siemens
Siemens SINAMICS S120 Servo Drive System
Model: 6SL3120-2TE21-8AD0
4-hour response · Pricing in SAR · Delivery across all KSA regions
6SL3120-2TE21-8AD0 — Siemens SINAMICS S120 Servo Drive System
The Siemens SINAMICS S120 is Siemens' flagship high-performance servo and vector drive system for precision motion control, machine tool, printing, packaging, and multi-axis coordinated automation applications. Built on a common DC bus topology where multiple Motor Modules share a single Active Line Module, the S120 recovers regenerative braking energy from decelerating axes and redistributes it to accelerating axes through the common bus — eliminating the energy waste that individual drive systems dissipate as heat. In multi-axis packaging machines and printing presses where multiple drives constantly accelerate and decelerate, this energy sharing reduces total power consumption by 15–30% compared to equivalent individual drives.
The S120's core performance advantage is its current loop bandwidth of less than 2 ms and speed control bandwidth exceeding 700 Hz — figures that define the system's responsiveness to load disturbances and the precision of coordinated multi-axis motion. PROFINET IRT (Isochronous Real-Time) communication synchronises axis positions across the entire machine with a cycle time as low as 250 μs, enabling precise electronic gearing and cam profiles that printing, die-cutting, and labelling machines rely upon for dimensional accuracy. Safety functions certified to SIL 3 / PLe include Safe Torque Off (STO), Safe Stop 1 and 2 (SS1/SS2), Safe Operating Stop (SOS), and Safely Limited Speed (SLS) — a comprehensive safety library that allows machine designers to achieve high safety integrity without external safety PLC hardware.
In Saudi Arabia, the SINAMICS S120 addresses the Kingdom's growing advanced manufacturing sector — Aramco's localisation (IKTVA) programme, SABIC's specialty compounding facilities, and the expanding pharmaceutical and medical device manufacturing cluster developing under Vision 2030. Precision printing operations in Riyadh and Jeddah specify S120 for register control accuracy; automotive component manufacturers in the new industrial zones near Riyadh select it for multi-axis machining centre drives; and food and beverage OEMs building export-quality packaging lines use S120 to meet the tight mechanical tolerances demanded by international buyers.
Razz Middle East engineers complete S120 multi-axis drive systems from specification through commissioning, including Drive Object configuration in TIA Portal SCOUT, motor-encoder matching, and Safety Integrated function validation. We supply booksize and cabinet-mount S120 systems and provide on-site motion commissioning across Saudi Arabia.
Technical Specifications
Full specifications for the 6SL3120-2TE21-8AD0
- Power Range
- 0.12–4500 kW
- Voltage
- 380–480 V / 500–690 V AC
- Control Modes
- Servo, Vector, V/f
- DC Bus
- Common Active Line Module
- Current Loop
- <2 ms bandwidth
- Communication
- PROFINET IRT (250 μs cycle)
- Safety
- STO, SS1, SS2, SOS, SLS (SIL 3 / PLe)
- Encoder Interfaces
- EnDat 2.2, SSI, HTL/TTL, resolver, DRIVE-CLiQ
Key Features & Benefits
- Common DC bus with Active Line Module enables regenerative energy sharing between decelerating and accelerating axes, reducing total system energy consumption by 15–30% in multi-axis packaging and printing machines versus individual drives.
- Current loop bandwidth of less than 2 ms and speed control bandwidth exceeding 700 Hz delivers the dynamic stiffness required for high-precision printing register control, machining centre contouring, and die-cut registration applications.
- PROFINET IRT isochronous communication with cycle times down to 250 μs synchronises multiple axis positions across a machine with deterministic precision, enabling electronic gearing and cam profiles without dedicated motion bus hardware.
- Safety Integrated library certified to SIL 3 / PLe includes STO, SS1, SS2, SOS, and SLS functions that allow machine designers to achieve high safety integrity ratings without adding an external safety PLC to the control architecture.
- DRIVE-CLiQ digital interface between drive and motor eliminates analog signal noise in encoder feedback, providing absolute position data with immunity to electromagnetic interference in the harsh environments of petrochemical and manufacturing plants.
- Booksize and cabinet-mount form factors cover applications from sub-kilowatt servo axes in compact machine tools to megawatt-class multi-axis drives in large industrial presses and extrusion lines.
- TIA Portal SCOUT engineering integration allows S120 drive commissioning within the same Siemens automation engineering environment used for S7-1500 PLCs and SIMATIC HMI panels, reducing engineering tool proliferation on complex projects.
Industrial Applications in Saudi Arabia
- Precision printing machine main and register drives at Saudi printing companies in Riyadh and Jeddah, where PROFINET IRT synchronisation maintains print register accuracy to within ±0.1 mm across multi-unit web press configurations.
- Packaging line multi-axis servo drives for Saudi food and pharmaceutical manufacturers, where the common DC bus energy recovery reduces energy costs and the SIL 3 safety functions satisfy EU market machine safety export requirements.
- CNC machining centre main spindle and axis drives at precision parts manufacturers supplying ARAMCO and Saudi Aerospace & Defence projects, where servo bandwidth exceeding 700 Hz maintains surface finish tolerances.
- Robotics and gantry handling system drives in automotive component manufacturing facilities in the King Abdullah Economic City, where S120 PROFINET IRT provides the deterministic communication required for coordinated multi-robot cells.
- Extrusion line main drive and haul-off drive systems at Saudi polymer processing facilities in Jubail, where torque accuracy and common DC bus operation maintain product dimensional consistency throughout the line.
- Die-cutting and converting machine servo drives for Saudi packaging OEMs, where electronic cam profiles replace mechanical cams to deliver flexible repeat-length changes without tooling modifications.
- Pharmaceutical tablet press and filling machine servo drives at Saudi healthcare manufacturing facilities developing under Vision 2030, where SIL 3 safety and PROFINET IRT enable GMP-compliant machine validation.
Industrial Supplier in Saudi Arabia
Get a Quote for the Siemens SINAMICS S120 Servo Drive System
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Frequently Asked Questions — 6SL3120-2TE21-8AD0
Common questions from buyers in Saudi Arabia and the GCC