Troubleshooting the Uninterruptible Power Supply Device

2021-11-10

This time I have some uninterruptible power supply (UPS) device troubleshooting cases that I have prepared to share with all of you.

So, I am going to answer some questions you might have regarding issues with UPS in a Q&A format!

Contents
Case 1: Why does the alert keep ringing on my UPS device?
Case 2: The battery on my UPS device is 100% charged, but why is the backup time extremely short?
Case 3: Why does the power turn off as soon as the equipment is connected to the UPS device?

Case 1
Question: Why does the alert keep ringing on my UPS device?

Did the power properly charge your UPS device?
If the input voltage is unstable, then the UPS device may recognize that the power supply has stopped. The device may then automatically shift to backup mode.

Case 2
Question: The battery on my UPS device is 100% charged, but why is the backup time extremely short?

The battery life on our Classic Pro UPS devices lasts up to 1 year to 1.5 years. If the ambient temperature is high, the battery life will be shorter, so the battery must be checked and replaced earlier than usual.
In this case, the battery capacity may have decreased due to the battery life.
Even if the battery is fully charged and the screen is displaying at 100% charge, unfortunately the battery’s lifespan is coming to an end and the battery is no longer able to perform at full capacity.
Please replace the UPS battery first and check if it properly works.

*Precautions when replacing the battery
In rare cases, the electrolyte in the battery may leak depending on the condition of the battery.
If the electrolyte leaks out, do not touch it with your bare skin. We recommend wearing rubber gloves also in order to prevent electric shock when replacing the battery.

Check out this video to learn how to replace the battery.

This list shows the backup time of our Classic Pro UPS devices (when the batteries are operational and fully charged).
Please refer to this list to check the backup time.

	バックアップタイム
	UPS500LX	UPS1200LX	UPS1000PSII	UPS2000PSII	UPS1000RT
使用電力	500VA/300W	1200VA/720W	1000VA/800W	2000VA/1600W	1000VA/800W
50W	35分 20秒	1時間 10分 20秒	69分	129分 00秒	69分
100W	12分 12秒	35分 24秒	24分 1秒	76分 48秒	24分 1秒
200W	4分 56秒	16分 01秒	19分 54秒	37分 39秒	19分 54秒
300W	47秒	08分 21秒	14分 20秒	23分 28秒	14分 20秒
400W	-	05分 05秒	8分 30秒	16分 25秒	8分 30秒
500W	-	03分 08秒	7分 19秒	12分 20秒	7分 19秒
600W	-	51秒	5分 00秒	9分 19秒	5分 00秒
700W	-	30秒	3分 00秒	7分 29秒	3分 00秒
800W	-	-	2分 30秒	5分 37秒	2分 30秒
900W	-	-	-	4分 43秒	-
1000W	-	-	-	4分 18秒	-
1200W	-	-	-	3分 25秒	-
1400W	-	-	-	2分 37秒	-
1600W	-	-	-	1分 37秒	-

Case 3
Question: Why does the power turn off as soon as the equipment is connected to the UPS device?

The UPS device has an output power capacity limit.
In particular, in the case of equipment that requires a temporary large current, you have to be careful as it may exceed the instantaneous output power capacity limit of your UPS device.
If your UPS operates properly with other equipment (different amount of load), the problem is likely due to the inrush current of the connected device (load) causing momentary capacity overload.
Also, be careful not to connect the following devices:

Mobile air conditioner
Vacuum cleaner
Hairdryer
Fan, air circulator

etc.

This time, I shared some frequently asked questions about the UPS device.

The UPS device can be a very useful item in the event of a power outage.
However, it has to be regularly maintained and checked for proper function.
When installing the UPS device, please keep it in a place where you can keep an eye on it frequently. Proper maintenance will keep your UPS device running so that you can safely backup and protect your valuable equipment and data without worry!
If you have not maintained your UPS device, please consider checking it frequently from now on.

■List of Uninterruptible Power Supply (UPS) Device

Tsukasa Horie

社会人経験を経て、ESPギタークラフトアカデミー卒業後、楽器音響業界へ。音響機器修理エンジニア就いて10年。PA音響機器の修理を中心に数多く携わってきました。年々修理分野の幅を広げ、現場で培ってきた知識・経験・技術を土台に、時代とともに変化する新しい技術や製品へ対応すべく歩み続けています。主にJBL、QSC、BEHRINGER、SUMMITAUDIOを中心とした音響機器の修理に従事。電源機器の修理サポートも行っています。第2種電気工事士資格保有。