1FK7083-2AF71-1QB0 1FK7 Compact Servo Motor 16Nm 3000rpm

The 1FK7083-2AF71-1QB0 is a 1FK7 Compact permanent-magnet synchronous servo motor designed for dynamic positioning and speed-control axes.

It provides a static torque of 16 Nm and a rated speed of 3000 rpm, with a rated output of approximately 3.3 kW under the specified operating conditions.

This QB0 configuration combines a 20-bit single-turn absolute encoder with a DRIVE-CLiQ interface, a feather-key shaft and a motor design without an integrated holding brake.

The single-turn absolute encoder provides an absolute rotor position within one mechanical revolution. Unlike a multiturn encoder, it does not retain the number of completed shaft revolutions as part of the encoder position value.

The feather-key shaft is intended for mechanically positive torque transmission to a coupling, pulley or gearbox input. Because this version does not include a holding brake, it is most suitable for horizontal or mechanically secured axes where an integrated motor brake is not required.

The motor uses natural cooling, avoiding the need for a separately powered external fan in the standard configuration.

Key Features

• 16 Nm static torque
• 3000 rpm rated speed
• 3.3 kW rated output
• 20-bit single-turn absolute encoder
• DRIVE-CLiQ feedback interface
• Feather-key shaft
• No integrated holding brake
• Natural cooling
• Rotatable power connector
• Compact servo-motor construction

Typical Applications

• Conveyor positioning axes
• Packaging machinery
• Printing equipment
• Rotary indexing systems
• Gearbox-driven machine axes

16 Nm Torque Class

The 1FK7083-2AF71-1QB0 belongs to the 16 Nm static-torque class.

This output level is suitable for machine axes requiring more torque than smaller 1FK7042 or 1FK7063 motors while retaining a compact servo architecture.

Typical load functions include:

• Driving medium-size indexing tables
• Operating conveyor sections
• Turning gearbox inputs
• Moving packaging-machine mechanisms
• Controlling rotary handling equipment
• Driving feed and winding mechanisms

Motor selection must be based on the complete torque-speed curve rather than only the 16 Nm static-torque value.

3000 rpm Rated-Speed Configuration

The AF71 winding configuration is associated with a rated speed of 3000 rpm.

This makes the motor suitable for applications requiring a balance between:

• Continuous torque
• Dynamic acceleration
• Mechanical speed
• Gearbox compatibility
• Machine-cycle response

It should be distinguished from 4500 rpm versions within the same motor size, which use different winding and performance configurations.

20-Bit Single-Turn Absolute Encoder

The QB0 configuration uses a 20-bit single-turn absolute encoder.

A 20-bit single-turn encoder can represent more than one million distinct positions within one mechanical revolution.

The encoder supports:

• Rotor-position detection
• Closed-loop speed control
• Motor commutation
• Positioning feedback
• Direction monitoring
• Repeatable axis operation

The encoder provides absolute position within one revolution but should not be described as a multiturn encoder.

Single-Turn vs Multiturn Feedback

Single-Turn Absolute Encoder

Reports an absolute angular position within one shaft revolution.

Does not independently preserve the number of completed revolutions.

Multiturn Absolute Encoder

Reports both angular position and the number of shaft revolutions within its multiturn range.

The correct encoder configuration must match the machine homing and position-retention requirements.

DRIVE-CLiQ Interface

The encoder communicates with a compatible drive system through DRIVE-CLiQ.

Typical functions include:

• Automatic motor identification
• Electronic nameplate transfer
• Encoder-data communication
• Temperature-data transmission
• Drive commissioning support
• Fault diagnostics
• System topology detection

A compatible Motor Module, Control Unit, motor cable and DRIVE-CLiQ connection are required.

Feather-Key Shaft

The motor is supplied with a shaft using a feather key.

This configuration supports positive torque transmission to components such as:

• Gearbox couplings
• Timing-belt pulleys
• Chain sprockets
• Mechanical drive couplings
• Rotary machine mechanisms

The coupling or mounted component must be correctly balanced and installed according to the shaft-load limits.

No Integrated Holding Brake

The 1FK7083-2AF71-1QB0 does not include an integrated holding brake.

