Installation And Connections; Installation Notes - Toshiba H9 Quick Start Manual

Installation and Connections

The H9 Adjustable Speed Drive may be set up initially by performing a few simple configuration
settings. To operate properly, the ASD must be securely mounted and connected to a power source (3-
phase AC input at the R/L1, S/L2, and T/L3 terminals). The control terminals of the H9 ASD may be
used by connecting the terminals of the Terminal Board to the proper sensors or signal input sources
(see the section titled
System performance may be further enhanced by assigning a function to the output terminals of the
Terminal Board and connecting the terminals to the proper indicators or actuators (LEDs, relays,
contactors, etc.).
Note: The optional H9 ASD interface boards may be used to expand the I/O functionality of
the H9 ASD.

Installation Notes

When a brake-equipped motor is connected to the H9 ASD, it is possible that the brake may not release
at startup because of insufficient voltage. To avoid this, DO NOT connect the brake or the brake
contactor to the output of the H9 ASD.
If an output contactor is used for bypass operation, it must be interlocked such that commercial power is
never applied to the output terminals of the H9 ASD (U/T1, V/T2, and W/T3).
DO NOT apply commercial power to the H9 ASD output terminals U/T1, V/T2, and W/T3.
If a secondary magnetic contactor (MC) is used between the output of the ASD and the motor, it should
be interlocked such that the ST – CC connection is disconnected before the output contactor is opened.
DO NOT open and then close a secondary magnetic contactor between the ASD and the motor unless
the ASD is off and the motor is not rotating.
Note: Re-application of power via a secondary contact while the ASD is on or while the
motor is still turning may cause ASD damage.
The ASD input voltage should remain within 10% of the specified input voltage range. Input voltages
approaching the lower or upper-limit settings may require that the over-voltage and under-voltage stall
protection level parameters be adjusted. Voltages outside of the permissible tolerance should be
avoided.
The frequency of the input power should be ±2 Hz of the specified input frequency.
DO NOT use an ASD with a motor that has a current rating higher than the rated current of the ASD.
The H9 ASD is designed to operate NEMA B motors. Consult with your Toshiba International
Corporation Sales Representative before using the ASD for special applications such as with an
explosion-proof motor or applications with a piston load.
Disconnect the H9 ASD from the motor before megging or applying a bypass voltage to the motor.
Interface problems may occur when an ASD is used in conjunction with some types of process
controllers. Signal isolation may be required to prevent controller and/or ASD malfunction (contact
your Toshiba International Corporation Sales Representative or the process controller manufacturer for
additional information about compatibility and signal isolation).
Use caution when setting the output frequency. Over speeding a motor decreases its ability to deliver
torque and may result in damage to the motor and/or the driven equipment.
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I/O and Control on pg. 17 and
CAUTION
Figure 9 on pg. 20).
H9 ASD Quick Start Guide