Connecting The Asd; Power Connections - Toshiba WX9 ASD Installation & Operation Manual

Connecting the ASD

Contact With Three-Phase Input/Output Terminals May Cause An
Electrical Shock Resulting In Injury Or Loss Of Life.
Refer to the section titled
Specifications on pg. 19

Power Connections

See Figure 20 on pg. 30
R/L1, S/L2, and T/L3 are the three-phase input supply terminals for the ASD.
U/T1, V/T2, and W/T3 are the output terminals of the ASD that connect to the motor.
Connect the input and output power lines of the ASD as shown in
An inductor (DCL) may be connected across the PO and PA/+ terminals to provide additional filtering.
When not used, a jumper must be connected across these terminals.
PA/+ and PB are used for the DBR connection if using a braking resistor (not used with the WX9
ASD).
PC/- is the negative terminal of the DC bus.
Ensure that the ASD power has been turned off and wait at least the minimum time indicated on the
enclosure-mounted label before coming into contact with any circuits.
Power Connection Requirements
Connect the three-phase input power of the correct voltage to the input terminals of the ASD at R/L1, S/
L2, and T/L3 (see
terminal locations).
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 Voltage/Current Specifications on pg.
Install a molded case circuit breaker (MCCB) or fuse between the three-phase power source and the
ASD in accordance with the fault current setting of the ASD and the NEC Article 430.
The ASD is designed and tested to comply with UL Standard 508C. Modifications to the ASD system
may disqualify the UL rating.
As a minimum, the installation of the ASD shall conform to the NEC Article 110 ("Requirements for
Electrical Installations"), all regulations of the Occupational Safety and Health Administration, and any
other applicable national, regional, or industry codes and standards.
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 (U, V, or W) connected to the motor.
WX9 ASD Installation and Operation Manual
DANGER
Installation Precautions on pg. 4
before attempting to connect the ASD and the motor to electrical power.
for a system I/O connectivity schematic.
Figure 4 for the typical electrical connection scheme and
CAUTION
and the section titled
Figure 4 on pg. 18.
Figure 5 on pg. 18
202.
Lead Length
for the
17