Filter
Top Products
69
Low Light / Snoozing During the initial sweep (see Wakeup and Sweeping), if it is determined to
be too late (or too early) in the day, the MX60 will display Low Light for a few seconds and then
display Snoozing for 5 minutes (default). This reduces energy usage and unnecessary powering
of the MX60. This message is also displayed in extremely cloudy weather. The Snoozing mode
can be disabled and has two basic modes to choose from: one based on the speed of the PV to
charge the input capacitors and the second looks at the initial wakeup sweep current to see if it
reached the Low cuto (default) current set point.
MX 2 Hot (Very rare) Either the MX60 is too hot or its internal temperature sensor is shorted. If
this message appears, carefully check if the MX60’s heat sink is extremely hot. The heat generated by
the MX60, and therefore its losses, is proportional to input voltage times output current. Avoid install-
ing the MX60 in direct sunlight to help control its operating temperature.
New Voc The MX60 is acquiring a new open circuit panel voltage (Voc) periodically in the UPick MPPT
mode or it found a new Voc during an initial sweep.
Re-Cal There are certain abnormal conditions that can confuse the current measuring method in the
MX60. When and if one happens, the MX60 will temporarily stop and re-calibrate. This may happen
because of negative current, i.e., current coming out of the input terminals instead of into the input
terminals, or a tripped PV breaker. A new Voc is also acquired during a Re-Cal.
Sleeping The PV voltage is two volts less than the battery voltage. This may also appear during the day
when the MX60 is transitioning between certain states, or due to other conditions.
Sweeping In Auto-Sweep MPPT mode, the MX60 is either (1) doing an initial sweep of the panel volt-
age from Voc towards battery voltage after wakeup, (2) doing a periodic mini-sweep to stay within its
acquired Maximum Power Point voltage, or (3) sweeping to maintain the current limit. Below 5 amps
of battery output current, “Sweeping” brie y ashes on the display as the MX60 operates at the Park
Mpp voltage.
SysError (Very rare) System Error indicates an internal non-volatile memory error. The unit will stop
operating when this message is displayed. Call the factory if you see this message.
Unloaded The battery terminals abruptly unload. Unloaded is displayed if the battery breaker trips
while MPPTing or the battery voltage is set too low.