I/O Hardware / SCALEXIO DS2642 FIU & Power Switch Board HighFlex board for power-switching with Failure Insertion Unit Highlights n Central FIU n Switched battery voltage n Failure feedforward n High-precision current measurement on each channel Application The DS2642 FIU & Power Switch Board combines two com- n Power switches for simulating up to 10 switched ponents: potentials, for example, on terminal K15 n Central Failure Insertion Unit (FIU) for simulating failures for the I/O channels of the SCALEXIO HighFlex boards and MultiCompact units Central FIU Power Switch The central FIU on the DS2642 is connected to the failure The power switch provides 10 switchable channels, which routing units of the I/O boards via the fail rails. It switches supply current to the external devices such as ECUs and the failures for the channels on the boards. loads. The current can be measured simultaneously. The The following options are available: central FIU can also use the power switch channels to simu- n Broken wires on each individual channel, with or with- late short circuits to the supply to the ECU. The channels out bouncing as selected can be bundled to increase the current, and are selected in ® n Crossed wire between two channels, with or without Confi gurationDesk . Several DS2642s can be used in one bouncing SCALEXIO system. n Short circuit to a fi xed potential such as the supply voltage, with or without bouncing Current Measurement The power consumption of the connected components The failures are prepared on the I/O boards by relays, and can be measured precisely on each power switch channel. failure insertion is performed by semiconductor switches on the central FIU. The result is a fast switching frequency that enables loose contacts to be simulated. For information on the failure simulation function, please refer to Failure Simulation on p. 8. 20 2013 I/O Hardware / SCALEXIO Technical Details Parameter Specification Power switches (Power Switch 1) General n 10 channels for the ECU's current supply n Voltage 60 V n Continuous current 10 A per channel n Channel parallelization to increase the measurement range to max. 80 A (RMS) n Status LED for overall board status n 10 channel-specific LEDs for channel status (power switch open/closed) Current Measurement n Current measurement on each channel n Precision mode n Resolution 6.25 µA n Sampling time 0.135 s n Measurement range 0 ... 1.6 A n Dynamic mode n Resolution 150 µA n Sampling time 262 s n Measurement range 0 A ... 39 A Electronic fuses n 10 A RMS ECU (effective value) n Software-configurable and software-resettable Failure Insertion Unit General n Voltage ±60 V n Failure switch for up to 80 A n Continuous current for LC fail rail 80 A n Continuous current fail rail with low capacitance 1 A n Status LED for the FIU component Failure types n Broken wire n Short circuit to GND or U Bat n Crossed wire between two channels n All failures with optional bouncing Internal communication interface n IOCNET Physical data Physical size n 410 x 100 x 41 mm (16.1 x 3.9 x 1.6 in) n Requires 2 slots Voltage supply n 24 V Order Information Product Order Number DS2642 FIU & Power Switch Board n DS2642 21 2013