Frequently Asked Question

My DIY Inverter shuts down when a heavy load tries to start...
Last Updated 8 months ago

PARM[15] is rock-bottom Battery voltage to shut off the Inverter. If the surge load immediately hits this then either the surge is too great OR the battery wires are too small OR the battery is too small OR the battery is BAD.

PARM[12] can be moved lower BUT not less than PARM[15]. This is surge low voltage cut-off AFTER a DELAY.

PARM[13] sets the surge delay.

These are over-ruled by PARM[15] so if the timer is still active and PARM[15] is hit, Inverter goes off.

Usually because of one of the above issues...

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