Configuring SIMOTION D425-2 DP/PN with SINAMICS V90PN

Overview

The SIMOTION D425-2 is a compact motion controller in the SIMOTION D platform, designed for high-performance synchronized axis control, single-axis positioning, and complex motion sequences on packaging, converting, and assembly machinery. Two MLFB variants are commonly confused during product selection: the 6AU1425-2AA00-0AA0 (D425-2 DP, PROFIBUS only) and the 6AU1425-2AD00-0AA0 (D425-2 DP/PN, PROFIBUS + PROFINET). Only the DP/PN variant can natively control a SINAMICS V90PN servo drive, because the V90PN communicates exclusively over PROFINET IO using the PROFIdrive profile. Choosing the wrong order code is the single most common reason a SIMOTION project fails to recognize the V90 drive in the device catalog.

This reference covers the correct variant selection, hardware integration of the SINAMICS V90PN, GSDML installation in SIMOTION SCOUT (or TIA Portal with the SIMOTION extension), telegram configuration, axis creation, and verification of the PROFINET data exchange. It also documents the wiring, commissioning tool requirements (SINAMICS V-Assistant), and the DRIVE-CLiQ alternative path using SINAMICS S120 modules.

Prerequisites

• SIMOTION D425-2 DP/PN, MLFB 6AU1425-2AD00-0AA0 (firmware V5.x or later recommended)
• SIMOTION SCOUT V5.x (SCOUT Standalone) or TIA Portal V17/V18 with the SIMOTION option package installed
• SINAMICS V90 PN servo drive (firmware V1.04 or later for full PROFIdrive conformance)
• 1FL6 SIMOTICS servo motor sized to the mechanical axis (matched to drive via V-Assistant)
• SINAMICS V-Assistant commissioning tool (latest release on the Siemens Support download portal)
• STEP 7 / SCOUT hardware catalog with the current V90PN GSDML file (e.g. GSDML-V2.3-Siemens-Sinamics_V90_PN-…xml)
• PROFINET cable (Cat 6 SF/UTP minimum, industrial-grade), PROFINET plug connectors (RJ45 or M12 D-coded)
• 24 VDC control power supply and a separate 24 VDC for the V90 logic; observe grounding and shielding per Siemens EMC guidelines

SIMOTION D425-2 Variant Comparison

Both variants share identical motion performance; the difference is purely communication. The PROFINET ports on the D425-2 DP/PN operate as PROFINET IO controllers (IRT-capable), which is required for the V90PN's PROFIdrive telegrams with isochronous mode.

Selecting the Correct Order Code

1. Open the Siemens TIA Selection Tool or the SIMOTION product configurator on the Siemens Industry Mall.
2. Filter the SIMOTION D family for the 425-2 performance class (suitable for up to 16 axes).
3. If the project includes V90PN, SINAMICS S210, or any other PROFINET-only drive, select the DP/PN variant. The MLFB will resolve to 6AU1425-2AD00-0AA0.
4. If the project is a greenfield PROFINET cell but you still need PROFIBUS for legacy racks, the DP/PN variant is the correct choice because it carries both interfaces.
5. Cross-check the configuration against the SIMOTION catalog PDF (ID 109479653 on Siemens Industry Online Support) to confirm supported add-ons such as the CBE30 PROFINET option board or terminal modules (TM15, TM31, TM41).

Hardware Wiring and Topology

Wire the SIMOTION D425-2 DP/PN as the PROFINET IO controller and the V90PN as a PROFINET IO device. The simplest topology is a linear ring on the controller's onboard PROFINET ports:

[SIMOTION D425-2 DP/PN]
      Port 1 (X150 P1) ---- PROFINET ---- [V90PN #1 X150 P1]
                                       [V90PN #1 X150 P2] ---- [V90PN #2 X150 P1]
                                                                    ...
      Port 2 (X150 P2) ---- (return ring, last V90 X150 P2)

• Use industrial-grade Cat 6 cabling (SF/UTP or S/FTP) with a maximum segment length of 100 m per hop.
• For applications that require IRT isochronous mode (cycle times ≤ 1 ms), set the PROFINET device ports and switch to IRT and assign the same synchronization domain on the SIMOTION side.
• Ground the cable shield at the cabinet entry using EMC-compatible shield clamps.
• Provide a separate 24 VDC supply for the V90 logic (X24) and a separate bus supply (X1.4) for the holding brake if the motor has one.

