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Actual load trial run
After confirming the operation in the no-load state, connect the motor to the mechanical system for trial operation.
Pre-operational notes
• Check the safety around the motor and machine.
• Make sure the motor is completely stopped.
• Please connect the motor and machine. Check if the mounting screws are loose and secure the motor shaft and mechanical system.
• To prevent abnormal movements in case, please be prepared to press the STOP button of the operator at any time.
Confirmation at runtime
• Is the machine moving in the correct direction (whether the direction of rotation of the motor is correct).
• Whether the motor accelerates and decelerates smoothly.
4.8.3 Trial Running with Load
After connecting the machine to the motor, perform the trial run in the same procedure as the no-load trial run.
• Check if C00.02 (output current) is too large.
1. Turn on the power to power on the drive and the keyboard is displayed normally.
2. Press the keyboard PRG key to set the keyboard digital reference frequency parameter F01.09, and set the frequency to 5.00Hz.
3. Press the RUN key, the running indicator lights up, and the motor rotates forward at 5.00 Hz.
4. Confirm that the motor rotates in the correct direction and the drive has no fault display; if the fault is displayed, the cause of the fault is eliminated.
5. Increase the given frequency of the drive, change the value of F01.09 by the up/down keys, confirm the responsiveness of the motor, and adjust F01.09
with the amplitude of 10Hz.
6. Each time the set value is increased, the output current of the drive must be confirmed by C00.02 (output current). It is normal if the output current of
the drive does not exceed the rated current of the motor.
Example: 5 Hz → 10 Hz → 20 Hz → 30 Hz → 40 Hz → 50 Hz
7. After confirming that the motor can rotate normally, press the STOP button, the running indicator will go out after the motor is completely stopped.
8. Change the frequency command and direction of rotation to confirm if there is abnormal sound and vibration.
9. If there is a control fault such as an offset or vibration, please make adjustments.
4.9 Precision Adjustment during Trial Running (Control Performance Optimization)
The following describes how to adjust the control faults such as offset or vibration that occur during the trial run. Adjust the corresponding parameters in
the table according to the control mode used and the status of the drive.
Note: Only the parameters with higher adjustment frequency are listed in this section. When you need more precise drive adjustment, please contact us.
V/f control mode
Parameters used for fine tuning of the drive (V/f control mode)
Malfunction
Parameter number
1. The motor has large
electromagnetic noise.
2. When the speed is
low (10 Hz or less) or
F01.40 [carrier frequency]
medium speed (10 to 40
Hz), misalignment and
vibration occur.
1.
The
torque
is
insufficient at low speed
F04.01 [Torque boost]
(below 10 Hz).
2. Disorder, vibration
F04.03
Poor speed accuracy
gain]
PG-free vector control mode
Parameters used for fine tuning of the drive (no PG vector control mode)
Malfunction
1.
Torque
and
speed
response are slow.
2. occurs at medium speed
(10 ~ 40Hz)
Offset, vibration
An overvoltage fault occurs at
the end of acceleration, at the
Countermeasures
• Increase the carrier frequency when the motor
electromagnetic noise is high.
• When there is an offset or vibration at low speed or
medium speed, lower the carrier frequency.
• When the torque is low at low speed, increase the set
value.
• If the offset or vibration occurs at light load, lower the
set value.
• After setting F2.06 [Motor rated current], F2.04 [Motor
[slip
compensation
rated speed], F2.10 [Motor no-load current], adjust
F04.03 as appropriate.
Parameter number
F03.02
[Speed
loop
proportional gain 1]
F03.06
[Speed
loop
proportional gain 2]
F03.03[Speed loop integration
time 1]
F03.07[Speed loop integration
time 2]
F03.04 [Speed loop filter time 1]
F03.08 [speed loop filter time 2]
Countermeasures
• When it is necessary to improve the
responsiveness of torque and speed, gradually
decrease the set value by 0.05.
• When an imbalance or vibration occurs,
gradually increase the set value by 0.05.
• When it is necessary to improve the
responsiveness of torque and speed, gradually
confirm the responsiveness and gradually
decrease the set value by 0.01.
• When an offset, vibration, or load moment of
inertia occurs, confirm the responsiveness and
gradually increase the set value by 0.05.
• When overvoltage occurs, confirm the
responsiveness and gradually increase the set
31
Basic Operation and Trial Run
Factory
Recommended
setting
value
Model
determin
1.0~ upper limit
ation
Random
0.0~ upper limit
setting
0.0%
50.0%~150.0%
Factory
Recommended
setting
value
10.00
0.01～100.00
0.100
0.000～6.000 s
0.00s
AC10 Series Frequency Inverter Technical Manual
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