Drive selection memo – LXM32CD30N4
This LXM32CD30N4 is a Lexium 32 servo drive in book format, accepting three-phase supplies from 200–240 V or 380–480 V. The continuous output current is 10 A at an 8 kHz switching frequency, with a 30 A peak for 5 seconds – that sizing fits a 3 kW motor on 400 V lines. The integrated EMC filter handles conducted emissions for standard CE-marked panels, so no external line filter is needed in typical installations. Continuous power is 2800 W at 208 V and 5600 W at 400 V or 480 V. Supply frequency tolerance is ±5 % at 50/60 Hz; network frequency range is 47.5–63 Hz.
Key ratings in context
The 10 A continuous current is specified at the 8 kHz factory-default switching frequency. The 30 A peak output is available for 5 seconds on both 208 V and 480 V supplies – useful for accelerating high-inertia loads. Line current draw varies with supply voltage and whether an external line choke is used. For example, at 400 V with a 1 mH choke the drive draws 11.1 A at 77 % rated load; without choke the same load draws 7 A at 148 %. The numbers matter when sizing upstream protection and cabling – an external choke reduces peak demand at higher voltages. Output voltage for the digital inputs follows EN/IEC 61131-2 type 1, with a threshold below 5 V for OFF and above 15 V for ON. No surprise there for integrators accustomed to standard PLC I/O levels.