Toshiba G7 manual ASD/Motor connection diagram

An inductor may be connected across terminals PA and PO to provide additional filtering. When not used, a jumper is connected across these terminals (see Figure 18 on pg. 30).

Connect the input and output power lines of the ASD as shown in Figure 4.

Note: In the event that the motor rotates in the wrong direction when powered up, reverse any two of the three ASD output power leads connected to the motor.

Figure 4. ASD/Motor connection diagram.

Connect the 3-phase input power to the input terminals of the ASD at L1/R, L2/S, and L3/T. Connect the output of the ASD to the motor from terminals T1/U, T2/V, and T3/W. The input and output conductors and terminal lugs used shall be in accordance with the requirements listed in the section titled Cable/Terminal Specifications on pg. 195.

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 2002 NEC Article 310 adjustment factors).

Note: National and local codes should be referenced when running more than three conductors in the same conduit.

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 2002 NEC Article 430.

CAUTION

For 600 volt ASDs, the 15 HP or less ASDs (P/N VT130G7U6015B – 6160B) require a class-J fuse rated at 600 Volts/30 A.

A phase-shifting transformer (or other means) must be supplied by the user when configured for 12- pulse operation.

External fuses are required on the ASDs listed below when configured for 12-pulse operation.

VT130G7U2600B(DR)

VT130G7U2750B(DR)

VT130G7U412KB(DR)

VT130G7U415KB(DR)

VT130G7U610KB(DR)

VT130G7U612KB(DR)

VT130G7U615KB(DR)

Use either the Ferraz Shawmut Semiconductor fuse (P/N A70QS200) and fuse block P234C, or the Toshiba ASD-FUSEKIT-12P. The Toshiba kit includes the required fuses and the mounting hardware for the fuses.

20 G7 ASD Operation Manual