22
6. Back up test – Unplug power cord or switch off power source to
simulate power failure condition. Green LED indicator
will be off
and Amber LED "
","
will be on. Intermittent audible alarm will be
heard and LCD display shows as below figure-C:
C
4.5.1.2 Cold Start (DC start)
1. Ensure the internal batteries is available or external batteries are
connected to UPS. Press and hold
key for 3 seconds until unit
beeps twice, release button and press
for 3 seconds until twice
beeps again to confirm cold start procedure. If the 2
nd
button
confirmation must be done within 10 seconds after 1
st
two beeps, UPS
will not cold start and shut off after 10 seconds.
2. 5 seconds after cold starting, amber LED"
","
will be on,
intermittent audible alarm will be heard, and LCD will show as below
figure-D and figure-E
D
E
