1. Important Safety Warning Please comply with all warnings and operating instructions in this manual strictly. Save this manual properly and read carefully the following instructions before installing the unit. Do not operate this unit before reading through all safety information and operating instructions carefully.
1-4. Operation Do not disconnect the mains cable on the UPS system or the building wiring outlet ⚫ (shockproof socket outlet) during operations since this would cancel the protective earthing of the UPS system and of all connected loads. The UPS system features its own, internal current source (batteries). The UPS output ⚫...
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When changing batteries, install the same number and same type of batteries or ⚫ battery packs. Manufacturer Type Rated LIFE-485000 48 V dc, 5.0 Ah 76.8 V dc, 2.5 Ah LIFE-722500 Please replace the fuse only with the same type and amperage in order to avoid fire ⚫...
2. Installation and setup NOTE: Before installation, please inspect the unit. Be sure that nothing inside the package is damaged. Please keep the original package in a safe place for future use. 2-1. Rear panel view IEC Type 1.5K NEMA Type 1.5K 1.
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8. Emergency power off function connector (EPO) 9. External battery connection...
2-2. Operating principle The operating principle of the UPS is shown as below Output Input Dynamic Bypass The UPS is composed of mains input, EMI/RFI Rectifier Inverter EMI/RFI filters, rectifier/PFC, Filters /PFC inverter, battery charger, DC-to-DC converter, battery, dynamic bypass and DC-to-DC Converter UPS output.
National Electrical Code, ANSI/NFPA 70 and the Canadian Electrical Code, Part I, C22.1". Model P91-1.5kLi/P91g-1.5kLi P91-2kLi/P91g-2kLi P91-3kLi/P91g-3kLi Note: Check if the site wiring fault indicator lights up in LCD panel. It will be illuminated when the UPS is plugged into an improperly wired utility power outlet (Refer to Troubleshooting section).
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non-critical devices to the programmable outlets and critical devices to the general outlets. During power failure, you may extend the backup time to critical devices by setting shorter backup time for non-critical devices. Step 3: Communication connection Communication port: USB port RS-232 port Intelligent slot To allow for unattended UPS shutdown/start-up and status monitoring, connect the...
Step 6: Turn on the UPS Press the ON/Mute button on the front panel for two seconds to power on the UPS. Note: The battery charges fully during the first five hours of normal operation. Do not expect full battery run capability during this initial charge period. Step 8: Install software For optimal computer system protection, install UPS monitoring software to fully configure UPS shutdown.
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front panel. Step 4 Step 5 Step 6 After replacing the batteries, Re-connect the battery Put the front panel back to the put the battery box back to wires. unit. original location and screw it tightly.
3. Operations 3-1. Button operation Button Function ➢ Turn on the UPS: Press and hold ON/Mute button for at least 2 seconds to turn on the UPS. ➢ Mute the alarm: After the UPS is turned on in battery mode, press and hold this button for at least 3 seconds to disable or enable the alarm ON/Mute system.
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Function Display Backup time information Indicates the estimated backup time. H: hours, M: minute, S: second. Configuration and fault information Indicates the configuration items, and the configuration items are listed in details in section 3-5. Indicates the warning and fault codes, and the codes are listed in details in section 3-7 and 3-8.
3-3. Audible Alarm Battery Mode Sounding every 5 seconds Low Battery Sounding every 2 seconds Overload Sounding every second Fault Continuously sounding Bypass Mode Sounding every 10 seconds 3-4. LCD display wordings index Abbreviation Display content Meaning Enable Disable Escape High loss Low loss Active open...
3-5. UPS Setting There are three parameters to set up the UPS. Parameter 1 Parameter 1: It’s for program alternatives. Parameter 2 Refer to below table. Parameter 2 is the setting options or values for each program. 01: Output voltage setting ⚫...
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04: ECO enable/disable ⚫ Interface Setting Parameter 2: Enable or disable ECO function. You may choose the following two options: ENA: ECO mode enable DIS: ECO mode disable (Default) 05: ECO voltage range setting ⚫ Interface Setting Parameter 2: Set the acceptable high voltage point and low voltage point for ECO mode by pressing Down key or Up key.
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For 120 Models 85-115: setting the low voltage point in parameter 3 from 85Vac to 115Vac. (Default: 85Vac) 08: Bypass frequency range setting ⚫ Interface Setting Parameter 2: Set the acceptable high frequency point and acceptable low frequency point for Bypass mode by pressing the Down key or Up key.
Interface Setting Parameter 2: Set up the charger maximum current. 1/2/4/6/8: setting the charger maximum current 1/2/4/6/8 in Ampere. (Default: 4A) Recharge time VS charging current is as below table. Unit: hours 1500VA 2000VA 3000VA 11.4 16: EPO logic setting ⚫...
Online mode When the input voltage is within acceptable range, UPS will provide pure and stable AC power to output. The UPS will also charge the battery at online mode. ECO mode Energy saving mode: When the input voltage is within voltage regulation range, UPS will bypass voltage to output for energy saving.
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Sounding every 2 seconds Over Charge Sounding every 2 seconds Site wiring fault EPO enable Sounding every 2 seconds Over temperature Sounding every 2 seconds Charger failure Sounding every 2 seconds Sounding every 2 seconds Battery fault (At this time, UPS is off to remind users something wrong with battery) Out of bypass voltage range Sounding every 2 seconds...
4. Troubleshooting If the UPS system does not operate correctly, please solve the problem by using the table below. Symptom Possible cause Remedy No indication and alarm even The AC input power is not Check if input power cord though the mains is normal. connected well.
Symptom Possible cause Remedy Fault code is shown as 14 on LCD The UPS shut down Check output wiring and if display and alarm is continuously automatically because connected devices are in sounding. short circuit occurs on the short circuit status. UPS output.
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