3.2 Turning the UPS On and Off. Alpha Novus FXM 650

Operation

3.2 Turning the UPS On and Off

If the UPS constantly switches between Inverter and Line modes due to a noisy line, the

UPS’s input parameters should be broadened from normal to generator (See Section

3.4, “Operating the UPS, Sense Type.” Also See Specifications, “Boost/Buck/Line

Transfer Thresholds”).

In generator mode, the range of acceptable input frequency and voltage is expanded to accept the fluctuations created by a generator .

3.2.1 Turn On

This procedure assumes the line is qualified and the batteries are fully charged. If the UPS does not act as described, do troubleshooting as described in Section 3.6, “Troubleshooting.”

If this is the first turn on after the UPS’s installation or maintenance, do steps 3 and 4, or do a battery test (See Section 3.4 “Operating the UPS, Battery Test”) to confirm the wiring is correct, that the batteries are charged and that the UPS functions correctly.

Before starting, make sure the UPS’s battery and input circuit breakers are off.

Procedure

1. Turn on the battery circuit breaker.

The LCD displays STANDBY and the fan turns on for about a minute.

2. Turn on the input circuit breaker.

The FXM series has autofrequency sensing. When it is first turned on, it senses the line frequency and adjusts its output frequency to match (Also

See Specifications).

The LCD displays RETRAN, then shows

LINE, or BUCK or BOOST. The status

LED turns on.

If there is no line power, the UPS will go to Line mode when the line is qualified.

If you need to provide backup battery power to the load, do a manual start by using the inverter command (See Section

3.4 “Operating the UPS, Inverter”).

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FXM UPS Operator's Manual

3. Turn off the input circuit breaker.

The LCD shows INVERTER, the status

LED starts flashing to show the UPS is running on backup battery power. Make sure the load(s) are receiving power.

4. Turn on the input circuit breaker.

The LCD displays RETRAN, then shows

LINE, or BUCK or BOOST. The status

LED turns on.

Turn On Finished

3.2.2 Turn Off

1. Turn off the input circuit breaker.

2. Turn off the battery circuit breaker.

The status LED is off and the LCD panel is blank.

Turn Off Finished

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