GMW › Complete Document History General Specification for Electrical/ Electronic Components and Subsystems, Electromagnetic Compatibility Global. GMW, GMW and GMW (All three documents of specifications that apply to GMW EMC test The GMW EMC Test Plan (Appendix B). These requirements have “gone global” in the form of GM Worldwide (GMW) EMC .. GMW – Validation Acceptance Process (EMC Control Plan).
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Test results obtained from testing prior to test plan approval shall not be gmq in a validation report. A plated thru-hole on a printed circuit board to route a signal between layers. F Linear Power Supply. An electrical circuit diagram is preferred.
PCB to Case connections may need to be made only near the vehicle interface connector, not at all 4 corners. Providing separate power feed structure to main?
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Usually used within the circuit board. Include any additional information required to gkw DUT operation during test, including data bus messages, and special test software.
For some single-directional BM motor applications that are low-side switched in the case of some washer pump motor vehicle electrical architecturesthe motor case must not be galvanically connected to the motor windings e.
Passenger vehicles, light duty trucks and medium duty trucks. Specify special test arrangements that apply to this test. All of the pins should have 1 nF to 15 nF capacitor that will not affect proper functionality.
B2 Printed Circuit Board B2. Direct Access Physical touching? A complete electrical schematic of any and all terminations on each of the DUT circuits gnw the load box connector s to the DUT e.
Energy and heat transfer engineering The simulators shall be in non-metallic housings and isolated from the ground plane.
There should be at least one bulk storage capacitor on the PCB. List all PCB numbers that this test plan is applicable to. Shipbuilding and marine structures 3130 it is found necessary to current starve a tri-state buffer, for example see Figure B1, also Figure B6it is recommended that each of the inputs referenced to VCC also have provisions for the same current starving g,w. Requires state change between asserted to non-asserted, back to asserted states during radiated immunity RF “on” exposure, reported directly by communication or indicate indirectly via output state change by detected input e.
These would include any function generator signals, inputs, DC supplies, communication links, fiber optics for video links, pressurized shop air, etc. These inputs typically apply to the simulator only, but some simple devices, such as DC brush commutated motors, may not require simulators, shall be supplied either within the load simulator, by support equipment provided by the supplier, or by the EMC test lab.
Audio and video engineering For the following RE 3. Dirty If, after placing the capacitance, the waveform develops a non-linear hump refer to image on rightit may be necessary to current starve the power feed to the?
Interaction with other vehicle systems and interfaces, including all connector pins and their function, as well as anticipated packaging information. PCB vias for this connection should be connected using 0? Always provide test data to support claims that any of these recommendations will have negative results on product performance.
Unless otherwise specified in the EMC Test Plan, in order to ensure a refreshed value, all information related to data monitoring such as analog input voltages, operating states, etc.
Removing Hump from Waveform B4. Modifications, alterations, internal part swaps, hardware and software changes are not considered carryover and must be validated according to the requirements.
Glass and ceramics industries Photographs with sufficient clarity to enable compliance with the test plan to be verified.
General Theory of Operation inclusive of how it is used in the vehicle. GMW 6 Notes 6. All connections to power and ground planes have to be very short runs – Pin Ggmw Plane with low inductance paths unless the tester is current starving the IC, refer to B2.
If a section is not applicable, this shall be stated in the document after the relevant section description. Domestic and commercial equipment. F, whichever is greater. Refer to manufacturers’ recommendations. This document is one out of a series of three global EMC standards documents that specify EMC test and validation requirements. Populate around vias gms the pad that is to be referenced to ground, no long paths or traces.
Brief family description of DUT hmw. Care must be taken to ensure functionality, such as oscillator startup. More detailed appendices for design review and test plan.