4.8 Test Run with No Load
u
No-Load Operation Test Run
This section explains how to operate the drive with the motor decoupled from the load during a test run.
n
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.
n
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.
n
No-Load Operation Instructions
The following example illustrates a test run procedure using the HOA keypad.
Step
Display/Result
1.
Before starting the motor, set parameter d1-01, Frequency Reference, to 6 Hz.
The Run command from AUTO mode must be OFF.
–
–
2.
Turn on the power to the drive. The initial display appears.
- MODE -
U1-01= 0.00Hz
U1-02= 0.00Hz
U1-03= 0.00 A
DRV
Freq Ref (AI)
Rdy
FWD
LSEQ
LREF
3.
Press
HAND
to give the drive a Run command from HAND mode. The HAND light will
turn on and the motor will rotate at 6 Hz.
F2
F1
ESC
M
M
AUTO
OFF
ENTER
RESET
-DRIVE-
U1- 01=60.00Hz
----------------
U1- 02=60.00Hz
JOG FWD FWD/REV
-Rdy-
ALM
DIGITAL OPERATOR JVOP-183
HAND
ENTER
Off
On
- MODE -
U1-01= 0.00Hz
U1-02= 0.00Hz
U1-03= 0.00 A
DRV
Freq Ref (OPR)
Rdy
JOG
FWD
FWD/REV
LSEQ
LREF
HAND
HAND
4.
Ensure the motor is rotating in the correct direction and that no faults or alarms occur.
Motor
Forward
5.
If there is no error in step 3, 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
OFF
to stop the motor. The HAND light is
OFF and the motor coasts to stop.
F2
F1
ESC
M
M
AUTO
OFF
ENTER
RESET
-DRIVE-
U1- 01=60.00Hz
----------------
U1- 02=60.00Hz
JOG FWD FWD/REV
-Rdy-
ALM
DIGITAL OPERATOR JVOP-183
HAND
On
Off
- MODE -
U1-01= 0.00Hz
U1-02= 0.00Hz
U1-03= 0.00 A
DRV
FREF (OPR)
Rdy
JOG
FWD
FWD/REV
LSEQ
LREF
HAND
HAND
- MODE -
U1-01= 60.00Hz
U1-02= 0.00Hz
U1-03= 0.00A
DRV
Freq Ref (OPR)
Rdy
JOG
FWD
FWD/REV
LSEQ
LREF
4.8 Test Run with No Load
YASKAWA TOEPYAIUPW01A YASKAWA AC Drive - U1000 iQpump Matrix Drive User Manual
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Start-Up Programming & Operation