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2 year warranty

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Reliance Electric GV3000 Regulator Board 0-56921-502AA. This model runs on 5.02 software and is used in drives where the horsepower is 1-5 HP. This model will specifically work with a 2 HP model.



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  • Part Number: 0-56921-502AA
  • SKU: 056921502AARE
  • Manufacturer: Reliance Electric
  • Series: GV3000 Drives

0-56921-502AA Technical Specifications

Part Number 0-56921-502AA
Series GV3000 Drives
Manufacturer Reliance Electric
Product Type Regulator Board
Instruction Manual D2-3343
Weight Less than 1 pound

Product Description

The 0-56921-502AA model is described by Reliance Electric as a regulator board. This model will mount with GV3000 drives, specifically ones in the range of 1-5 HP. This model is outfitted with modules and nodes that assist the drive when used with a vector-based regulator. Regulation of the 0-56921-502AA board is achieved through the processing of major and minor digital feedback loops in flux or sensorless vector control. This board can also process dynamic response outputs and help with the regulation and maintenance of the motor speed on the chosen drive. 

There are specific installation and removal procedures that must be followed to ensure that there is no personal injury, property damage, or potential loss of life. When removing or installing the 0-56921-502AA board, the user should ensure that all power is disconnected and that all voltages have evaporated; not following this simple procedure can result in loss of life, shock, property damage, and more. All voltages and DC bus potentials would be checked with a voltmeter to make sure everything has been discharged so the model can be removed and installed safely. 

If the 0-56921-502AA unit is being replaced with a drive that has an option board, the option board will need to be removed from the support bracket, then the regulator board ribbon connector will need to be removed from the option board, and the old regulator board will then need to be removed from the support bracket. Before putting the replacement regulator board in the drive, make sure that all of the jumper settings on the new regulator board are identical to the old regulator board. 

For more installation and removal procedures of the 0-56921-502AA model, refer to the D2-3343 manual from Reliance Electric.

Frequently Asked Questions about 0-56921-502AA

What type of model is the 0-56921-502AA?

The 0-56921-502AA model is a regulator board used with the GV3000 drives. 

Where will the 0-56921-502AA model be mounted in the GV3000 drive?

The 0-56921-502AA model is mounted in the keypad support bracket. When mounting the model in the support bracket, if the 0-56921-502AA model is being used as a replacement model then all of the jumpers on the 0-56921-502AA model must be identical to the settings on the previous model. 

What is one of the precautions for replacing the 0-56921-502AA model in GV3000 drives?

One of the primary precautions is that the current feedback board used with the regulator board needs to be properly aligned and that they need to be aligned with the corresponding connector blocks on the drive, is this is not done then it can cause issues with the operation of the drive but can also cause bodily injury if caution is not taken.

Reviews For 0-56921-502AA

Internal Review

While the 0-56921-502AA regulator board is an excellent model to use when a replacement regulator is required within the GV3000 drive, it is difficult to discern what GV3000 drive the model will be used with. It can be assumed that the 0-56921-502AA regulator board will be used with drives that operate on 2 HP. Refer to all available documentation from Reliance Electric to determine if this model is best for your usage. - AX Control Tech

Repair Services For 0-56921-502AA

Type Lead Time Price Action
Repair Service 1-2 weeks $1185

Our highly skilled technicians can repair your 0-56921-502AA. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
All AC/DC and Servo Drives: 2 Years
All Motors: 1 Year
Learn More