The User Manual of JAC200 Series General Frequency Converter
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this time
Set range
0.0Min
~
6500.0Min
After the running time from start reaches for this time, the multifunctional DO of the frequency converter
shall output “running time arrival for this time” ON signal.
F8-54
Calibration coefficient of
output power
Default value
100.0%
Set range
0.0%
~
200.0%
Linear calibration to output power can be made through this value when the output power (U0-05) doesn’t
correspond to expectations.
Group F9 Failure and protection
F9-00
Motor overload protection
selection
Default value
1
Set range
0
Prohibitive
1
Allowable
F9-01
Motor overload protection
gain
Default value
1.00
Set range
0.20
~
10.00
F9-00=0: Without motor overload protection function, motor damage risk due to overheat may exist,
therefore, the installation of relay between frequency converter and motor shall be suggested.
F9-00=1: Now, the frequency converter shall judge the overload of motor according to inverse-time curve.
The inverse-time curve of motor overload protection is: 220%
×
(F9-01)
×
rated current of motor, alarm
shall be sounded 1 min after motor overload failure occurs; 150%
×
(F9-01)
×
rated current of motor, alarm
shall be sounded 60 min after motor overload failure occurs.
The user shall set the value of F9-01 correctly according to actual overload capacity of motor. If a excessive
value is set, alarm may not be sounded when the motor is damaged due to overheat!
F9-02
Early warning coefficient
Default value
80%
Set range
50%
~
100%
This function is used to send a early warning signal to control system through DO before motor
overload
protection. The early warning coefficient is used to confirm to what extent the early warning shall been sent
before motor overload protection. The greater the value is, the less lead the early warning is.
When the output current cumulant of motor is greater than the product of overload inverse-time curve and
F9-02, the multifunctional DO of the frequency converter shall output “early warning for motor overload”
ON signal.