ACJ-055-18
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The Copley Controls ACJ-055-18, from the Accelnet Series, features a peak current of 18 Adc and weighs just 4.8 ounces. It can handle a peak output power of 970 W and supports an input voltage range of 20 to 55 Vdc. The drive uses a 3-phase MOSFET inverter with conduction or convection cooling.
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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.
Frequently Asked Questions about ACJ-055-18:
Q: What type of control loops does the ACJ-055-18 DC servo drive use?
A: The ACJ-055-18 features fully digital control loops. The current loop operates at 15 kHz, while velocity and position loops run at 3 kHz for precise responses.
Q: What are the encoder emulation capabilities of the ACJ-055-18 DC servo drive?
A: The ACJ-055-18 supports up to 16,384 counts per revolution. It features buffered encoder outputs driven by a 26C31 differential driver for enhanced accuracy.
Q: What command inputs are compatible with the ACJ-055-18 DC servo drive?
A: The ACJ-055-18 accepts CANopen communication and digital step/direction or PWM inputs. It also handles analog signals with a ±10 VDC range and 5 k differential input impedance.
Q: What is the ACJ-055-18 DC servo drive's current loop bandwidth?
A: The ACJ-055-18 achieves a typical current loop bandwidth of 2.5 kHz. This varies with load inductance and tuning parameters for optimized performance.
Q: How does the ACJ-055-18 DC servo drive handle vibration and shock?
A: The ACJ-055-18 endures 2 g peak vibration at 10-500 Hz. It also withstands 10 g shock pulses lasting 10 ms, making it highly durable for tough environments.
