The 131Z3169 is Danfoss’s VLT® AutomationDrive FC-302 variable frequency drive rated at 5.5 kW from a three-phase 400 V supply — a high-performance industrial inverter combining Class C1 EMC compliance, integrated PROFIBUS DP fieldbus communication, built-in SyncPos positioning functionality, and a front-panel keypad operator interface in a compact IP20 enclosure, making it the most fully specified 5.5 kW FC-302 variant for demanding industrial automation and coordinated motion applications. In stock at Atlantech Drives. Request your quote within 24-48 hours with worldwide shipping and 12-month warranty.
What Is the 131Z3169?
The 131Z3169 is a Danfoss VLT® AutomationDrive FC-302 series AC variable frequency drive providing 5.5 kW continuous rated output to three-phase asynchronous, permanent magnet, and synchronous reluctance motors from a 380–480 VAC three-phase input. The FC-302 is the high-performance variant of the VLT® AutomationDrive range — distinguished from the FC-301 by its support for closed-loop flux vector motor control (VVC+ flux), encoder feedback for precise speed and torque regulation, terminal 29 as programmable digital input or output, and the full range of FC-302 option card compatibility.
The 131Z3169 configuration is defined by its full part string FC-302P5K5T5E20H2BXXXXXSXXXXA0BXC4XXXDX, which encodes the key configuration options: 5.5 kW power class, T5 three-phase 380–480 V input, E20 IP20 enclosure, H2 Class C1 EMC filter, B keypad (LCP) included, C4 PROFIBUS DP communication option, and SyncPos (synchronised positioning) software function enabled. The Class C1 EMC filter — the most stringent EMC classification available — suppresses conducted and radiated emissions to levels suitable for installation in residential, commercial, and light-industrial environments without additional external EMC filtering hardware, simplifying panel design and CE compliance documentation.
Key Technical Specifications
- Part Number: 131Z3169 (FC-302P5K5T5E20H2BXXXXXSXXXXA0BXC4XXXDX)
- Rated Output Power: 5.5 kW
- Input Voltage: Three-phase 380–480 VAC, 50/60 Hz
- Output Current (normal duty): 12.5 A at 400 V
- Output Frequency Range: 0–590 Hz
- Enclosure: IP20
- Control Principle: VVC+ (Voltage Vector Control), Flux Vector (closed-loop with encoder)
- EMC Filter: Class C1 (EN 61800-3, Category C1 — residential and commercial environments)
- Fieldbus Communication: PROFIBUS DP (integrated, option C4)
- Operator Panel: LCP (Local Control Panel / keypad) included
- Software Function: SyncPos (synchronised positioning — electronic gearing and cam)
- Digital Inputs: 6 programmable (terminals 18, 19, 27, 29, 32, 33)
- Analog Inputs: 2 (terminals 53 and 54 — voltage or current selectable)
- Relay Outputs: 2 (Form C, 240 VAC / 2 A)
- Safe Torque Off (STO): Terminal 37, IEC 61800-5-2 compliant
- Operating Temperature: -10°C to +50°C (with derating above 40°C at full load)
- Dimensions (W × H × D): 90 mm × 200 mm × 200 mm (A2 frame)
- Weight: Approx. 2.8 kg
Architecture & Design Overview
The FC-302’s VVC+ (Voltage Vector Control Plus) control principle continuously optimises the voltage vector applied to the motor windings based on measured motor current and speed feedback, providing superior torque accuracy and motor efficiency compared to conventional V/F control — without requiring a shaft encoder for standard speed control applications. When the optional encoder feedback is connected via the MCB 102 or MCB 103 encoder option card, the FC-302 transitions to full closed-loop flux vector control, enabling torque regulation accuracy of ±2% of rated torque at all speeds including standstill for demanding servo-like positioning and tension control applications.
The integrated PROFIBUS DP communication (C4 option) in the 131Z3169 implements PROFIBUS DP-V1 protocol, enabling the drive to participate in PROFIBUS networks as a DP slave — receiving speed reference, control word, and parameter read/write commands from a PROFIBUS master PLC (Siemens S7, GE Fanuc, Schneider Premium, or any DP-V1 compatible controller) via the standard PROFIBUS telegram structure.
The SyncPos software function enables electronic gearing and electronic cam positioning — the 131Z3169 can synchronise its motor shaft position to a virtual or physical master encoder signal via the encoder option card, following the master’s position profile with a programmable gear ratio or cam table. This SyncPos capability allows the 131Z3169 to replace mechanical gearboxes and cam mechanisms in printing, packaging, and converting machinery, providing electronically adjustable phase and ratio without mechanical adjustment downtime.
Typical Industrial Applications
The 131Z3169’s combination of PROFIBUS DP, SyncPos, and Class C1 EMC addresses a specific segment of demanding industrial drive applications where all three capabilities are simultaneously required. In web-fed printing and converting machines, the 131Z3169 controls impression cylinder drives, infeed nip drives, and tension zone drives that must maintain precise phase synchronisation with the main machine axis — the SyncPos electronic gearing maintains register accuracy across speed changes without the phase drift that occurs with independent drive systems.
