Local-Control Test; System Start Up; Acoustic Noise Or Vibration - Danfoss VLT AQUA Drive FC 202 Operating Instructions Manual

Start Up and Functional Tes...

3.7 Local-control Test

CAUTION
MOTOR START!
Ensure that the motor, system and any attached
equipment are ready for start. It is the responsibility of the
user to ensure safe operation under any condition. Failure
to ensure that the motor, system, and any attached
equipment is ready for start could result in personal injury
or equipment damage.
NOTE
The [Hand On] key provides a local start command to the
frequency converter. The [Off] key provides the stop
function.
When operating in local mode, [
decrease the speed output of the frequency converter. [◄]
and [►] move the display cursor in the numeric display.
1. Press [Hand On].
2. Accelerate the frequency converter by pressing
▲
[ ] to full speed. Moving the cursor left of the
decimal point provides quicker input changes.
3. Note any acceleration problems.
4. Press [Off].
5. Note any deceleration problems.
If acceleration problems were encountered
•
If warnings or alarms occur, see 8 Warnings and
Alarms
•
Check that motor data is entered correctly
•
Increase the ramp-up time in 3-41 Ramp 1 Ramp
Up Time
•
Increase current limit in 4-18 Current Limit
•
Increase torque limit in 4-16 Torque Limit Motor
Mode
If deceleration problems were encountered
•
If warnings or alarms occur, see 8 Warnings and
Alarms.
•
Check that motor data is entered correctly.
•
Increase the ramp-down time in 3-42 Ramp 1
Ramp Down Time.
•
Enable overvoltage control in 2-17 Over-voltage
Control.
See 4.1.1 Local Control Panel for resetting the frequency
converter after a trip.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.ctiautomation.net - Email: info@ctiautomation.net
®
VLT AQUA Drive
Operating Instructions
▲ ▼
] and [ ] increase and
®
MG20M902 - VLT is a registered Danfoss trademark
NOTE
3.2 Applying Power to the Frequency Converter to 3.3 Basic
Operational Programming conclude the procedures for
applying power to the frequency converter, basic
programming, set-up and functional testing.

3.8 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.

3.9 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
3 3
29