S70602-NANANA Kollmorgen
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The S70602-NANANA is a servo drive manufactured by Kollmorgen as part of the S700 Servo Drives series. It has a rated current of 6 Arms and a voltage rating of 208 to 480 Volts, with onboard EtherCAT and CANopen. The drive has a weight of 4.4 kg, a height of 345 mm, and supports dual channel STO safety.
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Product Description:
The S70602-NANANA servo drive is produced by Kollmorgen as a member of the S700 Servo Drives series. It is a standalone controller that regulates torque, velocity, and position of synchronous motors in factory cells, packaging lines, and material-handling equipment. Supporting EtherCAT and CANopen on its base hardware, the unit integrates with PLC architectures and provides closed-loop axis control for applications that require fast response, repeatable positioning, and stable speed regulation under changing loads. The controller is well suited for indexing axes, conveyors, and transfer systems that need smooth motion and accurate command tracking.
Physically, the drive has a depth of 243 mm without connectors and a narrow width of 70 mm, which helps it fit into compact control cabinets. The front panel height is 345 mm, and the housing mass is 4.4 kg, so the unit remains a compact cabinet-mounted controller. The power stage is rated for a continuous output of 6 Arms and accepts line supplies from 208 to 480 V, delivering up to 4.5 kVA of input power to matched motors. The wide input range allows operation on common industrial mains without requiring a voltage-specific version. The output current form factor of 1.01 helps keep electrical loading stable, and the unit can provide peak current for short overloads lasting up to 2 s. A minimum motor inductance of 3.7 mH at 400 V helps prevent overcurrent trips, while dual-channel STO supports emergency stop circuits and the internal brake circuitry can absorb 75 W during deceleration.
Under rated load, the electronics dissipate 100 W, so panel ventilation must remove that heat during operation. The built-in brake resistor is rated at 33 ohms and helps handle regenerated energy from vertical or high-inertia axes without an external module. By absorbing braking energy internally, the drive can reduce the need for extra cabinet components in moderate deceleration profiles. Switching devices operate at 8 kHz, while maximum noise emission stays below 58 dB(A), which helps limit audible switching noise in panel-mounted systems. This model uses standard PCBs only, and its onboard fieldbus interfaces remove the need for a separate expansion card.
243 mm
No expansion card , EtherCAT&CANopen onboard
345 mm
75 W
33 Ohm
58 dB(A)
- S-70602-NANANA
- S-70602NANANA
Instructions
How to Determine What Torque You Need for Your Servo Motors
When building a robotic system with servo motors, determining the appropriate torque for each motor is essential. Torque is what allows the servo motor to effectively lift, hold, or move an object. Without sufficient torque, your motor either won’t perform as expected or may damage itself trying.
Here, we’ll break down how to calculate the torque you need, then pivot into some key nuances around how torque works in different contexts.
What Is Torque?
Torque is a force applied over a distance that causes rotation. You use torque every day when you twist open a jar or turn a doorknob. In the case of servo motors—specifically in robotics—torque determines how much weight a motor can rotate at a certain distance away from its axis. Think about a robotic arm lifting a heavy object: the motor's torque directly affects how much weight the arm can lift, and at what speed.
Mathematically, torque is expressed as:
τ = r × F
- τ is torque,
- r is the distance from the axis of rotation,
- F is the force applied.
If that feels abstract, consider that F is usually the force caused by gravity, meaning it depends on the weight of the object and its distance from the motor's center.
Torque and Servo Motors: The Core Relationship
Servo motors are frequently used in robotic arms or other machines with rotational mechanisms. The amount of torque a servo motor can exert determines its capability to perform mechanical tasks, especially when dealing with varying loads.
The lever arm length—the distance from the rotation point to the load—amplifies the effect of the weight being moved. A longer lever arm requires more torque even if the weight remains the same. So, as we dive into calculations, remember that torque isn't just about force; it’s also about how far away from the motor's axis that force is applied.
