Magnum Energy ME-RC Owner's Manual page 18

3.0 Setup
• SETUP: 0 VAC Dropout - Used to select the minimum AC voltage
that must be present on the input before the inverter/charger switches from
inverter to charger mode. For example: If this setting is set to Dropout = 60
VAC, then the AC input voltage must be above 60 Volts before the inverter
will switch from inverter mode to charge mode.
This setting also determines the minimum AC voltage threshold where the
charger disengages and the inverter (when turned on) will provide AC power
from the batteries. This protects AC loads from utility outages. For example:
If this setting is set to Dropout = 60 VAC, when the AC input voltage drops
to 60 volts, the inverter will switch from charge mode to inverter mode.
Settings are Dropout = 60 VAC to 100 VAC for 120 VAC inverters (or Dropout
= 120 VAC to 200 VAC for Export models) and Dropout = UPSmode.
Default setting: Dropout = 80 VAC (Export inverter models = 160 VAC)
SETU P
Status...
06 VAC Dropout
press
Status ...
Dropout = 60VAC
Figure 3-11, SETUP: 06 VAC Dropout Selections
Where do I set my VAC Dropout? It depends on the application and what
you are using as the AC source. The settings not only look at the incoming
voltage level to determine when to transfer, but also determines how quickly
the charger disconnects and starts inverting based of the fluctuations of the
incoming AC voltage.
• Dropout = 0 VAC to 00 VAC (For Export Inverter Models: Drop-
out = 20 VAC to 200 VAC): Use a VAC Dropout setting from 60 VAC
to 100 VAC (Export models: Dropout from 120 VAC to 200 VAC) when
the AC source may have fluctuations in RMS voltage. These settings
attempt to prevent the charger from disengaging unnecessarily due to
poor quality voltage; and are highly recommended if using a generator
for charging. The transfer time from charge mode to inverter mode is
>16 milliseconds when using these settings.
• Dropout =UPSmode: Use the 'UPSmode' setting when the AC source
is well regulated above 105 VAC (210 VAC for Export inverter models)
and the inverter loads are sensitive to voltage fluctuations. This setting
is intolerant of voltage fluctuations and will provide a quick transfer. The
transfer time from charge mode to inverter mode is ≤16 milliseconds when
using this setting. For generator charging, do not use this setting.
Info: If you get nuisance AC disconnects. Either change the setting
to 100 VAC or less (Export inverter models: 200 VAC or less) or
obtain a better voltage regulated AC source.

rotate to
press to select
Status ...
.......
Dropout = 80VAC
rotate to
desired
selection :
Status...
.......
Dropout = 95VAC
©2009 Magnum Energy Inc.
press to save
Status...
Dropout=UPSmode