Chapter 5 Function parameter
102
This feature means that when the momentary power cut happens or the voltage suddenly
reduces, the drive will reduce the output speed to compensate the reduced value of the inverter DC
bus voltage by using load feedback energy, in order to maintain the inverter to continue running.
If F8.26 = 1, when the momentary power cut happens or the voltage suddenly reduces, the
inverter will decelerate, when the bus voltage is back to normal, the inverter will normally
accelerate to the set frequency to run. To determine whether the bus voltage returns to normal or
not, check whether the bus voltage is normal and lasts for longer than the set time by F8.28.
If F8.26 = 2, when the momentary power cut happens or the voltage suddenly reduces, the
inverter will decelerate till to stop.
motor temperature sensor type
0: Invalid; 1: PT100 detect
Motor temperature sensor signal, need to connect to the panel S1, S2, GND terminal.
motor overheat protection value
Motor overheating forecasting warning threshold
When the motor temperature is more than motor overheating protection valve value F8.34,
frequency converter goes in fault alarm, and proceeds according to the selected fault protection
action in F8.18.
When the motor temperature exceeds motor overheating forecasting warning threshold in F8.35,
inverter multifunction DO function 39 early warning turns ON to signal motor overheating pre-
warning. The motor temperature is displayed in d0.41 if the sensor is a PT100 and not a PTC with
jump characteristic.
5-2-11.Communication parameter: F9.00-F9.07
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