CP306250 Kollmorgen
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The Kollmorgen CP306250 is a servo drive from the SP Servostar Servo Drives series. It offers a continuous output current of 6 Arms and a peak output current of 18 Arms for up to 500 milliseconds, with a line fuse rating of 20 Amps. The drive handles a maximum internal heat dissipation of 80 Watts and is protected with an overtemperature trip at 80 degrees Celsius.
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Product Description:
The CP306250 servo drive is manufactured by Kollmorgen as part of the SP Servostar Servo Drives series. Designed for closed-loop motion systems, this unit converts fixed three-phase utility power into a regulated output that governs Kollmorgen rotary or linear servomotors. By modulating voltage and current in real time, it supplies precise torque and velocity commands that are essential for packaging machines, pick-and-place axes, and other industrial automation tasks.
It draws from a 230 V three-phase supply and its input demand reaches 2.8 kVA at full load. Continuous motor current is rated at 6 Arms, providing steady torque during sustained operation. For acceleration intervals it can deliver 12 Arms for two seconds, and a higher burst of 18 Arms is available for 500 milliseconds to clear sharp load spikes. Current is synthesized by a pulse-width-modulated bridge that switches at 8 kHz; an internal ripple frequency of 16 kHz further smooths the motor waveform. The DC link becomes ready in 0.25 s after power-on, so axis enable commands can be issued almost immediately once the capacitors are charged.
Thermal and protective features are integrated for continuous reliability. Internal losses amount to 80 W, and cabinet ventilation must accommodate this heat while ambient temperature remains below the 80 °C overtemperature trip point. The recommended mains protection is a 20 A time-delay line fuse, while a soft-start circuit limits inrush to 30 A when the drive first energizes. Bus voltage supervision shuts the output off if the DC link exceeds 430 VDC or falls below 90 VDC. During regenerative braking the energy is absorbed by a 0.00164 F capacitor and dumped through a resistor no smaller than 20 Ω once the link reaches 325 VDC, keeping charge levels stable during braking events.
Frequently Asked Questions about CP306250:
Q: What is the required input voltage and maximum input power for the CP306250 drive?
A: The CP306250 servo drive operates with a 230V 3-phase input and handles up to 2.8 kVA.
Q: What is the continuous output current capability of the CP306250?
A: This drive provides a continuous output current of 6 Arms for steady operation.
Q: What are the peak output currents of the CP306250 for short durations?
A: The peak output current for 2 seconds is 12 Arms, and for 500 milliseconds it is 18 Arms.
Q: At what conditions does the CP306250 trigger its overtemperature and overvoltage protections?
A: Overtemperature protection activates at 80 °C, and overvoltage protection trips at 430 VDC.
Q: What is the maximum surge current permitted by the CP306250 during soft-start?
A: The maximum allowable surge current during soft-start is 30 A.
