P O W E R I N G T E C H N O L O G Y
SCIMITAR 3000 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1
Page 11 scimitar3000-man-rev1-0219.indd
Note that it will be necessary to remove the two screws fixing the AC input connector in place and replace
them with the two hex nut pillars supplied with the safety cover before it can be fitted. See figure B below.
WARNING!
Connect to the utility supply only after the safety cover has
been installed.
2.4.4 Before proceeding further, carefully check that the cables you have just connected to the negative terminal
of inverter are connected to the negative DC power source.
CAUTION!
Reverse polarity connection will blow a fuse in inverter and may
permanently damage the inverter.
Damage caused by reversing polarity connection is not covered
by our warranty.
2.4.5 Set the power switch to the ON position. After a moment you will hear three beeps. At the same time, the
display scrolls the word “UNIPOWER” twice. After that, you will hear a continuous sound from internal alarm.
When the AC output voltage shows on the display the unit will have completed the start-up sequence.
2.4.6 Set the power switch to the OFF position. The unit should shut down completely.
2.4.7 To accurately measure the true output R.M.S. voltage of inverter connect to one of the outlet sockets and
then set the power switch to ON. Voltage will appear at the output sockets after the start-up sequence is
completed.
2.5 Safety Grounding
During the AC wiring installation, AC input and output ground wires are connected to the inverter. The AC input ground
wire must be connected to the incoming ground from your AC utility source.
The AC output ground wire should go to the grounding point for your loads (for example, a distribution panel of bus
chassis).
2.5.1 Neutral Grounding - 120V models only.
The neutral conductor of the AC output circuit of the Inverter is connected to the safety ground during
inverter operation. This conforms to national electrical code requirements that separately derived AC
sources (such as inverters and generators) which have their neutral conductors tied to ground in the same
way that the neutral conductor from the utility is tied to ground at the GFCI breaker panel. When AC utility
power is connected and the inverter is in bypass mode, this connection (neutral of the Inverter’s AC output
to input safety ground) is not present so that the utility neutral is only connected to ground at your breaker
panel, as required.
AC Supply
Summary of Contents for Scimitar 3000 Series
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