4.8 No-Load Operation Test Run
120 YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual
4.8 No-Load Operation Test Run
◆ No-Load Operation Test Run
This section explains how to operate the drive with the motor decoupled from the load during a test run.
■
Before Starting the Motor
Check the following items before operation:
• Ensure the area around the motor is safe.
• Ensure external emergency stop circuitry is working properly and other safety precautions have been taken.
■
During Operation
Check the following items during operation:
• The motor should rotate smoothly (i.e., no abnormal noise or oscillation).
• The motor should accelerate and decelerate smoothly.
■
No-Load Operation Instructions
The following example illustrates a test run procedure using the digital operator.
Note: Before starting the motor, set the frequency reference d1-01 to 6 Hz.
Step Display/Result
1. Turn on the power to the drive. The initial display appears.
2.
Press the key to select LOCAL. The LO/RE light will turn on.
3.
Press to give the drive a Run command. RUN will light and the motor will rotate at 6 Hz.
4. Ensure the motor is rotating in the correct direction and that no faults or alarms occur.
5.
If there is no error in step 4, press to increase the frequency reference. Increase the frequency in
increments of 10 Hz, verifying smooth operation at all speeds. For each frequency, check the drive output
current using monitor U1-03. The current should be well below the motor rated current.
6.
The drive should operate normally. Press to stop the motor. RUN flashes until the motor comes to a
complete stop.
ALM
DIGITAL OPERATOR JVOP-182
REV DRV FOUT
DRV
LO
RE
ESC
RUN STOP
ENTERRESET
ALM
DIGITAL OPERATOR JVOP-182
REV DRV FOUT
Off On
DRV
LO
RE
ESC
RUN STOP
ENTERRESET
ALM
DIGITAL OPERATOR JVOP-182
REV DRV FOUT
DRV
Off On
Motor
Forward
LO
RE
ESC
RUN STOP
ENTERRESET
ALM
DIGITAL OPERATOR JVOP-182
REV DRV FOUT
SIEP_C710616_35.book 120 ページ ２０１５年１１月３０日 月曜日 午後２時２分
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