PowerWalker VFI 1000T LCD - Manual (Page 19)

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5.7 Audible alarm mute function:
If the alarm is too annoying in battery mode, you may press “I” button
continuously for more than 1 second to clear it. Moreover, the alarm
will be enabled when the battery is low to remind you to shutdown the
load soon.
If the alarm is too annoying in bypass mode, you may press “ “button
continuously for more than 1 second to clear it. The action doesn’t
affect the warning and fault alarm.
5.8 Operation procedure of external battery for long backup
time model (“L” model)
(1) Use the battery pack with voltage: 36VDC for PowerWalker VFI
1000T LCD L (3 pcs of 12V batteries), 96VDC for PowerWalker
VFI 2000T LCD L/ PowerWalker VFI 3000T LCD L (8 pcs of 12V
batteries). Connection of batteries more than or less than
required will cause abnormality or permanent damage.
(2) One hard wiring type battery terminal on the rear panel is used for
connecting the battery pack.
(3) The battery connection procedure is very important. Any
incompliance may result in the risk of electric shock. Therefore,
the following steps must be strictly complied with.
(4) Make sure the mains input is cut off, if there is a battery breaker
then turn it off first.
(5) Remove the small cover of terminal block, prepare the battery
cable which should be able to carry the current of >30A for 1000T
L, >22A for 2000T L, >33A for 3000T L, the cross section area
should be great than 4 mm
2
for all model. And battery wire color is
recommended as following:
＋ ＋ ＋ ＋
GND
－ － － －
Red wire Green/Yellow wire Black wire