10
Although high efficiency is standard, the default operation is in on-line mode. Bypass can be
activated in the LCD panel, though on-line can be run permanently if preferred.
Free Run Mode
The UPS operates in free run mode when input frequency is outside of the selected input frequency
range. Free run mode is when output frequency does not match input frequency. When starting the
UPS, the frequency regulation detected is 50 or 60 Hz ±0.25Hz. Please refer to chapter 7.2 if you
want bypass available while running in free run mode.
Diagnostic tests
When you start the UPS, a diagnostic test is automatically executed that checks electronics, battery,
and reports any problems on the LCD display.
An advanced battery management system always monitors the conditions of the batteries sends any
forewarnings if replacement is needed. Otherwise every 30 days of normal mode operation, a battery
discharge test is performed and any problems reported on the LCD display.
Except during the first 24 hours after startup while the UPS is in charging mode (please see chapter
7.2), diagnostic tests can be performed manually from the front panel at any time.
2.2 System Configuration
The UPS device and the internal backup battery make up the system. Depending on the site and load
requirements of the installation, certain additional options are available as a tailored solution.
Planning a UPS system, the following should be taken into consideration:
●
The total demand of the protected system shall dictate the output power rating (VA). Allow a
margin for future expansion or calculation inaccuracies from measuring power requirements.
●
Backup time needed will indicate the battery size needed. If load is less than the UPS nominal
power rating then actual backup time is longer.
●
The following options are available:
●
External Battery Cabinets
●
Transformer cabinets
●
Maintenance bypass switches
●
Connectivity options (relay card, SNMP/WEB card)
