AC90 TENSION CONTROL FREQUENCY INVERTER MANUAL
Function Parameter specifications
129
Current limit frequency ACC/DEC time while running
FA.19
OV protection respond
gain
Setting range: 0-10.0
Factory set: 0.2
OV protection responds gain
: It track and adjust while OV protection process. The frequency inverter adjusts the
frequency adding according to the bus voltage increasing rate and actual bus voltage. Increasing the respond gain can
improve the respond speed. But it makes the speed shake.
FA.20 Reserved
FA.21
Motor overload protective
coefficients
Setting range: 20.0-250.0%
Factory set: 100.0%
While motor overload for long time, it will over heat. This parameter is used to set coefficients of the frequency inverter
relay protection to the motor.
Motor OL protection coefficients =motor protection coefficients / motor rated coefficients
While one inverter for multi-motor, this function does not work. To protect motor, please install heat protection
relay at every motor input terminal.
FA.22
Malfunction auto-reset
times
Setting range: 0-5
Factory set: 0
FA.23
Malfunction auto-reset
interval
Setting range: 0.1-100.0s
Factory set:1.0s
Malfunction auto-reset times:
0: Off
No automatic reset function.
1-5: On
1-5 is times of automatic reset after fault.
Output terminal can be selected to act or not act in automatic reset process. Details refer to
[F2.29-F2.31]
.
Malfunction auto-reset interval:
It defines waiting time before resetting after fault.
Note: 1. This function is only valid for fault of OL, OC, system abnormity, under voltage. Not valid for other
faults.
2. Can not reset before dealing with malfunction.
Attention: Please use this function carefully in occasions that can not start with load, or that needs alarm
immediately while inverter no output.
FA.24 Reserved
FA.25 Malfunction
types
Please see malfunction code table
--
FA.26
Malfunction running
frequency
0.00-max frequency
--
FA.27
Malfunction output
voltage
0-1500V --
FA.28
Malfunction output current
0.1-2000.0A
--
FA.29
Malfunction bus voltage
0-3000V
--
FA.30
Malfunction module
temperature
0-100
℃
--
FA.31 Malfunction
machine
LED
“0” digit: run direction
--