Installation Manual

Page 22
© 2014 Magnum Energy, Inc.
Setup
• 02C AC In - Time – This feature allows you to connect to the local power utility at a prede-
termined time of day. When the current time falls within the set times, the inverter/charger
connects to the AC that is connected to the AC input terminals. Once outside the set times,
the inverter/charger disconnects from the AC source.
◊ Connect Time – Determines what time each day the inverter/charger allows the incom-
ing AC to connect and transfer the loads from the inverter’s battery power to the utility grid.
Default setting: 6:00 AM
Range: 12:00AM-11:45PM (15 min intervals)
◊ Disconnect Time – Determines what time each day the inverter/charger disconnects
from incoming AC and resumes powering the AC loads from the inverter’s battery power.
Default setting: 6:00 PM
Range: 12:00AM-11:45PM (15 min intervals)
What is the AC In - Time feature? This feature allows the incoming AC to connect to the in-
verter/charger and to charge the batteries only during the time of day as set in the 02C AC In
- Time menu item. Even if AC is present on the AC input terminals of the inverter/charger, it can
only connect during those times previously set
. The most common use of AC In - Time is when
your local utility company offers peak rate savings (or “time of day billing”). The utility company
offers the peak rate savings with a lower rate per KWH (kilo Watt hour)—usually available at night
when there is less demand on the local utility grid. The AC In - Time feature may save you money
by only connecting to the utility when rates are the least expensive.
Where should I set AC In - Time? Check with your local utility company or installer and see
if they offer lower rates at particular times of the day. If a lower rate is offered, try setting your
connect/disconnect times to coincide with the utility companies lower rates to save you money.
• 02D AC In - VDC – These settings determine when the inverter/charger automatically con-
nects and disconnects the incoming utility power (based on the inverter’s battery voltage).
◊ Connect Volts – This setting determines at what DC voltage the inverter/charger con-
nects to incoming AC and transfers the loads from the inverter battery power to the utility
grid. The transfer occurs only if the battery voltage remains below this setting for 10 seconds.
Default settings: 11.0 VDC (12v), 22.0 VDC (24v), or 44.0 VDC (48v)
Ranges: 9.0-15.9 VDC (12v), 18.0-31.8 VDC (24v), 36.0-63.6 VDC (48v)
◊ Disconnect Volts – Once the inverter has connected to the incoming AC—based on the
VDC Connect setting—this setting determines at what DC voltage the inverter/charger dis-
connects from incoming AC and resumes powering the AC loads from the inverter’s battery.
Default settings: 14.1 VDC (12v), 28.2 VDC (24v), or 56.4 VDC (48v)
Ranges: 9.1-16.0 VDC (12v), 18.2-32.0 VDC (24v), 36.4-64.0 VDC (48v)
Info: The 02D AC In - VDC (Connect and Disconnect) settings are not temperature
compensated.
Info: If you have a ME-BMK battery monitor, use the AC In - SOC feature instead.
The AC In - SOC feature takes temperature compensation into account and is a more
accurate way to identify when your battery is discharged/charged—to determine when
to transfer to/from utility power.
What is the AC In - VDC feature? This feature allows the inverter system to automatically
switch between utility connected and standalone battery operation—based on the VDC voltage
(i.e., battery) to the inverter. When using this feature, the inverter loads are powered from the
battery—which is normally charged from an energy source such as solar, wind, and/or hydro. In
the event the energy source cannot keep the battery voltage from falling, once the battery volt-
age drops to the Connect volts setting the inverter connects to the utility to continue powering
the loads connected to the inverter’s output (and to charge the battery). When the energy source
can again deliver enough power to raise the battery voltage to the Disconnect volts setting, the
inverter disconnects from the utility and again powers the inverter loads from the battery.