PB
8. AUX Mode and Its Functions
The AUX is a secondary control circuit—essentially, a small power supply that provides a 12VDC (up
to 200 milliamps) output current. It is either active (12VDC on) or inactive (0VDC). Most AUX modes or
functions are designed for specialized applications and are infrequently used.
• To access the AUX MODE from the MAIN Menu, press the
< >
soft key until the arrow is in front of
the Aux selection (see next page).
• A 200 milliamps or less, 12VDC/2.4W device can be wired directly to the AUX terminal; higher output
DC loads require a 12VDC coil relay—also rated up to 200 milliamps or less for the DC coil—which
itself is connected to the AUX output. An internal, re-settable Positive Temperature Co-efficient (PTC)
fuse protects the AUX internal components from overcurrent or a short circuit.
• For certain AUX control applications the use of a solid state relay is preferred. This is particularly
beneficial with applications such as the Diversion mode where fast switching (often called PWM
control) allows a more constant battery voltage to be maintained. Both DC and AC load
switching solid state relays are widely available from many sources. Eurotherm and Power-IO
are two suggested solid state relay manufacturers.
• Only one AUX MODE can operate at a time (
even if other modes have been preset
).
• See Figure 5, page 36, for an AUX set-up wiring diagram example.
In this Menu,
On
and
Off
indicators show the present
state of the Aux terminals.
Pressing the
<MODE>
soft
key changes the outputs
value (
On
,
Off
, or
Auto)
On
indicates the Aux Output
is in an active state;
Off
indicates an inactive state.
The second line indicates the
present mode for the Aux Output.
When this line blinks, it indicates a
pending AUX Mode.
When the preferred mode is
displayed, press the
<SET>
soft
key to select it.
Pressing the
<NEXT>
soft key
changes to the next mode.
TErmS
• AUX MODE: what is displayed on the Menu
• Aux Output: 12VDC is either available or unavailable at the Aux Terminal
• Aux Terminal: the jack to which a relay is wired
AUX MODE
Night Light
Output: Off Off
EXIT NEXT SET MODE
Charger
g
Aux Light
EQ Misc
Advance
Logging Stats
EXIT
f
g
GO
This arrow indicates AUX Polarity
applies to this function allowing
the user to reverse the conditions
that activate this function.
Содержание FLEXMAX 80
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Страница 37: ...36 Figure 5 Diversion Load and AUX Wiring Set Up Illustrated...