Pharmaceutical packaging lines with PROFIBUS-integrated machine control use the 131Z3169 for blister pack forming station drives, where the Class C1 EMC filter ensures the drive does not generate electromagnetic interference that could affect the sensitive product inspection vision systems or the pharmaceutical weighing equipment operating near the packaging line. Food and beverage production lines with Siemens S7-based PROFIBUS control networks integrate the 131Z3169 for conveyor accumulation drives, filling pump drives, and sealing jaw drives — the PROFIBUS DP integration enables the S7 PLC to command speed, read actual current and torque, and access fault diagnostics from the 131Z3169 using standard PROFIBUS DPV1 acyclic parameter access without additional hardware.
In textile machinery, the 131Z3169’s SyncPos electronic cam function replaces the mechanical cam boxes traditionally used to generate the reciprocating traverse motion of yarn winding traverses — the electronic cam table is programmed in the FC-302’s parameter set and can be modified via PROFIBUS while the machine runs, enabling yarn package geometry changes without mechanical cam replacement.
Expert Tips
When commissioning the 131Z3169 on a PROFIBUS DP network, install the FC-302 GSD file (available from Danfoss’s download portal) in the PROFIBUS master’s hardware configuration tool before adding the 131Z3169 to the network segment — without the GSD file, the master cannot recognise the drive’s telegram structure and the network will report configuration errors.
Danfoss provides GSD files for each FC-302 firmware version; verify the GSD file version matches the 131Z3169’s installed firmware version (readable from the LCP keypad in parameter 15-43). For SyncPos applications, the master encoder signal quality is critical — use a high-resolution encoder (1,024 PPR minimum, differential RS-422A output) for the master position reference to the FC-302’s encoder option card input, and verify the encoder cable shield is connected to the drive’s PE terminal at the drive end only to prevent ground loop interference on the encoder signal.
When operating the 131Z3169 in environments near the Class C1 EMC filter’s rated ambient temperature (50°C), verify that the inverter’s actual output current does not exceed the derated continuous rating — at 50°C, the 131Z3169’s maximum continuous output current is derated from 12.5 A to approximately 10.5 A.
Monitor the drive’s actual output current via the LCP display (parameter 16-14) during the first week of production operation to confirm the thermal margin is adequate. For PROFIBUS telegram selection, use Danfoss Standard Telegram 1 (PPO Type 3 or 4) as the starting point for most FC-302 PROFIBUS integrations — this provides speed reference, control word, actual speed, and status word in a compact 4-word telegram that covers the majority of variable speed drive control requirements without the overhead of extended parameter telegrams.
Frequently Asked Questions
Q: What is the difference between the 131Z3169 (Class C1 EMC) and the 131B0654 (Class C3 EMC) at the same 5.5 kW / 400 V / PROFIBUS specification?
A: Both drives provide identical power electronics, PROFIBUS DP communication, and FC-302 control capability at 5.5 kW / 400 V. The difference is the EMC filter class: the 131Z3169 includes a Class C1 filter suitable for residential and commercial environments (strictest EMC limit), while the 131B0654 includes a Class C3 filter rated for industrial environments only. In a pure industrial installation with no residential or commercial areas in the vicinity, either filter class is acceptable — but if the installation is in a mixed environment, near residential buildings, or in a facility requiring Class C1 EMC compliance per the machinery CE declaration, the 131Z3169 is the correct specification. The 131Z3169’s C1 filter also provides superior attenuation of conducted emissions back to the supply, which benefits other sensitive equipment sharing the same electrical supply infrastructure.
Q: Can the 131Z3169’s SyncPos function synchronise to a PROFIBUS master position reference instead of a physical encoder?
A: Yes. The FC-302 SyncPos function supports virtual master synchronisation via PROFIBUS — the master PLC writes the master position value to the FC-302’s PROFIBUS input telegram each communication cycle, and the SyncPos function tracks this virtual master position with the same gear ratio and cam table logic as physical encoder synchronisation. This virtual master approach is used in machines where multiple FC-302 drives must synchronise to a common machine axis position broadcast by the PLC over PROFIBUS, without requiring individual encoder cables from the master axis to each slave drive.
Q: Does the 131Z3169 support Safe Torque Off (STO) for EN ISO 13849-1 safety compliance?
A: Yes. Terminal 37 on the 131Z3169 implements the Safe Torque Off (STO) function in accordance with IEC 61800-5-2, achieving PLd Category 3 per EN ISO 13849-1 and SIL 2 per IEC 61508 when wired according to the FC-302 Safe Torque Off Operating Instructions. STO removes the gate drive signals from the IGBT inverter bridge, preventing the drive from generating torque without removing main power — enabling integration with EN ISO 13849-1 safety circuits for emergency stop, guard door interlocking, and other safety functions without the response time penalty of main contactor opening.
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