S77202-EIF2-NA Kollmorgen
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The Kollmorgen S77202-EIF2-NA is part of the S700 Servo Drives series and weighs 13 kilograms with dimensions of 386 mm in height, 190 mm in width, and 244 mm in depth without connectors. This servo drive features a rated current of 72 Arms, a peak output current of 140 Arms, and a voltage rating from 208 to 480 V. It offers 14 digital inputs, 8 digital outputs, a dual channel STO safety function, and 50 kVA rated input power.
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Product Description:
The S77202-EIF2-NA servo drive is produced by Kollmorgen as part of the S700 Servo Drives series. It is a panel-mounted controller that regulates torque, speed, and position of AC servo motors in industrial automation. By converting the line supply into precisely modulated output currents, the unit links motion axes with PLC logic and feedback devices. The drive processes command and feedback signals in real time so motion profiles can remain stable during speed changes and load disturbances. Its cabinet-mounted format keeps power conversion and motion control in a single device.
Physically, the drive occupies a footprint of 190 mm in width and 386 mm in height, with a depth of 244 mm when connectors are excluded. Under nominal conditions, it delivers a continuous phase current of 72 Arms. Short acceleration demands can draw up to 140 Arms for rapid movement. The power section accepts three-phase mains from 208 to 480 V, drawing up to 50 kVA and presenting a residual voltage drop of 6 V at the terminals. Internal airflow is controlled by a fan controller expansion card that engages the fan once the internal temperature reaches 65 °C. Logic integration is handled through 14 digital inputs rated at 24 V / 7 mA, eight digital outputs capable of 24 V / 500 mA, and a dedicated 24 V control input. This option variant uses standard PCBs.
The output stage clocks at 8 kHz, allowing fine current vectors while keeping conducted EMI within drive-cabinet limits. Under full 480 V operation, the unit releases 1135 W of heat, yet only 24 W are produced when the power stage is disabled, which simplifies cabinet cooling during standby. Functional safety is provided by a dual-channel STO interface that removes torque without external contactors. Even with these capabilities, the assembly weighs only 13 kg, which helps support high-power axes without placing excessive load on the mounting panel. This balance of thermal output, switching behavior, and integrated safety suits dense servo installations that need compact drive packaging.
Frequently Asked Questions about S77202-EIF2-NA:
Q: What is the rated current for the Kollmorgen S77202-EIF2-NA servo drive?
A: The S77202-EIF2-NA drive has a rated current of 72 Arms for continuous operation.
Q: What safety feature does the S77202-EIF2-NA servo drive include?
A: This model features dual channel Safe Torque Off (STO) capability for enhanced safety integration.
Q: What is the maximum peak output current of the S77202-EIF2-NA?
A: The peak output current for this unit is 140 Arms.
Q: How many digital inputs and outputs does the S77202-EIF2-NA provide?
A: The S77202-EIF2-NA offers 14 digital inputs and 8 digital outputs for I/O control.
Q: What is the thermal dissipation of the S77202-EIF2-NA at 480 V?
A: At 480 V, this drive dissipates 1135 W of thermal energy during operation.
