1800 Series User Manual
31
Warnings (cont.)
Warning | Display State | LED State |
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Input |
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| Warning/Fault | Flash | Alarm will | The input frequency is outside |
Frequency |
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| 60% | Flash | sound for 3 | specified limits. If the unit was online |
Regulation |
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| when the warning occurred it will | |
(see Note 1) |
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| beeps at | transfer to battery backup. After the |
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| backup the output will shutdown. If | ||
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| the unit was in bypass the output will | |
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| intervals. | |
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| be turned off. The unit will return to | |
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| normal operation if input frequency |
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| returns to within specified limits. |
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Output |
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| Warning/Fault | Flash | Alarm will | The connected load exceeds the |
Overload |
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| 150% | Flash | sound for 1 | UPS power rating. Reduce the |
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| second at | load attached to the UPS. The unit |
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| will automatically return to normal | |
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| when the load is reduced within the | |
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| intervals. | |
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| allowable time limit. If the load is | |
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| not reduced, the output will be shut |
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| down. (Details see Appendix B.) |
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= Flashing LED | = LED lit continuously |
Note 1: If any of these warnings occur while the UPS is in online mode it will immediately transfer to backup mode. In this case the percentage LED’s will be used to show the battery power status. To identify the cause of the warning listen to the number of consecutive beeps. One beep indicates an input undervoltage, two beeps means input overvoltage, three beeps is a frequency problem.
