Pentax DSI-200 Series User Manual page 94

Start frequency hold time
P6-04
Set range
To ensure the motor torque at start-up, set the appropriate starting frequency. In order to
fully establish the magnetic flux when starting the motor, it is necessary to start the
frequency for a certain time. The start frequency P6-03 is not limited by the lower limit
frequency. But the set target frequency is less than the starting frequency, the inverter does
not start, in standby mode.
During the forward / reverse switching, the start frequency hold time does not work.
The start frequency hold time is not included in the acceleration time but is included in
the operation time of the simple PLC.
DC braking current / pre-
excitation current before
P6-05
Set range
DC braking time before start /
pre-excitation time
P6-06
Set range
Start the DC brake, generally used to stop the operation of the motor and then start. Pre-
excitation for the first induction motor to establish a magnetic field and then start to
improve the response speed.
The start of the DC brake is valid only when the start mode is a direct start. At this point
the inverter first set the DC braking current to start the DC braking, after starting the DC
braking time and then start running. If the DC braking time is set to 0, it will not start
directly without DC braking. The greater the DC braking current, the greater the braking
force.
If the starting mode is pre-excitation start of the asynchronous machine, the inverter will
set the magnetic field in advance according to the set pre-excitation current, and then start
the operation after the set pre-excitation time. If the pre-excitation time is set to 0, it is not
directly pre-energized.
Starting the DC braking current / pre-excitation current is the percentage of the rated
current relative to the inverter.
Acceleration and
deceleration mode
P6-07

0： linear acceleration and deceleration
starting
selection
1：S curve acceleration / deceleration A (static)
Set range
(dynamic)
Factory
default
0.0s～100.0s
Factory
default
0%～100%
Factory
default
0.0s～100.0s
Factory default
0: linear acceleration/deceleration
2：S curve acceleration/deceleration B
- 94 -
0.0s
50%
0.0s
0