The ATH630U75N4Z is a cabinet-mount variable frequency drive from the Altivar HVAC ATH600 series, sized for a 7.5 kW (10 hp) motor at normal duty or 5.5 kW (7.5 hp) at heavy duty on a 380–480 V three-phase supply. It draws 12.94 A at 380 V normal duty, 11 A at 480 V normal duty, and 9.7 A / 8.3 A respectively in heavy duty. The control circuit needs an external 24 V DC supply (19...30 V); internal supplies handle digital inputs and STO at 24 V DC (20.4...27 V).
Safety and compliance
The drive carries SIL 3 per IEC 61508 and PL = e per ISO 13849-1 for the safe torque off (STO) function. It meets UL 61800-5-1, EN/IEC 61800-3, EN/IEC 61800-5-1, IEC 61000-3-12, IEC 60721-3, and RoHS. The integrated EMC filter is Class C2. Markings include CE, UKCA, CULus, EAC, RCM, ATEX, WEEE, and KCC.
Application features
Built-in functions include fire mode, forced fire mode, PID controller with up to 3 additional PID loops, damper control, underload detection for broken belt, scroll compressor management, skipped frequencies, catch on the fly, and power monitoring. The output frequency is 0.4 kHz.
