Chapter 3
Maintenance
©
National Instruments Corporation
3-3
4.
Clean the fan filter by moving the filter around under a gentle stream
of cold tap water until all the dust has been removed. Dry the filter.
5.
Replace the fan filter by aligning the fan and filter with the fan holes,
making sure that the label side of the fan is face down. Reinstall the
four screws and make sure the assembly is secure.
Resetting the AC Main Circuit Breaker
If your PXI subsystem encounters an over-current condition, the circuit
breaker located on the rear panel will trip to prevent chassis damage. Refer
to Figure 1-2,
Front View of the PXI-1050 Chassis
, and Figure 1-3,
, as you complete the following steps:
1.
Turn off the PXI power switch.
2.
Depress the circuit breaker to reset it.
3.
Turn on the PXI power switch.
If the circuit breaker trips again, complete the following steps:
1.
Turn off the PXI power switch.
2.
Remove all modules from the chassis.
3.
Depress the circuit breaker to reset it.
4.
Turn on the power switch and verify that the circuit breaker does
not trip.
5.
Verify that your PXI-1050 can meet the power requirements of your
CompactPCI or PXI modules. Overloading the chassis can cause the
breaker to trip. Refer to Appendix A,
, for power
requirements.
6.
The over-current condition that caused the circuit breaker to trip may
be due to a faulty CompactPCI or PXI module. Refer to your module
documentation to troubleshoot your modules.
