Status and Alarm LEDs Status:
Green LED solidly illuminated: the Alpha FXM is in Line mode and line power is provided to the load. Green
LED flashing: the unit is in Inverter mode and backup battery power is provided to the load.
Alarm:
Red LED solidly illuminated: fault in the Alpha FXM. (See "Table P
— Fault Submenu" on page 97.) Red LED
flashing indicates an alarm. (See "Table O
— Alarm Submenu" on page 96.)
Configurable dry contacts, C1 and C2
Contacts C1 and C2 allow the Alpha FXM to be connected to an external monitoring panel or to traffic control
equipment.
The factory default settings can be reprogrammed to meet your requirements. See "7.3.3.3 Monitoring > Re-
lay & Load Shed" on page 53 for web and Alpha UPS Monitor, and "7.5.4 Programming the Dry Contacts" on
page 82 for HyperTerminal.
C1:
The C1 contact is energized when line power is unqualified and the Alpha FXM provides backup battery
power to the load(s). Can be used to generate an “On Battery” alarm.
C2:
This contact is energized when the battery drops below a pre-set voltage level. Can be used to generate
a “Low Battery” alarm. You can change the pre-programmed level to match the batteries used and the actual
operating conditions. See "Adjusting and Controlling the Alpha FXM" on page 81: #35 Low Battery Warning
Voltage.
Replaceable fan assembly
This microprocessor-controlled fan regulates the Alpha FXM internal temperature for optimum performance.
Microprocessor-control of the fan speed increases the life of the internal electronics and the fan.
Take care that the fan is not blocked. Failure of the fan generates an alarm; the internal fan assembly is
designed so it can be replaced if it fails.
AC input circuit breaker
This circuit breaker is an on/off switch for the line power into the Alpha FXM, which also provides input
protection. It must be switched on for proper Alpha FXM operation.
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Summary of Contents for FXM 350 Series
Page 1: ...Alpha FXM Series 350 USER MANUAL...
Page 21: ...Page 20 to 106...
