Configuration Of Special Functions; Battery Test - LEGRAND WHAD 3 100 96 Manuel D'installation

6 Configuration of special functions

1. neutral sensor: The neutral sensor is able to inhibit the operation of the UPS should the
neutral potential move excessively away from that of earth.
2. Autorestart: This function enables the automatic restarting of the UPS when mains power
returns after the operation of the UPS was blocked due to the end of battery autonomy.
3. Dip speed: This function is included for use with loads that make brief and repeated peaks of
consumption (for example laser printers). When it is enabled, the intervention of the bypass
is delayed for 10 ms which allows the UPS to overcome shorter peaks without it intervening.
4. extended Pll lock range: This enables the increase of the range of mains frequencies from
+/- 1Hz to +/-10Hz.
5. enable load waiting mode: The UPS can be set to operate in 'load waiting mode' (LWM). This
type of operation enables the automatic switching on and off of the UPS according to whether
the connected load is switched on or off.
6. 60 hz operation: The UPS can be set to operate with 60 Hz mains voltage.
For further details of these and other, less important functions, please refer to the in line Help
function supplied with the diagnostics software.

7 Battery test

The battery test can be done during UPS operation on mains power as follows:
1. Automatically: after programming by means of the optional shutdown software
2. Every time the UPS is switched on by means of the software.
The test is done with the UPS operating on mains power (that is without forcing the operation of
the UPS onto battery power) thanks to a particular LEGRAND® patented circuit: therefore even if
the battery test gives a negative result, there will be no interruption of the output power.
Whad 2, 2.5 kVA
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