MGE UPS Systems EPS 7000 Hidden Panel Lower Pushbuttons, Test connector, Clear fault log

EPS 7000 Single Module

I: Battery discharged

This orange LED indicates that the battery has reached the end of its autonomy, shutting down the inverter.

J: Inverter desynchronized

This orange LED indicates that the inverter is not synchronized with the bypass AC input (mains 2).

K: Transfer fault

This red LED indicates a transfer fault, which may be one or more of the following conditions:

◗Inverter output static switch fault

◗Static switch over-temperature

◗Static switch power supply fault

◗Transfer control board fault

◗Power supply board fault

L: Overload

This orange LED indicates an alarm condition resulting from one or more of the following conditions:

◗Inverter current above rating

◗Output current above rating

◗Inverter and/or static switch shutdown due to excessive load current

M: Bypass AC input (mains 2) outside tolerance

This orange LED indicates that the bypass AC input (mains 2) voltage and/or frequency are too high or too low.

N: Maintenance position

This orange LED indicates that circuit breakers QF1, Q4S, Q5N, or Q3BP are set to the maintenance position. The UPS is not available for load protection.

1.5.3.2Hidden Panel Lower Pushbuttons

Following are brief descriptions of the function of the hidden panel pushbuttons. See Figure 1-9.

Test connector	(port) This 9-pin connector is reserved for service. It is used to connect the cabinet
	to a computer, allowing system calibration, personalization, and computer-aided
	diagnostics.
Clear fault log	Pressing this pushbutton clears the alarms stored in memory, allowing the unit to
	restart. Memorized alarms cannot be cleared until the condition causing the alarm
	has been corrected.
Audible alarm reset	Pressing this pushbutton stops the audible alarm. Should a new fault condition at a
	higher alarm level occur, the alarm will sound again.
Battery charge cycle	(pushbutton #1) Pressing this pushbutton begins a battery charging cycle. After the
	cycle is complete, the rectifier/battery charger returns to float charge levels on the
	battery. The battery charge cycle is not applicable to sealed lead-acid battery instal-
	lations.

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