Installation Manual

© 2013 Magnum Energy, Inc.Page 46
Operation
Figure 3-2, MMPxxx-30D Bypass Switch Operation
OFF
OFF OFF OFF OFF
OFF OFF OFFOFF
OFF OFF OFF OFF
OFF OFF OFFOFF
OFFOFF OFFOF F
OFFOFFOF FOFF
OFF
MAGNUM
INVERTER
MAIN PANEL
SUB-PANEL
BYPASS
SWITCH
OFF
OFF OFF OFF OFF
OFF OFF OFFOFF
OFF OFF OFF OFF
OFF OFF OFFOFF
OFFOFF OFFOF F
OFFOFFOF FOFF
OFF
MAGNUM
INVERTER
MAIN PANEL
SUB-PANEL
BYPASS
SWITCH
OFF
OFF OFF OFF OFF
OFF OFF OFFOFF
OFF OFF OFF OFF
OFF OFF OFFOFF
OFFOFF OFFOF F
OFFOFFOF FOFF
OFF
MAGNUM
INVERTER
MAIN PANEL
SUB-PANEL
BYPASS
SWITCH
INV BYPASS
= ON
INV OUTPUT
= OFF
INV INPUT
= ON
INV BYPASS
= OFF
INV OUTPUT
= ON
INV INPUT
= ON
INV BYPASS
= OFF
INV OUTPUT
= OFF
INV INPUT
= ON
Inverter Bypass Operation
With the AC breakers in this position, power passes
directly to the loads in the sub-panel, bypassing the
inverter. When the Inverter Input breaker is ON,
the batteries will continue to be charged. If inverter
maintenance or service is required, the Inverter Input
breaker must be turned OFF. If AC power from the main
panel fails while the AC breakers are in this position, the
loads in the sub-panel will not be powered.
AC OFF Operation
With the AC breakers in this position, power
from both the main panel and inverter are
removed from the sub-panel. This allows
the loads in the sub-panel or any installed
equipment beyond the MMP enclosure to be
serviced. To service the inverter, the Inv Input
breaker must also be turned OFF.
Normal Operation
With the AC breakers in this position, power
passes through the inverter to the connected
loads. If an AC line failure occurs, the inverter
will use DC power from the batteries to
maintain the loads in the sub-panel.