V1.5 ©2009 JetAir Technologies, LLC
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Start-Up
Wear safety glasses and earplugs when working on the blower system, airknife, or
discharge nozzles of your JetAir Technologies Blower System.
WARNING: The Adjustable Frequency AC Drive maybe programmed to automatically
start the when line power is turned on to the Adjustable Frequency AC Drive. In this
case, the blower will start and accelerate to the programmed speed as specified for
your application. If you are not sure of the configuration, please contact JetAir
Technical Support at 805-654-7000.
1.
Start Methods
Following proper connection of line power to the AC Drive and from the AC Drive to
the Blower Motor the blower is ready to start. Specific methods to Start and Stop the
blower may vary depending on the application. Typical start configurations include:
A.
Start / Stop blower when power is applied or removed from the AC Drive
B.
Start / Stop blower using enclosure mounted ‘on-off-auto’ switch
C.
Start / Stop blower by using HIM keypad on Drive or Enclosure Door
D.
Start / Stop blower using AC Drive installed Comm Card
E.
Start / Stop blower using customer PLC
Frequent Start / Stop Warning: Contact JetAir immediately if you application requires
the blower to start / stop more than 3 times / hour as this requires an idle speed
option to keep the blower motor from overheating.
Consult the Powerflex 70 AC Drive Parameter listing provided and programmed into
your AC Drive. Consult the Powerflex 70 User Manual for a comprehensive list of all
input wiring options for drive and speed control. The Start method and associated
parameters were entered and tested with your Blower by JetAir prior to shipment.
The AC Drive configured with the blower is normally preprogrammed by JetAir to start
and accelerate to your specific operating speed in 30 seconds (acceleration times may
vary depending on application requirements). If you have any questions about your
configuration or wish to change control parameters, please contact JetAir for
assistance.
Changing factory programmed parameters or ‘resetting to defaults’ without consulting
JetAir may result in permanent damage to the AC Drive and Blower and may void your
warranty.
2.
Check Motor Rotation
The blower should be rotating counter-clockwise while looking from the impeller side
of the blower. Check this by ‘bumping’ the motor using the Start command from the
blower and observing the rotation. Rotation of the cooling fan on the rear of the
motor may also be used. Note that correct rotation of the cooling fan is ‘clockwise’
