Allen-Bradley 1336-BDB-SP30D Replacement for 1336 PLUS Series

Product Overview

Allen-Bradley 1336-BDB-SP30D Replacement for 1336 PLUS Series: Smooth Transition & Legacy System Compatibility

The Allen-Bradley 1336-BDB-SP30D is the OEM Gate Drive Board designed specifically for the 1336 PLUS Series AC variable-frequency drive platform. As aging 1336 PLUS drives approach end-of-service life and original gate drive boards become increasingly difficult to source, the 1336-BDB-SP30D serves as the authoritative drop-in replacement — restoring full drive functionality without requiring firmware re-flashing, control wiring redesign, or mechanical chassis modification.

Industrial facilities running legacy 1336 PLUS drives in pump control, conveyor systems, HVAC fan drives, compressor stations, and machine tool spindle applications routinely face unplanned downtime when the gate drive board fails. The 1336-BDB-SP30D directly addresses this by providing a verified, tested replacement that preserves the original drive’s IGBT firing sequence, PWM control logic, and fault-detection architecture. Engineers familiar with the 1336 PLUS platform will find the board’s connector layout, mounting hole pattern, and ribbon cable interface identical to the original, enabling a sub-hour board swap under controlled shutdown conditions.

For facilities migrating from earlier 1336 IMPACT or 1336 FORCE drive variants, the 1336-BDB-SP30D upgrade path is equally well-defined. While the 1336 IMPACT and 1336 FORCE used different power structures, many sites standardized their control cabinet wiring on the same terminal block conventions and DeviceNet or DH-485 communication backbones. The 1336-BDB-SP30D is compatible with the 1336 PLUS power structure and works in conjunction with the 1336-MOD-L2E communication adapter module, allowing the drive to remain integrated into existing Allen-Bradley DeviceNet or Remote I/O networks without topology changes.

During a retrofit or board-level repair, technicians typically also inspect or replace the 1336-BDB-SP30A and 1336-BDB-SP30B variants in adjacent drive bays, as these boards share the same failure modes under high-cycle thermal stress. Stocking the SP30D alongside these variants ensures a complete spare-parts strategy for the entire 1336 PLUS drive population on site. The gate drive board interfaces directly with the 1336-L6E main control board, and both components should be evaluated together during a fault-isolation procedure to avoid repeat failures.

Power supply integrity is critical during a gate drive board replacement. The 1336 PLUS internal 1336-PB power supply board provides the isolated ±15 VDC and +5 VDC rails that the 1336-BDB-SP30D requires for its gate signal amplifiers and optocoupler isolation circuits. Before installing the replacement board, verifying the output voltages of the 1336-PB under load is a recommended commissioning step that prevents premature failure of the new gate drive board. Similarly, the 1336-BDB-SP30D should be installed with the drive’s DC bus fully discharged — confirmed via the bus voltage indicator on the 1336 PLUS chassis — to protect both the technician and the replacement board.

Communication continuity is a primary concern for facilities using the 1336 PLUS in networked automation architectures. The board replacement does not affect the drive’s node address, baud rate settings, or I/O configuration stored in the 1336-MOD-L2E or equivalent communication module. Parameters stored in the drive’s EEPROM on the main control board are preserved across a gate drive board swap, meaning the PLC program running on an upstream ControlLogix L61 or CompactLogix L32E controller does not require modification. The drive will resume normal operation on the DeviceNet or DH-485 segment immediately after power restoration and fault reset.

For sites executing a broader drive modernization — replacing an entire population of 1336 PLUS drives with PowerFlex 40 or PowerFlex 400 units — the 1336-BDB-SP30D serves as a bridge solution, keeping critical drives operational during the phased migration. This approach avoids the capital expenditure of a full simultaneous replacement while allowing engineering teams to validate the new PowerFlex configuration in parallel. The 1336-BDB-SP30D’s availability from TOPNLMS ensures that legacy drives remain serviceable throughout the transition period, with no forced obsolescence timeline imposed on the customer.

