Schneider Electric ATV320U22N4C

Product Details

ATV320U22N4C Product Description

The Schneider Electric ATV320U22N4C is a 2.2 kW, 380–500 V three-phase variable frequency drive from the Altivar 320 series, engineered to serve as a fully network-integrated motor controller within modern smart factory architectures. Unlike conventional drives that operate in isolation, the ATV320U22N4C is designed from the ground up to participate in the industrial data chain — from field-level signal acquisition through PLC command execution, SCADA visualization, and remote diagnostic feedback. Its native support for Modbus RTU and CANopen communication protocols makes it a versatile node in both legacy automation networks and next-generation IIoT-ready plant environments.

In a typical smart factory deployment, the ATV320U22N4C sits at the intersection of the physical and digital layers. Motor speed references, torque limits, fault codes, and energy consumption data are continuously exchanged between the drive and the upstream control system. A Schneider Electric Modicon M241 or M251 PLC issues speed setpoints via Modbus RTU over RS-485, while the drive responds with real-time feedback — current draw, output frequency, thermal state, and fault registers — that feeds directly into the plant's SCADA platform. This bidirectional data flow eliminates the data gaps that plague sites still relying on manual inspection or analog signal wiring.

Where CANopen is the preferred fieldbus, the ATV320U22N4C integrates seamlessly into CANopen networks alongside other Altivar 320 drives, Schneider Electric TM3 remote I/O modules, and distributed I/O nodes. The drive's CANopen DS402 profile compliance ensures plug-and-play interoperability with motion controllers and HMI terminals from the same ecosystem, reducing commissioning time and eliminating custom protocol mapping work.

For sites requiring Ethernet-based connectivity — EtherNet/IP, PROFINET, or Modbus TCP — the ATV320U22N4C supports optional VW3A3616, VW3A3627, or VW3A3628 communication cards, transforming the drive into a full Ethernet node. Once on the Ethernet backbone, the drive's process data is accessible to Wonderware, Ignition, or Vijeo Citect SCADA systems without any intermediate protocol converter. Edge gateways such as the Schneider Electric EcoStruxure Machine Advisor can then aggregate drive telemetry alongside data from Altivar Process ATV600 drives, Lexium servo drives, and Tesys motor starters to deliver a unified equipment health dashboard.

Signal acquisition begins at the sensor layer. Proximity switches, pressure transmitters, and flow sensors connected to TM3 analog input modules feed process variables into the PLC, which in turn adjusts the ATV320U22N4C's speed reference dynamically. This closed-loop architecture — sensor → I/O module → PLC → drive → motor — is the backbone of energy-optimized pump and fan control in water treatment, HVAC, and process industries. The drive's built-in PID controller can also operate autonomously, maintaining a process setpoint without continuous PLC intervention, further reducing network traffic and scan-cycle load.

Remote diagnostics is one of the most operationally significant capabilities of the ATV320U22N4C in a networked environment. Maintenance engineers can interrogate the drive's fault history, last-trip data, and thermal model state from a remote HMI or SCADA workstation without physically accessing the control panel. When integrated with Schneider Electric's EcoStruxure Power Monitoring Expert or a third-party OPC-UA server, the drive's energy data — kWh consumed, peak demand, power factor — becomes part of the plant's energy management reporting chain, supporting ISO 50001 compliance and sustainability targets.

Alarm management is equally streamlined. The ATV320U22N4C maps its internal fault codes to standard Modbus holding registers, allowing the SCADA system to generate operator alerts, log timestamps, and trigger automated responses — such as switching to a standby pump — without manual intervention. This alarm-to-action pipeline is critical in unmanned substations, remote pumping stations, and offshore installations where response time directly affects process continuity.

System expansion is straightforward. Additional ATV320 drives can be added to the Modbus RTU network up to the RS-485 bus limit, or the network can be segmented using an industrial Ethernet switch — such as a Schneider Electric ConneXium managed switch — to extend reach and add redundancy. The drive's parameter sets can be cloned and deployed across multiple units using the SoMove configuration software or the ATV320's integrated keypad, ensuring consistency across a fleet of identical drives on the same production line.

Every ATV320U22N4C unit supplied by NANKMOS is pre-shipment tested against Schneider Electric factory acceptance criteria, verifying communication register mapping, motor control response, and protection function operation before dispatch. Units are held in climate-controlled storage and shipped with full documentation. A 12-month warranty covers all hardware defects from the date of delivery, with technical support available for integration queries.

