No-Load Operation - YASKAWA V1000 Series Installation & Start-Up Manual

No. Name
Sets the base speed of the motor in revolutions per
Motor
minute r/min (RPM).
T1-07 Base
Enter the motor base speed for extended speed range
Speed
motors.
Provides the iron loss for determining the Energy
Saving coefficient.
Motor When power is cycled, the value set to E2-10 will
T1-11
Iron Loss appear (the motor iron loss). If T1-02 is changed, an
initial value for the motor capacity will appear that is
close to the capacity that was changed.
<1> Select motor 2 to display this selection.
<2> Voltage and frequency settings for a vector motor or drive motor are often lower than for standard
motors. Be sure to enter Auto-Tuning data according the motor nameplate and Motor data sheets. If
the no-load voltage and frequency values are known, enter those values into T1-03 and T1-05
<3> The default setting for this parameter is determined by the drive capacity (set by parameter o2-04).
Precision Settings for Auto-Tuning
■
Basic motor nameplate data can be used to auto-tune a motor. However, improved
performance can be achieved by using precise data for base voltage and base
frequency. If the base no-load voltage and frequency are known, enter this data
when executing auto-tuning to improve performance.
Parameter
T1-03 Enter the motor rated voltage
T1-05 Enter the motor base frequency
◆

No-Load Operation

This section explains how to operate the drive with the motor uncoupled from the
load during a test run. Performing the test run is necessary to confirm that the auto-
tuned parameters generate the desired motor performance.
YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
Description
Normal Settings
Range
0 to
24000
0 to
65535
Precision Tuning
Enter the no-load voltage when the motor is operating at its
rated revolutions per minute
Enter the no-load frequency when the motor is operating at its
rated revolutions per minute
4.5 Test Run
Control
Mode
Def. Addr. Pg.
O
V P
Hex
L
F M
V
1750
A A −
707 407
r/min
14W A − − 70B
408
169
4