ACP-090-18 Copley Controls
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The Copley Controls ACP-090-18 is part of the Accelnet CanOPEN Modules series and features a continuous output power of 0.53 kW with a peak output power of 1.55 kW. This module supports a DC bus voltage of 90 Vdc, provides 12 digital inputs and 3 digital outputs, and operates a current loop rate and PWM switching frequency of 15 kHz. The ACP-090-18 measures 168 by 99 by 31 mm and has a peak current rating of 18 Adc.
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Product Description:
The ACP-090-18 is a digital servo drive module manufactured by Copley Controls for the Accelnet CANopen Modules series. It converts regulated DC bus energy into controlled three-phase output for brushless or brushed motors while exchanging commands and feedback over a CANopen fieldbus. By integrating current, velocity, and position control loops, the module supports tightly coordinated motion in packaging lines, pick-and-place axes, and other automated machinery that requires responsive torque delivery.
During continuous operation, the drive accepts a bus voltage of 90 Vdc and can supply up to 6 Adc per phase, which corresponds to 4.2 Arms when driving sinusoidal currents. This continuous current provides an output of 0.53 kW to motor windings with an inductance of at least 200 µH. This minimum inductance keeps switching ripple within safe limits based on the device’s output resistance of 0.075 Ω. The current controller operates at 15 kHz, and the PWM stage uses the same carrier frequency to modulate duty cycles with fine resolution. Twelve optically isolated digital inputs accommodate step-and-direction, limit, or homing signals, while three digital outputs report status to external interlocks. An analog command port has an input impedance of 5 kΩ for torque or velocity references from sensors or PLCs.
For transient demands, the amplifier supplies 1.55 kW and a peak current of 18 Adc for up to one second, enabling fast acceleration of inertial loads before the controls reduce the output to its continuous ratings. Position and velocity loops operate at 3 kHz, allowing the drive to correct following errors within a millisecond. Gate drivers support a minimum PWM pulse of 220 ns without lost cycles, preserving linearity at high duty factors. The enclosure measures 168 × 99 × 31 mm, providing a compact format for installation in automated equipment. Minimum load inductance, bus capacitance, and output resistance affect the module’s switching energy and heat dissipation.
