Troubleshooting
56
Installation and Owner’s Manual for Generac PWRCell Inverter
Overload Behavior
Table 9-2. Overload Behavior
Island Overload Event
Cause
Behavior
Solution
Overload on Voltage
(vulnerable when battery has
low SoC)
Motor load has demanded
additional current for starting
causing voltage to drop
below allowable threshold.
– If inverter output voltage
drops below 114 V, inverter
will attempt to shed any
loads connected to SMMs
by dropping frequency.
– If the inverter drops below
96 V for more than 6 sec
(loads will brown out during
this time), the system will
blackout all loads.
– Turn OFF motor loads
– Reduce house loads as
necessary
Overload on Current
(most vulnerable to this
condition when system does
not have an external ATS)
Cumulatively, there is too
much load on the inverter
system.
– If inverter experiences
current greater than 35
amps L-N, the inverter will
prevent transfer back to the
grid and system will stay
islanded.
– If inverter experiences
current greater than 35
amps for more than 15
seconds it will blackout and
attempt to power loads at an
increasing interval between
attempts, starting at 20 sec
up to a maximum of one
hour.
– Reduce house load
Summary of Contents for PWRcell X11402
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