Operation Modes - Easy UPS 3M Manuals

Normal Mode

The UPS provides power to the connected load from mains. The UPS converts mains to conditioned power for the connected load while recharging the batteries (float or boost charge).

LED Status

Power Flow

Battery Mode

The UPS transfers to battery mode if the mains supply fails. The UPS provides power to the connected load from the connected batteries for a finite period. When the mains supply returns, the UPS transfers back to normal mode.

LED Status

Static Bypass Mode

The UPS supplies the load with power from the bypass source. If the conditions for normal or battery mode are not met, the load will be transferred from the inverter to the bypass source with no interruption in power to the load.

LED Status

Power Flow

Maintenance Bypass Mode

In maintenance bypass mode, the mains is sent via the external MBB to the load. Battery backup is not available in maintenance bypass mode.

LED Status

Power Flow

ECO Mode

In ECO mode the UPS is configured to use static bypass mode as the preferred operation mode under predefined circumstances. The inverter is in standby in ECO mode and in case of interruption to the mains, the UPS transfers to battery mode and the load is supplied from the inverter.

NOTE: This mode is disabled by default, please contact Schneider Electric to enable this mode. If ECO mode is enabled, you cannot exit this operation mode by using the display, please also contact Schneider Electric for assistance.

LED Status

Power Flow

Autostart Mode

When autostart is enabled, the UPS automatically restarts the inverter and bypass when the mains returns. By default autostart is enabled.

NOTE: If autostart is disabled, the inverter and bypass will not restart automatically when the mains return.

Frequency Converter Mode

In frequency converter mode, the UPS presents a stable output frequency (at 50 or 60 Hz) and the static bypass switch is not available.

NOTICE
Risk of equipment damage or load drop In frequency converter mode the UPS cannot run in static bypass or maintenance bypass mode. Before turning the UPS into frequency converter mode, you must contact a Schneider Electric-certified partner to make sure the SSIB and the MBB are in the OFF (opened) position (Schneider Electric strongly recommends to lock these with a padlock available from Schneider Electric) no cables are connected to the bypass terminals Failure to follow these instructions can result in equipment damage.

NOTICE

Risk of equipment damage or load drop

In frequency converter mode the UPS cannot run in static bypass or maintenance bypass mode. Before turning the UPS into frequency converter mode, you must contact a Schneider Electric-certified partner to make sure

the SSIB and the MBB are in the OFF (opened) position (Schneider Electric strongly recommends to lock these with a padlock available from Schneider Electric)
no cables are connected to the bypass terminals

Failure to follow these instructions can result in equipment damage.