Product Description:1326AB-B2C-21

The 1326AB Torque Plus Series Servomotors are an addition to the popular 1326AB Servomotor line. The Torque Plus motors feature a specially engineered housing to provide reduced length and increased torque ratings from 2.7 to 56.5 N-m (24 to 500 lb-in.). These high performance, three-phase, brushless, AC, synchronous servomotors are designed by Allen-Bradley to meet the stringent requirements of high performance motion systems. This series of AC servomotors is intended to be used with the Allen-Bradley 1391 Digital (1391–DES) AC Servo Drive (230V AC input). The typical speed-torque curve shows the operational envelope of different 1326AB Torque Plus/1391–DES drive combinations.

Features:1326AB-B2C-21

• Special flux profile permanent magnets engineered by Allen-Bradley that provide increased servo response.
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  A three-phase, sinusoidally wound stator field for direct transfer of heat to ambient temperature, and smooth operation at low speeds.
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  A brushless resolver supplies position, commutation and velocity feedback information. This also provides durability in harsh environments as on-board electronics in the motor. 1391 A Quad B (optional) encoder output (adjustable from 512 to 2048 ppr) is generated via resolver feedback.
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  100% continuous rated output torque at stall (zero rpm).
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  A precision balance of 0.0127 mm (0.0005 in.) total peak–to–peak displacement.
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  A UL Listed insulation system (file #E57948).
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  The ability to be vertically mounted at any angle with the shaft up or down.
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  TENV construction. The aluminum housing has fins that provide increased heat transfer.
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  IEC 529 enclosure protection IP65 (when used with the Shaft Seal option) to withstand harsh environments. The motor is dust-tight and able to withstand pulsating water jets. Important: 1326AB Torque Plus servomotors lose the IP65 rating when an externally mounted encoder package is used.
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  A normally closed thermal switch in the motor winding (rated 115V AC at 1A, 24V DC at 1A) that provides thermal overload indication.
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  Environmentally sealed power and feedback cable packages. Power and resolver feedback cables can be ordered in tray or cable track style for lengths up to 300 ft.
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  MIL spec connectors.
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  CEI/IEC 72–1: 1991 metric flange mount (-21) with metric shafts.
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  Threaded hole on the face of the shaft for securing couplings

Technical Parameters:1326AB-B2C-21

• Integral spring-set holding brakes with 90V DC (–A4,–A5, –A7) or 24V DC coils (–K4, –K5, –K7). A Power supply (1326–MOD–BPS) is available for 90V DC brakes.

• A Shaft Oil Seal kit, (1326AB-MOD-SSV-xx) for installing a Viton shaft oil seal on a motor in the field. Motor disassembly is not required. When the shaft oil seal is installed, the motor is dust tight, able to withstand pulsating water jets and meets the IP65 requirements of the IEC 529 standard. Important: 1326AB servomotors lose the IP65 rating when an externally mounted encoder package is used.

• Junction box kit (1326AB-MOD-RJxx) available with axially mounted connectors. Connector version allows the motor connectors to be brought out axially to the motor (rather than radially) without further wiring.

• Secondary feedback mounting kits (1326AB-MOD-Mxx) for field installation of an Allen-Bradley Encoder (845H). Note: When using the 1391–DESxx–AQB, an encoder feedback up to 2048 ppr is provided by the drive. This eliminates the need for a secondary feedback device. Important: 1326AB Torque Plus servomotors lose the IP65 rating when an externally mounted encoder package is used.

• Cables for power (1326-CPx...), commutation (1326-CFx... ), and encoders (1326-CEx...) are available in lengths up to 100 ft (30m) for standard and high-flex applications. Power (1326ES–CPxx...) and communication (1326ES–CFx...) cables between 100 ft (30m), and 300 ft (90m) are available when using a 1391–DES drive only.

Applications:1326AB-B2C-21

Tc – Rated torque of motor with windings at rated temperature and an ambient temperature of 40° C.

Tp – The peak torque that can be produced by the motor/drive combination with both at rated temperature. Higher peak torques are permissible where RMS torque is less than or equal to the rated torque (Tc).

Rated Speed – The operating speed of the drive and motor combination at which a minimum of 70% of continuous rated torque (Tc) can be developed. This point is defined with the motor at 25° C.

Rated Operation Area – Boundary of speed-torque curve where the motor and controller combination may operate on a servo basis without exceeding the RMS rating of either

Intermittent Operation Area – Boundary of speed-torque curve where the motor and controller combination may operate in acceleration deceleration mode without exceeding peak rating of either, provided that the duty cycle RMS continuous torque limit is not exceeded.

Continuous Current – Rated current of a motor with windings at a rated temperature and an ambient temperature of 40° C. The controller is operating at a rated ambient temperature of 60° C.

Peak Current – Amount of current that can be applied to the motor without causing damage to the motorElectrical

Time Constant – Time required for the motor to reach 63% of its rated current.

Max. Ambient Temperature – Maximum environmental temperature in which the motor can be operated at rated loads without exceeding its insulation–type temperature rise limits.

Insulation Class – Designation of the operating temperature limits for motor insulation materials.

Thermal Time Constant – Time required for motor windings to reach 63% of continuous temperature rise with constant watts loss. Torque Constant – Amount of torque developed for one ampere of motor current at the stated motor temperature.

Voltage Constant – Value of the generated voltage at a specified speed when the rotor is moved mechanically in the magnetic field. Terminal Resistance – Winding resistance.

Inductance – Winding inductance measured by a step input of zero impedance voltage applied to the locked rotor. Rotor Polar Moment of Inertia – Moment of inertia about the axis of rotation. Motor Weight – Weight of the complete motor (including brake, if supplied) less the weight of options.

Balance – Compensation of rotor weight distribution to reduce vibrational resonance. Motors are factory balanced under running speeds.

Customization:1326AB-B2C-21

• Always follow installation instructions of the cable carrier manufacturer.

• Cabling should be prepared for installation into the cable carrier in such a manner that there are no twists, bends or kinks in the cable.

• It is important to lay out the cabling at least 24 hours before installation to relax any stresses resulting from transit or storage.

• When placing the cable into the cable carrier, the carrier should be laid out flat with the bending direction facing upward. It should then be fitted with the cables in working position. The cables should be laid into the cable carrier and not woven between or around other cables.

• Allow at least 10% clearance between cables and allow cables to be free to move. Use separators between cables.

• The cables must be free to move within the carrier. Do not attach the cables to the carrier or each other. Clamp cables beyond the ends of the carrier. Cycle the carrier several times before clamping.

• Place heavier cables toward track edges, clamping lighter ones in the center.

• Do not pull cables tight against the inner/outer track curves.

Support and Services:1326AB-B2C-21

Our technical support team is available to assist with any issues or questions related to the Other product. We offer a variety of services, including:

• 24/7 phone and email support
• Online documentation and FAQs
• Remote troubleshooting and diagnostics
• On-site repair and maintenance services

Our team of experienced technicians and engineers are dedicated to providing timely and effective solutions to any technical challenges you may encounter with the Other product. Contact us today for more information on our technical support and services.