3.6 Troubleshooting the UPS. Alpha Novus FXM 650

FXM UPS Operator's Manual

3.6 Troubleshooting the UPS

When the front panel alarm LED is on or flashing, the UPS has a malfunction. The alarm and fault submenus (Figure 3.6.1) describe the malfunction. You can also use the Novus User

Software for troubleshooting (See Section 4.6, “Novus User Software”).

Procedure

1. Press the SELECT button.

CANCEL SCROLL SELECT

2. One of the conditions listed in Figure

3.6.1 is displayed on the LCD (Alarm: overload shown in this example).

3. Press the SCROLL button to see if more than one malfunction is present.

4. To clear the malfunction from the screen, press and hold the SELECT button for 5 seconds.

Troubleshooting Finished

ALARM STATUS

Alarm Submenu

LCD Shows Description

Over Load The UPS is overloaded. Remove excess loads.

Batt Temp High The battery temperature is above the specifications. Ensure that the battery fan (if used) is working.

Batt Temp Low The battery temperature is below the specifications. Use optional battery heating mats or heater.

Batt Low Warning The batteries are almost discharged. Also see Section 4.3, “Operating the UPS,” “#35: Low Battery

Warning Voltage.”

FAN Alarm The UPS’s fan has failed. Contact Alpha Technologies.

Temp Probe Unplug The temperature probe is unplugged. Plug it back into the UPS.

User Input Alarm When the user input is shorted (See Section 1.3, “User Input: S2”), this alarm appears.

In Freq Out Of Range The line frequency is outside of the UPS’s qualified range.

Weak Battery The batteries failed the self test.

Battery Test The UPS is performing battery test.

Batt Breaker Open The battery breaker is opened.

Figure 3.6.1

Alarm and Fault Submenus

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Operation

Fault Submenu

LCD Shows Description

Overload Fault The load draws more power than the UPS can provide. This can lead to an automatic UPS shutdown.

Remove excess loads.

Short Circuit The load has a short.

Intl Temp Fault The UPS’s internal temperature is too high and could cause an automatic UPS shutdown. Verify that the fan is not blocked and that it is working by performing a self test. Also See Fan Fail Alarm.

Output Over Voltage The output voltage is above or below the UPS’s specifications.

Output Voltage Low

Battery Fail The batteries have failed the self test. Inspect them to make sure they are properly connected and that they are in good condition. Make sure they are fully charged.

Backfeed A relay inside the UPS has failed. It cannot be fixed in the field. Contact Alpha Technologies customer service department.

Battery Over Voltage Battery voltage is abnornally high.

Batt Volt Low Battery voltage is low and is close to self-kill level.

Figure 3.6.1

Alarm and Fault Submenus (Continued)

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