Magnum Energy MS Series Owner's Manual

Contents

Magnum Energy MS Series Owner's Manual Manual pdf 44 page image

© 2009 Magnum Energy IncPage 38Installation2.9 Functional TestAfter all electrical connections to the inverter, batteries, AC source, and sub-panel have beencompleted; follow these steps to test the installation and the inverter operation.CAUTION: Use a multimeter to verify the correct DC voltage for your particular invertermodel (i.e., 24-volt battery bank for a 24-volt inverter) and ensure the polarity of thebattery voltage is correct (battery positive connected to inverter positive terminal andnegative battery connected to inverter negative terminal).1. Apply battery power to the inverter by closing the DC circuit breaker. The inverter will remainOFF, but the green status indicator on the front of the inverter will quickly blink once to indicatethat DC power has been connected and is ready to be turned on.2. Prior to turning on the inverter, make sure all AC loads (i.e., appliances) are NOT connectedto the inverters output or any AC outlets powered by the inverter.3. Lightly press and release the inverter’s ON/OFF switch to turn the inverter ON. Verify theinverter’s status indicator is blinking - indicating the inverter is ON.4. Connect a light bulb no larger than 10 watts to the inverter output and verify it comes on and shinesnormally. DO NOT connect anything but a light bulb, until all wiring and voltages are confirmed tobe correct.Info: The inverter’s AC output voltage will not be correct until a load greater than5 watts (5 watts is default setting) is connected to the inverter; or the search modeis turned OFF with a remote display (ME-RC). The 10 watt (or greater) light bulb isused because it is a sufficient load to bring the inverter out of “search” mode up tofull voltage.5. Check the AC output voltage of the inverter by connecting an AC voltmeter to the outputterminals as shown in figure 2-25 and verify the correct output voltages.6. Press and release the inverter’s ON/OFF switch to turn the inverter off. The inverter’s statusindicator and the connected load should go off.7. Apply AC power to the inverter’s AC input. After the AC input power is qualified (approximately15 seconds), the incoming AC power will transfer through the inverter to the inverter’s AC outputand power the light bulb. Verify the inverter’s status indicator and the light bulb comes on.8. Even though the light bulb is on, the inverter is currently disabled (off). Press and release theON/OFF switch on the inverter to enable (turn-on) the inverter.9. Disconnect the incoming AC power to the inverter. Verify the light bulb remains on and is nowpowered by the inverter.If the inverter passes all the steps, the inverter is ready for use. If the inverter fails any of thesteps, refer to the Troubleshooting section.Figure 2-25, AC Voltage ChecksA C T e rm in a l B lo c kA C O u tp u t120 V ac( ± 5% )N eu tral to G ro u n d< 0.5 V ac3 030