PCE843-001-A
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The Pacific Scientific PCE843-001-A, part of the PC800 - PCE800 Brushless Servo Drives series, operates with a control input voltage range of 85 to 265 VAC. It supports a bus power voltage of 380/400/480 VAC (3-phase) and a peak output current of 15.0 Amps. The servo drive can handle up to 800 kHz quadrature decode line frequency.
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Product Description:
The PCE843-001-A Brushless Servo Drive provides a continuous output current of 3.75 Arms to provide reliable support for extended load conditions. Made by Pacific Scientific, it’s designed for continuous use at an altitude up to 1500 meters (5000 feet).
The startup sequence of this drive is protected by an inrush pulse width of 1 millisecond, providing smooth power without sacrificing sensitive components. The PCE843-001-A servo drive has an output current ripple frequency of 16 kHz, which helps to provide stable drive control and lower electrical noise. During short high-power bursts, it features a peak output current of 7.5 Arms for instant acceleration or torque variations during heavy-duty motion cycles. Also, this servo drive’s 0.6-microsecond minimum fast decode pulse width ensures precise pulse interpretation and improves response accuracy. For energy regulation, this drive contains a shunt regulator with a 10 kW peak power for 300 milliseconds to ensure controlled dissipation of excess energy. This drive’s external regeneration duty cycle is limited to 6 percent to safeguard it in case of repetitive deceleration cycles. Furthermore, its external regeneration resistor value of 66 Ω ensures the regeneration events are properly managed without overloading connected circuits.
It has an input voltage range of 85VAC to 265VAC (RMS), making it a good option for installations where voltage conditions fluctuate greatly. Its efficiency is an inherent characteristic, as it boasts a power stage efficiency of 97 percent to minimize conversion losses and maximize overall system reliability. Its communication is facilitated through a SERCOS interface, which supplies high-speed, deterministic data interchange with controllers and supports integration into next-generation automation networks. Its total weight of 3.6 kilograms yields a balance between its miniature design and mechanical strength. The PCE843-001-A servo drive resists tough storage and operating conditions, with a temperature range of -40°C to 70°C.
Frequently Asked Questions about PCE843-001-A:
Q: Why is the 10 kW shunt regulator rating important in PCE843-001-A?
A: It safely manages excess energy during regenerative events. This prevents overvoltage conditions and protects internal circuits.
Q: How does the 16 kHz ripple frequency improve drive stability?
A: It minimizes electrical noise and supports smoother motor operation. This ensures precise control in applications requiring continuous accuracy.
Q: How does the 66 Ω external regen resistor function in this drive?
A: It dissipates regenerated energy into heat during braking. This maintains voltage levels and protects connected equipment.
Q: What advantage does the SERCOS interface provide in PCE843-001-A?
A: It delivers deterministic communication for precise control cycles. This reduces latency in high-speed automation networks.
Q: Why is a 0.6 µSec minimum fast decode pulse width critical?
A: It enables accurate interpretation of high-frequency pulses. This enhances synchronization between the motor and controller.
