6.2.1
The LCD Control Menu
The control menu (Table B) lets you operate the Alpha FXM or program it to suit your operating conditions.
Procedure
1. From the Logo screen go to the Control menu.
2. Press the
SELECT
button to enter the submenu (Table B).
3. Press the
SCROLL
button to move between items in the submenu.
4. When you have reached the item, you want to change, press the
SELECT
button. The item chosen is
blinking.
5. To toggle between the choices, press the
SCROLL
button. Stop when you reach the choice you want.
6. To make the change, press the
SELECT
button. The blinking stops.
Table B — Control Menu
LCD display
Meaning
Description
INVERTER
Inverter
(Enabled/
Disabled)
When
Disable
is selected and AC is lost, the FXM will be in Standby mode.
The
inverter cannot be started through the Inverter On/Off menu.
When
Enable
is selected and AC is lost, the FXM will be in Inverter mode.
Turning
inverter on/off manually will work.
INVERTER
Inverter (On/
Off)
When inverter mode is set to ON, the Alpha FXM provides backup battery
power to the load. This mode of operation is normally activated
automatically when line power becomes unavailable, or the line power is
not qualified. You can also put the Alpha FXM into this mode during initial
start-up in the absence of line power or because of unqualified line power.
LVD
DSCNNCT
Battery voltage value at which the LVD configured relay should open
LVD
CONNECT
Battery voltage value at which the LVD configured relay should close
BYPASS
Inverter
Bypass
This function can only be switched on when the Alpha FXM is in Line mode.
When switched on, it locks the Alpha FXM into the Line mode, switches off
the battery charger and makes the output voltage equal to the input
voltage.
Used when:
Replacing the batteries.
OR:
To allow the use of a break-before-make manual bypass switch so the
Alpha FXM can be shut off for maintenance or replacement without
interrupting power to the load.
BATT TEST
Battery Test
Available when
CHARGER
on the Control Menu is set to
Standard
method.
Starts the battery test, which uses depth-of-discharge setting, the battery
capacity, Peukert number, and open-circuit voltage. This setting can be
adjusted using
BT TS DOD
menu. A battery test is also performed during
the self test.
BT TS DOD
Battery Test
Depth-of-
Discharge
Available when
CHARGER
on the Control Menu is set to
Standard
method.
Sets the desired battery test depth-of-discharge to a value between 0 and
100%. Make sure that the set time duration is shorter than the max back up
time of your battery bank. Otherwise, you will drain the battery and trigger a
fault – Batt Volt Low. The default value is set to 20% DoD.
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