Product Description:

The 800-1831 is a compact digital servo amplifier produced by Copley Controls within the Accelnet CANopen Modules series. The module interfaces with a host controller over CANopen to drive three-phase brushless motors and brushed servomotors used in pick-and-place machines, conveyors, and semiconductor tooling. It converts low-level motion commands into precisely regulated phase currents while monitoring feedback lines and field wiring for operating faults. Designed for panel installation, it combines power electronics, signal conditioning, and network connectivity in a single enclosure, reducing the number of separate components required within the control cabinet.

The current control loop executes at 16 kHz, allowing the drive to respond rapidly to load disturbances and changing torque commands. Above this inner loop, the position processor closes at 4 kHz, supporting high-resolution trajectory execution without step loss. To accommodate high-speed encoders, the feedback channel supports a quadrature throughput of 20 million counts per second and accepts incremental encoder lines at up to 5 MHz, minimizing interpolation errors at elevated shaft speeds. Motors with line-to-line inductances as low as 200 µH can be driven without instability because the PWM carrier and control algorithms are tuned for low electrical time constants.

The analog front end uses a 12-bit converter to sample external torque or velocity commands. Its input impedance is 5.05 kΩ, which minimizes loading on the connected command source. For encoder power distribution, an onboard regulator provides +5 VDC at 500 mA, maintaining signal integrity for optical or magnetic sensors connected through the high-rate feedback path. Functional safety is supported by two STO channels that cut drive output energy when the safety circuit is activated. The dual-channel arrangement provides independent paths for disabling motor torque in demand-controlled machinery zones.