Kohler PW 9000DPA, Руководство пользователя

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UPS306-01-00 PowerWAVE 9000 DPA User Manual Dated 01-06-2010
4-7
4: Operation
4.4 Operating Modes
4.4.1 On-Line (Inverter) mode
When the UPS is operating in the On-Line mode the load is supplied through the
LINE 1
(RECTIFIER) and
INVERTER
. This mode provides the highest degree of protection, especially in the event of a mains
disturbance or failure, and is always recommended if the critical loads (computer systems) will not tolerate
any (even very brief) interruption of the supply.
In the unlikely event of an inverter fault or overload condition the UPS will transfer the load automatically, and
without interruption, to the static bypass supply (transfer time = 0).
4.4.2 OFF-Line (also known as ECO or Bypass) mode
In the Off-Line (ECO/Bypass) mode the load is supplied from the bypass mains (
LINE 2
) and the static
BYPASS
. In the event of a mains failure the load is automatically transferred to the inverter within 3 to 5 msec
– this is valid for single and parallel module systems. The battery charger remains active in this mode.
Although this mode of operation offers greater efficiency than the On-Line mode, it is recommended only if
the load can tolerate interruptions of 3 to 5 ms – which is the transfer time taken to change from Bypass mode
to On-Line mode.
WARNING: The On-Line mode must always be used to provide maximum load protection.
LINE 1
LINE 2 BY PASS
INVERTER
BATTERY
LOAD
LED Colour
LINE 1 Green
LINE 2 Green
BY PASS OFF
INVERTER Green
BATTERY Green
LINE 1
LINE 2 BY PASS
INVERTER
BATTERY
LOAD
LED Colour
LINE 1 Green
LINE 2 Green
BY PASS Green
INVERTER OFF
BATTERY Green