Riello UPS CSS SENTINEL TOWER CAM 3, Installation And User Manual

Page: 29 / 40

- 27 -
FUNCTION DESCRIPTION DEFAULT
Bypass frequency tolerance
Selects the accepted range for the input frequency for
switching to the bypass and for the synchronisation of the
output
± 5% (**)
Bypass min.-max. threshold
Selects the accepted voltage range for switching to the
bypass
Low: 180 V
High: 264 V
Eco mode sensibility
Selects the intervention sensitivity during operation in ECO
mode
Normal
Eco mode
min.-max. threshold
Selects the accepted voltage range for operation in ECO
mode
Low: 200 V
High: 253 V
UPS without battery
Operating mode without batteries (for converters or voltage
stabilizers)
Operating with
Batteries
Battery low time Estimated autonomy time remaining for “battery low” warning 10 min. (**)
Automatic battery test Interval of time for the automatic battery test 40 hours (**)
Parallel common battery Common Battery for parallel CPS systems Disabled
Internal battery capacity Nominal Battery capacity for internal batteries
Change according
with UPS model
External battery capacity Nominal Battery capacity for external batteries
9 Ah for UPS without
internal batteries;
0Ah all other cases (**)
Battery recharging current Recharging current compare to battery nominal capacity 12%
*
On all CPS devices of the STW series, for “Frequency converter” mode configurations or if the synchronisation with the
bypass is disabled, the CPS will derate the output power.
(**) Compliance with standard EN 50171, the following parameters must be configured according to the indications below:
Bypass frequency tolerance

Configure to ± 2% or lower value
Energy Share off  Configure in accordance with the expected installation methods
Automatic battery test

Configure the battery test at least once a week
External battery capacity  Configure the Ah value in accordance with the battery capacity connected
Battery low time

Minimum value configurable 10 minutes