Refer to the SIMOTION D4x5-2 Equipment Manual for the X150 pin assignment and to the SINAMICS V90 PN Operating Instructions for the drive-side terminal layout.

Installing the V90PN GSDML and Configuring PROFINET

1. Download the current V90PN GSDML file from the Siemens Industry Online Support (search for "SINAMICS V90 PN GSD"). The file name follows the convention GSDML-Vx.x-Siemens-Sinamics_V90_PN-YYYYMMDD.xml.
2. Launch SIMOTION SCOUT, open the project, and switch to the HW Config view (this is shared with STEP 7).
3. Choose Options > Install GSD File and select the downloaded V90PN GSDML.
4. Insert the SIMOTION D425-2 DP/PN from the catalog into the rack. The PROFINET interface appears as X150.
5. Drag the SINAMICS V90 PN device from the catalog onto X150. Assign it a unique device name and IP address (PROFINET naming convention: v90pn1, v90pn2, etc.).
6. Open the slot configuration of the V90PN and select the required PROFIdrive telegram. Standard telegrams supported by the V90PN are:

   Telegram	Direction	Use case
   Standard Telegram 1	Speed control, 2-word control / 2-word status	Basic speed setpoint with no encoder on PROFINET
   Standard Telegram 3	Speed control with 1 encoder on PROFINET	Position-controlled drive, encoder feedback over PROFINET
   Standard Telegram 5	Speed control with 2 encoders on PROFINET	Direct position control with extended feedback
   SIEMENS Telegram 102	Speed + torque, 4-word control / 4-word status	Motion control applications in SIMOTION
   SIEMENS Telegram 105	Positioning with DSC (Dynamic Servo Control)	Recommended for SIMOTION axes with high dynamic response

   For SIMOTION, telegram 105 with DSC is the typical choice; it provides position setpoints directly to the drive's position controller and minimizes bus lag.
7. Compile and download the hardware configuration. Confirm the V90PN shows a steady green Link LED on both PROFINET ports.

Creating the SIMOTION Axis

1. Switch from HW Config back to SCOUT and open the project tree.
2. Insert a new TO (Technology Object) Axis under the SIMOTION device. Choose Axis > Speed Controlled Axis or Positioning Axis depending on the application. For most V90PN motion control jobs, select Positioning Axis.
3. In the axis wizard, set the drive assignment to PROFINET IO and select the V90PN telegram slot (e.g. telegram 105).
4. Configure the mechanical axis data: load gear, position resolution, maximum velocity, maximum acceleration, jerk limits, and software limit switches.
5. Map the axis to the SIMOTION program by calling _enableAxis(), _pos(), or _move() in the motion task.
6. Save, compile, and download the SCOUT project to the D425-2.

Commissioning the V90 with SINAMICS V-Assistant

The SINAMICS V90PN must be commissioned separately through the V-Assistant tool before the SIMOTION can take control. V-Assistant configures the drive-side parameters that cannot be set from SCOUT:

• p29000 - Motor selection (auto-detected if the connected 1FL6 motor ID is correct)
• p29001 - Reverse the motor rotation direction if the mechanical layout requires it
• p29002 - Reference switch configuration
• p29003 - PTO (pulse train) or PROFINET telegram selection - confirm the drive is set to the same telegram you configured in HW Config (typically 105 for SIMOTION)
• p29004 - Control mode: select PROFINET controlled mode with PROFIdrive telegrams
• p29006 - Selection of basic or extended PROFIdrive telegram set
• Encoder resolution (p29020 / p29021) and the brake control parameters (p29050 area)

1. Connect the PC to the V90PN's service port (X12) using a USB or RJ45 cable, depending on the drive variant.
2. Launch V-Assistant and perform an online scan. The drive should appear with its current firmware and MLFB.
3. Run the configuration wizard; enter motor code, encoder type, and the desired telegram. Save to the drive's non-volatile memory.
4. Run a manual jog to confirm the motor rotates in the expected direction and reports no faults.
5. Switch the drive to PROFINET control source and confirm the drive accepts the cyclic setpoints from the SIMOTION D425-2 DP/PN.

