S72402-NA Kollmorgen
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The Kollmorgen S72402-NA is part of the S700 Servo Drives series and weighs 5.5 kilograms. This servo drive features a peak output current of 48 Arms, a rated current of 24 Arms, and operates on a three-phase AC power source with a voltage rating from 208 to 480V. It is equipped with onboard EtherCAT and CANopen, and provides dual channel STO capability for safety.
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Product Description:
The S72402-NA servo drive is built by Kollmorgen for the S700 Servo Drives series. It operates as a cabinet-mounted axis controller that rectifies three-phase AC mains and delivers pulse-width-modulated currents to matched servomotors, allowing accurate torque and velocity regulation inside automated production cells. EtherCAT and CANopen communication are provided on the base hardware, so no expansion card is required when tying the drive into modern PLC networks.
The input source is three-phase AC within a voltage window of 208–480 V, and the unit handles a continuous output of 24 Arms while sustaining up to 48 Arms for short dynamic events. A power section rated at 18 kVA supports this current envelope, and internal IGBTs switch at 8 kHz to create finely stepped line-to-line waveforms that minimize motor ripple. Compatible supply frequencies of 50 or 60 Hz allow use on global grids, and the drive maintains proper current regulation with motors that have inductance values down to 1.4 mH at 400 V. Peak bursts are limited to two seconds to protect semiconductor junctions, and a DC-link design rated for 900 V maximizes regenerative margin when decelerating high-inertia axes.
Total thermal loss at rated load is 330 W, extracted through the aluminum heatsink and aided by forced air to keep the internal temperature within safe operating limits. Braking energy is routed to an onboard resistor of 23 Ω, sized for 200 W average dissipation, so most cyclical stops do not require an external shunt. Acoustic output remains below 65 dB(A) at one meter, supporting installation in operator-accessible zones. The safety circuit offers dual-channel STO, allowing SIL-compliant torque isolation without external contactors. Additional features include 25 W of quiescent dissipation when idle, standard FR4 PCBs for the power and control layers, a weight of 5.5 kg for easy panel handling, and a documented noise-filtered switching frequency that keeps conducted EMI within industrial limits.
Frequently Asked Questions about S72402-NA:
Q: What is the peak output current of the S72402-NA drive?
A: The S72402-NA can deliver a peak output current of 48 Arms.
Q: What type of input power does the S72402-NA require?
A: This drive is designed for use with a three-phase AC input power source.
Q: What onboard communication interfaces does the S72402-NA provide?
A: The S72402-NA includes both EtherCAT and CANopen communication onboard, with no expansion card required.
Q: How much heat does the S72402-NA dissipate at rated current?
A: Heat dissipation at rated current for the S72402-NA is specified at 330 W.
Q: What voltage rating is supported by the S72402-NA servo drive?
A: The S72402-NA supports a voltage range of 208 to 480 V.