A complete smart factory data chain built around the ATV320U22N4C typically spans seven functional layers. At the field level, inductive proximity sensors and 4–20 mA pressure transmitters connected to Schneider Electric TM3AI8 analog input modules provide real-time process feedback. These signals are processed by a Modicon M241 or M251 PLC running SoMachine logic, which calculates the required motor speed and issues a Modbus RTU write command to the ATV320U22N4C's speed reference register (CMV, register 8501).

The drive executes the speed command and simultaneously updates its output registers — output frequency (RFRD), motor current (LCR), thermal state (THR), and fault code (ETF) — at every Modbus polling cycle. A Schneider Electric Magelis HMIGXU HMI terminal reads these registers and displays a live drive status panel for the machine operator, including a trend graph of motor current over the last 24 hours.

At the network layer, a ConneXium TCSESM managed Ethernet switch aggregates data from multiple ATV320 drives, TM3 I/O modules, and a Lexium 32 servo drive controlling a positioning axis on the same production line. The switch's VLAN configuration isolates motion-critical traffic from general plant Ethernet, ensuring deterministic response times for speed reference updates.

An EcoStruxure Machine Advisor edge gateway collects OPC-UA data from the PLC and forwards aggregated KPIs — energy per unit produced, drive utilization rate, fault frequency — to the cloud analytics platform. This data feeds a Wonderware System Platform SCADA historian, where process engineers can correlate drive thermal events with upstream sensor anomalies and schedule predictive maintenance before a trip occurs.

For sites with legacy 4–20 mA infrastructure, a Moxa MGate MB3170 Modbus gateway bridges the ATV320U22N4C's RS-485 port to the plant's Modbus TCP backbone, making the drive's data visible to any SCADA client without replacing existing wiring. This gateway approach is also used to integrate older Altivar 31 or Altivar 71 drives on the same network segment, providing a migration path that protects existing motor assets while adding modern connectivity.

Many industrial sites operate with fragmented automation architectures — drives on one network, PLCs on another, and SCADA systems that can only see a fraction of the plant's actual operating state. The ATV320U22N4C directly addresses four of the most common data gap scenarios.

Protocol fragmentation: Sites with mixed Modbus RTU and CANopen devices can use the ATV320U22N4C's dual-protocol capability to bridge both networks from a single drive node, reducing the number of protocol converters required and simplifying network topology documentation.

Data islands: Drives operating in local keypad mode generate no network data. Migrating to ATV320U22N4C with Modbus RTU enabled immediately surfaces motor operating data to the SCADA historian, converting a previously invisible asset into a monitored, reportable node.

Remote monitoring gaps: In unmanned pump stations or remote compressor skids, the ATV320U22N4C's fault register mapping allows the SCADA system to detect, log, and alarm on drive faults within one Modbus polling cycle — typically under 500 ms — without requiring a site visit for initial fault identification.

Production line transparency: By integrating ATV320U22N4C drives with a Vijeo Designer HMI and a Modicon M340 PLC, production managers gain a real-time view of motor load distribution across a conveyor or packaging line, enabling dynamic load balancing and reducing energy waste during low-throughput periods.

Q: What is the maximum number of ATV320U22N4C drives that can be connected on a single Modbus RTU network?A: The RS-485 physical layer supports up to 32 nodes without a repeater. With RS-485 repeaters, the network can be extended to 247 Modbus slave addresses. In practice, polling cycle time increases with node count, so networks with more than 16 drives should be profiled for scan-cycle impact before commissioning.

Q: Can the ATV320U22N4C communicate over EtherNet/IP or PROFINET without additional hardware?A: Native communication is Modbus RTU and CANopen. EtherNet/IP, PROFINET, and Modbus TCP require the installation of an optional communication card (VW3A3628 for EtherNet/IP, VW3A3627 for PROFINET) into the drive's option slot. These cards are available and can be supplied together with the drive.

Q: How is the drive's network stability ensured in electrically noisy industrial environments?A: The ATV320U22N4C includes built-in EMC filters and shielded terminal recommendations for RS-485 wiring. For Ethernet-connected variants, industrial-grade shielded Cat6 cable and surge-protected switch ports are recommended. The drive's communication watchdog function detects network loss and executes a configurable fallback action — such as maintaining last speed or decelerating to stop — within a user-defined timeout period.

Q: What does the 12-month warranty cover, and what pre-shipment testing is performed?A: Every ATV320U22N4C unit undergoes pre-shipment functional testing covering power-up self-diagnostics, communication register verification (Modbus RTU read/write), motor control response at no-load, and protection relay operation. The 12-month warranty from delivery date covers all manufacturing defects in hardware and firmware. Technical support for integration and commissioning queries is included at no additional charge.