S6961NP

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The Kollmorgen S6961NP servo drive, part of the S600 Servo Drives series, features an AC power input range of 105-132 VAC at single-phase, 50/60 Hz. It offers anti-resonance compensation with adjustable gain (0-7) and a step resolution selectable up to 25,400 steps per revolution. Protection includes overtemperature and short-circuit safety.

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Product Description:

The S6961NP is a microstepping drive controller from Kollmorgen designed to ensure optimized performance of stepper motors. It utilizes advanced microstepping technology to provide highly accurate positioning and smooth stepper motor motion, ensuring minimal vibration and noise. This control system precisely divides each full motor step into smaller microsteps, resulting in fine-tuned movements and superior accuracy. The precise control benefits energy efficiency and overall system performance, making it a highly reliable solution for applications that demand high throughput and minimal downtime.

|The S6961NP features 8 optically isolated inputs that are ideal for use with limit switches and home positioning sensors. These inputs allow the drive to detect critical positions within the motion system, ensuring safe and accurate movement. The drive also features 8 optically isolated, open-collector outputs with a sink current capability of up to 100 mA. These outputs are designed to interface with external devices, such as indicators, to signal status changes or events within the motion system. The optically isolated design ensures electrical separation between the controller and external components, ensuring protection from voltage faults. This enhances the versatility and reliability of the drive in complex motion control applications.

The S6961NP offers a motor current range from 0.1 to 6.0 Amps per phase, providing flexibility for various motor types. This wide range allows the drive to accommodate different load requirements. The drive offers an adjustable step resolution of up to 25,400 steps per revolution. This ensures exceptional flexibility in controlling the stepper motor’s movements by allowing users to choose the ideal resolution for their specific application. This adjustable resolution supports extremely fine movements, making the drive ideal for applications requiring high precision.

AC Power Input
105-132 VAC, single-phase, 50/60 Hz
Acceleration Range
0.002 s to 2 h
Anti-resonance Gain
Selectable 0-7
Command Interface
RS-232C serial
Communication Settings
9600 baud, 8N1, XON/XOFF
DC Bus Voltage
160 VDC
Digital Inputs
8 opto-isolated inputs (limit/home), internally pulled-up
Digital Outputs
8 opto-isolated OC, 100 mA sink, 12/24 V pull-up
Max Velocity
1,250,000 steps/sec
Motor Current Range
0.1-6.0 A/phase (up to 7.9 A opt.)
Opto I/O Modules
8 opto modules (G4 digital, Grayhill analog/temp)
Position Modes
Absolute and incremental
Position Range
±2,147,483,647 steps
Protection Features
Short/open-circuit, brownout, overtemp shutdown
Stand-by Mode
Reduces current to 70% after 250 ms idle
Step Resolution
200-25400 steps/rev (8 settings)
VA Rating
500 VA max
Waveform Option
Sine or approx. -4% third harmonic

Frequently Asked Questions about S6961NP:

Q: What is the motor current range for the S6961NP drive controller?

A: The S6961NP supports a motor current range from 0.1 to 6.0 Amps per phase, which allows it to power a wide range of stepper motors.

Q: How does the anti-resonance compensation work in the S6961NP?

A: The S6961NP includes anti-resonance compensation with adjustable gain, which minimizes motor vibration and instability.

Q: What is the maximum step resolution the S6961NP can provide?

A: The S6961NP offers a selectable step resolution of up to 25,400 steps per revolution. This high resolution enables extremely fine and accurate movements.

Q: Does the S6961NP have overtemperature protection?

A: Yes, the S6961NP has built-in overtemperature safeguards to protect the controller from overheating.

Q: What type of communication interface does the S6961NP support?

A: The S6961NP features an RS-232C serial interface for communication. This allows it to easily integrate with other systems or computers for control and monitoring.


Internal Product Review

  • ‘‘The S6961NP delivers impressive performance with ultra-smooth stepper motor control, ensuring high precision in demanding applications. Its anti-resonance compensation provides a refined and reliable motion system. However, the lack of a more extensive communication interface may limit its scalability in some setups.’’

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