Alpha
FXM 2000
120/60/N
LINE
6.1.4
Switching the Alpha FXM from Inverter mode to Line mode
The Alpha FXM remains in the Inverter mode for as long as the input circuit breaker is switched off. Backup
power is provided to the load until the batteries are drained to a preset level which triggers the Alpha FXM to shut-
down automatically. If it is not necessary to operate the Alpha FXM in the Inverter mode, switch the Alpha FXM
back to the
Line
mode as soon as possible.
Procedure
1. Switch on the input circuit breaker. The Alpha FXM qualifies the line power. The LCD displays
RETRAN
, then
shows
LINE
,
BUCK
or
BOOST
. The status LED illuminates.
If the Alpha FXM constantly switches between Inverter and Line modes because of a noisy line, broaden the input
parameter tolerances from
Normal
to
Generator
. See
Sense Type
in Table B on page 24.
6.2 Operating from the Control Panel Interface
The LCD control panel provides “at a glance” monitoring. This panel, when used along with the
CANCEL
,
SCROLL
and
SELECT
buttons, allows you to program, make measurements, and troubleshoot the Alpha FXM. The layout of
the LCD interface is shown in Figure 9.
The Alpha FXM is monitored and controlled with a series of menus and submenus.
B
A
C
CANCEL SCROLL SELECT
D
A Alpha FXM model name
Alpha FXM voltage configuration - 120 Vac or 230 Vac
B
Alpha FXM Frequency - 50 Hz or 60 Hz
Sense Type setting - Normal (N) or Generator (G); see Sense Type in Table B
C Present operating mode
- (LINE mode shown) See Figure 10.
D
Control buttons:
SELECT
- Pressing SELECT moves you down 1 level in the menu tree (Table C) or
accepts a change when
programming.
SCROLL
- Pressing SCROLL moves you through the submenus (Table C) or toggles between choices
when programming.
CANCEL
- Pressing CANCEL moves you up one level in the menu tree (Table C).
Figure 9 — LCD Control Panel Logo Screen
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