DRV-28 inverter
s Function parameter list
-191-
Function
code
Name
Detailed parameter description
Default
value
Modi
fy
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 inverter output
current, K is motor overload protection coefficient.
The smaller the K, the larger the value of M, the
easier the protection.
if M is 116%, protection will be applied when motor
overloads for 1h; if M is 200%, protection will be
applied when motor overloads for 60s; if M is no less
than 400%, protection will be applied immediately.
1 min
1h
116 %
200 %
Time t
Motor overload multiples
Setting range: 20.0%–120.0%
100.0%
○
P12.28
Power display
calibration
coefficient of
motor 2
0.00–3.00
1.00
○
P12.29
Parameter
display of motor 2
0: Display based on the motor type; under this mode,
only parameters related to current motor type will be
displayed.
1: Display all; under this mode, all the parameters
will be displayed.
0
○
P12.30
System inertia of
motor 2
0–30.000kgm
2
0.000
○
