Lucent Technologies CPS4000 - Page 120

Lucent Technologies -48V CPS4000/CPS4000 PLUS Cabinet Power System
5 - 28 Installation and Testing Issue 13 December 2000
Initial Start-up and Test, continued
High Voltage
Shutdown Test
Note: Batteries may need to be removed from the circuit for this
test.
High Voltage Shutdown Test
Step Action
1
Using the V Adj encoder, slowly increase the plant voltage
until the rectifier shuts down and the Alarm LED lights;
quickly reduce the plant voltage to approximately 54.5 volts
and verify that the rectifier restarts.
2
Turn all remaining rectifiers and/or converters On using the
On/Standby switches. Verify that the yellow Standby LED
extinguishes and the green ON LED lights on all power units.
3
Verify that the green Normal LED on the control unit lights
and all Alarm LEDs extinguish after all rectifier switches are
in the ON position.