National Instruments NI DIDS-2103, Руководство пользователя

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NI DIDS-2100 Series User Manual | © National Instruments | 43
a supply having the same voltage as the individual supplies, but double the current capacity. Please refer to the
power supply documentation for wiring instructions .
DI Driver System Support of External Power Supplies for NI 9751 Modules
The operating range of the NI 9751 Direct Injector Driver Module can be extended by providing the NI 9751 an
external high-voltage power supply. The DIDS-2103, DIDS-2106, DIDS-2109, and DIDS-2112 all are capable of
communicating with TDK Lambda Genesys power supplies via RS-232 to program various supply parameters . NI
Powertrain Controls typically recommends a 750 W supply; the optimal voltage and current capabilities of that supply
will depend upon the particular application for DI Driver System. For more information, please contact NI Powertrain
Controls .
Power Wiring Guidelines
NI recommends powering and grounding each component in the system in a star-wiring configuration, such that
each component is wired individually from a single star-point for both positive and negative terminals of the power
supply buses. In contrast, it is not recommended to power the components in a daisy-chain configuration because it
will cause some modules to experience supply voltage fluctuations.
NI recommends using crimped ferrules on all wires entering screw terminal connections.
DI Driver System Component Diagrams and Connector Pinouts