Vertiv EXM 0080kTK16FN01000, User Manual

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80 Chapter 5 UPS Operation Introduction
Liebert EXM 80kVA ~ 200kVA UPS User Manual
2. The parts of UPS circuits also have hazardous voltage, though the rectifier input switch, bypass input switch and
battery switch are disconnected. Therefore, the UPS maintenance is applicable to qualified personnel only.
5.3.5 Transfer From Maintenance Mode To Normal Mode
The following procedures will transfer the maintenance bypass supply mode of the UPS to the normal
mode.
1. Close the output switch Q5, external power bypass switch, bypass input switch Q2, external power main
switch and rectifier input switch Q1 in turn.
Confirm that the TOUCHSCREEN is on and the UPS runs in Bypass mode.
2. Disconnect the maintenance bypass switch Q3.
3. Start the system according to steps 4~6 in Section 5.2.1.
Now the UPS runs in Normal mode.
Warning
You must start the bypass first, and then disconnect the maintenance bypass switch; or it may cause output load
power failure.
At the moment, the load has transferred to UPS normal mode.
5.4 Battery Test Procedures
The battery test function is disabled by default. If you need this function, please contact the customer
service engineer of Vertiv.
The battery self-test includes periodical self-test and manual maintenance self-test. The battery discharge
outputs 20% energy of the total battery energy.
Periodical self-test is to test the battery activity. The periodical self-test is regular, and the self-test period
can be configured via the Vertiv setting software. During the periodical self-test, if the battery
maintenance requirement is met, the system will generate audible/visual alarm and corresponding records.
The periodical self-test does not update the battery curve table.
The mode of the manual maintenance self-test is similar to that of the periodical self-test, except for the
maintenance self-test mode is started manually, and this operation is valid only one time, that is the
system will not be automatically start up the self-test once you exit. During the maintenance self-test, if
the battery maintenance requirement is satisfied, the system will generate audible/visual alarm and
corresponding records. The maintenance self-test does not update the battery curve table.
Note: The periodical self-test should satisfy the conditions of battery float charge at least 5h, and
generator not connected, while the manual maintenance self-test just satisfies the conditions of battery
fully charged.
Achievement
1. Manual maintenance self-test: via the TOUCHSCREEN.
2. Periodical self-test: self-test period can be configured via the Vertiv setting software. The range of
battery self-test period is 30 days ~ 360 days (default: 60 days).
Self-test startup conditions
1. System load rate is within 20% ~ 100%, stable output.