The Allen-Bradley 1336-BDB-SP30C is a critical Gate Driver Power Circuit Board (PCB) designed for the 1336 PLUS, PLUS II, and IMPACT series of Adjustable Frequency AC Drives. This board serves as the essential interface between the drive’s control logic and the power semiconductor modules (IGBTs). Its primary function is to amplify low-level control signals into high-current pulses capable of switching the IGBTs, thereby controlling the motor’s speed and torque with high precision.
Key Product Specifications
- Part Number: 1336-BDB-SP30C
- Manufacturer: Allen-Bradley (Rockwell Automation)
- Component Type: Gate Driver / Power PCB
- Drive Compatibility: 1336 PLUS / IMPACT / FORCE (S Frame)
- Voltage Rating: 460V AC / 575V AC (Depending on drive configuration)
- Horsepower Range: Typically used in 200HP to 300HP (Frame S) drives
- Dimensions: 320 mm x 210 mm x 45 mm
- Weight: 1.45 kg
- Country of Origin: USA
Application Fields
This gate driver board is vital in heavy-duty industrial drive applications:
- HVAC Systems: Controlling large centrifugal fans and chillers in commercial buildings.
- Material Handling: Managing high-torque conveyor systems and industrial cranes.
- Water Treatment: Regulating high-capacity pumps and aeration blowers.
- Metal & Mining: Operating crushers, mills, and heavy-duty industrial agitators.
Usage Instructions
- Safety Precautions: Before installation, ensure all input power to the drive is disconnected. Wait at least 5 minutes for the DC bus capacitors to fully discharge. Verify zero voltage with a multimeter.
- Electrostatic Discharge (ESD): Always wear a grounded wrist strap when handling the 1336-BDB-SP30C board to prevent damage to sensitive CMOS components.
- Installation: Carefully align the board with the standoffs in the drive chassis. Ensure all ribbon cables and wiring harnesses are securely seated in their respective headers.
- Inspection: Before re-applying power, check for any pinched wires or loose hardware. Verify that the IGBT gate connections are tight and show no signs of thermal damage.
Q&A – Frequently Asked Questions
Q: Can this board be used in a 230V 1336 drive? A: No, the “SP30C” revision is specifically designed for higher voltage frames (typically 460V or 575V). Using the wrong gate driver board can cause catastrophic failure of the IGBT modules.
Q: What are the signs of a faulty gate driver board? A: Common symptoms include “Overcurrent” faults, “Ground Faults,” or the drive failing to output voltage to the motor even when the control display shows the drive is “Running.”
Q: Does this board come pre-configured with firmware? A: The gate driver board is a hardware interface component and does not host the main drive firmware; however, it must match the hardware revision of the drive’s main control board for proper timing and protection.
Product News: Extending the Life of 1336 Series Drives
Rockwell Automation has officially moved the 1336 series to “End of Life” status, but the demand for high-quality spare parts like the 1336-BDB-SP30C remains high. Many facilities find it more cost-effective to replace individual boards than to perform a complete drive system migration to the PowerFlex series. To support these users, specialized technical centers are now offering certified testing and refurbishment for these gate driver boards, ensuring they meet the original manufacturer’s pulse-width modulation (PWM) accuracy standards and maintaining the reliability of critical 460V infrastructure.
