8520-ENC4

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8520-ENC4

Revisions: Ser A Ser B 
Description: Allen-Bradley 8520-ENC4 4 Axis Digital Servo Module with a +5V from Main Power Supply Input Power Range for Encoders and 2 MHz Max. Input Frequency of Encoder Feedback.
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Request a quote for 8520-ENC4

Description: Allen-Bradley 8520-ENC4 4 Axis Digital Servo Module with a +5V from Main Power Supply Input Power Range for Encoders and 2 MHz Max. Input Frequency of Encoder Feedback.

Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via DHL, UPS, Fedex, and TNT
Repairs: We offer repair service for the 8520-ENC4.
Exchange: Exchange credit for your defective unit available.

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Rated 4.9 with 18 reviews

    Technical Specifications for 8520-ENC4

ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.8520-ENC4
Product Type4 Axis Digital Servo Module
Input Power Range for Encoders +5V from Main Power Supply
Max. Input Frequency of Encoder Feedback2 MHz
Desired Voltage Range of Encoder Battery Backup3.5V-4.5V
PWM Output Frequency Approx. 2.0 KHz
PWM Signal TypeRS-422-A
DAC Output Voltage Range+/-10V
DAC Output Resolution2.44mV
DAC Output Sampling Frequency1000 Hz
DAC Output Current5mA max.
DAC Output Load Capacitance0.01 mF max.
ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.8520-ENC4
Product Type4 Axis Digital Servo Module
Input Power Range for Encoders +5V from Main Power Supply
Max. Input Frequency of Encoder Feedback2 MHz
Desired Voltage Range of Encoder Battery Backup3.5V-4.5V
PWM Output Frequency Approx. 2.0 KHz
PWM Signal TypeRS-422-A
DAC Output Voltage Range+/-10V
DAC Output Resolution2.44mV
DAC Output Sampling Frequency1000 Hz
DAC Output Current5mA max.
DAC Output Load Capacitance0.01 mF max.
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About 8520-ENC4

The 4-axis Digital Servo Module 8520-ENC4, from Allen Bradley, is a high-speed servo processor, installed in the component enclosure, that receives velocity and positioning data from the control, processes it, and produces the needed pulse width modulated (PWM) command signals.  The 8520-ENC4 module can also generate analog velocity command signals for the spindle motor that is not using a digital servo amplifier.



It has two typical digital servo drive configurations for the control:  lathe configuration and mill configuration. The former consists of two axes, each with a servo motor and feedback device, as well as a 1-axis analog open loop spindle motor that has a position feedback. The latter has 3-axes, each of which also has a servo motor and a feedback device plus a 1-axis analog open loop spindle motor.  The 8520-ENC4 receives two kinds of feedback; it receives current feedback from the servo amplifier and position data from the feedback devices that are on the axes. The 8520 ENC4 Servo Module input specifications are as follows: the input power has a range of +5V (+10%, -1%), +15V (±7%) for encoders; the highest input frequency for longest cable length is 2MHz; the voltage range for the encoder battery backup is 3.5V to 4.5V.  The Servo Module output specifications are: DAC output voltage range is ±10±, output current is a maximum of 5mA, sampling frequency is 1000 Hz, load capacitance at maximum is 0.01µ, and resolution is 2.44mV (±12 bits); pulse width modulated (PWM) output frequency in approximately 2.0 KHz and signal type is RS-422.A.



Repair Services for 8520-ENC4

Type Lead Time Price Action
Repair Service 2-4 weeks $2199.76cartAdd to Cart

Our highly skilled technicians can repair your 8520-ENC4. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions for 8520-ENC4

Please refer to the manual for more information about the 8520-ENC4 such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
8520-ENC4 Ser A
8520-ENC4/A, Series A, Rev A Request Quote
8520-ENC4 Ser B
8520-ENC4/B, Series B, Rev B Request Quote
Common misspellings:
  • b520-ENC4
  • 852o-ENC4
  • 8520-ENCA
  • 8520ENC4

Dimensions For 8520-ENC4

Size
Input Type
Panel Cutout Height in mm
Panel Cutout Width in mm
Terminal Height in mm
Terminal Width in mm
Terminal Overall Depth in mm
Terminal Mounted Depth in mm

Dimensions For 8520-ENC4

Resolutions For 8520-ENC4

About

Technical Specifications for 8520-ENC4

ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.8520-ENC4
Product Type4 Axis Digital Servo Module
Input Power Range for Encoders +5V from Main Power Supply
Max. Input Frequency of Encoder Feedback2 MHz
Desired Voltage Range of Encoder Battery Backup3.5V-4.5V
PWM Output Frequency Approx. 2.0 KHz
PWM Signal TypeRS-422-A
DAC Output Voltage Range+/-10V
DAC Output Resolution2.44mV
DAC Output Sampling Frequency1000 Hz
DAC Output Current5mA max.
DAC Output Load Capacitance0.01 mF max.
ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.8520-ENC4
Product Type4 Axis Digital Servo Module
Input Power Range for Encoders +5V from Main Power Supply
Max. Input Frequency of Encoder Feedback2 MHz
Desired Voltage Range of Encoder Battery Backup3.5V-4.5V
PWM Output Frequency Approx. 2.0 KHz
PWM Signal TypeRS-422-A
DAC Output Voltage Range+/-10V
DAC Output Resolution2.44mV
DAC Output Sampling Frequency1000 Hz
DAC Output Current5mA max.
DAC Output Load Capacitance0.01 mF max.

About 8520-ENC4

The 4-axis Digital Servo Module 8520-ENC4, from Allen Bradley, is a high-speed servo processor, installed in the component enclosure, that receives velocity and positioning data from the control, processes it, and produces the needed pulse width modulated (PWM) command signals.  The 8520-ENC4 module can also generate analog velocity command signals for the spindle motor that is not using a digital servo amplifier.



It has two typical digital servo drive configurations for the control:  lathe configuration and mill configuration. The former consists of two axes, each with a servo motor and feedback device, as well as a 1-axis analog open loop spindle motor that has a position feedback. The latter has 3-axes, each of which also has a servo motor and a feedback device plus a 1-axis analog open loop spindle motor.  The 8520-ENC4 receives two kinds of feedback; it receives current feedback from the servo amplifier and position data from the feedback devices that are on the axes. The 8520 ENC4 Servo Module input specifications are as follows: the input power has a range of +5V (+10%, -1%), +15V (±7%) for encoders; the highest input frequency for longest cable length is 2MHz; the voltage range for the encoder battery backup is 3.5V to 4.5V.  The Servo Module output specifications are: DAC output voltage range is ±10±, output current is a maximum of 5mA, sampling frequency is 1000 Hz, load capacitance at maximum is 0.01µ, and resolution is 2.44mV (±12 bits); pulse width modulated (PWM) output frequency in approximately 2.0 KHz and signal type is RS-422.A.



Repairs
Type Lead Time Price Action
Repair Service 2-4 weeks $2199.76cartAdd to Cart

Our highly skilled technicians can repair your 8520-ENC4. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Type Lead Time Price Action
Repair Service 2-4 weeks $2199.76cartAdd to Cart

Our highly skilled technicians can repair your 8520-ENC4. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions

Please refer to the manual for more information about the 8520-ENC4 such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
8520-ENC4 Ser A
8520-ENC4/A, Series A, Rev A Request Quote
8520-ENC4 Ser B
8520-ENC4/B, Series B, Rev B Request Quote

Common misspellings:
  • b520-ENC4
  • 852o-ENC4
  • 8520-ENCA
  • 8520ENC4
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