal Board, the SIMOTION D4x5-2 Control Units can be extended with 4 digital inputs, 4 digital outputs, 2 analog inputs and 2 analog outputs. The TB30 Terminal Board is plugged into the option slot on the Control Unit.

Using the CBE30-2 Communication Board for PROFINET IO, it is possible to equip the SIMOTION D4x5-2 DP/PN Control Units with a second PROFINET interface with 4 ports..

Applications for a second PROFINET interface:

  • 2 separate networks (e.g. one local and one higher-level network)
  • Address space can be doubled to 2 × 6 KB
  • Maximum number of connectable devices can be doubled to 2 × 64
  • Separation into a high-speed and a slow bus system/execution system in order to make efficient use of the controller's capacity (applies only to SIMOTION D435-2 DP/PN, D445-2 DP/PN and D455-2 DP/PN)
    • PROFINET onboard: SERVOFast and IPOFast


The CBE30-2 cannot be used in SIMOTION D4x5 2 DP Control Units. If the CBE30-2 is used without SERVOFast and IPOFast, then both PROFINET interfaces are assigned to SERVO/IPO/IPO2.


The SIMOTION D4x5‑2 Control Units can be mounted in the control cabinet in one of three ways:

  • Mounting with spacers
  • Mounting without spacers (D425-2 and D435-2 only)
  • Mounting without spacers (external cooling, D445-2 and D455-2 only)

With external air cooling, the cooling fins of the D445-2/D455-2 Control Unit are outside of the control cabinet. A seal (option) is available so that the Control Unit can be hermetically mounted in the rear cabinet panel.

The SIMOTION D4x5-2 Control Units come with pre-installed spacers. These can be removed if necessary.

Data storage/data backup

The SIMOTION D4x5-2 Control Units store the retentive process data permanently in a manner that requires no maintenance (refer to technical specifications for memory size).

The real-time clock is backed up for several days via a SuperCap. The backup time can be extended via a battery in the double fan/battery module.

The double fan/battery module incl. battery is contained in the scope of supply of the SIMOTION D4x5-2.

The runtime software, user data and user programs are stored retentively on the CompactFlash Card (CF). The retentive process data of the Control Unit can also be stored on this CompactFlash card via system command, e.g. if spare parts are required.