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Connect the input and output power lines of the
ASD as shown in
Figure
2.
Install a Molded Case Circuit Breaker (MCCB) or
fuse between the 3-phase power source and the
Lead Length Specifications
Adhere to the latest version of the NEC and any
local codes during the installation of ASD/motor
systems. Excessive lead lengths may adversely
affect the performance of the motor. Special cables
PWM Carrier
Model
460-Volt
600-volt
Note:
Contact TIC for application assistance when using lead lengths in excess of those listed.
Note:
Exceeding the peak voltage rating or the allowable thermal rise time of the motor
insulation will reduce the life expectancy of the motor.
Note:
When operating in the Vector Control mode, the carrier frequency should be set to 2.2 kHz
or above.
Note:
Above lead lengths are based on total cable length. When using parallel cables, reduce
the maximum lead length based on the number of cables in parallel.
https://www.toshiba.com/tic/
W7B ASD Installation & Operation Manual
Figure 2. ASD/Motor Connection Diagram.
Table 5. Lead Length Recommendations.
NEMA MG1 Part 31
Frequency
Compliant Motors
< 5 kHz
600 feet
5 kHz
300 feet
< 5 kHz
200 feet
5 kHz
100 feet
Installation and Connections
ASD in accordance with the fault current setting of
the ASD and NEC Article 430.
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.
are not required. Lead lengths from the ASD to the
motor in excess of those listed in
require filters to be added to the output of the ASD.
Table 5
lists the suggested maximum lead lengths
for the listed motor voltages.
NEMA MG1 Part 30
Compliant Motors
200 feet
100 feet
75 feet
50 feet
Table 5
may
15
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