Controller - Institute of Transportation Engineers
Controller - Institute of Transportation Engineers
Controller - Institute of Transportation Engineers
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Less than 0.2% rms, 1% peak to peak or 50 mV, whichever is greater.<br />
4.5.6.5 Voltage Overshoot<br />
No greater than 5 %, all outputs.<br />
4.5.6.6 Overvoltage Protection<br />
130% Vout for all outputs.<br />
4.5.6.7 Overload & Short Circuit Protection<br />
Power foldback point 120% <strong>of</strong> max rated power<br />
Circuit Protection<br />
Automatic recovery upon removal <strong>of</strong> fault.<br />
4.5.6.8 Inrush Current<br />
Cold Start Inrush shall be less than 25A at 115VAC.<br />
4.5.6.9 Transient response<br />
Output voltage back to within 1% in less than 500 µs on a 50% Load change. Peak<br />
transient not to exceed 5%.<br />
4.5.6.10 Holdup Time<br />
The power supply shall supply 30 watts minimum for 550 ms after ACFAIL going LOW.<br />
The supply shall be capable <strong>of</strong> holding up the Unit for two 500 ms Power Loss periods<br />
occurring in a 1.5-second period.<br />
4.5.6.11 Remote Sense<br />
+5 VDC compensates 250 mV total line drop. Open sense load protection required.<br />
4.6 Unit Chassis and Type 2070-5 VME Cage Assembly<br />
4.6.1 General<br />
4.6.1.1<br />
The Chassis shall consist <strong>of</strong> the metal housing, Serial Motherboard, Back-plane<br />
Mounting Surface, Power Supply Module Supports, slot card guides, Wiring Harnesses,<br />
and Cover Plate(s).<br />
Standard for the ATC – Type 2070 March 29, 2001<br />
69
Change language