Vertiv Liebert EXS 0030kTH16FN01000, Руководство пользователя

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EXS
User Manual 10H52267UM60 - Rev. 1 - 09/2018
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Also, two UPS modules or parallel systems may be used to form a dual bus system. Each parallel system has an
independent output. The LBS cable or LBS device is used to synchronise the outputs, guaranteeing seamless load
transfer between the two parallel systems or individual modules via the STS device.
1.3.1 Parallel System Features
1. The hardware and software of a parallel system are identical to those of the individual modules. The parallel system is
configured by modifying the respective settings in the configuration software.
2. Parallel cables are connected in a ring, providing both system reliability and redundancy.
3. The total load of the parallel system may be queried via the LCD on each UPS.
1.3.2 Parallel System Requirements
A group of paralleled modules behave as if it were one large UPS with the advantage of providing increased reliability.
To ensure that all modules are utilised equally and to comply with relevant wiring rules, the following requirements
apply:
1. All UPS modules must be of the same series and must be connected to the same bypass source.
2. The bypass and main input source N line must be connected to the same neutral line terminal.
3. If any RCD devices are installed they must be set-up appropriately and located upstream of the common neutral line
input terminal. Alternatively, the device must monitor the protective earth current of the system. Refer to
Warning: high
earth leakage current
before
Contents
.
4. For parallel system consisting of two or more UPS modules, the (optional) bypass load sharing inductors should be
selected.
1.4 UPS States And Operating Modes
For information about the LED indicators mentioned in this section, refer to
4.1.1 LED Indicators
.
The operating modes are as follows:

Normal mode

Battery mode

Bypass mode

Maintenance bypass mode

ECO mode

Parallel redundancy mode (system expansion)

Frequency converter mode

LBS mode
Normal mode
When the mains input is within normal limits, it is processed by the rectifier and inverter in order to supply the load with
voltage and frequency-stabilized power, while the battery charger recharges the battery. This condition is known as
Normal operating mode.
In Normal mode, the run indicator (green) is on, the alarm indicator is off, and the buzzer is silenced.