Ac Safety Grounding - Helios RM-PSW5KVA Series Instruction Manual

2-4-3 Before proceeding further, carefully check that cable you have just connected negative
terminal of inverter to the negative output power source.
2-4-4 Connect the cable from the negative terminal of the inverter to the negative
terminal of the power source. Make a secure connection.
2-4-5 Set the power switch to the ON position; you will hear the "bi-bi-bi" sound. At the same
time, the display is showed the word "ASIAN" for two times. After that, you will hear
the continuous sound from internal alarm. Then, the AC voltage shows on the display. It
means the device has done the operation.
2-4-6 Set the power switch to the OFF position; the device shut down completely.
2-4-7 Please use a power meter accurately measure the true output R.M.S. voltage of
Inverter. We use a power meter such as IDRC CP-350 or ABM 2019 to measure
our product.

2-5 AC Safety Grounding:

During the AC wiring installation, Ac input and output ground wires are connected to the
inverter. The AC input ground wire must connect 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 (GFCI' s ):
120V models: The neutral conductor of the AC output circuit of the Inverter is
automatically connected to the safety ground during inverter operation. This conforms to
national electrical code requirements that separately derived AC sources (such as inverter
and generators) 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. For models configured
with a transfer relay, while AC utility power is presenting 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.
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.
WARNING!
You may observe a spark when you make this connection since
current may flow to charge capacitors in the power inverter.
Do not make this connection in the presence of flammable
fumes. Explosion or fire may result.
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