The ATV930D11N4 is a variable speed drive from the Altivar Process ATV900 series, designed for both asynchronous (induction) and synchronous (PM) motors in industrial applications. Its two duty profiles — 11.0 kW normal duty and 7.5 kW heavy duty — define the continuous load it can handle versus the overload capability for demanding applications like conveyors or extruders. Normal duty at 11.0 kW delivers 23.5 A continuous output current at a 4 kHz carrier frequency, suitable for variable-torque loads such as centrifugal pumps and fans. Heavy duty at 7.5 kW provides 16.5 A at 4 kHz, with higher overload margin for constant-torque loads like conveyors, mixers, and positive-displacement pumps. The 380...480 V 3-phase input range covers global industrial mains voltages. The drive includes a built-in braking chopper for dynamic braking, so it can handle overhauling loads or rapid deceleration without an external braking unit — a common requirement for hoists, centrifuges, and unwinders.
Control power architecture and fieldbus integration
The drive provides multiple internal control supplies: external 24 V DC (19...30 V) for digital inputs, internal 10.5 V DC for a reference potentiometer (1 to 10 kOhm), and internal 24 V DC for digital inputs and STO (Safe Torque Off). This reduces external power supply requirements for typical control wiring. Native communication protocols include EtherNet/IP, Modbus serial, and Modbus TCP, with transmission rates up to 100 Mbits for Ethernet and 4.8-19.2 kbps for serial. Three option module slots (A, B, C) accept fieldbus adapters for Profibus DP, PROFINET, DeviceNet, EtherCAT, CANopen, plus encoder and I/O extension modules — giving flexibility for integration into existing automation architectures. The adjustable PID regulator supports closed-loop process control for variables like pressure, flow, or level without an external controller, simplifying installation in pumping and HVAC applications.
Environmental ratings and mounting constraints
IP21 degree of protection with UL type 1 enclosure means the drive is suitable for clean, dry indoor environments only — no protection against dripping water or dust ingress. Wall mount mounting is standard, with the operating position vertical within +/- 10 degrees for proper cooling airflow. The drive requires 103 m³/h (27210.2 Gal/hr US) of cooling air — panel builders must ensure enclosure ventilation or forced airflow to maintain thermal performance. Operating altitude derating applies above 1000 m (1% current reduction per 100 m up to 4800 m). Vibration resistance is 1.5 mm peak-to-peak at 2-13 Hz and 1 gn at 13-200 Hz per IEC 60068-2-6, with shock resistance of 15 gn for 11 ms per IEC 60068-2-27.
Standards compliance and lifecycle status
The ATV930D11N4 carries CE marking and complies with UL 508C, IEC 61800-3 (EMC), IEC 61800-5-1 (safety), IEC 61000-3-12 (harmonics), IEC 60721-3 (environmental), IEC 61508 (functional safety), and IEC 13849-1. The integrated EMC filter meets conducted emission limits for most industrial environments without external filtering.