Reliance Electric 63002-R Tachometer Generator

Reliance 63002-R

More details

Key Features

Technical Specifications

General

Electrical

Mechanical

Performance

Environmental & Compliance

Applications

The 63002-R tachometer generator is suited for industrial applications requiring precise speed feedback:

• Closed-Loop Drive Systems: Provides feedback to DC drives for accurate speed regulation 

• Legacy System Maintenance: Direct replacement for obsolete Reliance tachometers in existing equipment 

• Material Handling: Conveyor and material transport systems requiring consistent belt speed 

• Paper and Converting Machinery: Tension control and speed synchronization applications 

• Extrusion and Processing Lines: Precision speed monitoring for continuous processes

• Servomechanism Loops: System stabilization and feedback in control circuits 

How It Works

The 63002-R operates on the tachometer generator principle: it produces a voltage output directly proportional to the rotational speed of its shaft . When coupled to a motor or driven shaft, the generator converts mechanical rotation into an analog DC voltage signal. This signal is then transmitted to a drive controller or indicator, providing real-time speed data for regulation and monitoring purposes .

The use of DC output provides stable, low-ripple feedback (typically <2%) that allows the connected drive to maintain smooth motor control, preventing hunting or oscillation during operation .

Important Notes

• This is a legacy component originally manufactured in or before 1963; new units may be available as new old stock (NOS) or refurbished 

• The 63002-R may also be found under Baldor Reliance or ABB branding due to corporate changes 

• Part numbers 63002 and 63002R are considered interchangeable variants 

• Proper polarity verification is essential during installation; incorrect connection may result in hazardous speeds 

• The generator features a brush-type DC design and requires periodic maintenance, including commutator cleaning and brush replacement 

FAQ

Q1: What is the function of the 63002-R?

A: The 63002-R is a DC tachometer generator that converts rotational speed into a proportional DC voltage signal. It provides speed feedback to drive controllers, enabling precise motor speed regulation in industrial automation systems .

Q2: What is the output voltage of the 63002-R?

A: The generator is calibrated to produce 28.0 V DC at a shaft speed of 1000 RPM .

Q3: What is the speed range of this tachometer generator?

A: The rotor speed rating is from 100 RPM (low full load) to 3000 RPM (high full load) .

Q4: What is the NSN for this part?

A: The National Stock Number is 6680-00-618-9306 .

Q5: Is the 63002-R interchangeable with the 63002?

A: Yes, part numbers 63002 and 63002R are listed as interchangeable alternates and share the same NSN .

Q6: Is the 63002-R still in production?

A: This is a legacy component, and all original manufacturers have retired this model. However, it may still be available as new old stock or refurbished units through industrial automation suppliers .

Q7: Does this part contain hazardous materials?

A: The hazardous material indicator is N, indicating no hazardous materials have been identified for this NSN .

Q8: What is the accuracy of the 63002-R?

A: The accuracy range is ±1.0% of the calibrated output .

Q9: What type of maintenance does this tachometer require?

A: As a brush-type DC generator, it requires periodic maintenance, including inspection and cleaning of the commutator, and brush replacement when worn. Annual inspections are recommended for industrial applications .

Q10: Can the 63002-R be mounted vertically?

A: Yes, the unit supports both horizontal and vertical mounting positions .