Parameter Groups
‑241‑
This parameter indicates the troubleshooting when the AC drive overloads. When
this parameter is set to 0, the AC drive will report a fault upon overload and the
output will be blocked. When this parameter is set to 1, in case that the drive is
about to be overloaded, the AC drive automatically lowers down the output
current to about the rated current. This can avoid overload; however, the running
speed may be reduced or block may occur.
For lifting load, set this parameter to 0.
F9-01
Motor overload protection gain
Address:
0xF901
Min.:
0.2
Unit:
‑
Max.: 10 Data type: UInt16
Default:
1
Change: In real time
Value Range:
0.2 to 10.00
Description
The motor overload protection gain is calculated according to the percentage of
time during which the motor runs continuously at a certain overload threshold
without reporting an overload fault.
This parameter is used to adjust the actual overload fault report time of the AC
drive when motor overload occurs.
F9-02
Motor overload pre-warning coefficient
Address:
0xF902
Min.:
50
Unit:
%
Max.: 100 Data type: UInt16
Default:
80
Change: In real time
Value Range:
50% to 100%
Description
The motor overload pre‑warning coefficient is calculated according to the
percentage of time during which the motor runs continuously at a certain
overload threshold without reporting overload pre‑warning. This function is used
to give a pre‑warning signal to the control system through DO before motor
overload protection.
This signal is used to determine how long in advance to send the pre‑warning
signal before the motor overload protection is triggered. A larger coefficient
means later transmission of the pre‑warning signal.
When the accumulative output current of the AC drive is higher than the value of
the overload time (value Y of motor overload protection inverse time‑lag curve)
multiplied by F9‑02 (Motor overload pre‑warning coefficient), the multi‑functional
DO of the AC drive outputs a motor overload pre‑warning signal.
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