Troubleshooting
4.0TROUBLESHOOTING
4.1Active Alarms
In the event of an alarm, the User Interface LCD will display the last message regardless of the default screen. A list of possible alarm messages is displayed below. If you encounter one of these or other alarm messages and are unsure of the corrective action to take, please contact a qualified Lie- bert representative at the number listed on the back of this manual.
User Interface Text | Cause | Action |
|
|
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Main Control Failure | The Nfinity system has detected a | Identify and replace the failed System Control Module or |
| System Control Module failure. | contact Liebert Global Services for support. |
Power Module Fail | The Nfinity system has detected a Power | Identify and replace the failed Power Module or contact |
| Module failure. | Liebert Global Services for support. |
Battery Module Fail | The Nfinity system has detected a Battery | Identify and replace the failed Battery Module or contact |
| Module failure. | Liebert Global Services for support. |
Redun. Control Fail | The Nfinity system has detected a | Identify and replace the failed System Control Module or |
| System Control Module failure. | contact Liebert Global Services for support. |
Battery Card Failure | The Nfinity system has detected an | Identify and replace the failed Intellislot Battery Card or |
| Intellislot Battery Card failure. | contact Liebert Global Services for support. |
UPS On Battery | The Nfinity is drawing power from the | Verify input breaker is closed. Verify input voltage is |
| batteries, not from utility. | present and correct voltage. Verify input frequency is |
|
| correct. |
Reminder alarm - | The fan filter reminder time has elapsed. | Check and clean the fan filter and acknowledge the alarm. |
Check air filter |
| This alarm may be disabled or the interval between these |
|
| alarms can be configured via the User Interface. |
Short Circuit | User tried to turn the output on following a | Wait for at least 30 seconds and then turn the output on. |
Recovery - Please | short circuit on the output without waiting |
|
Wait | for the required 30 seconds to expire. |
|
Power Module N+1 | Number of power modules is not | Reduce the UPS’s load, add power modules to the frame |
Redundancy Alarm | adequate to provide power redundancy. | or disable the alarm feature via the User Interface. |
Output Off - Output | A short circuit was detected on the output. | Correct short (or extreme overload condition) and turn on |
Short Circuit |
| the UPS’s output. |
UPS Output | The load on the Nfinity exceeded the | Reduce the UPS’s load or add power modules. |
Overload | capacity of the active power modules. |
|
Output exceeds | This will occur if the max load alarm is | Reduce the UPS’s load, increase the Maximum Load |
max load setting | enabled, and the measured load at the | Alarm limit via configuration or disable the Maximum Load |
| UPS’s output is greater than the value | Alarm limit via configuration. |
| set. |
|
Output Off- | Normally a severe overload will cause the | Reduce the UPS’s output load and verify that the UPS’s |
Overload, bypass | unit to go to automatic bypass. This event | bypass source is qualified (amplitude and frequency). |
unavailable | informs the user that bypass was not | Verify that the configuration voltage and frequency |
| qualified so the unit dropped the load to | settings are properly selected. |
| protect itself. |
|
Switch To | The Nfinity is on automatic bypass. | Transfer Nfinity to manual bypass and call Liebert service |
Manual Bypass | Manual bypass switch should be | for assistance. |
| activated before servicing. |
|
Load Exceeds | The measured load on the output will | Reduce the UPS’s load or add battery capacity. If external |
Battery Module | cause the battery modules to exceed their | |
Capacity | limits if the UPS transfers to battery | UPS’s configuration is set to match the external battery |
| mode. | |
Bypass source | The input voltage is not within the | Verify UPS’s configuration for voltage and frequency. |
not qualified | specified voltage or frequency range so | Check UPS’s input breaker; disable this alarm if desired |
| the UPS will not allow an automatic or | via configuration. |
| manual transfer to bypass. |
|
Load exceeds | Load is greater then the rated frame limit. | Reduce the UPS’s load. |
frame limit |
|
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