Toshiba G9 ASD Quick Start Manual page 21

Power Connection Requirements
Connect the 3-phase input power to the input terminals of the ASD at R/L1, S/L2, and T/L3 (see
3 for the typical electrical connection scheme). Connect the output of the ASD to the motor from the
ASD terminals U/T1, V/T2, and W/T3. The input and output conductors and terminal lugs used shall be
in accordance with the requirements listed in the section titled
If multiple conductors are used in parallel for the input or output power and it is necessary to use
separate conduits, each parallel set shall have its own conduit and not share its conduit with other
parallel sets (i.e., place U1, V1, and W1 in one conduit and U2, V2, and W2 in another; refer to NEC
Article 300.20 and Article 310.4). National and local electrical codes should be referenced if three or
more power conductors are run in the same conduit (refer to 2008 NEC Article 310 adjustment factors).
Note:
Install a molded case circuit breaker (MCCB) or fuse between the 3-phase power source and the
ASD in accordance with the fault current setting of the ASD and 2008 NEC Article 430.
The ASD is designed and tested to comply with UL Standard 508C. Modifications to the ASD system
or failure to comply with the short circuit protection requirements outlined in this guide may disqualify
the UL rating. See
As a minimum, the installation of the ASD shall conform to 2008 NEC Article 110, the Occupational
Safety and Health Administration requirements, and to any other local and regional industry codes
and standards.
Note:
Figure 3. G9 ASD/Motor Typical Connection Diagram.
G9 ASD Quick Start Guide
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National and local codes should be referenced when running more than three
conductors in the same conduit.
Table 9 on pg. 77
In the event that the motor rotates in the wrong direction when powered up, reverse
any two of the three ASD output power leads (U, V, or W) connected to the motor.
Current/Voltage Specifications on pg.
for typeform-specific short circuit protection recommendations.
Figure
73.
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