Vertiv Liebert Mini-Mate2 - Alarms; General Alarm Information and Troubleshooting

10 ALARMS
The microprocessor control system will audibly and visually signal all ENABLED Alarms (including two (2)
custom alarms). These special alarms can be chosen from the optional alarm list and/or can have their
own fully custom text. The custom alarm inputs are contact closures wired from terminal TB1-1 through a
normally open contact to either TB1-2 (alarm 1) or TB1-3 (alarm 2). The alarms can be enabled or disabled
(refer to Microprocessor Control on page55) and a time delay of 0-255 seconds can be set. The alarms
can also be programmed to either sound the alarm & activate the common alarm relay OR to sound the
alarm only.
When a new alarm occurs, it is displayed on the screen and the audible alarm is activated. (If
communicating with a Liebert Site Product, the alarm is also transmitted.) The message “PRESS ALARM
SILENCE” will prompt the operator to silence the alarm. After the alarm is silenced, the display will return
to the Normal Status Display. Alarms can be reviewed by selecting the “ACTIVE ALARMS” feature. The
alarms can also be silenced through communications with a Liebert Site Product unit.
Many alarms will reset automatically when the alarm condition is no longer represented and only after it
has been acknowledged by being “Silenced.” The exceptions are:
1. software alarms, i.e., Loss of Power and Short Cycle alarms will reset automatically 30 seconds
after being silenced or acknowledged
2. specific alarms monitoring overload or high pressure switches may require a manual reset
depending upon the model
10.1 Alarms: Definitions and Troubleshooting
The following list provides a definition and troubleshooting suggestions for each type of alarm. Refer to
Troubleshooting on page87 for additional details. If you need further assistance, contact your Liebert
supplier. THE CUSTOMER MUST SPECIFY ALARM(S) AT THE TIME OF ORDER. OTHER DEVICES AND
WIRING MAY BE REQUIRED AT THE FACTORY FOR SOME OF THE ALARMS.
10.1.1 Custom Alarms
Custom alarm(s) messages are programmed at the LCD display. The message displayed may be included
in a list of provided alarms or it may be customized text (for up to 2 alarms). IF CUSTOMIZED TEXT IS
USED, MAINTENANCE PERSONNEL SHOULD BE INFORMED OF THE ALARM FUNCTION AND THE
REQUIRED ACTION.
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