Appendix C
C-7
Configuring the OS for the PowerTrust UPS
Power Failing the UPS
Power Failing the UPS
Before forcing an AC input power failure to test the UPS and its communication with the
system, wait for the system to establish communication and initialize the UPS.
On a MPE/iX system, it takes the system about 30 seconds from the time it finishes
downloading the DTCs with their firmware to be ready to respond to UPS events. As the
system is finishing its boot up process, watch the system console for the message:
nmev #`00@234 dtmc c0000303 code download completed for DTC address 080009281E05.
Wait 30 seconds after that message appears, and then perform the power fail test.
For either HP-UX or MPE/iX systems, use this procedure to power fail a system:
1. Check that the system is not performing critical processes.
2. Use the wall breaker to cut the power for the circuit that is supplying power to the UPS.
Do NOT use the rear panel circuit breaker to power fail the system.
3. Wait one (1) full minute.
4. Verify that messages are displayed on the console.
5. Verify that the indicators are normal for battery power:
AC Output
lit
Battery Power
lit
Attention
not lit
Alarm 1 beep
6. Use the wall breaker to return power to the UPS AC input circuit.
CAUTION
Do NOT pull the power cord. This would compromise the electrical fault
protection because it provides grounding.
Summary of Contents for PowerTrust A3589A
Page 7: ...Contents Contents 5 ...
Page 8: ...Contents 6 Contents ...
Page 10: ...Contents 8 Figures ...
Page 12: ...Contents 10 Tables ...
Page 14: ...2 ...
Page 20: ...Preface 8 ...
Page 22: ...Preface 10 ...
Page 52: ...1 30 Chapter1 Overview Specifications Figure 1 8 UPS Input Voltage Transfer Points ...
Page 56: ...1 34 Chapter1 Overview UPS Modes Figure 1 10 Simplified UPS 5 5 kVA UPS Block Diagram ...
Page 62: ...1 40 Chapter1 Overview Support Information ...
Page 76: ...2 14 Chapter2 Unpacking and Inspecting Shipping and Storage Requirements ...
Page 104: ...3 28 Chapter3 Installing the UPS Examples of PowerTrust Connections in a System ...
Page 116: ...5 4 Chapter5 Verification Procedures Load Testing ...
Page 148: ...7 6 Chapter7 Cleaning and Maintenance Exchanging Batteries Fan ...
Page 190: ...A 42 AppendixA HP UX UPS Monitor Error Messages Log Only Messages ...
Page 218: ...C 8 AppendixC Configuring the OS for the PowerTrust UPS Power Failing the UPS ...