YASKAWA CR700, Техническое руководство, Страница: 193 / 886

Startup
Procedure
and
Test
Run
3
3.9 No-load Test Runs
YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual 193
3.9 No-load Test Runs
After you set the basic parameters and do Auto-Tuning, do a test run.
WARNING!
Crush Hazard. Test the system to make sure that the drive operates safely after you wire the drive and set
parameters. If you do not test the system, it can cause damage to equipment or serious injury or death.
◆
No-load Test Runs
Before connecting the motor with machinery, run a no-load test to confirm operational status.
■
Precautions before Operation
Before rotating the motor, check the following items.
• Make sure there are no issues related to safety around the motor and machinery.
• Ensure that all emergency stop circuits and machine safety mechanisms are functioning correctly.
■
Checklist before Operation
Before operation check the following items:
• Is the motor rotating in the forward direction?
• Is the motor rotating smoothly (no abnormal sounds or abnormal vibrations)?
• Is the motor accelerating and decelerating smoothly?
◆
Perform a No-Load Test Run
This section explains how to perform a no-load test run.
1.
Set
b1-01 = 0 [Frequency Reference Selection 1 = Keypad]
or
b1-02 = 0 [Run Command Selection 1 =
Keypad].
will illuminate when the keypad is the Run command source.
2.
Push (Home) to show the HOME screen.
If [Home] is not on , push (Back) to show (Home) on .
3.
Push to show d1-01 [Reference 1] , and set it to 6.00 Hz .
4.
Push .
LED illuminates, and the motor runs at 6.00 Hz in the forward direction.
5.
Make sure that the motor is rotating in the correct direction and that the drive does not show a fault.
If the drive detects a fault, remove the cause.
A - Forward Rotation of Motor (Counter Clockwise Direction as Seen from Load Shaft)
6.
Push to increase the frequency reference.
Change the setting value in increments of 10 Hz if necessary and examine the response.
7.
Each time you increase the setting value, use U1-03 [Output Current] to check the drive output current.
When the output current of the drive is not more than the motor rated current, the status is correct.
Example: 6 Hz -> 20 Hz -> 30 Hz -> 40 Hz -> 50 Hz -> 60 Hz
8.
Make sure that the motor rotates correctly, then push .
will flash. When the motor stops, the LED will go out.
Change settings as needed according to how b1-01 and b1-02 have assigned the Run command source and
frequency reference.