MD280/MD280N User Manual Parameter Description
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0˖
Invalid
Setup
range
1˖
Valid
If this function is enabled, when the
inverter load fails, the inverter will
decelerate from the current running
frequency to 2H. If the load is
recovered, it will run at the setup
frequency.
Transient stop non-stop
function
Factory
default value
0
0˖ Invalid
FB-09
Setup
range
1˖ Valid
Transient stop
non-stop frequency
falling rate
Factory default
value
10.00Hz/s
FB-10
Setup
range
0.00Hz/s to maximum frequency˄F0-04˅
Transient stop non-stop
voltage recovery
judgment time
Factory
default
value
0.50s
FB-11
Setup range 0.00s to 100.00s
Transient stop non-stop
action judgment voltage
Factory
default
value
80.0%
FB-12
Setup range 60.0% to 100.0%
If the transient stop non-stop function is selected as enabled, when the bus
voltage is lower than the transient stop non-stop judgment voltage (FB-12),
the inverter will reduce the running frequency according to the reduction
rate of transient stop non-stop frequency. When the bus voltage rises and
exceeds the transient stop non-stop action judgment voltage (FB-12) and
continues to keep instantaneous stop non-stop voltage recovery judgment
time (FB-11), the inverter will recover to run with the setup frequency, or
the inverter will continue to reduce the operating frequency till stop at zero
frequency.Transient stop non-stop function is as shown in Fig.6-23.
If the transient stop non-stop reduction rate is set to a smaller value, the
load feedback value will be small and the low voltage cannot be
compensated effectively. If this parameter value is too large, the load
feedback energy is large and over voltage protection will be caused.
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