Goodrive350-19 series VFD Operating
- 143 -
Function
code
Name
Description
Default
value
synchronous motor 2
depended
P12.21
Direct-axis inductance of
synchronous motor 2
0.01
–655.35mH
Model
depended
P12.22
Quadrature-axis inductance
of synchronous motor 2
0.01
–655.35mH
Model
depended
P12.23
Counter-emf constant of
synchronous motor 2
0
–10000
300
6.5.7 Start/stop control
The start/stop control of the VFD is divided into three states: start after running command at power-up;
start after restart-at-power-cut function is effective; start after automatic fault reset. Descriptions for
these three start/stop control states are presented below.
There are three start modes for the VFD, which are start at starting frequency, start after DC brake,
and start after speed-tracking. You can select the proper start mode based on field conditions.
For large-inertia load, especially in cases where reversal may occur, you can choose to start after DC
brake or start after speed-racking.
Note:
It is recommended to drive synchronous motors in direct start mode.
1.
Logic diagram for running command after power-up
Jogging?
N
1
f
1
t
P00.11
Acceleration
time
P00.12
Deceleration time
A
cc
e
le
ra
tio
n
p
ro
ce
ss
D
e
ce
le
ra
tio
n
p
ro
ce
ss
P00.03
A
c
c
e
le
ra
ti
o
n
p
ro
c
e
s
s
D
e
c
e
le
ra
tio
n
p
ro
c
e
s
s
P00.03
1
f
1
t
P08.07
Acceleration
time
P08.08
Deceleration time
A
cc
e
le
ra
tio
n
p
ro
ce
ss
D
e
ce
le
ra
tio
n
p
ro
ce
ss
P08.06
1
t
1
f
1
t
Jump
frequency 2
1/2* jump amplitude 2
1/2* jump amplitude 2
Jump
frequency 1
1/2* jump amplitude 1
1/2* jump amplitude 1
Jump
frequency 3
1/2* jump amplitude 3
1/2* jump amplitude 3
Y
Start after speed-tracking
P01.00
Running mode of start
Starting
frequency of
direct start
Hold time of starting frequency
Brake time before
start
Brake
current
before start
P01.05
Acceleration/deceleration mode
selection
P00.11
Acceleration
time
P00.12
Deceleration time
0
1
2
0
1
Straight-type
acceleration/deceleration
S curve-type
acceleration/deceleration
Direct start
Start after DC brake
Running
frequency of
jogging
1
f
2.
Logic diagram for restart after power-off