Allen-Bradley 1336-BDB-SP34D Replacement for 1336 PLUS

Product Overview

Allen-Bradley 1336-BDB-SP34D Replacement for 1336 PLUS: Seamless Drive System Upgrade

The Allen-Bradley 1336-BDB-SP34D (internal reference 77101-169-64) is the IGBT Gate Driver Board used in the 1336 PLUS series AC variable frequency drives. As Rockwell Automation progressively phases out legacy 1336 PLUS hardware, facilities running these drives face increasing pressure to source reliable replacement boards before unplanned downtime forces emergency shutdowns. TOPNLMS stocks verified 1336-BDB-SP34D boards ready for immediate dispatch, enabling your maintenance team to restore drive operation with minimal disruption to production schedules.

The 1336 PLUS platform was widely deployed across manufacturing, water treatment, HVAC, and material handling applications throughout the 1990s and 2000s. Many of these installations remain in active service, supported by a dwindling supply of original spare parts. The 1336-BDB-SP34D gate driver board is a critical component in the drive’s power conversion stage, responsible for switching the IGBT modules that regulate motor speed and torque. A failed gate driver typically manifests as overcurrent faults, erratic motor behavior, or complete drive shutdown — all of which demand fast, accurate replacement.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful 1336 PLUS drive repair or system modernization rarely involves a single component. When replacing the 1336-BDB-SP34D gate driver board, maintenance engineers typically audit the surrounding power and control architecture to prevent repeat failures. The 1336-MOD-L2E Main Control Board is frequently replaced alongside the gate driver when the drive has experienced sustained overcurrent events, as both boards share the same fault exposure. Similarly, the 1336-BDB-SP33D Power Interface Board — the companion board in the same drive frame — should be inspected and replaced if gate drive signals show asymmetry across phases.

For facilities upgrading from the original 1336 PLUS to the 1336 PLUS II platform, the control architecture remains largely compatible, but the 1336F-BRF-SP2 Precharge Board and associated 1336-GM1 Gate Module may require concurrent replacement to maintain system integrity. Engineers migrating from legacy 1336 IMPACT or 1336 FORCE drives to the 1336 PLUS II should note that while the IGBT technology is similar, the gate driver board pinout differs — the 1336-BDB-SP34D is specific to the PLUS and PLUS II frame.

In cabinet-level retrofits, the 1336-PB-SP2D Power Base Board and 1336-L4E Regulator Board are common co-replacement items. Where the drive communicates over DeviceNet or ControlNet, the 1336-GM6 Communication Adapter should be verified for firmware compatibility after any board-level repair. For sites running the drive under a PanelView 550 or PanelView 900 HMI, no HMI reconfiguration is required following a gate driver board swap — the drive’s parameter set is retained in the 1336-MOD-L2E EEPROM provided the control board is not replaced simultaneously.

Facilities planning a longer-term migration from the 1336 PLUS platform to the PowerFlex 40 or PowerFlex 400 series should treat the 1336-BDB-SP34D replacement as a bridge solution — extending drive life by 2–5 years while capital budgets are allocated for full drive replacement. During this transition period, maintaining a spare 1336-BDB-SP34D in the storeroom alongside a 1336-MOD-L2E control board provides comprehensive fault coverage for the most common failure modes.

Retrofit Guidance FAQ

Q: Does replacing the 1336-BDB-SP34D require re-programming the drive?
No. The gate driver board does not store drive parameters. All user-configured parameters (acceleration/deceleration ramps, current limits, speed references, PID settings) are retained in the control board’s non-volatile memory. After installing the replacement 1336-BDB-SP34D, perform a standard power-up sequence and verify fault codes are cleared before resuming motor operation.

Q: Is the 1336-BDB-SP34D compatible with both 1336 PLUS and 1336 PLUS II drives?
Yes. The board is mechanically and electrically compatible with both the 1336 PLUS and 1336 PLUS II drive families within the applicable horsepower frame. Always verify the drive catalog number and frame size against the board revision before ordering. TOPNLMS technical support can assist with cross-referencing your specific drive nameplate data.

Q: What communication protocols are supported after the board swap?
The 1336-BDB-SP34D is an internal power stage board and has no direct fieldbus interface. Your existing DeviceNet, ControlNet, or Remote I/O communication adapter remains unaffected. No changes to PLC ladder logic, HMI tag databases, or network node addressing are required.

Q: How much physical space is required for installation?
The replacement board uses the identical OEM form factor and mounting footprint. No cabinet modifications, additional DIN rail space, or enclosure cutouts are needed. Standard ESD-safe handling procedures apply during installation.

Q: Can this board be used as a direct replacement for a drive showing F-12 (Overcurrent) or F-5 (Overvoltage) faults?
F-12 overcurrent faults are among the most common indicators of gate driver degradation. After ruling out motor winding faults and cable insulation issues, replacing the 1336-BDB-SP34D is the recommended next step. F-5 overvoltage faults are typically related to the braking circuit or DC bus capacitors rather than the gate driver — a full drive inspection is recommended before attributing overvoltage faults to this board.

Q: What is the lead time and shipping arrangement?
In-stock units ship within 1–2 business days from Xiamen, China via DHL Express, FedEx International Priority, or UPS Worldwide Expedited. Estimated transit time to most destinations: 3–7 business days. Express options are available for urgent plant shutdowns. All units are individually tested and packed with anti-static protection.

Warranty Assurance

Every 1336-BDB-SP34D supplied by TOPNLMS is covered by a 12-month warranty from the date of shipment. Prior to dispatch, each board undergoes visual inspection, component-level verification, and functional testing to confirm gate drive signal integrity. Units that do not meet our quality threshold are not shipped.

In the event of a warranty claim, TOPNLMS provides a straightforward replacement process: contact our technical team with your order reference and a description of the fault symptom. We will arrange return shipping instructions and dispatch a replacement unit promptly — typically within 3–5 business days of receiving the returned item. No lengthy RMA bureaucracy. Our goal is to minimize your downtime, not extend it.

For B2B procurement teams, we can provide test reports, packing lists, and commercial invoices suitable for customs clearance and internal audit requirements. Volume pricing is available for storeroom replenishment orders. We support net payment terms for established accounts.

TOPNLMS has been supplying industrial automation spare parts to maintenance teams, system integrators, and OEM repair centers across Asia, the Middle East, Europe, and the Americas. Our inventory focus on legacy Allen-Bradley, Siemens, ABB, Schneider Electric, and Mitsubishi platforms means we understand the urgency and precision required when a production line is down.