User`s manual

MPS Doc: M359_USER_MANUAL REV J Oct 23, 2014 Page 16 of 30

(external or internal to the M359) the OUTPUT FAIL red LED will be on. When in the

By-Pass mode, all LED’s are off.

5.5.3. ON BATT Warning LED (16)

When the M359 is operating in the UPS Mode and the AC Input fails, the UPS will use

the Battery power as its primary source. In this state, the ON BATT Warning yellow LED

(16) will start blinking, warning the user that the UPS is working on Battery power.

5.5.4. LOW BATT Warning LED (14)

When the M359 is operating in the UPS mode, and the Battery Charge level drops

below 35%, the yellow LOW BATT Warning LED (14) will start blinking, warning the user

that the Battery Level is low.

5.5.5. O. LOAD Shutdown LED (22).

If the UPS overload protection has been tripped by an overload (and the UPS has

shutdown), the red O. LOAD Shutdown LED (22) will turn on, indicating to the user that

the UPS has shutdown due to overloading.

5.5.6. O.TEMP Warning LED (23)

In case of an Over temperature of the UPS (hot spot temperature exceeding +94

C), the

O.TEMP yellow LED (23) will start blinking.

5.5.7. O. TEMP SHUTDOWN LED (24).

Three minutes after the O. TEMP Warning LED starts blinking (and if the temperature

does not drop), the UPS will shut itself off. This condition is indicated by the O. TEMP

SHUTDOWN red LED (24).

5.5.8. BATT TEST PASS LED (27).

When Battery Test is invoked and the Battery is good, the green PASS LED (27) will be

on for 20 seconds and then will turn back off.

5.5.9. BATT TEST FAIL LED (25).

When Battery Test is invoked and the Battery is bad, the FAIL red LED (25) will turn

(and remain) on.

5.5.10. LOAD LEVEL [%] Bar-Graph (13).

A three-color bar-graph that indicates the load level (real power) in percent. 100%

indicates output power of 2,000W. The lower six bars (15% to 75%) are green, the next

three positions (80%, 110%, and 120%) are orange and the two uppermost positions

(130% and 140%) are red. The colors do not have any special significance and are only

intended to assist fast visual scanning of the load level.