TD20 Series VFD
Function Parameters
-37-
Function
code
Name
Detailed instruction of parameters
Default
value
Modify
for the iron
core of AM1
P02.26
Motor
overload
protection
selection
0: No protection
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: Frequency conversion motor (without low speed
compensation). Because the heat-releasing of the
specific motors won't be impacted by the rotation speed,
it is not necessary to adjust the protection value during
low-speed running.
2
◎
P02.27
Motor
overload
protection
coefficient
Times of motor overload M = Iout/(In x K)
In is the rated current of the motor, Iout is the output
current of the VFD and K is the motor 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.
Times of motor overload
200%
116%
1 hour
1 minute
Time
Setting range: 20.0%
–120.0%
100.0%
○
P02.28
Correction
coefficient of
motor 1 power
Correct the power displaying of motor 1.
Only impact the displaying value other than the control
performance of the VFD.
Setting range: 0.00
–3.00
1.00
○
Summary of Contents for TD20 Series
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Page 129: ...TD20 Series VFD Appendix C Peripheral Options and Parts 127 PB External brake resistor TD20...
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