Verification and Diagnostics

• PROFINET topology check: Open TIA Portal / SCOUT Topology Editor and verify that every V90PN shows a green link status and no diagnostic interrupt.
• Drive status: In SCOUT, open the diagnostic buffer of the SIMOTION device. Look for entry type "Drive: telegram set". A 0x0000 status confirms the cyclic PROFINET exchange is active.
• Axis test motion: Issue a small jog command from the SCOUT axis control panel. Verify the position actual value tracks the position setpoint within the configured tolerance.
• V90 fault codes: If the drive drops off PROFINET (status word bit 3), read V90 fault numbers via parameter r0947[0..19] or in V-Assistant. Common codes include F7901 (motor blocked), F30001 (power unit overcurrent), F31110 (encoder signal lost). Each is mapped in the SINAMICS V90 PN List Manual.
• IRT sync quality: In SCOUT open PROFINET Diagnostics > Synchronization Domain. The jitter should be < 1 µs for IRT applications.

Alternative: DRIVE-CLiQ Path with SINAMICS S120

If the project calls for higher servo dynamics, multi-axis synchronous operation, or encoder feedback with DRIVE-CLiQ, replace the V90PN with a SINAMICS S120 drive line (Smart Line Module, Motor Modules) connected to one of the four DRIVE-CLiQ ports on the SIMOTION D425-2. The D425-2 auto-detects the connected SINAMics S120 modules during startup; no GSDML is needed. This path is the recommended choice when:

• The required cycle time is below 250 µs.
• The application uses cross-PDO synchronous axes (gear, cam).
• The motor has a DRIVE-CLiQ encoder interface (e.g. 1FK7, 1FT7, 1PH8).

Configuration of an S120 axis follows the standard SCOUT Insert Axis > Drive (SINAMICS S120) workflow; the drive is reached directly through DRIVE-CLiQ without a separate PROFINET slot.

Troubleshooting Matrix

Spare Parts and Catalog References

• SIMOTION D425-2 DP/PN: 6AU1425-2AD00-0AA0
• SIMOTION D425-2 DP (no PROFINET): 6AU1425-2AA00-0AA0
• SIMOTION SCOUT engineering software: separate license dongle or TIA Portal with SIMOTION option package
• SINAMICS V90 PN, 200 V / 400 V class: 6SL3210-5FB10-1U…, 6SL3210-5FB10-2U…
• SINAMICS V-Assistant (commissioning tool, free download from Siemens SIOS)
• Optional CBE30 PROFINET board for additional PROFINET ports: 6FC5312-0FX00-0AA0
• Optional terminal modules: TM15 (6FC5548-0AA00-0AA0), TM31 (6FC5548-0AA01-0AA0)

Field-Commissioning Checklist

1. Verify the SIMOTION D425-2 variant by reading the MLFB on the front label; confirm it ends in -2AD00-0AA0.
2. Update the D425-2 firmware to the latest V5.x release using the SIMOTION USB card or SCOUT online functions.
3. Install the V90PN GSDML into SCOUT and confirm the catalog entry appears under PROFINET IO > Drives > SINAMICS.
4. Pre-configure the V90 with V-Assistant: motor ID, telegram number, control source = PROFINET, save to RAM and EEPROM.
5. Wire the PROFINET line and assign device names with PRONETA before integrating into SCOUT.
6. Download the SCOUT hardware and software configuration; perform a controlled axis jog in SCOUT axis control panel.
7. Archive the project to the SIMOTION CF card for cold-restart survival.