Installation And Connections; Installation Notes - Toshiba Q9+ Installation & Operation Manual

Adjustable speed drives
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Installation and Connections

The ASD 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 ASD may be used by connecting the terminals
of the Terminal Board (P/N 072314P903) to the
proper sensors or signal input sources (see the
section titled
I/O and Control on pg.
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 Q9 Plus ASD interface
boards may be used to expand the I/O
functionality of the ASD.

Installation Notes

CAUTION
When a brake-equipped motor is connected to the
ASD, it is possible that the brake may not release at
start up because of insufficient voltage. To avoid
this, DO NOT connect the brake or the brake
contactor to the output of the 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 ASD
(U/T1, V/T2, and W/T3).
DO NOT apply commercial power to the 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 Q9 Plus
ASD is on or while the motor is still
turning may cause ASD damage.
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The Q9 Plus ASD input voltage should remain
within 10% of the specified input voltage range.
Input voltages approaching the upper or lower-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 power
14).
rating higher than the rated output of the ASD.
The Q9 Plus ASD is designed to operate NEMA B
motors. Consult with the TIC Customer Support
Center before using the ASD for special
applications such as with an explosion-proof motor
or applications with a piston load.
Disconnect the 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
the TIC Customer Support Center 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 the ability to
deliver torque and may result in damage to the
motor and/or the driven equipment.
Not all ASDs are equipped with internal primary
power input fuses (HP dependent). When
connecting two or more drives that have no internal
fuse to the same power line as shown in
will be necessary to select a circuit-breaking
configuration that will ensure that if a short circuit
occurs in ASD 1, only MCCB2 trips — not MCCB1.
If it is not feasible to use this configuration, insert a
fuse between MCCB2 and ASD 1.
Figure 1. Typical Circuit Breaker Configuration.
Installation and Connections
Q9 Plus ASD Install/Op Manual
Figure
1., it
9

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