TOSHIBA
2.0
Safety in Installation and Operation
2.1
Installation Safety Precautions
1)
Install in a secure and upright position within an enclosure where the ambient
temperature is between -10° C to 40° C.
2)
Allow a minimum clearance space of 4 inches (10 cm) for the top and bottom
and 2 inches (5 cm) on both sides. Make sure that proper ambient temperature
is maintained when mounting with other equipment within an enclosure.
Cubical drive (400 KVA and larger) requires 27.5 in. (700 mm) on top.
This space will insure adequate ventilation.
3)
Avoid installation in areas where vibration, heat, humidity, dust, steel particles,
or sources of electrical noise are present.
4)
Adequate working space should be provided for adjustment, inspection and
maintenance.
5)
Adequate lighting should be available for troubleshooting and maintenance.
6)
A noncombustible insulating floor or mat should be provided in the area
immediately surrounding the electrical system where maintenance is required.
7)
Use separate metal conduits for routing the input power, output power,
and control circuits.
8)
Always ground the unit to prevent electrical shock and to help reduce
electrical noise. A separate ground cable should be run inside the
conduit with the input, output, and control power cables. The metal of
the conduit is not an acceptable ground.
9)
Connect three phase power of the correct voltage to input terminals L1, L2, L3
(R, S, T) of standard 6-pulse units or connect to the input of phase shifting
transformer in 12-pulse units.
10)
Connect three phase power from output terminals T1, T2, T3 (U, V, W) to a
motor of the correct voltage and type for the application.
11)
Size the conductors in accordance with Article 310 of the National Electrical
Code. If conductors of a smaller than recommended size are used in parallel to
share current then the conductors should be kept together in as sets i.e. U1, V1,
W1 in one conduit and U2, V2, W2 in another. National and local electrical codes
should be checked for possible cable derating factors if more than three power
conductors are run in the same conduit.
12)
Install a molded case circuit breaker (MCCB) between the power source and the
inverter. Size the MCCB to clear the available fault current of the power source.
13)
Installation of inverter systems should conform to the
National Electrical Code,
regulations of the
Occupational Safety and Health Administration, all national
codes, and all regional or industry codes and standards.
14)
Only qualified personnel should install this equipment.
2 - 1
CAUTION
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