Details about Function Parameters
128
Fb-08
Underload Protection Detection
Time
Factory
Settings
1.0s
Modification
×
Setting
Range
0.0
~
100.0s
Motor Underload Protection: When the output current is lower than Fb-07 and is maintained for a
time longer than the time settings of Fb-08, a response will be made according to the action mode
set by Fb-06. This function can promptly detect such faults as no-load pump idle operation,
broken driving belts and motor-side contactor open-circuit.
This protection function must be disabled when the inverter is under a no-load test.
Fb-09
Analog Input Offline Action
Factory
Settings
0
Modification
×
Setting
Range
0: No action
1: “AL.ACo” alarm signal is emitted; operation at the average frequency during the 10s
before offline
2: “AL.ACo” alarm signal is emitted; operation at the “analog input offline forced
frequency”
3: Er.ACo error signal is emitted, followed by a free shutdown
Fb-10
Analog Input Offline Forced
Frequency
Factory
Settings
0.00Hz
Modification
○
Setting
Range
0.00Hz
~
F0-06 “Max. frequency”
Analog Input Offline Protection: When the inverter detects an analog input signal lower than the
corresponding offline threshold value, an offline is confirmed.
Related Parameters: F6-07 “AI1Offline Threshold”, F6-16“AI2 Offline Threshold” and
F6-23“AI3 Offline Threshold”.
Fb-11
Other Protection Action Options
Factory
Settings
0022
Modification
×
Units digit: Inverter input phase lack protection
0: No action 1: Alarm and continue operation 2: Fault and free shutdown
Tens digit: Inverter output phase lack protection
0: No action 1: Alarm and continue operation 2: Fault and free shutdown
Hundreds digit: Control panel offline protection
0: No action 1: Alarm and continue operation 2: Fault and free shutdown
Setting
Range
Thousands digit: Parameter storage failure action options
0: Alarm and continue operation 1: Fault and free shutdown
The input phase lack protection function of a inverter makes judgments according to the ripples
of DC busbar voltage induced by an input phase lack. An input phase lack may not be detected in
the case of a no-load or light-load inverter. An input phase lack will be detected if a serious input
three-phase unbalance or output oscillation occurs.
Summary of Contents for SB200 Series
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