VFD vs Servo Drive: Key Differences
A side-by-side comparison of VFD and servo drive motor type, feedback, dynamic response, overload rating, cost, and applications for industrial engineers.
- Part number
- 6AU1425-2AD00-0AA0
- Model no
- D425-2 DP/PN
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· From Türkiye
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- EAC
SIMOTION D425Siemens 6AU1425-2AD00-0AA0 SIMOTION D425-2 DP/PN 16-Axis Motion Controller
SIMOTION D425-2 DP/PN Drive-based motion controller - up to 16 axes, PROFINET/PROFIBUS, 24V DC.
Description
About the D425-2 DP/PN
About the D425-2 DP/PN
The Siemens 6AU1425-2AD00-0AA0 SIMOTION D425-2 DP/PN is a BASIC-performance, Drive-based motion controller that manages up to 16 axes total, including 6 axes of integrated servo or vector drive control, or 12 in V/f mode. It integrates 12 digital inputs, 16 configurable digital I/Os, 4 DRIVE-CLiQ ports, dual PROFIBUS and PROFINET interfaces, and ships with a dual fan/battery module.
Selection Notes
This D425-2 variant is BASIC performance, so it fits machines needing up to 16 coordinated axes with millisecond-class PROFIBUS or sub-millisecond PROFINET cycle times rather than the highest-axis-count SIMOTION D4x5 models. Because drive control is integrated, built on SINAMICS S120 CU320-2 firmware, the controller and up to 6 servo axes run in the same unit without a separate SIMOTION-plus-external-drive combination, which matters when panel space or cabling budget is tight. The 16 configurable digital I/Os can each be set as DI, DO, probe input, or cam output, so one module covers both process I/O and high-speed cam-switching duties that would otherwise need a dedicated cam output card.
Applications
Coordinated multi-axis motion control in packaging, printing, and material-handling machines built on SINAMICS S120 drives with PROFINET or PROFIBUS fieldbus.
Specification
Full specification
General 4
| product brand name | SIMOTION |
|---|---|
| product type designation | D425-2 DP/PN |
| Performance class for motion control system | BASIC Performance |
| Version of the motion control system | Multiple-axis system |
PLC and motion control performance 5
| number of axes / maximum | 16 |
|---|---|
| Minimum PROFIBUS cycle clock | 1 ms |
| Minimum PROFINET send cycle clock | 0.25 ms |
| Minimum interpolator cycle clock | 0.5 ms |
| Minimum servo cycle clock | 0.5 ms |
Integrated drive control / header 4
| Maximum number of axes for integrated drive control: servo | 6 |
|---|---|
| Maximum number of axes for integrated drive control: vector | 6 |
| Maximum number of axes for integrated drive control: V/f | 12 |
| Maximum number of axes for integrated drive control: note | Alternative control modes; drive control based on SINAMICS S120 CU320-2, firmware version V4.x/V5.x |
Show all 101 specifications ↓ Show less ↑88 more values in Identification, Memory, Communication, General technical data, Digital inputs / header, Digital inputs/outputs / header, If used as an input / header, Additional technical data, Logistics.
Identification 6
| Part number | 6AU1425-2AD00-0AA0 |
|---|---|
| Type designation | D425-2 DP/PN |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
Memory 5
| RAM (work memory) | 78 Mbyte |
|---|---|
| Additional RAM work memory for Java applications | 20 Mbyte |
| RAM disk (load memory) | 38 Mbyte |
| Retentive memory | 364 kbyte |
| Persistent memory (user data on CF) | 1.5 Gbyte |
Communication 6
| Interfaces: DRIVE-CLiQ | 4 |
|---|---|
| Interfaces: USB | 2 |
| Interfaces: Industrial Ethernet | 2 |
| Interfaces: PROFIBUS | 2 |
| Interfaces: note | Equidistant and isochronous; Can be configured as master or slave |
| Interfaces: PROFINET | 1 |
General technical data 23
| Fan | Double fan/battery module included in scope of delivery |
|---|---|
| DC supply voltage: rated value | 24 V |
| DC supply voltage: minimum | 20.4 V |
| DC supply voltage: maximum | 28.8 V |
| consumed current / typical | 1 000 mA |
| note | with no load on inputs/outputs, no 24 V supply via DRIVE-CLiQ and PROFIBUS interface |
| Making current, typ. | 5 A |
| Power loss, typ. | 24 W |
| Ambient temperature, during: long-term storage | -25 ... +55 °C |
| Ambient temperature, during: transport | -40 ... +70 °C |
