Global LF Series Pure Sine Wave Inverter/AC Charger 8/12KW User’s Manual Version 2.
Table of Contents 1. Important Safety Information ........................................................................................................................ - 3 1.1 General Safety Precautions ............................................................................................................ - 3 1.2 Precautions When Working with Batteries ..................................................................................... - 4 2. Introduction ...........................................
1. Important Safety Information Before using the Inverter read and save the safety instructions. All wiring must follow the National Electric Code, The Canadian Electrical Code Part 1, Provincial or other codes in effect at the time of installation, regardless of suggestions in this manual. All wires should be copper conductors. This manual contains important instructions for Models 8KW & 12KW To be followed during installation and maintenance of the inverter.
1.2 Precautions When Working with Batteries 1-2-1. If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enters eye, immediately flood eye with running cold water and seek medical attention immediately. 1-2-2. Never smoke or allow a spark or flame in the vicinity of a battery or engine. 1-2-3. Do not drop a metal tool on the battery. The resulting spark or short-circuit on the battery may cause an explosion. 1-2-4.
2.
-6-
-7-
2.
2.5.2 AC Charger Global LF Series is equipped with an active PFC (Power Factor Corrected) multistage battery charger. The PFC feature is used to control the amount of power used to charge the batteries in order to obtain a power factor as close as possible to 1.
Battery type selector Switch setting Description Boost / Vdc Float / Vdc 0 Charger Off 1 Gel USA 14.0 13.7 2 AGM 1 14.1 13.4 3 AGM 2 14.6 13.7 4 Sealed lead acid 14.4 13.6 5 Gel EURO 14.4 13.8 6 Open lead acid 14.8 13.8 7 LiFePO4 14.4 14.4 8 De-Sulphation 15.5 (4 Hours then Off) 9 Not used Above figures based on 12Vdc models, *2 for 24Vdc, *4 for 48Vdc. De-sulphation The de-sulphation cycle, switch position 8, is marked in red because this is a very dangerous setting if you do not know what you are doing.
Charging depleted batteries The Global LF series inverter allows start up and through power with depleted batteries. For 12VDC models: after the battery voltage goes below 10V and the power switch is kept in the "ON" position and the inverter stays connected to the battery and the battery voltage doesn’t drop below 2V, the inverter will be able to charge the battery once qualified AC inputs are present.
power switch is in “Unit Off” position, the inverter is powered off. When the power switch is turned to either of “Power Saver Auto” or “Power Saver Off”, the inverter is powered on. Power saver function is designed to conserve battery power when AC power is not or rarely required by the loads. In this mode, the inverter pulses the AC output looking for an AC load (i.e., electrical appliance).
2.5.6 Protections The Global LF series inverter is equipped with extensive protections against various harsh situations/faults. These protections include: AC Input over voltage protection/AC Input low voltage protection Low battery alarm/High battery alarm Over temperature protection/Over load protection Short Circuit protection (1s after fault) Back feeding protection When over temperature / over load occur, after the fault is cleared, the master switch has to be reset to restart the inverter.
2.5.
Greeting message of “Welcome to AIMS POWER” AC Status & Input Voltage “AC: abnormal” is displayed when AC input is not qualified. Output Voltage/Frequency and Output Current( in percentage) in Inverter mode Battery voltage Note: When the inverter is in Battery Priority mode, finishes a complete charging cycle and switches to inverter mode “AC:abnormal” will be displayed. In AC mode, the LCD will not display the status of the AC load. 2.5.
Allow at least 30CM of clearance around the inverter for air flow. Make sure that the air can circulate freely around the unit. Fan noise level <60db at a distance of 1m 2.5.11 DIP Switches On the DC end of inverter, there are 5 DIP switches which enable users to customize the performance of the device.
been detected. Then it will wake up from standby mode and start to invert electricity from the battery bank to supply the load. As this function is under Battery Priority, the inverter will always prefer to invert electricity from battery first even there is a qualified AC input present. Only when the battery voltage is lower than the low voltage alarm point, will the inverter switch to AC input power to charge the battery and supply the load at the same time.
provide optimal charging of each bank. The battery temperature sensor mounts on the side of a battery. The spec is listed below Inverter Condition Charger Mode Inverter Mode Temp on BST BTS ≥ 50℃(122℉) BTS ≤ 40℃(104℉) 40℃(104℉) ≤ BTS ≤ 50℃(122℉) BTS ≥ 50℃(122℉) Operation Automatically turns off charger Automatically turns on charger Increases the low voltage shut down point by 0.
3. Installation * All wiring must follow the National Electric Code, Install shall be in accordance with the Canadian Electrical Code Part 1 3.1 Location Follow all the local regulations to install the inverter. Please install the equipment in a location of Dry, Clean, Cool with good ventilation.
3.3 AC Wiring We recommend using 10 to 5 AWG wire to connect to the ac terminal block. When in AC mode the AC input power will supply both the loads and AC charger, a thicker wire gauge for AC Input is required. Consult a qualified electrician about the specific wire gauge required in terms of wire material and inverter power. There are 3 different ways of connecting to the terminal block depending on the model.
Caution: Wiring Option 2 and 3 are only allowed for split phase models (last letter of part # “S”). Wire all the other models according to Wiring Option 1. WARNING For split phase models, AC input neutral is not required in wiring. Never Connect Input Neutral to Output Neutral. Damage will result which is not covered under warranty. Always switch on the inverter before plugging in any appliance.
3.
4. Troubleshooting Guide Troubleshooting contains information about how to troubleshoot possible error conditions while using the Global LF Inverter & Charger. The following chart is designed to help you quickly pinpoint the most common inverter failures.
Symptom Inverter will not turn on during initial power up. Possible Cause Batteries are not connected, loose battery-side connections. Low battery voltage. No AC output voltage and no indicator lights ON. AC output voltage is low and the inverter turns loads OFF in a short time. Charger is inoperative and unit will not accept AC. Charger is supplying a lower charge rate. Inverter has been manually transitioned to OFF mode. Low battery.
5.
Appendix 1 Global LF Series Inverter & Charger Spec Sheet Electrical Specifications Model Continuous Output Power Surge Rating(20s) Capable of Starting Electric Motor Output Waveform Nominal Efficiency Inverter Line Mode Efficiency Output Power Factor Nominal Output Voltage RMS Output Voltage Regulation Output Frequency Short Circuit Protection Typical transfer Time THD Nominal Input Voltage Minimum Start Voltage Low Battery Alarm Low Battery Trip DC Input High Voltage Alarm & Fault High DC Input Recovery L
A.G.M 2 Sealed Lead Acid Gel Euro Open Lead Acid LiFePO4 De-sulphation Remote Control Input Voltage Waveform Nominal Voltage Low Voltage Trip Low Voltage Re-engage High Voltage Trip High Voltage Re-engage Max Input AC Voltage Nominal Input Frequency Low Frequency Trip Bypass & Protection Low Frequency Re-engage High Frequency Trip High Frequency Re-engage 14.6 14.4 14.4 14.8 14.4 15.5 for 4hrs Yes.
614-00047-00
