Operation: Single Ups - Integra Xmart OPTIMA T10 15K User Manual

10. OPERATION: SINGLE UPS

OPERATION MODES
ONLINE Mode (also known as NORMAL or AC mode)
If the AC input is within the configured acceptable range, and the UPS is started through the power-on procedure, it will enter the NORMAL ONLINE
mode. In this mode, the UPS powers its output from its inverter.
BATTERY Mode (INVERTER Mode)
While in NORMAL ONLINE mode, when UPS detects that the AC input has gone outside the acceptable voltage or frequency range, UPS switches to
BATTERY mode, drawing power from the batteries to supply its output. There are no transitions or micro-interruptions in the UPS output when
changing from NORMAL ONLINE mode to BATTERY mode. It can be ensured that the transition time is ZERO (0 ms). UPS can operate under this
mode while the energy stored in the batteries is consumed.
ECO Mode (Energy Saving)
This UPS offers an energy-saving function called ECO, which aims to increase the energy efficiency of the UPS by reducing losses in the inverter
stage. This mode comes disabled from the factory and must be enabled through the UPS's own configuration menu if required. It is recommended
NOT to activate ECO mode unless the advantages and disadvantages of this mode are known. In this mode, UPS powers its output with AC input
energy directly through the internal bypass line, while keeping its inverter turned off. UPS remains in ECO mode if input voltage and frequency stay
within the acceptable range configured for this mode (ECO mode range). Transition between ECO mode and either ONLINE or BATTERY modes has
a typical output dead time of 4ms.
This mode is not compatible with UPS parallel operation. If UPS operates in a parallel system, do not activate ECO mode in any of the units.
BYPASS Mode
UPS comes factory-configured with the BYPASS function enabled. This allows UPS to power its outputs directly from BYPASS input through the
internal bypass line as soon as it is energized and completes its self-diagnostics.
UPS remains in BYPASS mode until it is turned on using the standard procedure, then it enters ONLINE mode. BYPASS mode can be disabled
through the configuration menu. If BYPASS mode is disabled, the UPS will enter STAND-BY mode when required.
BYPASS mode is maintained while input voltage and frequency remain within the range configured for BYPASS mode. If UPS has BYPASS function
enabled, BYPASS mode will be activated under the following conditions:
- When UPS is energized without being turned on using the standard procedure.
- When UPS experiences an overload on its output, it will automatically switch to BYPASS to protect the inverter.
- When maintenance switch cover MBS located on the rear panel of the UPS is removed (tower models only).
- When UPS detects an internal problem, it enters BYPASS mode to keep its output powered from the input.
STANDBY Mode
When BYPASS mode is not allowed, and UPS needs to go to BYPASS, the unit will be forced to enter STANDBY mode, in which it will turn off its
outputs and keep the screen illuminated, waiting for operator action. This STANDBY mode would also be activated when energizing the UPS with
BYPASS mode disabled.
Conversion of Frequency Mode (CVCF) (not available in some models)
This UPS offers a sophisticated function that allows setting the output frequency value, even if it is different from the input frequency. For example,
a UPS operating in a 60Hz system can generate its output at 50Hz or vice versa.
This function is configured through the configuration menu available on the LCD panel. Refer to the configuration section for details.
IMPORTANT:
1.- CVCF (frequency conversion) function is incompatible with the BYPASS mode, so when frequency conversion function is activated, UPS is not
allowed to switch to BYPASS mode when bypass is required. The reason is that if a UPS is supplied with a 50Hz signal and is configured to
generate its output at 60Hz, it is implicitly being told that the only acceptable output is one supplied at 60Hz. If BYPASS mode were activated, the
50Hz input would be connected to the output, providing a frequency different from what is configured in the CVCF function. Under these
circumstances, if BYPASS mode is forced, the UPS will turn off its outputs.
2.- When the CVCF function is activated, the maximum power that the UPS can deliver decreases by 40% of its nominal maximum power. For
example, for a 20KVA UPS, the maximum output power drops to 12KVA.
WARNING Mode
Under certain abnormal circumstances, UPS displays a warning message on screen and activates an intermittent audible alarm. UPS typically
remains in online mode in the presence of alarms.
FAULT Mode
If a significant problem is detected within or outside the UPS, it enters error mode, displaying an error message on the screen and activating a
continuous audible alarm. The UPS typically switches to BYPASS mode.
www.xmart-ups.com
USER MANUAL – OPTIMA T10 15K/20K
VER.2311.09 (ENG)
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