"> FADAL DC Brush, AMP-0021 by ITS
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Independent Technology Service Inc.

Your Fadal Machine Parts & Repair Depot

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Axis Amplifiers, AC-DC

"ITS" DC Brush, Short Protected, XYZAB Axis Amplifier
  • "ITS" DC Brush, Short Protected, XYZAB Axis Amplifier
  • "ITS" DC Brush, Short Protected, XYZAB Axis Amplifier

"ITS" DC Brush, Short Protected, XYZAB Axis Amplifier

Part number: AMP-0021-ITS

In Stock, Ships Today by 4pm PST
New Price: $945.00
Repair Price:$450.00

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New 2014 AMP-0021-ITS DC Amplifier
Designed For Maximum Performance and Reliability

New and Unique Benefits: 

  • Motor Short Protection
  • Better Fault Management
  • 2x Faster Servo Response
  • Full Protection Cover

NEW - "Motor Short Protection"
Engineered for maximum performance and reliability, features such as Motor Short Protection.
Our special Motor Short Protection provides additional protection when a motor or wiring becomes shorted. With other amplifiers, a motor short typically destroys the output devices or melts circuit board traces, permanently damaging unprotected amplifiers. Our goal is to provide an amplifier that not only performers better but also lasts longer!

NEW - Faster Servo Response
The servo loop is 2x faster which provides better servo accuracy during motion and 2x the zero speed stiffness for more consistent positioning and backlash adjustments.

NEW - Better FAULT Management
We designed better current output conditions in three stages: continuous, peak, and fold back modes. Rather than just shutting down the amplifier after a 3 second peak current output, this amplifier automatically folds back to continuous motor output.
Other amplifiers never indicate when the amplifier is in the PEAK output; they simply shut down and light the Fault LED. This leaves you to wonder if a heavy cut was causing a fault or the amp/motor was faulty.
Rather than just lighting an LED when the amplifier is in a FAULT mode, we added better functionality to help with diagnostics:

A).The FAULT LED lights up when the amplifier exceeds the continuous duty cycle to indicate starting the 3 sec 200% PEAK current output. After 3 seconds, the amplifier folds back to the 100% continuous output rating.
B).The LED goes OFF while in the continuous rating and the 3 second Peak output capability is restored.
C).The Fault signal goes LOW only when the amplifier is actually Faulted (unable to output power) or the motor/wires are shorted.

NEW - Protective Cover
For added protection we've covered the amplifier to help protect the electronics from handling and also shield it from stray chips that can end up in the electrical cabinet.  After years of repairing amplifiers, we found many problems associated with conductive shorts.   

Note: No AMC AMPS or Old Style Glentek (round silver transisters) accepted for core credit.

Part Number AMP-0021-ITS is used with non-VMC 15 machines, for all axes (XYZAB) using the larger amplifier footprint with Terminal connectors.

Used With Motors:    


Replaces Amplifiers:

AMC AMP-0015 (40ACNC)
21 (All GA4568 series)
All Cheap Knockoffs Offered by our Compitetors

Fadal VMC Amplifier

About The Development Of The AMP-0021-ITS  
These new amplifiers are not just an aftermarket amplifier, they were developed by the original engineers of the Fadal AMP-0040 brushless series.
Back in 1997, the Fadal brushless amplifier and motor was designed and developed by David de Caussin (Fadal, now VMC Electric) and John Vasak (Glentek, currently Varedan Technologies). The Brushless project was so successful, after 15 years it remains virtually the same until today.

In a recent collaboration with ITS, John and David developed this new Brush
AMP-0021-ITS as a drop-in replacement amplifier for Fadal DC servos. With a goal not to just make another amplifier, but to develop a better product utilizing the latest technologies and combined experience since the brushless project.

With New Features Like These
You'll Be Getting The Most Reliable Amp On The Market


Total Engineering Support!

With us you're not just getting a "Part In A Box!"
Here's four key examples of the Total Support our customers receive:

Direct help in determining if you really do need to replace the amplifier. When working with engineers that design the machine, we can help determine if there's other elements in the servo system that also need to be addressed before replacing an amplifier.

We provide very simple and concise, step by step instructions on how to install and get your replacement amplifier in and running. With our documentation we also include Preventative Maintenance tips to help avoid future failures.

With the combination of our engineering background and direct interaction with both Glentek and AMC engineers, you are getting the absolute best product support possible at installation and beyond.
The axis amplifiers are one of the most important aspects of the machine. Why buy something from someone without the engineering experience and the manufacturer's direct support?   

New 12 Month Warranty:
Just like "the old days", we value our relationship with each and every customer. We are driven by fairness and committed to your satisfaction. Click on the
About Us page to learn about what guides us today.    

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Amp Repair Products

In order to repair this part, choose one of the options below to start the repair process.
1) If you would like to start the RMA (Return Material Authorization) process now, Click Here.
2) If you would like more information on Amplifier Repair, Click Here