NOTE
3.1
Pre-start
to
3.8
Local-control
Test conclude the
procedures for applying power to the frequency converter,
basic programming, set-up and functional testing.
3.9 System Start Up
The procedure in this section requires user-wiring and
application programming to be completed. 6 Application
Set-Up Examples is intended to help with this task. Other
aids to application set-up are listed in 1.2 Additional
Resources. The following procedure is recommended after
application set-up by the user is completed.
CAUTION
MOTOR START!
Ensure that the motor,
system and any attached
equipment is ready for start. It is the responsibility of the
user to ensure safe operation under any condition. Failure
to do so could result in personal injury or equipment
damage.
1. Press [Auto On].
2. Ensure that external
control functions are
properly wired to the frequency converter and all
programming is completed.
3. Apply an external run command.
4. Adjust the speed reference> throughout the
speed range.
5. Remove the external run command.
6. Note any problems.
If warnings or alarms occur, see 8 Warnings and Alarms.
3.10 Acoustic Noise or Vibration
If the motor or the equipment driven by the motor - e.g. a
fan
blade - is
making noise or vibrations at certain
frequencies, try the following:
•
Speed Bypass, parameter group 4-6*
•
Over-modulation, 14-03 Overmodulation set to off
•
Switching pattern and switching frequency
parameter group 14-0*
•
Resonance Dampening, 1-64 Resonance
Dampening
Start Up and Functional Tes...
VLT
®
HVAC Drive Operating Instructions
MG11AI02 - VLT
®
is a registered Danfoss trademark
31
3 3
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