Product Description:

The S7480A-DNF2-PM is a servo drive manufactured by Kollmorgen for the S700 Servo Drives series. It converts three-phase mains power into regulated motor currents so that automated axes follow precise position, speed, and torque commands. By combining digital current control with integrated safe-torque-off circuitry, the unit serves as the central power stage for packaging machines, material-handling gantries, and other industrial motion systems that require rapid response and coordinated multi-axis performance. Its control architecture also supports repeatable motion during frequent starts, stops, and speed changes.

Electrically, the drive accepts supply lines from 208 to 480 V and draws up to 35 kVA under full load. A continuous output of 48 A rms supports rated motor operation, while bursts can reach 96 A rms for acceleration or brief shock loads. Pulse-width modulation occurs at a switching frequency of 8 kHz, producing a low-ripple output waveform that helps limit motor heating and audible noise. Standby electronics dissipate only 24 W when the power stage is disabled, which reduces heat buildup inside the cabinet during idle periods. Dual-channel STO removes drive torque without cutting mains power, allowing safety circuits to stop motion quickly while keeping the control logic active.

Installation factors include a width of 190 mm, a depth of 244 mm, and a height of 386 mm. At 10.4 kg, the enclosure can be lifted into place without special lifting equipment. An integrated cold plate transports up to 685 W of thermal energy to the machine frame, and an optional fan-controller expansion card activates external blowers when additional airflow is required. Output devices exhibit a residual drop of 6 V, which helps when estimating motor terminal voltage during regenerative operation. Coated printed circuit boards resist condensation and dust, and the heat-transfer layout moves thermal energy away from the power electronics without relying only on internal air circulation.