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APEX615n Installation Guide
Line Fuses
Line fuses need to be added to protect the transformer and associated wiring. If the live wire
cannot be readily identified, fuse both phase conductors. The value of fuse required is given by:
(1.5 x VA)/(supply volts) [amps]
Fuse types should be anti-surge HBC.
WARNING
Safety Ground (Earth Ground) should never be fused.
Connecting the Protective Conductor Terminal to Earth
You must provide a connection from the APEX615n Controller/Drive's protective conductor
terminal to the protective earth conductor of the mains. This connection is in addition to the
protective earth connection provided through the APEX615n Controller/Drive's mains
connector.
The protective conductor terminal is marked with a label on the product bearing the following
symbol:
Protective Conductor Terminal Marking
To connect the protective conductor terminal to earth, complete these steps:
1 Use a spade lug in combination with a star washer to make good contact with the bare
metal surface of the APEX615n Controller/Drive.
2 Use a green and yellow wire to reliably earth the protective conductor terminal. Wire
gauge must be no thinner than the current-carrying wire in the product's mains supply.
3 Resistance between the protective conductor terminal and earth must be no greater than
0.1 W. Use thicker gauge wire if the resistance is too high.
Providing a Protective Earth Connection for Motors
You must provide a connection from the APEX motor to a reliable earth system. This
connection provides a protective earth for the motor, and is in addition to the earth connection
provided by the earth wire in the motor's power cable. The motor's protective earth connection
is important for safety reasons, and must not be omitted.
Make connections according to the following instructions and diagram:
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