Formula Recap
The standard torque equation for servo motors typically used in applications like robotic arms can be expanded slightly:
τ = r × m × g
- r is the distance from the motor's axis to where the load is applied,
- m is the mass of the item being moved (in kilograms),
- g is the acceleration of gravity (~9.81 m/s²).
Let’s translate this into something more immediately practical: a robotic arm needs torque to lift an object at the end of the arm. If the arm is long, you’ll need more torque to achieve that same lift, even if the object you’re lifting doesn’t change in weight.
Components of Torque in Servo Motors
1. Weight of Components
The force caused by the weight of objects being moved is simple physics. Every load you expect the motor to handle has a weight. Multiplied by gravity, that’s your F.
A robotic arm lifting a box must overcome the weight of the box. However, the motor also needs to account for the weight of the components themselves, like robotic arm links or grippers.
2. Distance from the Pivot
The lever arm length is just as crucial. Calculating torque by only considering force and weight without factoring in the arm’s length will result in inaccurate torque requirements and potentially a poor design.
Case Study: A Simple Robotic Arm
Imagine an arm that needs to lift a 1.5 kg box at the end of a 0.5-meter-long arm.
- m = 1.5 kg
- r = 0.5 m
- g = 9.81 m/s² (constant)
We’re now ready to plug in values:
τ = r × m × g
τ = 0.5 m × 1.5 kg × 9.81 m/s²
τ = 7.36 Nm
This means you require a minimum torque of 7.36 Newton-meters (Nm) to lift the box at the end of this particular robotic arm.
Angular Acceleration
In any instance where you need the servo motor to move a load and not just hold it, you must also account for angular acceleration. Angular acceleration means your motor needs extra torque at the beginning and during changes in movement. To calculate it:
τ = I × α
- I is the moment of inertia of the robot arm (resistance to angular motion),
- α is angular acceleration.
This means that for movements such as high-speed rotations or rapid direction changes, torque requirements jump. The speed with which the load moves and how quickly the direction changes are factored into torque calculations for dynamic motion.
Final Thoughts
To summarize everything, calculating torque isn’t just as simple as deciding how heavy a load is. It requires you to think about:
- Distance (where the weight is applied from the axis),
- Weight of the object being moved,
- The weight of other mechanical components (like links and joints inside the machine),
- Angular acceleration, especially if the motor will be moving or changing directions rapidly,
- Safety margins (plan a buffer of 20-30% torque capability beyond the minimum).
The general idea is that the larger the load or the further away from the pivot, the more torque you need. By thinking through all of these details, you can properly size your servo motor torque needs, ensuring your motor will handle everything smoothly without underperformance during operation.
Get expert servo motor guidance and competitive pricing from Wake Industrial. Whether you need one motor or a complete system, we'll help you find the right solution at the right price. Call 1-919-443-0207 now for a quick quote or email sales@wakeindustrial.com to browse our extensive servo motor inventory.
Instructions
How to Determine What Torque You Need for Your Servo Motors
When building a robotic system with servo motors, determining the appropriate torque for each motor is essential. Torque is what allows the servo motor to effectively lift, hold, or move an object. Without sufficient torque, your motor either won’t perform as expected or may damage itself trying.
Here, we’ll break down how to calculate the torque you need, then pivot into some key nuances around how torque works in different contexts.
What Is Torque?
Torque is a force applied over a distance that causes rotation. You use torque every day when you twist open a jar or turn a doorknob. In the case of servo motors—specifically in robotics—torque determines how much weight a motor can rotate at a certain distance away from its axis. Think about a robotic arm lifting a heavy object: the motor's torque directly affects how much weight the arm can lift, and at what speed.
Mathematically, torque is expressed as:
τ = r × F
- τ is torque,
- r is the distance from the axis of rotation,
- F is the force applied.
If that feels abstract, consider that F is usually the force caused by gravity, meaning it depends on the weight of the object and its distance from the motor's center.
Torque and Servo Motors: The Core Relationship
Servo motors are frequently used in robotic arms or other machines with rotational mechanisms. The amount of torque a servo motor can exert determines its capability to perform mechanical tasks, especially when dealing with varying loads.
