800-353 Copley Controls
Wake Industrial LLC is not an authorized distributor of this product.
The Copley Controls 800-353 is part of the DC Servo Amplifiers series and supports both torque and velocity control modes. It features a continuous current rating of 10 Amps with a peak current of 20 Amps, and has a current-mode bandwidth of 3 kHz. The amplifier operates with ±5 VDC auxiliary supply voltage and measures 5.1 by 3.3 by 1.4 inches.
Internal Product Review
The 800-353 is a Copley Controls DC servo amplifier with torque and velocity control modes. A 10 A continuous current rating paired with 20 A peak current supports strong dynamic response in demanding servo applications. Differential reference input with 100 kOhm input impedance promotes stable signal handling, making the amplifier a strong motion-control choice.
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Product Description:
The 800-353 is a DC servo amplifier manufactured by Copley Controls as part of its DC Servo Amplifiers series. The module interfaces between a motion controller and a permanent-magnet or wound-field servomotor, supplying bidirectional current while monitoring feedback to maintain precise torque or velocity control. By translating bipolar analog reference signals into high-frequency pulse-width modulation, the amplifier provides compact, panel-mounted power conditioning for automation tasks that demand repeatable positioning, smooth speed regulation, and fast dynamic response. It also supports differential command inputs for improved noise immunity in electrically noisy environments.
During operation, the amplifier delivers a continuous output of 10 A, while short transients can reach 20 A to overcome load inertia. The current-mode bandwidth of 3 kHz supports fast torque tracking, and the 25 kHz PWM frequency places switching noise above most audible frequencies. Torque or velocity control is user-selectable, and both modes accept differential commands. The reference and monitor signals are scaled to ±6 V at ±Ipeak, allowing direct waveform measurement with an oscilloscope. An auxiliary ±5 VDC rail powers the analog interface, while an input amplifier gain of 1.0 V/V preserves controller resolution. The reference network has an impedance of 100 kΩ and tolerates input signals of up to ±20 V.
Thermal protection activates at 70 °C, disabling the drive when the heat sink reaches its temperature limit. The status lines use TTL logic, and the ready output sources at least 2.4 V in the high state. In the low state, the output sinks below 0.5 V, allowing compatible PLC inputs to read the signal without additional buffers. The aluminum housing measures 5.1 × 3.3 × 1.4 in, allowing several amplifiers to share a compact control panel. Matched monitor and reference scaling helps correlate commanded torque with the observed waveform during system setup. The differential input architecture also reduces noise pickup when command signals travel over long cable runs.
