No-Load Operation Test Run; No-Load Operation Test Run - YASKAWA Z1000 User Manual

4.9

No-Load Operation Test Run

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.
Before starting the motor, set parameter d1-01, Frequency Reference, to 6 Hz.
1.
The Run command from AUTO mode must be OFF.
2. Turn on the power to the drive. The initial display appears.
Press to give the drive a Run command from HAND mode. The HAND light will
3. HAND
turn on 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.
If there is no error in step 3, press
frequency in increments of 10 Hz, verifying smooth operation at all speeds. For each
5.
frequency, check the drive output current using monitor U1-03. The current should be well
below the motor rated current.
The drive should operate normally. Press
6.
OFF and the motor coasts to stop.
YASKAWA ELECTRIC TOEP C710616 45F YASKAWA AC Drive – Z1000 User Manual
Step
to increase the frequency reference. Increase the
OFF
to stop the motor. The HAND light is
4.9 No-Load Operation Test Run
Display/Result
– –
- MODE - DRV
Freq Ref (AI)
U1-01= 0.00Hz
U1-02= 0.00Hz
LSEQ
U1-03= 0.00 A LREF
FWD
DIGITAL OPERATOR JVOP-183
-DRIVE- -Rdy-
- MODE - DRV Rdy
Freq Ref (OPR)
U1-01= 0.00Hz U1- 01=60.00Hz
----------------
U1-02= 0.00Hz LSEQ
U1- 02=60.00Hz
U1-03= 0.00 A
LREF
JOG FWD FWD/REV
JOG FWD FWD/REV
F1 F2
M M
ESC
HAND
RESET ENTER
ENTER
AUTO OFF
HAND
Off
Motor
Forward
– –
DIGITAL OPERATOR JVOP-183
-DRIVE- -Rdy-
- MODE - - MODE - DRV DRV Rdy Rdy
Freq Ref (OPR) FREF (OPR)
U1- 01=60.00Hz U1-01= 0.00Hz U1-01= 60.00Hz
----------------
U1-02= 0.00Hz U1-02= 0.00Hz LSEQ LSEQ
U1- 02=60.00Hz
U1-03= 0.00 A U1-03= 0.00A LREF LREF
JOG FWD FWD/REV
JOG JOG FWD FWD FWD/REV FWD/REV
F1 F2
M M
ESC
HAND
RESET ENTER
AUTO OFF
HAND
On
Rdy
ALM
HAND
On
4
ALM
HAND
Off
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