PC842-001-A

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The PC842-001-A brushless servo drive offers a continuous output current of 2.7 A RMS, a peak output current of 5.3 A RMS, convection cooling, and an impressive power stage efficiency of 98%. Part of the PC800 - PCE800 Brushless Servo Drives series by Pacific Scientific, it supports a SERCOS Network interface.

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Product Description:

The PC842-001-A is a high-performance brushless servo drive. This model has good current handling and stable performance. It ensures stable operations in industrial automation systems. It is designed by Pacific Scientific for motion control systems.

The PC842-001-A is part of the Brushless Servo Drives family. It provides a constant current of 7.5 Arms. It can efficiently handle peak current output of up to 15 Arms. It comprises both overvoltage and undervoltage lockout systems. The drive also has over-temperature and short-circuit protection. It monitors the thermal status of the motor via PTC input. It communicates serially via RS-232 and RS-485. The supported instructions are analog ±10V and step/direction. It also supports PWM and velocity/torque control. Digital I/O has four inputs and two outputs. It provides resolver and encoder feedback options. Encoder emulation output is included as standard. Power dissipation is kept to a maximum of 105 W. The bus capacitance is set at 470 µF. It works in temperatures ranging from 0 to 45 degrees Celsius. The storage temperature tolerance is from -40°C to +85°C. The brushless servo drive can handle up to 90% relative humidity. Derating is relevant over 1000 meters in elevation. It cools by convection and forced air. This variant has LED indicators for power and fault. The minimum load inductance supported is 0.1 mH line-to-line. The output frequency range goes up to 500 Hz. The enclosure is IP20 and panel mount suitable.

The PC842-001-A has an industrial-grade design. It measures 13.5 inches tall and 3.4 inches wide. Its depth is 7.3 inches and weighs 8.2 pounds. This type runs across a wide input voltage range. It can handle 180 to 264 VAC or 342 to 528 VAC. It performs best at frequencies of 50 or 60 Hz. Its interface and safety design are suitable for harsh industrial situations. The servo drive is an excellent choice for integrated automation.

Command Interface
SERCOS Network
Continuous Output Current
2.7 A RMS @ 25–40 °C
Continuous Output Current
7.5 Arms
Control Power Input Voltage
85–265 VAC, 47–440 Hz or 130–370 VDC
Cooling
Convection
Maximum Motor Inductance
1 H
Minimum Motor Inductance
1.25 mH
Operating Temperature Range
25 °C to 40 °C
Output Current Ripple Frequency
16 kHz
Peak Output Current
5.3 A RMS
Peak Output Current
15 Arms
Power Stage Efficiency
98%
Relay Output
1 A at 30 VDC, normally open
User 24v Output
24 VDC ±10%, 80 mA max
User 5v Output
5 VDC, short-circuit protected, 250 mA max
  • PC-842-001-A
  • PC842 001 A
  • PC842-001A
  • PC842-OO1-A
  • PC842001A

Frequently Asked Questions about PC842-001-A:

Q: How does the dual input voltage of the PC842-001-A improve flexibility?

A: It allows operation in both 230V and 460V systems without hardware change. This enhances adaptability in varied global industrial installations.

Q: What is the use of analog command input in PC842-001-A?

A: It allows real-time speed or torque control through voltage signals. This enables precise control in analog-based automation systems.

Q: How does encoder emulation benefit the PC842-001-A application?

A: It replicates encoder signals for systems requiring position feedback. This allows the drive to interface with legacy controllers or PLCs.

Q: How does the altitude derating affect the use of PC842-001-A?

A: Above 1000 meters, reduced cooling affects performance and power handling. Users must adjust load or provide forced cooling if altitude exceeds limits.

Q: Why does the PC842-001-A support both resolver and encoder feedback?

A: It supports a wide range of motor feedback technologies. This allows compatibility with diverse motion applications.


Internal Product Review

  • ‘‘The PC842-001-A is a brushless servo drive designed by Pacific Scientific. It features 15 Arms peak current and multiple command inputs including step/direction and analog ±10V. This model is widely used in precision automation tasks like CNC machines, packaging equipment, and robotic assembly systems.’’

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