TECHTOP TD350 - Page 148

TD350 Series VFD Function parameter list
-143-
Function
code
Name
Detailed parameter description
Default
value
Modify
adjusted properly, the low compensation here
means to lower the overload protection threshold of
the motor whose running frequency is below 30Hz.
2: Frequency-variable motor (without low speed
compensation). As the cooling effect of
frequency-variable motor is not affected by the
rotating speed, there is no need to adjust the
protection value during low speed running.
P02.27
Overload
protection
coefficient of
motor 1
Motor overload multiples M=Iout/(In×K)
In is rated motor current, lout is VFD output current,
K is motor overload protection coefficient.
The smaller the K, the larger the value of M, and the
easier the protection.
When M=116%, protection is performed after motor
overload lasts for 1 hour; when M=150%, protection
is performed after motor overload lasts for 12
minutes; when M=180%, protection is performed
after motor overload lasts for 5 minutes; when
M=200%, protection is performed after motor
overload lasts for 60 seconds; and when M≥ 400%,
protection is performed immediately.
1
5
12
60
116%
200%
Time (min)
Current overload
multiple
150% 180%
Setting range: 20.0%–120.0%
100.0%
○
P02.28
Power display
calibration
coefficient of
motor 1
This function adjusts the power display value of
motor 1 only, and it does not affect the control
performance of the VFD.
Setting range: 0.00–3.00
1.00
○
P02.29
Parameter
display of motor 1
0: Display as per motor type; under this mode, only
parameters related to current motor type will be
displayed.
1: Display all; under this mode, all the motor
parameters will be displayed.
0
○