Repair
Repair Price: $ 324.00
Purchase
CSL Part Number: 4721
Product Overview: The KB Electronics KBRG-225D is a four-quadrant regenerative DC motor speed control designed for 120/240V AC input and rated for 1.5 to 3 HP motors. It delivers full-wave DC output at 16 amps, providing bi-directional motor control with regenerative braking capability. Commonly used in industrial automation and robotics applications requiring precise speed control and dynamic braking in both forward and reverse directions. Field-configurable via jumpers for voltage, current limits, and control modes including tachometer feedback.
Category: DC Motor Controls
Manufacturer: KB Electronics
Manufacturer Synonyms: NIDEC
Manufacturer Part Number: KBRG-225D
Series: KBRG Regenerative DC Drive
Also Known As(AKA): 8800
DC Motor Speed Control, Full Wave, 4 Quadrant 16 Amps DC
Common Failures
Common issues with this product include unidirectional operation, motor not stopping properly, shorted SCRs, burnt or unsoldered joints, and defective capacitors. These problems often result in symptoms such as motors only running in reverse, lack of speed control, or motors not spinning due to stray voltage or defective components.
Repair Approach
Repairs typically involve replacing defective fuses, capacitors, SCRs, and jumpers. Solder joints are reflowed, and terminal blocks are repaired when cracked. Diagnostic testing is performed to identify faults, followed by component replacement or repair as needed.
Testing & Quality
Each repaired unit undergoes burn-in testing with motors to verify bi-directional movement, proper start/stop functionality, and stable speed control. These tests verify that field outputs are correct and that units perform as expected. Testing procedures help maintain quality standards post-repair.
Service and repair your broken KB Electronics part
We can repair your KB Electronics model KBRG-225D in our facility. Let our skilled technicians get your KB Electronics back in operation quickly.
Step 1 - Click the green 'Repair Now' button above to add the part and then complete the RMA.
Step 2 - The RMA form will be sent to you via email. Print the RMA form and put it in a box with the item(s) for repair.
Step 3 - Ship or mail the box to the address listed on the RMA.
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