OVERVIEW

Official designation: Allen-Bradley 1336F-MCB-SP1G (1336 Plus II, Main Control Board)

Role/Application: Replacement board for the main control functionality within the 1336 Plus II Adjustable Frequency AC Drive, housing the Human Interface Module and managing internal communications.

KEY SPECS SUMMARY

Power: 115 VAC control input

Interfaces / Ports: Internal Jumper/Adapter ports

Indicators: One RED status light for CR3

Operating Temp: 0 to 40 degrees C (Varies by enclosure type)

Platform / Compatibility: 1336 Plus II Drives, Frame Size G

Limit: ESD sensitive part; requires static control

Lifecycle: Discontinued/Obsolete

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What components are typically housed or connected on the 1336F-MCB-SP1G control board?

A: The board accommodates the snap-in HIM, Flash Interface Board, and internal communication modules.

Wiring & Installation:

Q: Are special procedures required when installing this replacement Main Control Board?

A: Yes, use Electrostatic Discharge precautions and properly transfer all jumpers and optional adapter boards.

Troubleshooting & Compatibility:

Q: What does the RED light indicator on the Main Control Board signify?

A: The RED light indicates the status of the CR3 contact, illuminating when TB2 terminals 13 and 14 are closed.

Replacement & Upgrades:

Q: What is the recommended current upgrade path for the obsolete 1336 Plus II drives?

A: Migration to the Allen-Bradley PowerFlex 750 series is commonly recommended for replacement.