5131
The Copley Controls DC servo amplifier model 5131 from the esteemed DC Servo Amplifiers series by Copley Controls delivers a compelling balance of power density and compact form factor. This amplifier is rated for a peak output current of 30 A @ 83 V and a continuous output current of 15 A @ 85 V, driven by an input voltage range of 24–90 VDC. With dimensions of 3.82 × 6.57 × 1.37 in and a weight of only 1.1 lb (without heatsink), the 5131 occupies minimal panel space while offering robust performance. The unit furnishes auxiliary DC supplies of +15 VDC output at 5 mA, –15 VDC output at 5 mA, and +5 VDC output at 250 mA to power control electronics. Comprehensive output short-circuit protection is built in, safeguarding both amplifier and motor against fault conditions.
Performance prowess is underscored by a high-frequency switching topology operating at a PWM switching frequency of 25 kHz, which minimizes audible noise and enhances current resolution. The amplifier accommodates a load inductance range of 200 µH–40 mH, ensuring stability with a broad spectrum of motor and cable combinations. Its small signal bandwidth reaches 3 kHz (–3 dB) for rapid control loops, while the reference input stage is a differential design with 94 kΩ impedance and a 20 V maximum rating for precise command signals. Energy efficiency is reflected in a minimum power consumption of 2.7 W at idle. Built-in over/under voltage protection and overtemperature latching features automatically isolate the amplifier upon excursion beyond safe thresholds.
Engineered for harsh industrial environments, the 5131 operates reliably over a 0–70 °C baseplate temperature range and incorporates short-circuit latching to maintain system integrity under transient faults. The compact footprint and lightweight design facilitate seamless integration into motion control cabinets, robotic end-effectors, and automated test fixtures. Combined with Copley Controls’ extensive CANopen and EtherCAT drive interfaces, the 5131 supports scalable architectures in industrial automation, packaging, semiconductor handling, and medical device manufacturing. Its robust protections and versatile I/O make it an ideal choice for engineers demanding high performance, safety, and space-conscious implementations.