Physical installation requires no special tooling beyond standard ESD precautions, a torque screwdriver for the M3 board-mounting fasteners, and a ribbon cable re-seating procedure for the gate signal harness. The board dimensions and PCB standoff pattern are identical to the original factory board, ensuring compatibility with the 1336 PLUS chassis without modification to the drive enclosure or DIN rail mounting arrangement. Facilities with limited control cabinet depth — a common constraint in retrofit applications — will find the board’s compact profile unchanged from the original specification.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful 1336-BDB-SP30D installation is rarely a standalone action — it is part of a broader spare-parts and system-health strategy. During the same maintenance window, experienced engineers typically address the following components to ensure long-term drive reliability:

The 1336-L6E main control board is the logical companion to the gate drive board. Fault codes that appear to originate from the gate drive section are sometimes caused by degraded optocoupler signals on the control board, making simultaneous inspection of both boards the most efficient diagnostic approach. The 1336-PB power supply board should be load-tested before the new gate drive board is energized, as a marginal power supply is the leading cause of premature gate drive board failure in the field.

For networked drive applications, the 1336-MOD-L2E DeviceNet communication adapter should be confirmed operational and its node address verified against the PLC I/O configuration before the drive is returned to service. Sites using older DH-485 communication modules in the same control cabinet should verify cable termination resistance and network segment integrity as part of the commissioning checklist.

Facilities performing a phased migration to newer drive platforms will find the PowerFlex 40 and PowerFlex 400 series to be the natural successors to the 1336 PLUS in most pump, fan, and conveyor applications. During the transition period, maintaining a stock of 1336-BDB-SP30D boards ensures that legacy drives remain serviceable without interrupting the migration schedule. Terminal block wiring from the existing 1336 PLUS installation can often be reused with minor label updates when migrating to PowerFlex, reducing field labor costs.

For applications requiring signal isolation between the drive and field instrumentation, signal isolator modules compatible with the 1336 PLUS analog I/O interface are available and recommended for installations in electrically noisy environments such as steel mills, water treatment facilities, and petrochemical plants. These isolators protect the gate drive board’s analog input circuitry from common-mode voltage transients that are a frequent cause of board-level damage in industrial settings.

Retrofit Guidance FAQ

Q: Do I need to re-program the drive after replacing the 1336-BDB-SP30D?
No. The gate drive board does not store drive parameters. All configuration data resides in the EEPROM on the 1336-L6E main control board and is preserved across a gate drive board replacement. The drive will resume its previous parameter set immediately after power-up.

Q: Is the wiring to the motor and power terminals affected by the board swap?
No. The 1336-BDB-SP30D replacement is an internal board-level repair. Motor output terminals (U, V, W), input power terminals (L1, L2, L3), and all control terminal block wiring remain undisturbed. Only the internal ribbon cable and board-mounting fasteners are involved in the swap procedure.

Q: Will the DeviceNet or DH-485 network node address change after the replacement?
No. Network node addresses and communication parameters are stored on the communication adapter module (e.g., 1336-MOD-L2E), not on the gate drive board. The drive will rejoin the network at its original node address after power restoration.

Q: What physical space is required for the replacement board?
The 1336-BDB-SP30D has an identical PCB footprint and standoff pattern to the original factory board. No modification to the drive chassis, control cabinet, or DIN rail arrangement is required. The board is a direct mechanical and electrical replacement.

Q: Can this board be used in a 1336 IMPACT or 1336 FORCE drive?
No. The 1336-BDB-SP30D is specific to the 1336 PLUS power structure. The 1336 IMPACT and 1336 FORCE use different gate drive architectures and are not compatible with this board. Please verify your drive series before ordering.

Q: What ESD precautions are required during installation?
Standard PCB-handling ESD precautions apply: use a grounded wrist strap, handle the board by its edges, and work on an ESD-safe mat. Ensure the drive’s DC bus is fully discharged (confirmed via the bus voltage indicator) before opening the drive enclosure.

Warranty Assurance

Every 1336-BDB-SP30D shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. Prior to shipment, each board undergoes functional verification including power-on testing, gate signal output verification, and visual inspection for PCB defects, solder joint integrity, and component condition. Boards that do not meet our outgoing quality standard are quarantined and not shipped.

In the event of a warranty claim, TOPNLMS provides a replacement board or full refund within the warranty period. Our after-sales response target is one business day for warranty inquiries. Customers are not required to return the defective board before a replacement is dispatched for critical downtime situations — contact our sales team to arrange an advance replacement under warranty.

Procurement teams will find our standard lead time to be 3–7 business days for in-stock items, with express shipping options available for urgent downtime recovery. We ship globally from Xiamen, China, with DHL, FedEx, and UPS express services. All shipments include a packing list, test report, and commercial invoice suitable for customs clearance.

For volume procurement, blanket orders, and consignment stocking arrangements for MRO programs, please contact our industrial sales team directly.