If you are reinstalling the software or have replaced a UPS battery you may need to change the battery replacement information. Effective testing of a UPS system is a complex and potentially dangerous operation if you don't do it correctly. Solved: I have alarm #149 showing on my Dell Rack 1000W UPS. Overload alarm lights and sound. The same condition will exist in a UPS system with a (single) battery ground fault. system inside the UPS . ANSI American National Standard Institute. Then I opened it to see if there are components that are burned or leak but nothing. The unit will continue to run, but a battery ground leakage detection monitor will sense the ground current, and then can trigger an alarm on the monitor, and/or through a “building alarm” in the UPS. The alarm will be active a maximum of 10 days. System detected Damaged or Corrupted iButton. If the alarm is still present please follow the standard RMA process and request a replacement unit. BYPASS NOT AVAILABLE in the display : This is not a fault with the UPS, but a warning to you that the incoming mains is out of tolerance and is therefore not available as a bypass path should it be needed by the UPS. After the duration of 30 days, the user will be able to access only the fol- a “ground fault” alarm. I can't find a fault finding guide anywhere, other than 'engineer required'. The UPS repeats the alarm every five hours. ... AC or ac Alternating current, also implies root-mean-square (rms). (2) The FAULT / LOCK codes can only be displayed if they are active (presence of a fault/alarm or a lock). The gui on the home page mentions 1 Critical Alarm Present - Site Wiring Fault. I unplugged the PC and I replaced the battery but I have not solved the problem. The user manual says this alarm is "A faulted battery string has been detected and The power flow will show green from Utility 2 to the load. The warning has been active 20 days and has transitioned to an alarm. Alarm Warning of a fault or major status change condition. After 10 years of successful uninterrupted operation, the UPS systems in our data center failed. Lock (2): the corresponding code is displayed (1) The values shown in the images in the table are purely as an indication. Although this incident stranded us without power for only minutes, the recovery process took months. Additionally, the location of the ground fault and the resistance of the fault path can affect the detection and alarm capability of the circuit. C. A fault in the battery is much more serious since battery problems are not easily detected when the UPS is in normal stand-by mode. See embedded image. Displayed Alarm Messages 4 iButton Fault Alarm (TLS4/TLS-450PLUS only) System iButton failure. Can anyone translate what its trying to say? These detection circuits are reportedly the most sensitive and most prone to nuisance alarms. My ups, after 5 years of continuous operation shows the overload's light . The alarm stops when the battery passes the self-test. Single-Module UPS On Bypass If there is a major fault in the UPS it will transfer to bypass. Perform the self-test procedure to confirm replace battery conditions. An internal fault in the UPS or a problem with the motor-generator set is usually not a critical condition, an alarm signal will give you an early warning before the power is lost. Fault / Alarm (2): the corresponding code is displayed . We have an APC SURT5000XLI UPS that will not power up. Hi Admins, I have a question on the APC Smart-UPS 1000RM. It just has an illuminated Fault LED, and the 3rd and 4th Battery Level LEDs on. My UPS vendor has checked the ups and mentioned that the fault is due to the incoming supply having issues which I googled on … Consequently, the UPS manufacturer may set alarm trigger levels to limit nuisance alarms. 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