American Power Conversion Redundant Switch operation manual

Page 23

 

Troubleshooting

Troubleshooting

With the high availability system, the attached UPSs are polled

communications

continuously for capability to carry a load and ability to

and lost

communicate with the management software (PowerChute

redundancy

plus). When a problem with one of the UPSs occurs, power to

 

the load is not interrupted and polling continues, and

 

PowerChute plus responds by displaying the message, “Self

 

test failed: invalid test.”

 

Communications Problems. If the message “Self test failed:

 

invalid test.” occurs repeatedly:

 

1. Check the communications path between the UPSs and

 

the Redundant Switch.

 

2. Check the front panel of the Redundant Switch.

 

– If the Status Select LEDs are flashing in any sequence,

 

the Redundant Switch has failed. See “Basic

 

troubleshooting” on page 18.

 

– If the front panel appears normal, there may be a UPS

 

or server communications problem, See the

 

troubleshooting and service sections of your UPS

 

manuals.

 

– If you need more help, contact APC Worldwide

 

Customer Support.

 

Loss of Redundancy. If the Redundant Switch LED for UPS-B

 

is off, UPS-B has lost the ability to provide power to the

 

equipment load when engaged. If the LED for UPS-A is off,

 

UPS-A has failed, and power is now provided by UPS-B. See

 

the troubleshooting and service sections of your UPS manuals.

If PowerChute plus displays the message “self test failed: invalid test” briefly or several times, the output voltage of UPS-A has dropped. Perform a UPS self-test through PowerChute plus.

•If the self test fails, see the troubleshooting and service sections of your UPS manuals.

•If you need more help, contact APC Worldwide Customer Support.

APC Redundant Switch: Installation and Operation Manual

19

Page 22 Page 24
Image 23
Page 22 Page 24
Contents APC Redundant SwitchThis manual is available in English on the enclosed CD Contents Page Before You Begin Part Number Description Quantity Pre-Installation ProceduresVoltage Source Input Load Output Available ModelsModel SU043 Model SU045-1 SU042-4Do not remove this deviceInstallation Following example shows how to attach the bracket for See Appendix a Rack-Mount Supplement Installation To the front of the Redundant Switch, connect Use two people to lift the Redundant Switch Turn on the equipment and Redundant Switch Both UPSs must be the same sine-wave model ConfigurationRestart the computer on which PowerChute plus is Function LED Display Description OperationYou can use a remotely operated Emergency Power Off EPO LED Display Status of Source Function Select LED Indicator. The three green FunctionFunction Status LED Indicator. The green Function Status Problem Possible Cause Corrective Actions TroubleshootingContinuously for capability to carry a load and ability to Specification SpecificationsSU043 and SU044-1 SU045 Appendix a Rack-Mount Supplement Type of Rack Hole Type Hardware Required Fitness for a particular purpose. Some jurisdictions do Warranty and ServiceExcept as provided herein, APC makes no warranties Express or implied, including warranties of merchantabilityWarranty and Service Life-Support Policy Page Radio Frequency Interference USA APC Worldwide Customer Support
Top Page Image Contents