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TOSHIBA
2 - 1
SECTION 2: Installation and Operation
Installation Safety Precautions
1) Install in a secure and upright position in a well ventilated location that is out of
direct sunlight. The ambient temperature should be between -10° C and 40° C.
2) Allow a clearance space of 8 inches (20 cm) for the top and bottom and 2 inches
(5 cm) on both sides. For models 2010-2270 and models 4015-4500, the top and bottom
clearance can be reduced to 4 inches (10 cm). This space will insure adequate ventilation.
Do not obstruct any of the ventilation openings.
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) 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 (See Grounding page 4-5).
THE METAL OF CONDUIT IS NOT AN ACCEPTABLE GROUND.
8) Use lockout/tagout procedures before connecting three phase power of the
correct voltage to input terminals L1, L2, L3 (R, S, T) and 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. Size the conductors in accordance with
Selection of
Main Circuit Wiring Equipment and Standard Cable Sizes
Page 4-3.
9) If conductors of a smaller than recommended size are used in parallel to share
current then the conductors should be kept together in 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.
10) 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.
11) Use separate metal conduits for routing the input power, output power, and
control circuits.
12) Installation of drive systems should conform to the
National
Electrical Code
,
regulations of the
Occupational Safety and Health Administration
, all national,
regional or industry codes and standards.
13) If the factory provided enclosure is removed from the drive, then it must be
provided with an alternate enclosure before operating. The alternate enclosure
should be a minimum of NEMA 1.
CAUTION