INVT GD310-011P-4-UL, Operation Manual

Page: 111 / 269

GD310-UL series VFD Function parameter
-103-
Function
code
Name Description
Default
value
Modify
counter-electromotive
force constant Ke,
then:
E=(Ke*n
N
*2π)/ 60
2. If the name plate
designate the
counter-electromotive
force constant
E’(V/1000r/min), then:
E=E’*n
N
/1000
3. If the name plate
does not designate the
above parameters,
then:
E=P/√3*I
In the above formulas:
n
N
is the rated rotation
speed, P is the rated
power and I is the
rated current.
Setting range:
0
–10000
P12.24
Initial pole
position of
synchronous
motor 2
(reserved)
0
–FFFFH (reserved)
0x0000
●
P12.25
Identification
current of
synchronous
motor 2
(reserved)
0%
–50% (the rated current of the motor)
(reserved)
10%
●
P12.26
Motor 2
overload
protection
0: No protection
1: Common motor (with low speed compensation)
2: Variable frequency motor (without low speed
compensation)
2
◎
P12.27
Motor 2
overload
protection
coefficient
Times of motor overload M = Iout/(In*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
100.0%
○