Power ratings and duty selection
The ATV9B0C50Q4 delivers 500 kW normal duty at 400 V with 537 kVA apparent power, and 400 kW heavy duty at 429 kVA. Line current at 400 V is 775 A for normal duty, 620 A for heavy duty. The heavy-duty rating governs continuous operation in high-torque loads like conveyors or extruders — the normal-duty figure applies when the drive runs below its thermal limit most of the cycle. Regenerative mode ratings are also specified: 500 kW normal duty regenerative at 465.8 kVA, and 400 kW heavy duty regenerative at 372.7 kVA. This matters for applications that return energy to the line — hoists, centrifuges, or test stands — where the braking energy must be handled without a chopper resistor.
Safety and fieldbus integration
This means the drive can be used in safety circuits up to SIL 3 without an external safety relay on the power stage — the STO function removes the motor torque independently of the control logic. The control circuit supply for STO and digital inputs is 24 V DC (21...27 V) from the internal supply. Three option slots (A, B, C) accept communication modules for Profibus DP V1, PROFINET, DeviceNet, CANopen, EtherCAT, and digital/analog I/O or relay extension modules. Slot B also supports encoder interfaces (5/12 V digital, analog, resolver). The drive ships with dual RJ45 for Ethernet IP/Modbus TCP and one RJ45 for Modbus serial at 10/100 Mbit/s.
Rated IP00, meaning it requires an IP21 or IP54 cabinet for installation. The integrated EMC filter meets IEC 61800-3 category C3 with 300 m of motor cable — suitable for industrial environments with a dedicated transformer or TN system, but not for residential mains without additional filtering. Operating altitude is 0...4800 m with current derating above 1000 m. Switching frequency is adjustable 2.5...8 kHz with a derating factor — raising the carrier quiets the motor but reduces continuous output current. Ambient temperature range is not explicitly stated in the spec table, but the forced-convection cooling and 75 dB noise level at full load suggest a well-ventilated cabinet location.