TECHTOP TD350 - Page 203

TD350 Series VFD Function parameter list
-198-
Function
code
Name
Detailed parameter description
Default
value
Modify
P12.23
Counter-emf
constant of
synchronous
motor 2
0–10000V
300
○
P12.24
Reserved
0–0xFFFF
0x0000
●
P12.25
Reserved
0%–50% (of the rated current of the motor)
10%
●
P12.26
Overload
protection of
motor 2
0: No protection
1: Common motor (with low-speed compensation)
2: Frequency-variable motor (without low-speed
compensation)
2
◎
P12.27
Overload
protection
coefficient of
motor 2
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, 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%
○
P12.28
Power display
calibration
coefficient of
motor 2
0.00–3.00
1.00
○