SureSine inverters cannot have their AC outputs paralleled with other inverters. The two SureSines would not be able to phase align their AC output waveforms, resulting in a very messy AC signal damaging to AC equipment or damage/malfunctioning of the SureSine inverters.

Traditional PWM vs Morningstar’s TrakStar™ MPPT Technology

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TriStar MPPT Processor A Firmware Update

v32b Firmware and above addresses EEprom access bugfix causing watchdog trip and subsequent lowside FET turn on.  This issue is generally limited to Controllers installed in applications utilizing all, or most, of the following items in the design.  -High I/O of Communications, -Read/Write of vb_ref register (0x0033), -Read/Write of ib_ref register (0x0058), -Write of battery current limit (0xE01D), -Coil command restart of controller, -48V Systems, -Oversized Arrays.  The following link provides instructions on updating firmware:   https://www.youtube.com/watch?v=J6Duwr5Tl-w&t=10s

 

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