- 60 -
HLP-C
+
Inverters
C073=10
C074=1
C073=40
C077=0
In case of C077=0, 2V-10Vsignal is
valid; 0V-2V is invalid. Motor will
not run
C078 Analog Quantity Filtering Constant
Set Range
：
0~50 Unit
：
1 Factory Setting
：
20
The setting of this parameter is related to the responding speed
of analog quantity. The higher the value of C078 is set, the
slower the responding speed of analog quantity will become.
Too low setting of C078 may cause the instability of frequency
with fructuation.
C079 Overvoltage Stall Prevention Select
Set Range
：
0~1 Factory Setting
：
1
0
：
Overvoltage stall prevention function is invalid.
1
：
Overvoltage stall prevention function is valid.
When the inverter is in decelerating, due to the effect of load
inerttia, the motor will produce a return energy to the inverter
and cause the DC side voltage of the inverter increase. So when
the function of overvoltage stall prevention is set valid and the
DC voltage of the inverter becomes too high, the inverter will
stop decelerating till the DC side voltage decreases to its rated
value, then the inverter will go on to execute deceleration and
the deceleration time will be extended automatically.
* Note: When the output voltage is higher the inverter will
become abnormal or turn to protection. In such case C079 can be
set to 0 (Invalid), which is easy to cause overvoltage protection.
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