Appendix C – Using the Router with Non-stacked Inverters
©
2017 Sensata Technologies
Page 163
Appendix C – Using the Router with Non-stacked Inverters
C-1 Using Router to Control Multiple Unconnected Inverters
The router can be used to control multiple Magnum inverters—under certain conditions—that are
not connected in parallel (i.e., non-stacked). Each connected inverter must be the same model
(i.e., MS4024 and another MS4024), each inverter must be connected to the same battery bank,
and because the output of all the inverters are not in-phase with each other, the AC outputs must
be isolated from each other.
The behavior of unstacked units are as follows:
• Unstacked units that are inverting:
1. Pressing the Inverter On/Off button:
a) If all units are off, turns them all on.
b) If any unit is on and another one is off, turns them all off.
2. Units come out of Search mode (if enabled) separately, based on the load sensed by each
inverter.
• Unstacked units that are charging:
1. The lead charger unit is de
fi
ned as the unit charging and connected to the lowest port
number.
2. All non-lead charger units are forced to the Charge mode of the lead charger.
When using non-stacked units, the router applies the same inverter and charger settings to each
inverter. As long as all the inverters are in the same mode either charging or inverting, then the
inverters operate together normally. If there is an instance that some inverters connected to the
router are charging and others are inverting (such as when an input breaker has tripped), or if
the AC is connected to one unit before connecting to another unit (non-synced AC in)—then the
features listed below will not work properly.
• System meters (if some units are inverting and others are charging)
• System CHG LED (if lead unit does not have AC in and other units are connected to AC input)
• System Power LED (follows the lead inverter)
• Absorb Done Amps (when some units inverting, others are charging, and there is no BMK
installed)
•
Absorb Done Time (could get confused and go too long with non-synced AC in)
•
Max Charge to battery (when some units inverting and others are charging)
• Batteries may stay in EQ charge longer than desired (can be fooled with non-synced AC in)
•
AC In Time/Volts DC/ SOC will be inaccurate (when lead unit does not have AC in)
• Remote Monitoring (when some units inverting and others are charging)
• AGS Start on AC Amps (when some units inverting and others are charging)
• AGS
Gen Run DC Volts Stop on Float (when lead unit does not have AC in)
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