S30661-NA-SB

S30661-NA-SB is a Kollmorgen unit in the S300 Servo Drives series. It accepts an input voltage of 110–230 V and has a rated input power of 2.4 kVA for supplying the drive and connected motor. The rated output current is 6 A RMS, while the output-current form factor of 1.01 indicates the relationship between its effective and average current levels. Its residual voltage drop is 4 V.

The DC bus supports a maximum voltage of 450 VDC. At a 230 V input, the F02 overvoltage threshold is 455 VDC, which triggers overvoltage protection. The minimum motor inductance at 3 × 230 V is 2.6 mH, and the voltage rise rate is 3.3 kV/µs. The standard switching frequency is 8 kHz and can reach 16 kHz at 50% load, controlling how rapidly the power stage switches. Power switching is limited to 30 on/off cycles per hour.

An internal 66-ohm brake resistor dissipates regenerated energy during deceleration, and the external braking capacity is 1 kW. Thermal dissipation is 12 W while idle and 60 W at rated operation, providing values for enclosure cooling calculations. CANopen is onboard for communication with compatible control networks. The drive also includes Safe Torque Off (STO), which prevents torque-producing power from reaching the motor when the safety function is activated.