Copley Controls Corp 800-262 DC Brush Servo Amplifier

The Copley Controls Corp 800-262 is a four-quadrant DC brush servo amplifier engineered for precision motor control across industrial applications. This MOSFET H-bridge output stage accepts standard ±10V control signals and operates in torque, velocity, or voltage feedback modes with IR compensation. Configurable via internal 40-pin header socket, the amplifier allows gain and current-limit adjustment without soldering, accommodating load inductance from 200 µH to 40 mH. Individual peak and continuous current limits, plus a settable peak current time limit, protect against motor and amplifier overload while enabling high-acceleration performance. The unit includes output short-circuit and heatplate overtemperature protection.

## Technical Specifications

• **Input Supply:** +24 to +225 VDC unregulated
• **Control Signal Input:** Differential reference, ±10V maximum, 100 kΩ input impedance
• **Peak Output Current:** 10 to 30 A (selectable)
• **Continuous Output Current:** 5 A
• **Maximum Output Voltage:** 50 V
• **PWM Switching Frequency:** 25 kHz
• **Load Inductance Range:** 200 µH to 40 mH (header-selectable)
• **Logic Input Voltage:** 0 to +24V
• **Reference Gain Pot:** Attenuates input 100% to 0%

## Key Features

• Four-quadrant bidirectional acceleration and deceleration
• Selectable enable inputs with ground-to-enable or ground-to-inhibit logic configuration
• Settable peak current time limit matching motor thermal and commutation requirements
• LED status indicators (green for normal operation)
• Compact form factor: 0.17 lbs

## Control Modes

• Torque mode
• Velocity mode with brush-tachometer feedback or open-loop speed control
• Voltage feedback mode with IR compensation for tachless operation

## Typical Applications

Precision industrial motor control, servo-driven automation, open-loop and closed-loop speed regulation, and applications requiring flexible current-limit configuration.