Senlan Hope800 Series Manual page 115

 When the motor overload protection takes effect, the motor can continue to run only after it is cooled.
Caution: The motor overload protection function is only applicable to applications where one inverter drives
one motor. For applications where one inverter controls more than one motor, please install a
thermal protector on each motor.
Fb-03 Motor load overweight protection
Units digit: Overweight detection mode
0: Always detect
Setting
Tens digit: Action to overweight
range
0: No action
fault
Fb-04 Motor load overweight detection level
Setting
20.0~200.0％(motor rated current=100％)
range
Fb-05 Motor load overweight detection time
Setting
0.0~30.0s
range
When the motor current exceeds Fb-04 and lasts for a period of time longer than Fb-05, the motor acts
according to the setting of Fb-03. This function is used to detect whether the mechanical load is
abnormal and causes an excessively large current.
Fb-06
Setting 0: No action
range fault
Fb-07 Inverter underload protection level
Setting
0.0~100.0％(inverter rated current=100％)
range
Fb-08 underload protection detection time
Setting
0.0~100.0s
range
When the output current is lower than Fb-07 and lasts for a period of time longer than Fb-08, the inverter
acts according to the setting of Fb-06. This function can timely detect such faults as no-load turning or
water pump, breaking of conveying belt and opening of contactor on the motor side.
Do not enable this protection function during the inverter no-load test.
Fb-09 Analog input disconnection action
0: No action
Setting 1: Run at the average frequency within 10s before disconnection, with an AL.Aco alarm
range 2: Run at the frequency set by Fb-10, with an AL.Aco alarm
3: Coast to a stop, with an Er.Aco alarm
Fb-10 Frequency after analog input disconnection
Setting
0.00Hz~F0-06
range
The analog input is considered to be disconnected when the inverter detects that the analog input signal
is lower than the disconnection threshold.
Related parameters: F6-06 and F6-13.
1: Detect only in constant-speed operation
1: Continue running with an alarm
Inverter underload protection
1: Continue running with an alarm
6 Parameter Description
Default 00
2: Coast to a stop due to
Default 130.0%
Default 5.0s
Default 0
2: Coast to a stop due to
Default 30.0%
Default 1.0s
Default 0
Default 0.00Hz
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