AEM-090-30 Copley Controls
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The Copley Controls AEM-090-30 is part of the Accelnet CanOPEN Modules series and features a peak current of 30 A DC with a continuous current of 15 A DC. Its module size is 76.3 by 58.2 by 20.5 millimeters, and it offers an analog input range of ±10 VDC. The drive supports a PWM frequency of 16 kHz and provides 29-bit absolute position data.
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Product Description:
The AEM-090-30 is a compact digital servo drive module manufactured by Copley Controls for the Accelnet CANopen Modules series. As a node on a CANopen fieldbus, the drive interfaces motion controllers with brushless or brushed servo motors, translating network commands into regulated phase currents. Within automated machinery, this module closes motor current, velocity, and position loops internally, offloading those tasks from the PLC and enabling high-bandwidth axis control in pick-and-place stages, semiconductor handlers, and similar motion platforms.
Motor power handling begins with a continuous output of 15 A DC, while transient loads can draw up to 30 A DC for 1 s before foldback occurs. Current regulation operates at a 16 kHz loop rate, the same frequency used by the internal PWM stage, so control and switching remain synchronized. Analog commands are supported through a ±10 V DC input range, and this voltage is digitized alongside CANopen process data. The minimum motor load inductance is 200 µH, which keeps current ripple within acceptable limits. A motor with this inductance will experience ripple components in the 32 kHz PWM ripple band. The velocity and position loops operate at 4 kHz, while the encoder interfaces have overload protection up to 750 mA DC and can supply 400 mA DC.
The drive accepts absolute position words of up to 29 bits and counts quadrature edges at 20 Mcounts/s, allowing full use of high-line-count encoders. Incremental feedback through differential lines supports frequencies up to 5 MHz. The sine/cosine channel is filtered for 230 kHz carrier signals, supporting interpolation by external controllers. These encoder functions operate alongside CANopen fieldbus processing within the compact drive module. The module measures 76.3 × 58.2 × 20.5 mm, allowing dense multi-axis layouts in control enclosures without requiring substantial panel space.
