PC843-001-A
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The PC843-001-A drive, part of the Pacific Scientific PC800 - PCE800 Brushless Servo Drives, operates with a continuous output current of 3.6A RMS at 25-40°C. It boasts a peak output current of 10.6A RMS and a high power stage efficiency of 97% at Pcont. Designed for optimal performance, it supports an input voltage range of 323VAC to 528VAC.
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Product Description:
The PC843-001-A is a 3-axis drive model by Pacific Scientific. It is designed for precise motion control and provides reliable performance in small systems. It supports standard firmware and provides seamless multi-axis operation. It belongs to the reliable PC800 - PCE800 Brushless Servo Drives series.
The Pacific PC843-001-A can handle single or three-phase power at 50 or 60 Hz frequency. The drive can withstand a nominal bus voltage of up to 340 VDC. Each axis generates 3 Arms of constant current output. It reaches a maximum current of 9 Arms per axis during load surges. The rated power output is 1.5 kW per axis. It supports brushless servo motors such as PMA and N-Series. Resolver-based feedback is provided as standard, with optional hall sensor inputs. The drive has ±10 V analog input and RS232/RS485 interfaces. The addition of digital I/O expands the possibilities for integration. It interacts via Modbus RTU and supports fieldbus interface modules. The overall weight is around 15.8 pounds which is sufficient for panel installations. It uses convection cooling through an inbuilt heatsink with an optional fan. To ensure safety, mounting is done with a chassis grounding stud. The humidity range supported is 0 to 90% non-condensing. It maintains full function at altitudes up to 2000 meters. Built-in safeguards include overvoltage and undervoltage cutoffs. Additional safety features address over-temperature and over-current conditions. A brake control relay maintains shaft stability during power outages. The regenerative braking feature increases energy handling and system efficiency.
The Pacific PC843-001-A drive operates at temperatures ranging from 0°C to 45°C. It can be stored at temperatures as low as -40°C. The dimensions are a height of 12.8 inches and a width of 6.8 inches. The integration-ready communication interfaces facilitate system deployment. With improved safety, feedback compatibility, and adjustable control, the module provides constant motion performance.
Frequently Asked Questions about PC843-001-A:
Q: How does regenerative braking improve efficiency in PC843-001-A?
A: Regenerative braking dissipates excess energy during deceleration through a resistor. This reduces energy waste and improves thermal performance.
Q: Why does PC843-001-A support both RS232 and RS485 interfaces?
A: RS232 allows point-to-point configuration while RS485 supports multi-axis control. This flexibility enhances integration in varied industrial setups.
Q: How does PC843-001-A handle encoder emulation from resolver inputs?
A: It converts resolver signals into quadrature outputs. This allows compatibility with systems expecting encoder feedback.
Q: What is the function of the brake control relay in PC843-001-A?
A: The brake relay activates during power loss to hold the motor shaft. This prevents unwanted motion in vertical or load-sensitive systems.
Q: How does the PC843-001-A support safe operation in fluctuating environments?
A: The unit withstands wide input voltages and temperature variations. This ensures stable operation even with unstable power or ambient changes.
