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| Operation | |
Table 9 | Alarm messages - meaning and corrective action (continued) | ||||
Alarm |
| Cabinet | Special |
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Message | Location | Functions | Meaning and Corrective Action | ||
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| Battery Temp option must be installed and enabled. Battery Temp | |
Battery Overtemp | MMU | D, S | exceeds the programmed limit set in Alarm Settings screen for more than | ||
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| one minutes. | |
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| At least one of the following alarm conditions is present: Inverter Fault, | |
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| Rectifier Fuse Blown, Reverse Power, Overload Shutdown, logic power | |
Hardware |
| MMU | D# | supply failure or inverter output symmetry failure. The UPS module is | |
Shutdown |
| taken | |||
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| Contact Liebert Global Services at once. Do not attempt to reset the | |
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| circuit breakers. | |
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| SCC |
| The Emergency Module Off (or Emergency Power Off) switch has been | |
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| pressed, which caused the UPS system to shut down and transfer the | |
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Emergency Off |
| D*, L, S | load to the bypass line (or all power to the critical load has been | ||
MMU | shutdown). | ||||
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| Determine the cause of the emergency condition and correct it if possible. | |
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| Contact Liebert Global Services if you require assistance. | |
COOLING |
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| The intake air to the UPS module exceeds the specified maximum | |
Ambient |
| MMU | D, R, S | temperature. | |
Overtemperature | This condition only causes an alarm, but should be corrected immediately | ||||
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| to prevent damage to equipment due to overheating. | |
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| A fault in one or more of the blower motors has occurred. This condition | |
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| only causes an alarm, but if not promptly corrected it could cause an | |
Blower Failed | MMU | D, S | equipment overtemperature condition that would shut down the UPS | ||
module. | |||||
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| Check the blowers for proper operation. Contact Liebert Global Services if | |
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| you require assistance. | |
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| Sensors on power semiconductor heatsinks detect temperatures above | |
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| the steady state limits for these components. The control logic sets off the | |
Equipment |
| MMU | D, S | alarm but does not shut down the UPS module if the condition lasts less | |
Overtemperature | than 10 minutes. | ||||
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| Check the air intake, air exhaust and filters. Reduce the load or transfer it | |
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| to bypass. Contact Liebert Global Services if the alarm persists. | |
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| An Equipment Overtemperature condition has persisted for more than 10 | |
Overtemperature | MMU | D, F | minutes. The UPS module is taken | ||
Timeout |
| Check the air intake, air exhaust and filters before attempting to | |||
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| |||
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| the UPS. |
REMOTE MONITOR PANELS
(Refer also to SCC and module remote monitor indications and Other alarms that activate summary alarms in 3.2.6 - System Configuration Screens)
Load On UPS |
| SCC | R | The UPS is operating properly. No corrective action is necessary. | |
New Alarm |
| SCC | R | Another new alarm message has been registered on the UPS system. | |
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| Clear the new alarm condition, if possible. | ||
| MMU | R | |||
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| ||||
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| One or more of the UPS system alarm messages has been activated or a | |
System Summary | SCC | R | control logic failure has been detected by a watchdog timer. | ||
Alarm |
| Use the Present Status screen to determine which alarms are active. | |||
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| Clear the new alarm condition if possible to do so. | |
Module Summary | MMU | R | One or more of the UPS module alarm messages has been activated. | ||
Use the Present Status screen to determine which alarms are active. | |||||
Alarm |
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| Clear the new alarm condition, if possible to do so. | ||
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Table 9 Abbreviations |
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D = | L = latches |
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E = logs only; | R = remote |
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F = freezes; | S = summary |
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D* =
D# =
68