INVT Goodrive300-19 Series Operation Manual page 60

Goodrive300-19 series open loop vector inverter special for hosit
Function
Name
code
overload
protection
Motor 1
overload
P02.27
protection
coefficient
Correction
P02.28
coefficient
of motor 1
Detailed instruction of parameters
1: Common motor (with low speed compensation).
Because the heat-releasing effect of the common
motors will be weakened, the corresponding electric
heat protection will be adjusted properly. The low
speed compensation characteristic mentioned here
means reducing the threshold of the overload
protection of the motor whose running frequency is
below 30Hz.
2: Variable frequency motor (without low speed
compensation) Because the heat-releasing effect of
the specific motors will not be impacted by the
rotation speed, it is not necessary to adjust the
protection value during low-speed running.
Times of motor overload M= Iout/(In*K)
In is the rated current of the motor, Iout is the output
current of the inverter and K is the motor overload
protection coefficient.
So, the bigger the value of K is, the smaller the value
of M is. When M=116%, the fault will be reported after
1 hour, when M=200%, the fault will be reported after
1 minute, when M>=400%, the fault will be reported
instantly.
Setting range: 20.0%~120.0%
Correct the power displaying of motor 1.
Only impact the displaying value other than the
control performance of the inverter.
-59-
Function parameters
Default
Modify
value
○
100.0%
●
1.00