Magnum Energy ME-MR Series Owner's Manual page 25

5.3.2 Charger Mode Messages
When AC power (utility or generator) is connected to the inverter/charger, it
begins to monitor the AC input for acceptable voltage. Once the AC input is
accepted, the AC transfer relay (inside the inverter) closes and charger mode
begins. There are several charger mode messages; view the top line of the
LCD display and the corresponding message in this section to determine and
understand the particular charger mode.
Info: The AC input becomes acceptable after a minimum 10 sec-
ond delay and when the voltage is greater than the SETUP: 06 VAC
Dropout setting.
Charge appears on LCD; FAULT
(red) LED is off and INV (green) LED
could be on or off.
Figure 5-5, Charging Mode
• Charge – Once the charger mode has been enabled, the unit will wait
and display "Charge" to determine the charge routine. If the DC voltage is
low (≤12.8 VDC / 12-volt models, ≤25.6 VDC / 24-volt models, or ≤51.2
VDC / 48-volt models), the charger will initiate "Bulk Charging". If the DC
voltage is higher than this voltage, the charger will skip the Bulk and Absorb
charging stages and go directly to Float Charging.
Bulk appears on LCD; FAULT (red)
LED is off; INV (green) LED could be
on or off.
Figure 5-6, Bulk Charging Mode
• Bulk Charging – The battery charger is delivering maximum current
(determined by the SETUP: 05 Charge Rate setting) to the batteries. The
charger will remain in bulk charge until the absorb voltage (determined by
the SETUP: 04 Battery Type setting) is reached.
Absorb appears on LCD; FAULT (red)
LED is off and INV (green) LED could
be on or off.
Figure 5-7, Absorb Charging Mode
• Absorb Charging - The absorb stage is the constant voltage stage
and begins when the absorb voltage is reached (determined by the SETUP:
04 Battery Type setting) while bulk charging. During this stage, the DC
charging current decreases as the battery becomes charged. This charge
stage continues until the Absorb Charging time (determined by the SETUP:
03 Battery AmpHrs setting) is fi nished.
©2009 Magnum Energy Inc.
Operation
C h a rg e
1 2 .6 V
B u lk
1 3 .6 V
A b so rb
1 4 .7 V
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