Vertiv Tech EXS 0080kTK16FN01000, Руководство пользователя

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Vertiv | Liebert EXS 80kVA UPS | User Manual 62
UPS Operating Instructions
5.3.5. Transfer from Maintenance Bypass Mode to Normal Mode
Following UPS maintenance operations, the following procedures may be used to transfer the load from the
maintenance bypass to the inverter.
1. Push the baffle of maintenance bypass switch Q3 to the left to the end position, and let it stay at this
position.
2. Close the output switch Q5, main input switch Q1 and bypass input switch Q2 in turn. Confirm that the LCD
is on and the UPS runs in Bypass mode.
3. Following the LCD start-up, ensure that the system is operating in Bypass mode. Set maintenance bypass
switch Q3 to off. Return the Q3 baffle to its original position, then fasten the fixing screws.
4. Press the power button on the operator and display panel of the UPS so that the UPS transfers to Inverter
mode.
Warning
It is important to close the bypass switch before opening the maintenance bypass switch; otherwise the power supply to
the load will be interrupted.
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.
Battery test type and preconditions
1. There are two battery tests to select from:
Battery maintenance test: verifies the battery integrity and partly leads to the battery discharge (20%).
Battery capacity test: verifies precisely the battery capacity and fully leads to the battery discharge
(until battery low pre-warning alarm)
2. The tests can be carried out from the operator control and display panel of the UPS by the operator when
the following conditions are satisfied:
The load must be between 20% and 80% of rated UPS capacity and must be stable (for battery
maintenance test)
The load must be between 20% and 80% of rated UPS capacity and must be stable (for battery capacity
test)
The battery must have been float charging for 5 hours or more before battery capacity test
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