Magnum Energy MMS Series User Manual

Page 32

3. Prior to turning on the inverter, make sure all connected loads

(e.g., appliances) are switched OFF or disconnected from the
AC outlets.

4. a) If a remote switch is connected, press the ON/OFF switch to

turn the inverter on.
b) If there is no remote switch connected, lightly press and release
the inverter’s ON/OFF power switch—located on the top of the
inverter—to turn the inverter on.
Verify the inverter’s status indicator is blinking—indicating the
inverter is providing AC power.

5. Connect a 10-25 watt light bulb to the inverter output and verify

it comes on and shines normally. DO NOT connect anything
larger than a 25-watt light bulb until all wiring and voltages are
confi rmed to be correct.

Info: The inverter’s AC output voltage will not be correct
until a load greater than 5 watts (default setting) is
connected to the inverter; or, Search mode is turned off
with a remote display (ME-RC, ME-ARC, or ME-RTR). A
10-25 watt bulb is used as it is a suffi cient load to bring
the inverter out of Search mode and up to full voltage.

6. Check the AC output voltage of the inverter by connecting a true

RMS multimeter to the outlets powered by the inverter. Verify the
voltage is 120 VAC +/- 5 VAC. If not using a true RMS meter, the
output AC voltage could indicate from 90 to 130 VAC depending
on the battery voltage.

7. Press the remote ON/OFF switch to turn the inverter off. If the

remote is not used, press and release the inverter’s ON/OFF power
switch to turn the inverter off. The inverter’s status indicator and
the connected load should go off.

8. Apply AC power to the inverter’s AC input. After the AC input

power is qualifi ed (approximately 15 seconds), the incoming AC
power will transfer through the inverter to the inverter’s AC out-
put and power the connected light bulb. Verify that the inverter’s
status indicator and the connected light bulb come on.

9. Even though the connected light bulb is on, the inverter is cur-

rently disabled/off. Press the remote’s ON/OFF switch (or press
and release the ON/OFF power switch on the inverter) to enable/
turn on the inverter.

10. Disconnect the incoming AC power to the inverter. Verify the light

bulb remains on, but now is powered by the inverter.

If the inverter passes all the steps, the inverter is ready for use. If the
inverter fails any of the steps, refer to the Troubleshooting section.

Installation