PDU fault list
Display Message | Meaning | Corrective Action |
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Maintenance Bypass Alarm | The system is in maintenance | No corrective action necessary. |
| bypass: the Q2 switch is open |
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| and the Q3 switch is closed. |
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Output V | Evaluate the threshold setting. If necessary, | |
Voltage Under Limit | for phase | adjust it for your situation. |
| below the configured limit. |
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Output V | Evaluate the threshold setting. If necessary, | |
Voltage Over Limit | for phase | adjust it for your situation. |
| configured limit. |
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Output I L<n> | Current of output phase <n> | Evaluate the threshold setting. If necessary, |
Current Over Limit | exceeded the configured limit. | adjust it for your situation. |
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Output I L<n> | Current of output phase<n> | Evaluate the threshold setting. If necessary, |
Current Under Limit | dropped below the configured | adjust it for your situation. |
| limit. |
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Output FDev | Frequency of the output current | Evaluate the threshold setting. If necessary, |
Freq Out of Range | is above or below the range that | adjust it for your situation. |
| is configured as acceptable. |
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<User Contact Name> | A | Determined why the alarm has occurred. This |
Alarm Active | connected to the system is | is a |
| reporting an alarm condition. |
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No UPS Input | The Q1 circuit breaker is open, | Close the Q1 switch to |
Breaker Q1 Open | and the UPS is disconnected | utility/mains power. |
| from the input voltage. |
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No Panel Feed | The Q2 & Q3 circuit breakers | For safety reasons, ensure the switches were |
Breakers Q2 & Q3 Open | are open, and the system is not | not closed for maintenance purposes. If not, |
| supporting connected | close Q2 for UPS operation, and Q3 for |
| equipment. | maintenance bypass. |
Atypical Bypass Mode | The system state as set by the |
Alarm | Q1, Q2, & Q3 breakers is in a |
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Option 1: Resume normal UPS operation.
Option 2: Go to maintenance bypass.
26 | Symmetra PX 160 kW 400 V Operation |
