Lead Length Specifications - Toshiba H9 Installation And Operation Manual

Lead Length Specifications

Adhere to the NEC and any local codes during the installation of ASD/Motor systems. Excessive lead
lengths may adversely effect the performance of the motor. Special cables are not required. Lead lengths
from the ASD to the motor in excess of those listed in
of the ASD. Table 1
Model
230 Volt
460 Volt
Note: Contact Toshiba for application assistance when using lead lengths in excess of those
listed.
Exceeding the peak voltage rating or the allowable thermal rise time of the motor
insulation will reduce the life expectancy of the motor.
When operating in the Vector Control mode the carrier frequency should be set to
2.2 kHz or above.
20
lists the suggested maximum lead lengths for the listed motor voltages.
Table 1.
PWM Carrier
Frequency
All
< 5 kHz
≥ 5 kHz
Table 1 may require filters to be added to the output
NEMA MG-1-1998 Section IV Part 31
Compliant Motors
1000 feet
600 feet
300 feet
H9 ASD Installation and Operation Manual
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