This makes it suitable for:

• Horizontal motion axes
• Mechanically self-locking systems
• Applications with an external brake
• Axes that do not need holding torque after power removal

For vertical or gravity-loaded axes, the machine designer must provide an appropriate holding or safety arrangement.

Holding Brake vs No-Brake Version

No-Brake Motor

Lower mechanical complexity

No brake wiring

Suitable where shaft holding is not required

Motor with Holding Brake

Provides a mechanical holding function after the axis stops

Requires brake control and power wiring

Often selected for vertical or suspended loads

A holding brake is not a service brake and should not be used for continuous dynamic stopping unless specifically approved.

Natural Cooling

The motor dissipates heat through its housing by natural convection and conduction through the mounting flange.

Reliable operation requires:

• Correct mechanical mounting
• Adequate heat transfer through the flange
• Unobstructed airflow
• Approved ambient conditions
• Operation within the torque-speed limits
• Correct drive parameterization

The motor should not be described as fan-cooled unless an approved external cooling arrangement is specifically installed.

Compact Motor Construction

The 1FK7 Compact design is intended for applications where short motor length and dynamic response are important.

Typical advantages include:

• Reduced installation depth
• Lower rotor inertia than torque-oriented motor designs
• Faster acceleration response
• Easier integration into compact machinery
• Suitable performance for cyclic positioning

The exact acceleration performance depends on the reflected load inertia, coupling, gearbox and drive settings.

Motor and Drive Integration

A complete servo axis normally includes:

• Compatible drive Control Unit
• Motor Module
• Power supply or Line Module
• Motor power cable
• DRIVE-CLiQ encoder connection
• 1FK7083-2AF71-1QB0 motor
• Mechanical coupling or gearbox
• Approved motor parameters

The motor cannot operate directly from a standard three-phase mains supply.

Replacement Identification

Correct Model Number

1FK7083-2AF71-1QB0

Motor Family

1FK7 Compact

Static Torque

16 Nm

Rated Speed

3000 rpm

Encoder Configuration

20-Bit Single-Turn Absolute Encoder

Shaft Configuration

Feather-Key Shaft

Holding Brake

Not Included

Before replacement, confirm:

• Complete order number
• 2AF71 winding code
• QB0 encoder and shaft suffix
• Rated torque and speed
• Motor connector orientation
• Shaft dimensions
• Brake requirement
• Encoder compatibility
• Drive firmware
• Motor cable
• Mechanical mounting dimensions

Do not select the replacement using only the 1FK7083 family number.

Installation Guidelines

Disconnect and secure the drive-system power.

Wait for the DC link to discharge fully.

Verify the absence of hazardous voltage.

Support the motor during removal.

Record the power and encoder connections.

Confirm the complete order number.

Inspect the motor flange and shaft.

Check the feather key and coupling.

Install the motor without applying impact force to the shaft.

Align the driven load correctly.

Connect the motor power cable.

Connect the DRIVE-CLiQ encoder interface.

Restore the approved motor parameters.

Test rotation at reduced speed.

Check vibration and operating current.

Verify machine safety functions before production use.

Installation should be completed by qualified servo-drive personnel.

FAQ

Q1: What is 1FK7083-2AF71-1QB0?

A1: It is a 1FK7 Compact permanent-magnet synchronous servo motor with 16 Nm static torque and a 3000 rpm rated speed.

Q2: What is its rated power?

A2: The rated output is approximately 3.3 kW under the specified operating conditions.

Q3: Which encoder does it use?

A3: It uses a 20-bit single-turn absolute encoder with a DRIVE-CLiQ interface.

Q4: Is the encoder multiturn?

A4: No. The QB0 configuration uses a single-turn absolute encoder.

Q5: Does the motor have a holding brake?

A5: No. This specific configuration does not include an integrated holding brake.

Q6: What shaft type is supplied?

A6: It has a shaft with a feather key.

Q7: What cooling method does it use?

A7: It uses natural cooling.

Q8: Can it connect directly to an AC mains supply?

A8: No. It requires a compatible servo-drive system and Motor Module.

Q9: Is it suitable for a vertical axis?

A9: It may be used only when the machine provides an appropriate external holding or safety arrangement, because this version has no integrated brake.

Q10: Is the product still active?

A10: Yes. Current product information identifies the model as an active product.