Outback Power Systems MX60 user manual OutBack Power Systems Inc

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 cutoff (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 installing 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 voltage 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” briefl y fl 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.

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