User Manual
134
User Manual
135
P9-50
Fault protection
action
selection 4
Default:00000
Ones place: speed deviation is too
large (Err42) with P9-47
Tens place: Motor overspeed (Err43)
with P9-47
Hundreds place: initial position error
(Err51) with P9-47
Thousands place: speed feedback
error (Err52) with P9-47
When “Stop in stop mode” is selected: The inverter displays A** and stops
according to the stop mode. After the stop, Err** is displayed. When
"Continuous operation" is selected: The inverter continues to run and
displays A**, and the running frequency is set by P9-54.
When “Freewheeling” is selected, the inverter displays Err** and stops
directly.
Continue to run
frequency
selection
when fault
occurs
Default:0
Abnormal
backup frequency
60.0%〜100.0%
(100.0% Maximum frequencyP0-10)
Default:
100.0%
P9-54
0: Run at the current operating
frequency
1: run at the set frequency
2: Run at the upper limit frequency
3: Run at the following frequency
limit
4: Run at abnormal standby
frequency
P9-55
When a fault occurs during the operation of the inverter and the fault is
handled in the continuous mode, the inverter displays A** and operates at the
frequency determined by P9-54.
When the abnormal standby frequency is selected, the value set by P9-55
is the percentage relative to the Maximum frequency.
P9-59
Instantaneous power
failure action selection
0:Invalid
1: Deceleration
2: Deceleration stop
Default:0
Reserved
P9-62〜100.0%
Default:85%
Instantaneous power
failure voltage rise
judgment time
000.0s〜100.0s
Default:0.5s
Instantaneous power
failure action
judgment voltage
60.0%〜100.0%
(standard bus voltage)
Default:80.0%
P9-60
P9-61
P9-62
This function means that when the instantaneous power failure or sudden
voltage drop occurs, the inverter compensates the DC bus voltage of the
inverter by reducing the output speed and reducing the output voltage of the
inverter to maintain the inverter running.
If P9-59=1, the inverter will decelerate when the power is suddenly lost or
the voltage suddenly drops. When the bus voltage returns to normal, the
inverter will accelerate to the set frequency. The basis for judging that the bus
voltage returns to normal is that the bus voltage is normal and the duration
exceeds the set time of P9-61. If P9-59=2, the inverter decelerates until the
shutdown occurs in the event of an instantaneous power failure or sudden
voltage drop.
Figure 6-27 Schematic diagram of instantaneous power failure
Voltage
Bus voltage
Instantaneous power failure
action judgment voltage P9-62
Running frequency
Instantaneous power
Failure speed reduce
Frequency switch
point P9-60
Running frequency
Instantaneous power failure
Speed reduce frequency
switch point P9-60
Instantaneous power failure action voltage
rise judgment time P6-61
Time
P9-63
Drop protection option
0: Invalid 1: Valid
Default:0
Drop detection level
0.0〜100.0%
Default:10.0%
Drop detection time
0.0〜60.0s
Default:1.0s
P9-64
P9-65
Time
Time
P9-59=1
Deceler-
ation
time 3
Pick up Acceleration time
P9-59=2 Deceleration stop
Deceler-
ation
time 4
Deceleration
time 3
Deceleration
time 4
Chapter 6 Chapter 6