Magnum Energy ME-ARTR, Руководство пользователя

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Setup
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2017 Sensata Technologies
• 02G Inverter Threshold to Start Parallel (or, the “parallel threshold”): This setting
is used for inverters in a parallel-stacked inverter system, and determines when the slave
inverters turn on as a result of the percentage of power being provided by the master inverter
Default setting: 60%
Range: OFF, 30%-90% (10% increments)
Info: Ensure the parallel threshold setting is not too high or the master inverter may
reach its full output capacity and overload before the slave inverters can turn on and
assist in powering the loads.
Info: The 02G Inverter Threshold to Start Parallel feature only works with the parallel
stacking inverter models (i.e., MS-PAE and MS-PE Series).
Info: When this setting is reached, all connected slave inverters turn on at the same
time to deliver maximum power to the loads. After running approximately 30 seconds
to stabilize the AC current, the slave inverter(s) that are not needed shut down and the
units that are still inverting share the AC current equally.
Example: There are 3 MS4024PAE units in parallel (Master, Slave 1, and Slave 2) with a total
capacity of 12kW—the parallel threshold default is set to 60%. The master inverter is running a
2000W load, which is below the 60% threshold (4000W x .6 = 2400W). A 1000W load is added
for a total system load of 3000W, exceeding the parallel threshold setting of 2400W. Slave 1
and Slave 2 inverters turn on, delivering up to 12,000W total power. Within approximately 30
seconds, the system shuts down Slave 2, and the Master and Slave 1 each run 1500W (sharing
the 3000W load equally between them). Now, if the 1000W load is turned off (reducing the
total system load to 2000W again), Slave 1 turns off and only the Master inverter is running the
2000W load.
Should I use the Parallel Threshold feature? Depends on the application. Most applications
set a threshold level such that the connected slave inverters come on only when required to
power the loads. This reduces the power drain on the batteries because the slave inverters that
are not actively powering the loads are in standby. On the other hand, if you have a load larger
than the capacity of the master inverter and the startup current is needed very quickly, you may
need to turn the threshold setting to OFF . This ensures all the stacked inverters are always on to
meet the fast startup current requirements of this large load.
Where should I set the Parallel Threshold? Depends on typical AC loads and how much time
you want the master inverter to run (versus the slaves). If you want the master inverter to run
as much of the loads as possible before the slave(s) turn on, then set the threshold at a higher
setting. If you want the slave(s) to share more of the load, then set threshold to a lower setting.
Example: Loads are typically under 4000W and you have a 3-inverter parallel system. You want
the Master to run loads up to 3000W before the slave inverters turn on. Set the parallel threshold
to 75% (4000W x .75 = 3000W). The Master inverter now runs any load up to 3000W before the
slave inverters turn on. In this case, if a 5000W load was turned on, the slave inverters would
turn on, and then Slave 2 would turn off, and the Master and Slave 1 would each run at 2500W.