Senlan Hope800 Series Manual page 116

6 Parameter Description
Fb-11
Units digit: inverter input phase loss protection
0: No action
1: Continue running with an alarm
2: Coast to a stop due to fault
Tens digit: inverter output phase loss protection
0: No action
1: Continue running with an alarm
Setting
2: Coast to a stop due to fault
range
Hundreds digit: keypad disconnection protection
0: No action
1: Continue running with an alarm
2: Coast to a stop due to fault
Thousands digit: parameter store failure protection
0: Continue running with an alarm
1: Coast to a stop due to fault
Inverter input phase loss is judged by the DC link voltage ripples it causes. In no-load or slight-load
operation, the input phase loss may not be able to be detected. When there is great imbalance among the
three input phases or great oscillation with the output, input phase loss will also be detected.
When the inverter has the fault of output phase loss, the motor will run in single phase, which will lead
to both a greater current and torque pulsation. Output phase loss protection prevents the motor and its
mechanical load being damaged.
When the output frequency or current is very low, the output phase loss protection will be invalid.
Fb-12 Accel overcurrent stall prevention
Setting
0: Invalid
range
Fb-13
Setting
10.0~150.0％(inverter rated current=100%)
range
Fb-14 Constant-speed overcurrent stall prevention
Setting
0: Invalid
range
Fb-15 Constant-speed overcurrent stall point
Setting
10.0~150.0％(inverter rated current=100％)
range
Fb-16
Setting
0: Invalid
range
Fb-17
220v class: 325~375V, default 350V
Setting
380v class: 650~750V, default 700V
range
690v class: 1125~1300V, default 1212V
During acceleration, when Fb-12 is valid and the output current is greater than Fb-13, the acceleration
stops temporarily. After the current drops the motor continues to accelerate. See diagram (a) below.
During constant-speed running, when Fb-14 is valid and the output current is greater than Fb-15, the
112
Other protection actions
Accel overcurrent stall point
Overvoltage stall prevention
Overvoltage stall point
Default 0022
Default 1
1: Valid
Default
150.0％
Default 1
1: Valid
Default
150.0％
Default 1
1: Valid
350V
Default 700V
1212V
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