Alpha Novus FXM 1100 Operator's Manual download pdf (Page 38)

Switching the FXM from Line mode to Inverter mode

You can also force the FXM to operate in the inverter mode by manu-

ally turning off the input circuit breaker. Doing so will effectively dis-

connect any line power to the FXM, simulating a power outage which

triggers the FXM to swtich to the inverter mode of operation.

Procedure

Turn off the input circuit breaker. The LCD shows 1. INVERTER,

the status LED starts ﬂashing to show the FXM is running on

backup battery power. Conﬁrm that the load is receiving power.

Switching the FXM from Inverter mode to Line mode

The FXM remains in inverter mode for as long as the input circuit

breaker is turned off. Backup power is provided to the load until

the batteries are drained to a preset level which triggers the FXM

to shutdown automatically. If it is not necessary to operate the FXM

in inverter mode, you should switch the FXM back to Line mode as

soon as possible.

Procedure

Turn on the input circuit breaker. The FXM qualiﬁes the line 1.

power. The LCD displays RETRAN, then shows LINE, BUCK or

BOOST. The status LED turns on.

Note

If the FXM constantly switches between Inverter and Line modes due

to a noisy line, the FXM’s input parameters should be broadened

from normal to generator (See “Operating the Novus FXM, Sense

Type.” on page 40. Also See Speciﬁcations, “Boost/Buck/Line

Transfer Thresholds” on page 89).

In generator mode, the range of acceptable input frequency and volt-

age is expanded to accept the ﬂuctuations created by a generator.

FXM UPS Operator's Manual

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Alpha Novus FXM 1100 Operator's Manual Page 38