| Ambient temperature, during: operation | 0 ... 55 °C |
| Ambient temperature, during: note | Maximum installation altitude 4000 m (13124 ft) above sea level. Above an altitude of 2000 m (6562 ft), the maximum ambient temperature decreases by 7 °C (12.6 °F) per 1000 m (3281 ft). |
| Relative humidity: during operation | 5 ... 95 % |
| Relative humidity: without condensation, tested acc. to IEC 60068-2-38 | Wert fehlt |
| Product property / Conformal coating | No |
| Resistance: to biologically active substances, / conformity acc. to EN 60721-3-3 | No |
| Resistance: to chemically active substances, / conformity acc. to EN 60721-3-3 | No |
| Air pressure | 620 ... 1 060 hPa |
| Degree of protection | IP20 / UL open type |
| height | 380 mm |
| width | 50 mm |
| depth | 270 mm |
| Depth / Note | When the spacer is removed 230 mm (9.05 in) deep |
Digital inputs / header 9
| number of digital inputs | 12 |
|---|---|
| DC input voltage: rated value | 24 V |
| DC input voltage: for signal "1" | 15 ... 30 V |
| DC input voltage: for signal "0" | -3 ... +5 V |
| Electrical isolation | Yes |
| note | Yes, in groups of 6 |
| Current consumption for "1" signal level, typ. | 9 mA |
| Input delay time for: signal "0" → "1", typ. | 50 µs |
| Input delay time for: signal "1" → "0", typ. | 150 µs |
Digital inputs/outputs / header 2
| Number of digital I/Os | 16 |
|---|---|
| Parameterization possibility of the digital I/Os | can be parameterized - as DI - as DO - as probe input (max. 16) - as cam output (max. 8) |
If used as an input / header 25
| DC input voltage: rated value | 24 V |
|---|---|
| DC input voltage: for signal "1" | 15 ... 30 V |
| DC input voltage: for signal "0" | -3 ... +5 V |
| Electrical isolation | No |
| Current consumption for "1" signal level, typ. | 9 mA |
| Input delay time for: signal "0" → "1", typ. | 5 µs |
| Input delay time for: signal "1" → "0", typ. | 50 µs |
| Measuring input / reproducibility | 5 µs |
| Measuring input / resolution | 1 µs |
| If used as an output / header Load voltage: rated value | 24 V |
| If used as an output / header Load voltage: minimum | 20.4 V |
| If used as an output / header Load voltage: maximum | 28.8 V |
| Current carrying capacity for each output, max. | 500 mA |
| Leakage current, max. | 2 mA |
| Output delay for: signal "0" → "1", typ. | 150 µs |
| Output delay for: signal "0" → "1", max. | 400 µs |
| Output delay for: signal "1" → "0", typ. | 75 µs |
| Output delay for: signal "1" → "0", max. | 150 µs |
| Output delay for: note | Data for Vcc = 24 V; load 48 Ohm; "1" = 90 % VOut, "0" = 10 % VOut |
| Cam output: reproducibility | 10 µs |
| Cam output: resolution | 1 µs |
| Switching frequency of the outputs for: resistive load, max. | 4 kHz |
| Switching frequency of the outputs for: inductive load, max. | 2 Hz |
| Switching frequency of the outputs for: lamp load, max. | 11 Hz |
| Short-circuit protection | Yes |
Additional technical data 8
| Back-up of non-volatile data: of retentive data | unlimited buffer duration |
|---|---|
| Back-up of non-volatile data: of real-time clock, min. | 4 d |
| Back-up of non-volatile data: note | longer buffer duration of the real-time clock using a battery inserted in the double fan/battery module |
| Approvals: USA | cULus |
| Approvals: Canada | cULus |
| Approvals: Australia | RCM (formerly C-Tick) |
| Approvals: Korea | KCC |
| Approvals: Russia, Belarus and Kazakhstan | EAC |
Logistics 4
| Shipping weight | 4.2 kg |
|---|---|
| Ships from | Türkiye |
| Dispatch | 16 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 01 Nov 2026
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- EAC
Quick answers
Questions about the D425-2 DP/PN
What is the rated current of D425-2 DP/PN?
The rated current of D425-2 DP/PN is 1 A.
Which supply voltage is D425-2 DP/PN rated for?
The rated operational voltage of D425-2 DP/PN is 24 V AC.
What is the HS code of D425-2 DP/PN for customs?
The tariff (HS) code on file for D425-2 DP/PN is 85371091.
Where does D425-2 DP/PN ship from, and how fast?
D425-2 DP/PN ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
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Series
Siemens SIMOTION D425
- Brand
- Siemens
- Series
- SIMOTION D425
