Product Description:

The XEC-230-12 is a digital loop module produced by Copley Controls for the XENUS Digital Loop Modules series. It operates as a compact servo drive that mounts near the motor and closes current, velocity, and position loops in real time. By integrating directly with machine controllers, the module supplies the regulated phase power required to move linear stages, rotary actuators, and other electromechanical axes in industrial automation.

The drive accepts ±10 Vdc command references through a 5.05 kΩ differential input, keeping the load on upstream motion controllers low. Its internal bus holds 940 µF of capacitance to smooth energy drawn from the DC supply, while motor protection requires a minimum load inductance of 200 µH. Continuous output current is rated at 6 Adc, and transient demands can be met with a 12 Adc peak for 1 second before thermal limits intervene. These currents are regulated by a current loop that refreshes at 16 kHz; the velocity and position loops are updated at 4 kHz to maintain tight trajectory control. Digital position updates can arrive at up to 4 MHz, and each phase command is quantized with 12-bit resolution. Pulse-width modulation is generated with a minimum on-time of 220 ns, allowing fine duty-cycle control even at high switching frequencies.

Power is drawn from single-phase mains, with the maximum line current reaching 9.4 Arms. Regenerative energy returning from decelerating loads is handled by an onboard resistor that can dissipate 20 W continuously. The resistor engages when the bus voltage rises to 390 Vdc ±2 Vdc. Feedback capture is supported through a quadrature interface capable of processing 2 million lines per second. Position data are combined with computed duty cycles to keep the motor within allowable error bands during high-speed reversals.