S7720F-NANA-S4 Kollmorgen
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The Kollmorgen S7720F-NANA-S4 is part of the S700 Servo Drives series and supports a rated input voltage from 208 to 480 volts with a rated input power of 50 kVA. This servo drive features IP20 ingress protection, a rated current of 72 Arms, and onboard EtherCAT and CANopen fieldbus connectivity. It provides dual channel STO safety, a short-circuit rating of 42 kA RMS, and a maximum fuse rating of 80 amps.
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Product Description:
The S7720F-NANA-S4 is an AC servo drive developed by Kollmorgen for the S700 Servo Drives series. The unit converts three-phase mains power into regulated motor voltage and current for closed-loop motion axes in industrial automation. By embedding EtherCAT and CANopen communication, it links directly to modern PLC platforms. This allows the drive to support high-speed torque, velocity, and position control for synchronous or induction motors used in packaging lines, robotics, test machinery, and other coordinated motion systems. Its control architecture also suits machines that need repeatable speed regulation during indexing, feeding, and synchronized axis movement.
The power section operates from a line supply of 208-480 V and delivers a continuous output of 72 Arms. With an input capacity of 50 kVA, the drive supports demanding acceleration cycles, and the PWM stage runs at 8 kHz to reduce motor noise. EtherCAT and CANopen are built in, so no expansion card is required and panel wiring stays simpler. The unit may be switched on and off 30 times per hour without exceeding its stated operating limit. It accepts RK5, CC, J, or T fuses up to 80 A, giving flexibility when matching the drive to available branch-circuit protection.
The drive carries a short-circuit withstand rating of 42 kA RMS Sym. when coordinated with the specified fuse classes, and the housing provides IP20 protection for installation inside a control cabinet. A coated printed circuit board helps protect internal electronics from moisture and airborne contaminants in enclosed industrial environments. Functional safety is handled by a plug-in S2-2 (S4) safety card that achieves PL d and SIL CL2. An integrated dual-channel STO disconnects the gate signals to the IGBTs, providing a hardware stop that is independent of the control network. This arrangement supports cabinet-mounted systems that require both electrical protection and safety shutdown capability.
Frequently Asked Questions about S7720F-NANA-S4:
Q: What is the rated current for the Kollmorgen S7720F-NANA-S4 servo drive?
A: The S7720F-NANA-S4 is rated for a maximum continuous current of 72 Arms.
Q: What voltage range does the S7720F-NANA-S4 support?
A: This servo drive operates with a voltage rating between 208 and 480 volts.
Q: Which communication protocols are available onboard the S7720F-NANA-S4?
A: It features onboard EtherCAT and CANopen fieldbus connectivity without requiring an expansion card.
Q: What type of PCB coating does the S7720F-NANA-S4 include?
A: The S7720F-NANA-S4 has a coated PCB for increased protection in challenging environments.
Q: What STO capability is included in the S7720F-NANA-S4 servo drive?
A: This model provides a dual channel Safe Torque Off (STO) safety function.
