Product Description:

The S7480A-NAF2-PA is manufactured by Kollmorgen and belongs to the S700 Servo Drives series. Designed as the power interface for precision motion axes, this drive supplies controlled three-phase current to matched servomotors. It enables closed-loop speed and position control in automated machinery and material-handling equipment. Typical uses include packaging systems, indexing conveyors, and automated transfer equipment where the drive must respond quickly to command changes.

For continuous operation, the drive delivers a rated current of 48 Arms, while short bursts up to 96 Arms accommodate acceleration demands. Its input section accepts three-phase mains from 208–480 V and draws a maximum of 35 kVA. Thermal losses are transferred to a coldplate, limiting cabinet heat to 635 W, and the integrated fan controller expansion card modulates auxiliary blowers as needed. A 20 kΩ analog input allows high-impedance speed or torque references, and the analog monitor output reproduces feedback with 0.38 mV resolution for oscilloscope diagnostics. Dual-channel STO circuitry provides a hardware disable path, and the inverter may be switched on or off up to 30 times per hour without exceeding its semiconductor cycling limit. Coldplate construction and coated printed circuit boards help protect the electronics from condensation and airborne contaminants, and the 10.4 kg plate mounts directly to water or glycol chillers to maintain a stable base temperature.

The power stage rises at 4.0 kV/µs when commutating IGBTs, so proper shielding is required to control common-mode emissions. Motor compatibility starts at a minimum inductance of 0.74 mH, which helps prevent excessive ripple current. The residual output voltage drops only 6 V across the semiconductor bridge to maximize efficiency. Acoustic output remains under 62 dB(A), which suits typical plant noise limits. Proper cable shielding and suitable motor inductance help maintain stable operation during high-speed switching and help reduce unwanted electrical noise in the installation.