The lever arm length—the distance from the rotation point to the load—amplifies the effect of the weight being moved. A longer lever arm requires more torque even if the weight remains the same. So, as we dive into calculations, remember that torque isn't just about force; it’s also about how far away from the motor's axis that force is applied.
Formula Recap
The standard torque equation for servo motors typically used in applications like robotic arms can be expanded slightly:
τ = r × m × g
- r is the distance from the motor's axis to where the load is applied,
- m is the mass of the item being moved (in kilograms),
- g is the acceleration of gravity (~9.81 m/s²).
Let’s translate this into something more immediately practical: a robotic arm needs torque to lift an object at the end of the arm. If the arm is long, you’ll need more torque to achieve that same lift, even if the object you’re lifting doesn’t change in weight.
Components of Torque in Servo Motors
1. Weight of Components
The force caused by the weight of objects being moved is simple physics. Every load you expect the motor to handle has a weight. Multiplied by gravity, that’s your F.
A robotic arm lifting a box must overcome the weight of the box. However, the motor also needs to account for the weight of the components themselves, like robotic arm links or grippers.
2. Distance from the Pivot
The lever arm length is just as crucial. Calculating torque by only considering force and weight without factoring in the arm’s length will result in inaccurate torque requirements and potentially a poor design.
Case Study: A Simple Robotic Arm
Imagine an arm that needs to lift a 1.5 kg box at the end of a 0.5-meter-long arm.
- m = 1.5 kg
- r = 0.5 m
- g = 9.81 m/s² (constant)
We’re now ready to plug in values:
τ = r × m × g
τ = 0.5 m × 1.5 kg × 9.81 m/s²
τ = 7.36 Nm
This means you require a minimum torque of 7.36 Newton-meters (Nm) to lift the box at the end of this particular robotic arm.
Angular Acceleration
In any instance where you need the servo motor to move a load and not just hold it, you must also account for angular acceleration. Angular acceleration means your motor needs extra torque at the beginning and during changes in movement. To calculate it:
τ = I × α
- I is the moment of inertia of the robot arm (resistance to angular motion),
- α is angular acceleration.
This means that for movements such as high-speed rotations or rapid direction changes, torque requirements jump. The speed with which the load moves and how quickly the direction changes are factored into torque calculations for dynamic motion.
Final Thoughts
To summarize everything, calculating torque isn’t just as simple as deciding how heavy a load is. It requires you to think about:
- Distance (where the weight is applied from the axis),
- Weight of the object being moved,
- The weight of other mechanical components (like links and joints inside the machine),
- Angular acceleration, especially if the motor will be moving or changing directions rapidly,
- Safety margins (plan a buffer of 20-30% torque capability beyond the minimum).
The general idea is that the larger the load or the further away from the pivot, the more torque you need. By thinking through all of these details, you can properly size your servo motor torque needs, ensuring your motor will handle everything smoothly without underperformance during operation.
Get expert servo motor guidance and competitive pricing from Wake Industrial. Whether you need one motor or a complete system, we'll help you find the right solution at the right price. Call 1-919-443-0207 now for a quick quote or email sales@wakeindustrial.com to browse our extensive servo motor inventory.
Frequently Asked Questions about S70602-NANANA:
Q: What is the rated current output of the S70602-NANANA servo drive?
A: The S70602-NANANA servo drive has a rated current of 6 Arms, supporting medium to high-powered motion control applications.
Q: Which communication protocols are supported on the S70602-NANANA servo drive?
A: This model supports both EtherCAT and CANopen communication protocols onboard, allowing easy integration into a variety of automation systems.
Q: What safety feature is available on the S70602-NANANA servo drive?
A: The S70602-NANANA drive is equipped with a dual channel Safe Torque Off (STO) capability for enhanced operational safety.
Q: What is the resistance value of the internal brake resistor in the S70602-NANANA?
A: The internal brake resistor is rated at 33 Ohms, suitable for efficient energy dissipation during braking operations.
Q: What voltage range does the S70602-NANANA servo drive support?
A: This servo drive operates within a voltage range of 208 to 480 volts, providing flexibility for various industrial environments.
