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Specification of high-performance vector convertor
Load missing protection selection
P9-63
Setting range
Load missing detection level
P9-64
Setting range
Load missing testing time
P9-65
Setting range
If the load missing protection function is enabled, when the inverter output current is less than carrying out the detection
level P9-64, and the duration is greater than the load loss detection time P9-65 when the output frequency is automatically
reduced to 7% of the nominal frequency. During the off-load protection, if the load is restored, the drive automatically
reverts to run at a set frequency.
Over-speed detection value
P9-67
Setting range
Over-speed detection time
P9-68
Setting range
This function is only effective when the inverter running has speed sensor vector control.
When the drive detects the actual speed of the motor exceeds a set frequency, greater than the value exceeds the overspeed
detection value P9-67, and the duration is greater than the over-speed detection time P9-68, the inverter fault alarm Err43,
according to the fault and the protection mode deal with.
Excessive speed deviation detection
P9-69
Setting range
Excessive speed deviation detection
P9-70
Setting range
This function is only effective when the inverter running has speed sensor vector control.
When the drive detects the actual speed of the motor and set frequency deviation, the deviation is greater than the speed
deviation detection value P9-69, and the duration is greater than the speed deviation detection time P9-70, the inverter fault
alarm Err42, and processed according to the operation mode fault protection.
When the speed deviation detection time is 0.0s, cancel the speed deviation fault detection.
PA Group--Process control PID function
PID control is a common method of process control by the controlled amount of the difference between the amount of the
feedback signal and the target signal is proportional, integral, differential operation by adjusting the output frequency to form
a closed-loop system, so that the amount charged in the stable target value.
Suitable for flow control, pressure control and temperature control and process control applications, PID control process
block diagram of Figure 6-25.
Factory default
0
1
Factory default
0.0%～100.0% (motor rated current)
Factory default
0.0s～60.0s
Factory default
0.0% to 50.0% (maximum frequency)
Factory default
0.0s～60.0s
Factory default
0.0% to 50.0% (maximum frequency)
Factory default
0.0s～60.0s
- 123 -
Parameter description
0
Invalid
Valid
10.0%
1.0s
15.0%
2.0s
20.0%
2.0s
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