APM-090-30 Copley Controls
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The Copley Controls APM-090-30 is part of the Accelnet CanOPEN Modules series. This module supports a peak current of 30 A DC for 1 second and a continuous current of 15 A DC, with a minimum supply voltage of 14 VDC and a maximum of 90 VDC. It offers 12-bit analog input resolution, features 11 digital inputs and 6 outputs, and weighs 0.12 kg.
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Product Description:
The APM-090-30 is a DC-powered servo drive module manufactured by Copley Controls for the Accelnet CANopen Modules series. It combines power amplification, motion control, and fieldbus connectivity so a PLC can command torque, velocity, or position without separate converters. By accepting CANopen commands and local encoder or step signals, the drive regulates single-axis motion in pick-and-place heads, indexing tables, or precision feeders where compact size and distributed mounting are required.
The power stage supplies a continuous output of 15 A DC, while short acceleration bursts can reach 30 A DC for one second to overcome inertial loads. The electronics tolerate a supply range from 14 VDC up to 90 VDC, allowing the drive to operate with 24 V, 48 V, or high-voltage 80 V bus architectures. Motor windings must provide at least 200 µH of inductance so the 16 kHz switching stage remains stable and current ripple stays within acceptable limits. Analog reference inputs are digitized at 12-bit resolution for speed or torque trimming, and the CAN interface supports 1 Mbit/s for real-time PDO exchanges. Despite its 76.3 × 58.2 × 20.5 mm footprint, the module carries eleven optically isolated digital inputs and six sourcing outputs. It weighs only 0.12 kg, supporting direct integration into a panel or carriage.
On the control side, the position loop executes at 4 kHz, providing tight following-error limits even on low-inertia axes. Pulse-width modulation is generated at 16 kHz, and a spread-spectrum strategy shifts the dominant ripple to 32 kHz to minimize audible noise. When the unit is driven by external step-and-direction signals, its input circuitry accepts pulse rates up to 4 MHz, enabling high microstep resolutions without missing edges. These processing rates work with the digital inputs and outputs to support fast homing sequences and synchronized latch functions. The CAN bus handles higher-level sequencing while the local control loops manage rapid axis response.
