Product Description:

The ACP-090-09 is a compact DC servo drive manufactured by Copley Controls for the Accelnet CANopen Modules series. Designed as a panel-mounted amplifier, it integrates with a CANopen fieldbus to regulate torque, velocity, or position in brushless, brushed, or stepper motor stages. By converting a low-ripple DC supply into high-frequency pulse-width-modulated phases, the unit delivers closed-loop motor control for packaging lines, semiconductor tools, and general factory automation equipment. Its thermal design supports fractional-kilowatt applications where space and wiring simplicity are priorities.

The drive accepts bus voltages up to 90 Vdc and sustains a continuous output of 0.27 kW while supplying 3 Adc to the motor phases. For transient acceleration, it delivers 9 Adc and reaches a peak output of 0.79 kW for 1 second, enabling short bursts without thermal derating. Input-side ratings track this operating range, with a continuous draw of 3.3 Adc and allowable peaks of 10 Adc. The power stage remains stable when the load inductance is at least 200 µH, preventing overcurrent ringing. Within the 20–90 Vdc range, the converter maintains consistent performance across resistive and inductive loads.

A control processor refreshes the current loop at 15 kHz, and the velocity loop closes at 3 kHz. These rates coordinate with a carrier frequency of 15 kHz, so commanded waveforms track reference signals with low phase lag. Twelve optically isolated command lines provide 12 configurable digital inputs, and three sourcing transistors furnish digital outputs for status or brake control. The module starts operating at bus levels as low as 20 Vdc, allowing shared supplies in multi-axis machines. Despite its integrated filters and connectors, the enclosure weighs only 0.43 kg, which simplifies mounting on moving carriages or inside compact cabinets.