Product Description

The DC servo drive ACJ-055-18 suitable for demanding environments requiring efficient and stable servo motor control. The DC servo drive compensates for bus voltage changes to ensure stable performance without bandwidth alterations.

This Accelnet series servo drive supports current, velocity and position control to ensure optimal performance in various applications. Its digital control loops are entirely digitally managed with a current loop operating at 15 kHz and velocity/position loops at 3 kHz for swift and accurate responses. The servo drive utilizes sinusoidal field oriented control or trapezoidal commutation for brushless motors. It employs center weighted PWM with space vector modulation for efficient operation. The device's current loop bandwidth typically reaches 2.5 kHz that varies with load inductance and tuning parameters. It requires a minimum load inductance of 200 µH line to line for proper functionality. Its encoder emulation capability provides a programmable resolution of up to 16,384 counts per revolution that is equivalent to a 4096-line encoder with buffered encoder outputs driven by a 26C31 differential driver.

The Copley Controls ACJ-055-18 DC servo drive supports multiple command inputs including CANopen for communication and digital options like step/direction or PWM inputs. It accepts analog torque, velocity or position signals with a ± 10 VDC range and features a 5 k differential input impedance. Additional features include compatibility with stepper commands up to 2 MHz and robust protection for encoder power supply at + 5 V DC. It is capable of supplying 400 mA and limited to 750 mA at 1 VDC under overload conditions. The servo drive can endure 2 g peak vibration at 10 - 500 Hz and 10 g shock pulses lasting 10 ms.