Converter Mode; Abnormal Mode - AccuLine CNQplus 1000RT User Manual

normal range, the power used by the loads is supplied from the utility power
via internal filter, so that high efficiency can be achieved. Once the mains is
lost or abnormal, the UPS will transfer to battery mode and the load will be
continuously supplied by the batteries.
1) It can be enabled through the LCD setting or the software (Winpower).
2) Please mind that that the transfer time of UPS output from ECO mode to
battery mode is less than 10ms. But it is still too long for some sensitive
loads.

6.7 Converter mode

During converter mode, the mode string will be CVCF on the LCD display.
The UPS will operate with fixed output frequency (50Hz or 60Hz) in converter
mode. Once the mains is lost or abnormal, the UPS will transfer to battery
mode and the load will be continuously supplied by the batteries.
1) It could be enabled through the LCD setting or the software (Winpower).
2) The load should be derated to 70% of the UPS nominal power in converter
mode.

6.8 Abnormal mode

In abnormal mode such as Bus fault etc., the corresponding fault string will be
shown to indicate the operating mode of the UPS and the background light will
become red. For example SHOR will be shown when there is a short-circuit
at the load or the UPS output. The LCD display is shown in the following
diagram.
Abnormal mode
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