YASKAWA A1000 Series User Manual

4.8 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.
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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.
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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.
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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.
- MODE -
U1-01= 0.00Hz
U1-02= 0.00Hz
U1-03= 0.00A
DRV
FREF (OPR)
Rdy
JOG FWD FWD/REV
LSEQ
LREF
2.
Press
to select LOCAL. The LO/RE light will turn on.
LO
RE
F2F1
ESC
RUN
STOP
ENTERRESET
ALARM
DIGITAL OPERATOR JVOP-180
Off On
- MODE -
U1-01= 0.00Hz
U1-02= 0.00Hz
U1-03= 0.00A
DRV
FREF (OPR)
Rdy
JOG FWD FWD/REV
LSEQ
LREF
3.
Press
to give the drive a Run command. RUN will light and the motor will rotate
at 6 Hz.
LO
RE
F2F1
ESC
RUN
STOP
ENTERRESET
ALARM
DIGITAL OPERATOR JVOP-180
RUNRUN
Off On
- MODE -
U1-01= 6.00Hz
U1-02= 0.00Hz
U1-03= 0.00A
DRV
FREF (OPR)
Rdy
JOG FWD FWD/REV
LSEQ
LREF
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 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.
– –
4.8 No-Load Operation Test Run
YASKAWA ELECTRIC TOEP C710616 41G YASKAWA AC Drive - A1000 Quick Start Guide
171
4
Start-Up Programming & Operation

YASKAWA A1000 Series Specifications

General

Series	A1000
Type	AC Drive
Altitude	Up to 1000m without derating
Output Frequency	0-400 Hz
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Communication Options	Modbus, DeviceNet, Profibus, Ethernet/IP
Ambient Temperature	-10 to 50°C
Storage Temperature	-20 to 60°C
Humidity	5% to 95% (non-condensing)
Enclosure Rating	IP20
Horsepower	0.5 to 1000 HP
Power Range	0.4 - 630 kW (varies by voltage and model)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Cooling Method	Fan Cooled
Safety	Safe Torque Off (STO)