Magnum Energy ME-RTR Router - Manual (Page 39)

Page 31
©
2014 Magnum Energy, Inc.
Setup
Info: If you are supplying two AC sources (utility and generator) to the inverter’s single
input through an AC transfer switch, adjust the AC Input Amps setting to the smaller AC
circuit breaker side of the two AC sources.
Info: The AC Input Amps setting is dependent on the stability of the AC source. If
using a generator, factors such as altitude and output voltage regulation may require
a lower setting than the generator’s circuit breaker size. For best performance, lower
the AC Input Amps setting to 1/3 of the generator’s rated capacity, and then while
the generator is heavily loaded, gradually increase the setting as high as possible; but
ensure the voltage level stays above the 03B Low VAC Dropout setting.
• 03B Low VAC Dropout: Selects the minimum AC voltage that must be present on the input
before the inverter/charger connects to the AC input and switches from Inverter mode to
Standby mode. This setting also determines the lowest AC voltage that is allowed before the
charger disengages and the inverter (if enabled) resumes powering the AC loads from the
inverter’s battery power—to protect AC loads during utility outages.
Example: If the Low VAC Dropout setting is 60 VAC, then the AC input voltage must be above
60 volts before the inverter connects and switches from Inverter mode to Standby mode. Once
the AC is connected, the AC voltage must drop below 60 VAC to switch back to Inverter mode.
Settings for all models except MSH4024RE:
◊ Set Low VAC Dropout (AC1 only) – Sets at what AC voltage—from the HOT IN 1 to NEUT
IN 1 terminals—the inverter/charger will connect to or disengage from the incoming AC.
Default setting: 80 VAC (150 VAC for export models)
Range: 60-100 VAC, UPS Mode (110-190 VAC, UPS Mode for export models)
Settings for MSH4024RE models:
Info: The MSH4024RE is a dual input source inverter/charger having two independent
AC source inputs (AC1/GRID and AC2/GEN) with independent VAC dropout settings for
each input. The Set Low VAC Dropout screen only displays both the AC1 and AC2 fi elds
if the router is connected to the MSH4024RE.
◊ Set Low VAC Dropout (AC1 and AC2) – The AC1 setting determines at what AC voltage—
from the AC1 to NEUT terminals—the inverter/charger will connect to or disengage from the
incoming AC. The AC2 setting determines at what AC voltage—from the AC2 to NEUT terminals—
the inverter/charger will connect to or disengage from the incoming AC.
Default setting: AC1=80 VAC, AC2=70 VAC
Range: 60-100 VAC, UPS Mode*
* – Do not use UPS Mode as the AC2 setting if using a generator as your AC source.
MS-AE and MS-PAE Series: These models connect to a single AC source and have two inputs
(HOT IN 1 & HOT IN 2), with the current monitored on both inputs at the same time. Since the
input is from a single AC source, both of the input currents are added, then divided in half to
determine the AC Input Amps setting. If the input breaker is a dual-pole (120/240 VAC input), set
the AC Input Amps setting to the value of only one of the breaker poles (i.e., 30A dual-pole = 30A
setting). If the input breaker is a single-pole (120 VAC input) and connected to only one input, set
the AC Input Amps setting to one-half the input breaker size (i.e., 30A single-pole = 15A setting).
MS-E, MS-PE, MSH-M and RD-E Series: These models connect to a single AC source and have one
input. On these models, set the AC Input Amps setting to match the input AC circuit breaker size.
MSH-RE Series: These models can connect to two AC sources and have two inputs (AC1 & AC2),
with the current monitored on each input separately. AC1 is set to the size of the utility breaker
feeding the AC1 input, and the AC2 is set to the size of the generator’s breaker feeding the AC2 input.
MM, MM-AE and MMS Series (and any export version of these models): These models do
not monitor current on the input, therefore cannot benefi t from the AC Input Amps setting or
feature. On these models, even though the AC Input Amps setting may display and allow selection/
adjustment, this setting will not do anything to reduce the battery charger current.