SAM #1232SA27Q0004

USDA ARS Micro Gin Motor Control Center and Controls Upgrade

USDA ARS is seeking a complete controls upgrade for the Micro Gin at its Cotton Ginning Research Unit in Stoneville, Mississippi. - Government buyer: U.S. Department of Agriculture (USDA), Agricultural Research Service (ARS); the documents identify the Cotton Ginning Research Unit, USDA ARS AFM APD, and Research, Education, and Economics. - Procurement: Supply and install a motor control center (MCC), programmable logic controller (PLC), human-machine interface (HMI), and related electrical equipment to replace existing hardwired controls. USDA provides the motors. - OEMs named: ABB Electrification U.S.; Schneider Electric; Eaton; Siemens; Rockwell Automation (Allen-Bradley); Mitsubishi Electric; Fuji Electric; General Electric; and Omron. Named examples include Schneider M340, Allen-Bradley CompactLogix 5380, Siemens SIMATIC S7-1500, Omron NX1P2, Eaton C440 overload relays, Schneider Altivar ATV340, Eaton Power XL DX1, and Mitsubishi FR-A800. Some substitutions require client pre-approval. - Main equipment: One MCC designed for 400 connected horsepower, with at least 600 A bus capacity, for a 480 V, 60 Hz, three-phase corner-grounded delta system; one PLC; HMI capacity to display 50 motor stations; one stand-alone motor-control console; and VFDs for motors designated in the motor schedule. The MCC includes space for four future compartments. - Controls and electrical scope: PLC I/O requirements are 80 discrete inputs, 86 discrete outputs, 26 analog inputs, and 20 analog outputs, with 20–25% spare I/O. Provide 120/240 V single-phase distribution, a 600 A main, wiring, conduit, cable trays, connections, programming, and integration. The SOW describes using the existing 45 kVA transformer for distribution as required; an alternate MCC service arrangement is also described. - Notable requirements: The HMI must support process displays, alarms, trends, motor controls, and production records, and show 50 motor start/stop stations on one or two screens. The console must be NEMA 4 steel and include an emergency stop, key-lock On/Off switch, and Manual Re-Set button. Equipment must be suitable for the facility’s dusty, humid, temperature-variable, and electrically noisy environment. - Services: Remove existing controls and wiring; install and integrate equipment; perform factory and field testing, commissioning, and adjustments; and provide two workdays of training for up to five owner representatives. Factory testing must follow applicable ANSI, NEMA, and UL standards. - Schedule information: PLC and HMI delivery is required within 120 days after contract acceptance, and the SOW sets a completion deadline. The sources-sought notice is market research, not a solicitation or request for proposal.

Description

Sources sought notice in accordance with the attached memorandum and supporting documents. 

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