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AUX modes in order of appearance on the MX60 display:
• Manual
• Vent Fan
• PV Trigger
• Float
• Error Alarm
• Diversion
• Low Battery Disconnect
• Remote
The most commonly used AUX modes:
• Vent Fan
• Diversion
• Low Battery Disconnect
When an AUX MODE is ON, 12 VDC is available at the AUX terminals and a condition, such as a voltage
set point, is met. Other modes can be programmed in lieu of the speci c ones listed here, but the Vent
Fan mode is most easily changed (e.g., to activate an alarm instead of a fan). Here are the default AUX
modes:
• Manual—pressing either the < ON> or <OFF> soft key manually activates or deactivates AUX.
• Vent Fan— when the Vent Fan voltage set point is exceeded, the vent fan will run for at least 15
seconds (the fan helps remove hydrogen from battery enclosure), even if the set point is exceeded
for only a few seconds due to a surge. If the set point is exceeded for longer than 15 seconds, the fan
will stay on until the voltage drops below the set point. It then takes 15 seconds before the fan shuts
o . This is an external fan and not to be confused with the MX60’s internal, thermally activated fan
which cools the unit.
• PV Trigger—activates an alarm or relay (that disconnects the array); when the PV input is too high
and exceeds the user-determined voltage set point (should not go over 150 VDC), the PV Trigger
disconnects after a minimal adjustable amount of Hold Time.
• Float—powers a load if the MX60 is producing power in the Float stage.
• Error Alarm—useful for monitoring remote sites, switches to the O state if the MX60 has not
charged the batteries for 26 hours or more (not an audible alarm, only displayed as a printed
message on MX60 AUX Menu).
• Diversion—diverts excess power away from batteries when a wind or hydro generator is connected
directly to the batteries.
• Low Batt Disconnect—activates/deactivates the AUX load(s) when a user-determined voltage and
time levels are reached.
• Remote—allows OutBack MATE to control the operation of the AUX MODE (see MATE manual for
details).