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Allen Bradley 1395 Drives 1395-B77-C4-P11

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1395-B77-C4-P11

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The Allen Bradley 1395-B77-C4-P11 is a microprocessor digital DC drive designed for high-performance applications. This drive offers a regenerative horsepower rating of 125 HP and operates on a wide AC input supply of 150 to 460 VAC for three-phase and 115 VAC for single-phase control.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 1395-B77-C4-P11

ManufacturerAllen Bradley
Product TypeMicroprocessor digital DC drive
Product Line1395 Drives
Part Number1395-B77-C4-P11
Weight160.00 lbs (72.57 kg)
Horsepower rating125 HP regenerative
Input AC supply150-460 VAC 3-phase and 115 VAC 1-phase control
Output DC voltage240/400/500 V (depends on input)
Continuous output current36 to 980 A
Field output120-300 VDC, 150 mA to 40 A
Overload capacity150% (1 min), 200% (10 s), 260% (5 s)
Speed regulation (encoder)001% (10:1), 0001% (100:1)
Armature converter12-SCR full-wave regenerative
Discrete I/O (main)4 inputs (24/120 V), 2 dry relay outputs
Analog I/O (main)4 inputs (±10 V), 4 outputs (±10 V)
Encoder feedbackDual-channel 12 V isolated, 102.5 kHz
Communication portsRS-422; optional RIO or DH+
Option installedDiscrete 24 VDC adapter on Port A
Accel/decel range01 to 6554 sec.
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The 1395-B77-C4-P11 module from Allen Bradley stands as a digital DC drive featuring sophisticated microprocessor technology. It excels in regenerative applications, rated for 125 horsepower, allowing for efficient energy recovery during operation. The device accommodates a flexible input voltage range that spans from 150 to 460 VAC in three-phase configurations and 115 VAC in single-phase for control tasks, thereby versatile in various setups.

Its output DC voltage can be configured to 240, 400, or 500 volts, contingent on the input specifications. Delivering continuous output currents from 36 to 980 amperes allows the 1395 drive to meet extensive operational requirements. The field output ranges between 120 and 300 VDC, capable of handling electrical demands from 150 mA to a maximum of 40 A effectively.

The drive provides impressive overload capabilities, including 150% for one minute, 200% for ten seconds, and 260% for five seconds, underlining its resilience during sudden demands in current. For speed regulation, it achieves exceptional performance, maintaining precision of 0.01% at a 10:1 ratio and an even finer resolution of 0.001% at a 100:1 ratio.

Inside, the armature converter employs a 12-SCR full-wave regenerative design, further enhancing its operational efficiency. The drive incorporates discrete I/O with four inputs that operate at 24 or 120 volts and includes two dry relay outputs, as well as four analog inputs and outputs, both rated at ±10 V.

For robust signal processing, the encoder feedback utilizes a dual-channel system operating at 12 V and isolated at a frequency of 102.5 kHz, ensuring reliable performance. Communication is facilitated through RS-422 ports, with optional Remote I/O (RIO) or Data Highway Plus (DH+) capabilities available. Additionally, a discrete 24 VDC adapter is installed on Port A, expanding its functionality.

The acceleration and deceleration ranges of the drive can be finely tuned between 1 second and 6554 seconds, allowing for smooth adjustments based on application needs.

Revision Part #Also known as
1395-B77-C4-P11 Ser A1395-B77-C4-P11/A, Series A, Rev A
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