Nortel Passport 15000, Установка и обслуживание оборудования, Страница: 648 / 874

648 Chapter 17 Hardware procedures
241-1501-240 5.2S2
Powering up a system of ac rectifiers
Power up a system of ac rectifiers to provide power to the breaker interface
panel (BIP).
Prerequisites
• You must be familiar with “Safety considerations and best practices”
(page 53).
• When the source of power to the BIP is a system of ac rectifiers, follow
the powering up instructions provided by the product. When the system
is an Astec MFA150 power system, have the Astec document 167-9021-
133 Advanced Power Systems MFA150 Modular Front Access Power
System Detailed Installation Guidelines and Procedures Manual
available to coordinate with the following procedure.
Procedure steps
1 At the front of the BIP, ensure that all of the breakers are off (O is pressed
in).
2 At the front of the MFA150 system, ensure that all of the mid-trip circuit
breakers labelled CB1 to CB4 on the front of the controller are switched
to OFF (fully down).
3 Locate the one or two shelves of ac rectifiers. Starting from left to right,
top to bottom, switch the circuit breaker on each rectifier to ON (fully up).
There are 3 or 5 rectifiers.
4 Locate the circuit breakers labelled CB1 to CB4 on the front of the
controller (top unit). Starting from left to right, switch the circuit breakers
CB1 and CB2 to ON (fully up). Switch on CB3 and CB4 if a second
Passport node is being powered from the controller.
5 Check each rectifier to verify that:
• the LED beside the label RFA on the faceplate is solid green
• the fan may not activate immediately, therefore the red LED stays
unlit
6 On the front of the controller, set the toggle switch to VOLTS. A nominal
reading at startup for the Passport 15000 or 20000 is around -52 V. A
reading below -46 V or above -59.5 indicates a problem.