MATE3s Screens
900-0209-01-00 Rev A
47
Table 6 AUX Mode Functions
Mode Name
Function/Purpose
Set Points
A
UX
Polarity
Rapid
Shutdown
Function
:
The
A
UX
remains deactivated as long as the Rapid
Shutdown terminals remain closed (see pages 19
and 24). When the controller senses an open circuit
on these terminals and the PV voltage is less than 20
Vdc, the
A
UX
will activate.
Purpose
:
This mode is intended to activate a light or indicator
that announces a successful Rapid Shutdown.
None Not
Available
Float
Function
:
When the FLEXmax 100 is in the Float stage, the
output activates.
Purpose
:
This mode is intended to operate a device such as a
“battery full” indicator when the FLEXmax 100 is in
the Float stage of battery charging.
None Not
Available
Diversion:
Relay
Function
:
In Diversion mode, the
A
UX
output changes state
depending on the charger’s present stage of
operation. The voltage must exceed the charger
setting (Absorb, Float, or EQ) by the value of the
Relative
voltage. This must last for the
Delay
time for
the
A
UX
to respond.
The
A
UX
returns to its previous state when the voltage
drops below the
Relative
setting by an amount equal
to
Hysteresis
. This must last for the
Hold
time for the
A
UX
to respond.
For a wiring diagram illustrating how to connect this
function, see Figure 43 on page 49.
Purpose
:
This mode is intended to divert power from the
batteries to prevent overcharging by operating a
diversion load at the appropriate time. The
A
UX
output operates a mechanical relay that controls
the diversion load. Often used with wind or
hydroelectric sources.
Relative
voltage
Hold
time
Delay
time
Hysteresis
voltage
Active High
:
Activates when
battery voltage
exceeds the set
point. Usually
controls an auxiliary
load to divert power
away from the
batteries when
voltage is too high.
Active Low
:
Activates when
battery voltage
drops below the set
point; deactivates
when the voltage
exceeds the set
point.
