56
INSTRUCTION:
The neutral conductor from the inverter to point of interconnection
(POI) is optional. The function of the neutral, when used, is to
provide a point of reference for measurement purposes that is
essentially at ground potential. The neutral conductor is for control
or measurement purposes only, and therefore may be sized
according to NEC section 705.95(B). The ground conductor (PE) is
sized to section 250.122.
Use the OT type terminal to connect the AC conductors to the AC terminal
block and connect the PE (GND) cable to the grounding terminal block.
The neutral conductor is optional. The inverter may be wired as a 3-wire or
4-wire connection, the PE ground is ALWAYS required. When terminating
the ground at the busbar a ferrule is recommended but not required. (See
the 1
st
diagram in Figure 3-) Set up the conductors referring to Figure 3-30.
Pre-insulated end ferrule
1pcs
OT type terminal,4pcs
Pre-insulated end ferrule
Core wire
OT type terminal
Core wire
Figure 3-30 AC output and internal ground conductor set up
When bonding the inverter/mount to a metallic structure is required, use
the OT type terminal to connect the ground conductor to the external
bonding point at the bottom of the wiring box. The bonding point is located
at the bottom of the wirebox as shown in Figure 3-31.
Содержание SCA Series
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