Start a Runtime Calibration Test

This feature is used for calibrating the estimated remaining battery runtime. In this test, the UPS transfers to battery test operation and batteries are discharged to the low DC warning level. Based on the elapsed time and information about the load, the battery capacity can be calculated and the estimated runtime calibrated.

Schneider Electric recommends performing a runtime calibration test at start-up, when batteries are replaced, or when changes are made to the battery solution.

NOTICE

risk of equipment damage During a runtime calibration test, the batteries are reduced to a very low capacity and are therefore not capable of supporting the load in case of an input power failure. Batteries will be discharged to the low DC warning level and this will result in a short battery runtime after the calibration until the batteries are fully recharged. Repeated battery testing or calibration can affect the service life of the battery. Failure to follow these instructions can result in equipment damage.

Prerequisites:

• No battery test is running.

• No critical alarms present.

• Batteries must be 100% charged.

• The load percentage must be at least 10% and must not change more than 20% during the test. Example: If the load percentage is 30% at the start of the test, the test will abort if the load percentage drops below 24% or rises above 36% during the test.

• The bypass supply must be available.

• The operation mode must be normal operation.

• The system operation mode must be inverter.