Description
Product Name: 1336T-MCB-SP34B74101-772-54 Allen Bradley Controller module
Product details:
The 1336T-MCB-SP34B74101-772-54 is a Spare Main Control Board (MCB) designed for the Allen-Bradley 1336 PLUS II or 1336 IMPACT series of Adjustable Frequency AC Drives.
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Function: This board is the “brain” of the VFD. It contains the microprocessor, control logic, I/O (Input/Output) circuitry, communication interfaces, and memory for storing parameters. It is responsible for controlling the drive’s output frequency and voltage to manage the speed and torque of an AC induction motor.
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Series: The “T” in the main catalog number (1336T) often refers to the 1336 PLUS II series, which succeeded the original 1336 PLUS.
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Purpose: It is used by maintenance personnel to replace a failed Main Control Board in an existing drive, allowing for quick repair and minimizing machinery downtime.
2. Product Specifications (Estimated based on typical 1336 series VFDs)
Since this is a spare board, its specifications are defined by the drive frame it is intended for. The specific codes within the part number typically encode configuration details.
| Parameter | Value/Description | Note |
| Product Type | Spare Main Control Board (MCB) | For 1336 PLUS II or IMPACT Drives |
| Voltage Class | 380-480V AC (Nominal) | The ’34B’ likely refers to a 380V or 480V rating. |
| Horsepower/kW Rating | Varies by the drive frame size it supports. | The full part number structure dictates the specific drive model. |
| Control Type | Digital Vector Control, Volts-per-Hertz (V/Hz) Control | Standard control methods for the 1336 series. |
| Input/Output | Digital and Analog I/O Points | Connects to external control signals (e.g., Run/Stop, Speed Reference). |
| Communication | Typically supports Remote I/O (RIO), DeviceNet, or other modules. | The board provides the interface for communication options. |
| Display Interface | Connects to the Human Interface Module (HIM) / Keypad. | Allows for parameter viewing and adjustment. |
3. Key Advantages
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Minimizes Downtime: As a spare part, its primary advantage is enabling the rapid repair of a faulty drive by simply swapping the control board, avoiding the need to replace the entire VFD.
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Cost-Effective Repair: Replacing the control board is often more economical than purchasing a completely new drive.
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Reliable Performance: Ensures the repaired drive maintains the original Allen-Bradley quality and operational characteristics.
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Original Equipment Manufacturer (OEM) Fit: Guarantees perfect compatibility with the 1336 PLUS II/IMPACT chassis and power structure.
4. Important Considerations (Precautions)
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Static Electricity (ESD): Control boards are extremely sensitive to static discharge. Always use grounding straps and follow proper ESD handling procedures when installing or removing the board.
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Parameter Backup: Crucially, before replacement, the drive parameters must be backed up (saved) from the old board or via a communication link. After installing the new MCB, the parameters must be reloaded to ensure the motor and application run correctly.
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Power Down: Strictly ensure all power is disconnected and discharged from the drive’s DC bus before attempting to replace the control board. VFDs store high voltage even after power-off.
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Firmware Compatibility: Ensure the new spare board is compatible with the firmware version of the drive’s power section, although this is usually guaranteed by the specific part number.
5. Typical Product Applications
The 1336 PLUS II and IMPACT drives are robust, legacy VFDs used in a wide range of industrial applications:
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Material Handling: Conveyors, sorting systems, and automated storage/retrieval systems.
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Pumps and Fans: HVAC systems, municipal water/wastewater treatment, and industrial fluid transfer.
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Machine Tools: Controlling spindles and feed axes in older or specialized machinery.
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General Manufacturing: Mixers, extruders, packaging equipment, and textile machines.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
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Service: Professional Sales provides 24 hours /7 days online service
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