S7720A-NANA-PA Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen S7720A-NANA-PA is a servo drive from the S700 Servo Drives series and weighs 13 kilograms. It features a rated current of 72 Arms, supports a voltage rating from 208 to 480 volts, and has a rated input power of 50 kVA. The drive includes dual channel STO capability and offers EtherCAT and CANopen onboard.
Internal Product Review
The S7720A-NANA-PA is a Kollmorgen S700 servo drive with onboard EtherCAT and CANopen for efficient network integration. A 208...480 V rating and 72 Arms rated current give this drive excellent application range and strong motion control capability. Dual-channel STO and a coldplate with coated PCBs make this model especially appealing for safety-conscious installations.
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Product Description:
The S7720A-NANA-PA is a servo drive produced by Kollmorgen within the S700 Servo Drives series. It conditions three-phase mains power and delivers controlled current to synchronous or induction servomotors, allowing precise speed and position regulation in industrial automation cells, packaging systems, and robotics. By combining motion amplification, fieldbus networking, and integrated safety in one frame, the unit streamlines cabinet layouts and reduces the number of separate automation components.
The drive supplies a continuous output of 72 A RMS while accepting line voltages from 208 to 480 V. Its analog command port offers 20 kΩ input resistance and furnishes feedback signals at ±10 V. A carrier frequency of 8 kHz controls the IGBT stage, and an output-current form factor of 1.01 keeps RMS and average values nearly identical for accurate thermal modeling. The power bridge imposes only a 6 V residual drop, and a dedicated 3 A brake supply energizes motor holding brakes. EtherCAT and CANopen are provided on the base hardware, so no expansion card is required for networked motion. STO logic, analog outputs, and parameter access remain active through these buses even when the main amplifier is disabled.
Under full load, the converter draws 50 kVA and disperses 1005 W of heat at a 400 V DC link; when the enable signal is low, dissipation falls to 24 W. A coldplate base and coated PCBs improve heat transfer and help resist moisture or dust intrusion inside the cabinet. Acoustic emission does not exceed 68 dB(A), supporting use in equipment that must stay within typical plant noise limits. Integrated dual-channel STO circuitry provides redundant torque cutoff without external relays. The enclosure stands 386 mm high, 244 mm deep, and 190 mm wide, weighs 13 kg, and is intended for vertical mounting so cabinet airflow can remove generated heat more effectively.
