Q9 Plus Asd Characteristics - Toshiba VLP Technology Q9 Plus Installation & Operation Manual

Q9 Plus ASD Characteristics

Over-Current Protection
Each Q9 Plus ASD model is designed for a specified operating power range. The Q9 Plus ASD will incur
a trip if the design specifications are exceeded.
However, the Q9 Plus ASD may be operated at 110% of the specified output-current range for a limited
amount of time as indicated in the section titled
Prevention Level
When using the Q9 Plus ASD for an application that controls a motor which is rated significantly less
than the maximum current rating of the Q9 Plus ASD, the over-current limit setting will have to be
changed to match the application. See
ASD/motor configuration.
ASD Capacity
The Q9 Plus ASD must not be used with a motor that has a significantly larger capacity, even if the motor
is operated under a small load. A Q9 Plus ASD being used in this way will be susceptible to a high-output
peak current which may result in nuisance tripping.
Do not apply a level of input voltage to a Q9 Plus ASD that is beyond that which the Q9 Plus ASD is
rated. The input voltage may be stepped down when required with the use of a step-down transformer or
some other type of voltage reduction system.
Using Vector Control
Using Vector Control enables the system to produce very high torque over the entire operating range
even at extremely low speeds. Vector Control may be used with or without feedback. However, using
feedback increases the speed accuracy for applications requiring precise speed control. Enabling the
Automatic Energy Savings further increases the efficiency of the Q9 Plus ASD while maintaining its
robust performance.
Vector Control is not capable of operating multiple motors connected in parallel.
See V/f Pattern on pg. 87
Hand/Auto Operation
While running in the Hand mode at a non-zero speed, if the RJ45 connector is removed from the EOI, the
Q9 Plus ASD remains in the Hand mode running at the last commanded speed even though the Hand
LED is off. The Q9 Plus ASD output remains at the frequency of the Frequency Command field at the
time of the disconnect for the duration of the disconnect.
To prevent this condition, before disconnecting the RJ45 connector, ensure that the Q9 Plus ASD is off.
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(see F601) may be adjusted to help with nuisance over-current trips.
Motor Overload Protection Level 1
for further information on using Vector Control.
CAUTION
Voltage/Current Specifications on pg.
for further information on this
Q9 Plus ASD Installation and Operation Manual
264. Also, the Stall