Справочник Пользователя для National Instruments NI PXI-1056

Скачать
Страница из 65
Chapter 3
Maintenance
© National Instruments Corporation
3-3
Resetting the AC Mains Circuit Breaker
If the PXI-1056 is connected to an AC source and encounters an 
over-current condition, the circuit breaker on the rear panel will trip to 
prevent damage to the chassis. Complete the following steps to reset the 
circuit breaker.
1.
Set the front-panel power switch to the Off position.
2.
Disconnect the AC power cable.
3.
Depress the circuit breaker to reset it.
4.
Reconnect the AC power cable.
5.
Set the power switch to the On position.
If the circuit breaker trips again, complete the following steps.
1.
Press the front-panel power switch to the Standby position.
2.
Disconnect the AC power cable.
3.
Remove all modules from the chassis.
4.
Complete the procedure described in th
 
section of Chapter 2, 
If any of the 
monitoring LEDs are not a steady green, contact National Instruments.
5.
Verify that the PXI-1056 can meet the power requirements of your 
CompactPCI or PXI modules. Overloading the chassis can cause the 
breaker to trip. Refer to Appendix A, 
6.
The over-current condition that caused the circuit breaker to trip may 
be due to a faulty CompactPCI or PXI module. Refer to the 
documentation supplied with the modules for troubleshooting 
information.
Replacing the Modular Power Supply
This section describes how to remove, configure, and install the PXI-1056 
power-supply shuttle.
Caution
Disconnect the power cable prior to replacing the power supply shuttle.
Before connecting the power-supply shuttle to a power source, read this 
section and the Read Me First: Safety and Radio-Frequency Interference 
document included with the kit.