Drive selection memo for the ATV9A0C63T6
The Schneider ATV9A0C63T6 is a modular Altivar Process ATV900 drive rated 650 hp at 600 V normal duty or 550 hp heavy duty, with apparent power of 565 kVA normal duty. The duty distinction matters: normal duty suits variable-torque loads like pumps and fans; heavy duty applies to constant-torque or high-start-torque applications such as conveyors or extruders. Line current at 600 V normal duty is 544 A, heavy duty 464 A — size upstream fuses and contactors accordingly. An integrated EMC filter rated for 300 m cable according to IEC 61800-3 category C3 is included, eliminating the need for an external filter in most industrial installations. The switching frequency is adjustable from 2 to 4.9 kHz; expect derating above 4 kHz if continuous full load is required. STO (Safe Torque Off) to SIL 3 is built in, per IEC 61508 and IEC 13849-1. The drive also provides motor thermal protection, phase loss detection, and protection against overvoltage/undervoltage on the DC bus and line supply.
Cabinet integration notes
The drive is IP00 rated for integration into a cabinet achieving IP21 or IP54 per IEC 61800-5-1 and IEC 60529. Cabinet mount only — forced convection cooling requires unimpeded airflow and clearance above and below. Pollution degree 2 environment per IEC 61800-5-1. Line side connections use M10 studs; motor connections also M10 bars. Control wiring via removable screw terminals accepting 0.5 to 1.5 mm² (AWG 20 to 16). Prospective line short-circuit current is 50 kA.
Communication and option board flexibility
Communication is built around a modular option slot A accepting Profibus DP V1, PROFINET, DeviceNet, EtherCAT, CANopen (daisy chain RJ45, SUB-D 9, or screw terminals). Slots A, B, and C also accept digital/analog I/O extension modules or output relay extensions. Slot B can also host a 5/12 V digital encoder interface, analog encoder interface, or resolver interface. Native Modbus serial (2-wire RS 485, RTU, up to 38.4 kbit/s) and Modbus TCP (10/100 Mbit/s half/full duplex) are standard — no bridge required.