National Institute of Standards & Technology, Acquisition & Assistance Div., Bldg. 301, Rm B117, Gaithersburg, MD 20899

61 -- STEP MOTOR DRIVERS SOL 53SBNB860122 DUE 080598 POC Joan M. Smith, (301) 975-6458 WEB: NIST Contracts Homepage, http://www.nist.gov/admin/od/contract/contract.htm. E-MAIL: NIST Contracts Office, Contract@nist.gov. This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in Subpart 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; proposals are being requested and a written solicitation will not be issued. The solicitation number, #53SBNB860122, is a Request for Quote (RFQ). The solicitation document and incorporated provisions and clauses are those in effect through Federal Acquisition Circular 97-04. The associated Standards Industrial Classification Code (SIC) for this procurement is 5084, and the small business size standards for employees is 500. This procurement is not set aside for small business. The National Institute of Standards and Technology (NIST) has a requirement for Step Motor Drivers, identified as Contract Line Item Number (CLIN) 0001, quantity -- 250 motor driver units each. CLIN 0002 -- Option for 25 axes to be exercised within 6 months ARO. CLIN 0003 -- Option for 25 axes to be exercised within 12 months ARO. CLIN 0004 -- Option for 25 axes to be exercised within 18 months ARO. CLIN 0005 -- Option for 25 axes to be exercised within 24 months ARO. Provide a price per unit. Background -- The NIST Center for Neutron Research (NCNR) is a national facility dedicated to the use of neutrons for materials research and basic science. With 18 operational neutron spectrometers and three new spectrometers under construction, this facility provides the nation with its most versatile capability for neutron based research. The NCNR has identified the need to modernize the computer-based stepper motor systems which control the position of the many movable components on each spectrometer. NIST has determined that the motor driver amplifiers in this new system shall be independent, chassis, rack, or heat-sink mountable units which provide high resolution, currect controlled output for two phase hybrid stepper motors. Towards this design goal NIST intends to purchase from a manufacturer's standard inventory, a number of microstepping, bipolar chopper step motor drivers. These drivers will provide a standard, TTL-compatible STEP and DIRECTION indexer interface and be capable of driving two phase hybrid stepper motors with winding inductances in the range of 0.5 to 50 mH. The drivers should be capable of accepting a DC input voltage up to 75VDC and produce an output current rating of a least 7A per phase. The drivers shall provide an interface which allows for easy adjustment of the step resolution and output current, provide motor and drive fault protection, and a current reduction capability for a stationary motor. Specifications -- The step motor drivers shall have an independent chassis or heat-sink mountable two-phase motor driver and shall meet the following specifications: (1) shall be part of the manufacturer's standard inventory; (2) shall be TTL-compatible indexer interface with STEP, DIR, REMOTE ENABLE/SHUTDOWN, DRIVE FAULT and preferably a REMOTE STANDBY function for current reduction at standstill; (3) shall have a 70VDC minimum input voltage supply (120VAC input models will be considered at a substantial disadvantage in rating) (prefer that all logic level power is generated from the primary input voltage supply); (4) the output is two-phase, bipolar, current regulated drive,chopper frequencies greater than 20kHz (fixed frequency chopping at equal or greater than 20kHz is preferred); (5) motor outputs shall be compatible with step motor inductance's from 0.5 to 50 mH, with a maximum output current of a least 7A/phase; (6) output power amplifier shall be capable of dumping or regenerating power generated by the motor/load system and faulting when this capacity is exceeded without damage to the drive; (7) output shall be protected from over- temperature, phase-phase short circuits and phase to ground short circuit conditions; (8) output waveform shape (offsets and harmonics), and current amplitude shall be user selectable with a strong preference for a switch or jumper selectable interface; (9) shall support multiple resolution waveform generation from "full-stepping" (200 steps/rev.) to "full-microstepping" (25,000 steps/rev minimum) (preference is for a jumper or switch selectable step resolution interface); (10) shall provide anti-resonance circuitry and/or electronic damping modes (preferred); (11) shall provide for low EMI emissions or provide appropriate shielding capability (preferred); (12) output current reduction at standstill to a minimum of 50% of full rating is required (standby mode may be enabled by asserting the REMOTE STANDBY input or automatically by the driver after a move is completed) (standby current level shall be preset and/or (preferably) user selectable; and (13) command step inputs shall have a minimum bandwidth of 500kHz (prefer 2MHz or better). Delivery is required within 12 weeks ARO. Delivery location is NIST, Building 301, Receiving Room, Gaithersburg, Maryland 20899, The FOB point shall be Destination, Gaithersburg, Maryland. The following FAR provisions apply to this solicitation: FAR 52.212-1 Instruction to Offerors-Commercial; FAR 52.212-2, Evaluation-Commercial Items. Evaluation Criteria to be included in paragraph (a) of provision FAR 52.212-2 are as follows: (1) Technical Capability to meet or exceed the Government's requirement. (2) Past Performance. Offeror's should include recent references (within the last 3 three years) of installations of the proposed unit type. The list should include the name, address, and phone number of the local contact; and (3) Price. Technical evaluation criteria, when combined, are significantly more important than price. Evaluation of the quote will be inclusive of all options. Offerors shall address all requirements in this combined synopsis/solicitation, and shall provide clear evidence of understanding of the Government's requirement and the ability and willingness to comply with the Government's specifications of need. Failure to address a specification/ requirement will be construed by the Government asinability to meet the need or the offeror's taking exception to it. All vendors are to include with their quotes, a completed copy of provisions 52.212-3, Offeror Representations and Certifications-Commercial Items, which may be downloaded from http://www.nist.gov/admin/od/contract/repcert.htm. The clause at 52.212-4, Contract Terms and Conditions-Commercial Items, applies to this acquisition. The clause at 52.212-5, Contract Terms and Conditions Required to Implement Statutes or Executive Orders -- Commercial Items, applies to this acquisition, including subparagraphs: (1) 52.203.6 Restrictions on Subcontractor Sales to the Government, with Alternate I; (3) 52.219-8, Utilization of Small Business Concerns and Small Disadvantaged Business Concerns ; (6) 52.222-26, Equal Opportunity; (7) 52.222-35, Affirmative Action for Disabled Veterans and Veterans of the Vietnam Era; (8) 52.222-36, Affirmative Action for Handicapped Workers; (9) 52.222-37, Employment Reports on Disabled Veterans and Veterans of the Vietnam Era; (10) 52.225-3, Buy American Act-Supplies; (15) 52.225-21, Buy American Act-North American Free Trade Agreement Implementation Act-Balance of Payments Program; and Department of Commerce Agency-Level Protest Procedures Level Above the Contracting Officer, which can be downloaded from the NIST Web Page at http://www.nist.gov/admin/od/contract/protest.htm. All interested parties should submit quotes by 3:00 PM, Washington, DC time, on August 5, 1998, to the National Institute of Standards and Technology, Acquisition and Assistance Division, ATTN: Joan Smith, Building 301, Room B117, Gaithersburg, Maryland 20899. Copies of above-referenced clauses are available upon request, either by telephone or fax (#301-963-7732). Posted 07/22/98 (W-SN226734). (0203)

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