Kollmorgen TT-2043-1011-B DC Servo Motor (Internal Rotor Low Voltage Medium Size)

I. Product Overview

TT-2043-1011-B is a Kollmorgen Inland TT series internal rotor structure, low voltage medium-sized, brushless DC servo motor with a built-in high-stability coaxial analog tachometer generator. This model adopts the NEMA 23 (60mm) standard frame, 110VDC low voltage power supply, 9.5Nm rated torque, 4000rpm maximum speed, IP44 protection, 12.7mm keyway shaft, single-channel circular connector, dual PTC thermal protection, and focuses on internal rotor efficient heat dissipation, low voltage high torque density, analog tachometer closed loop, industrial-grade stability, designed specifically for 110V low-voltage DC bus, medium-sized precision positioning, efficient continuous operation, high-reliability analog servo, etc. for industrial scenarios.

II. Model Code Interpretation (TT-2043-1011-B)

TT: Kollmorgen DC Servo Motor + Built-in Coaxial Tachometer Generator Standard Series

2043:

20: Frame Diameter Base Code (2.0 inch level, NEMA 23 standard, 60mm × 60mm)

43: Motor Length / Structure Code (Extended body, high torque internal rotor structure)

1011:

10: Armature Winding Specification (10th low-voltage special winding, 110VDC rated voltage)

11: Tachometer Generator Specification (11th high stability, low ripple analog tachometer feedback)

B:

Installation / Shaft / Protection / Connection: B-type square flange installation, 12.7mm standard keyway shaft, IP44 protection, single-channel circular connector, built-in dual PTC thermistor thermal protection

III. Core Technical Parameters

(1) Electrical Parameters (DC Servo)

Rated Voltage: 110VDC (compatible with 90~130VDC wide voltage)

Continuous Stalling Torque: 9.5Nm (7.0lb-ft)

Peak Torque: 28.5Nm (3× overload, short time)

Continuous Current: 15.8A

Peak Current: 47.4A

Torque Constant (Kt): 0.60Nm/A

Reverse Electromotive Force Constant (Ke): 7.5V/1000rpm

Armature Resistance: 0.45Ω

Armature Inductance: 0.42mH

Rated Speed: 3000rpm

Maximum Speed: 4000rpm

Regulation Method: Gold-plated composite brush (long life, low sparks)

Insulation Class: F Class (155℃)

Thermal Protection: Built-in dual PTC thermistor (over-temperature cut-off protection)

(2) Tachometer Parameter

Feedback Type: Coaxial DC Tachometer Generator (pure analog, no power supply required)

Output Sensitivity: 5.0V/1000rpm (±0.5% linearity)

Output Ripple: <1.0% (peak-to-peak)

Linearity: ±0.4% (full speed range)

Output Impedance: <80Ω

(3) Mechanical Parameters

Frame Size: NEMA 23 (60mm × 60mm square flange)

Shaft Diameter: 12.7mm (1/2") (standard 4×4×20mm keyway)

Rotor Inertia: 0.00085kg·m²

Overall Weight: 5.4kg

Bearings: Double-row precision ball bearings

Mechanical Life: ≥15,000 hours (rated conditions)

Cooling Method: Natural Convection (TENV)

(4) Environment and Connection

Protection Grade: IP44 (splash-proof, dust-proof)

Operating Temperature: -20℃ ~ +65℃

Storage Temperature: -40℃ ~ +85℃ Connector: 1× Circular connector (Power + Feedback + Temperature Integrated)

Certification: CE, UL, cURus, RoHS

V. Core Product Features

Internal rotor efficient heat dissipation design

Adopting the "inside-out" internal rotor structure, the windings are directly attached to the casing, significantly improving the heat dissipation efficiency, with high torque density and supporting continuous operation at 110V low voltage.

110V low-voltage NEMA 23 medium platform

110VDC safe low-voltage, 60mm square flange body output 9.5Nm continuous torque, compatible with 110V low-voltage DC busbars, small-sized precision equipment.

Highly stable and low ripple speed feedback

11-pin specification speed sensor, 5.0V/krpm stable output, <1.0% low ripple, ±0.4% high linearity, pure analog signal, perfectly compatible with 110V low-voltage analog servo controller.

Industrial-grade long-life reliable design

Gold-plated composite brushes, long lifespan, dual PTC thermal protection + IP44 protection + all-metal body, suitable for harsh industrial environments, 24-hour continuous operation.

Standard industrial interface

NEMA 23 standard square flange, 12.7mm standard keyway shaft, 110VDC, IP44 protection, single-channel integrated connector, highly versatile, plug-and-play.

VI. Typical Application Scenarios

Small and medium-sized industrial machines: CNC lathes, grinding machines, small processing centers, precision worktables

Industrial robots: Small-sized joint drives, lightweight mechanical arms, assembly robots

Automation equipment: Packaging machinery, printing machinery, textile machinery, semiconductor equipment

Low-voltage analog servo systems: Retrofitting of old industrial low-voltage servo systems, military low-voltage analog control, high-reliability without bus scenarios

Precision instruments: Coordinate measuring machines, laser equipment, inspection instruments, optical positioning platforms

VII. Accessories and Selection Suggestions

Compatible drivers: Kolmos Goldline 110V, B-800 series; third-party 110VDC analog DC servo drives

Recommended cables: 4×2.5mm² (power, shielded), 6×0.75mm² (feedback), shielded twisted pair

Maintenance: Brushes can be replaced on-site, support commutator grinding, extend lifespan

Comparison selection: Compared with TT-4200 series (NEMA 42), smaller in size, lower voltage, suitable for small-sized equipment; compared with TT-1000 series (NEMA 17), greater torque, higher power.

VIII. Summary of Product Advantages

TT-2043-1011-B is NEMA 23, 110VDC low-voltage, 9.5Nm torque, internal rotor efficient heat dissipation, 5.0V/krpm highly stable speed feedback, IP44, F-class insulation, 12.7mm standard shaft, industrial-grade long-life standard low-voltage DC servo. Core advantages: Internal rotor structure, efficient heat dissipation, low-voltage high torque density, highly stable analog speed feedback, long lifespan and reliability. Perfectly meets the requirements of industrial-grade 110V low-voltage, small-sized, high precision, high reliability, analog closed-loop equipment drives, is an ideal choice for small-sized automation equipment and low-voltage servo systems upgrades.