IACDRIVE I5300 Series User Manual page 179

I5300 User Manual
Function Code
P6-05 Startup DC braking current/Pre-excited current
P6-06 Startup DC braking time/Pre-excited time
Startup DC braking is generally used during restart of the AC drive after the rotating motor
stops. Pre-excitation is used to make the AC drive build magnetic field for the asynchronous
motor before startup to improve the responsiveness.
Startup DC braking is valid only for direct start (P6-00 = 0). In this case, the AC drive
performs DC braking at the set startup DC braking current. After the startup DC braking
time, the AC drive starts to run. If the startup DC braking time is 0, the AC drive starts
directly without DC braking. The larger the startup DC braking current is, the larger the
braking force is.
If the startup mode is pre-excited start (P6-00 = 3), the AC drive builds magnetic feld based
on the set pre-excited current. After the pre-excited time, the AC drive starts to run. If the
pre-excited time is 0, the AC drive starts directly without pre-excitation.
The startup DC braking current or pre-excited current is a percentage relative to the base
value.
• If the rated motor current is less than or equal to 80% of the rated AC drive current, the
base value is the rated motor current.
• If the rated motor current is greater than 80% of the rated AC drive current, the base
value is 80% of the rated AC drive current.
Function Code
Acceleration/
P6-07
Deceleration mode
It is used to set the frequency change mode during the AC drive start and stop process.
• 0: Linear acceleration/deceleration
The output frequency increases or decreases in linear mode. The I5300 provides four
group of acceleration/deceleration time, which can be selected by usingP4-00 to P4-08.
• 1: S-curve acceleration/deceleration A
The output frequency increases or decreases along the S curve. This mode is generally
used in the applications where start and stop processes are relatively smooth, such as
elevator and conveyor belt. P6-08 and P6-09 respectively defne the time proportions of
the start segment and the end segment.
• 2: S-curve acceleration/deceleration B
In this curve, the rated motor frequency
usually used in applications where acceleration/deceleration is required at the speed
higher than the rated frequency.
Parameter Name
Parameter Name Setting Range
0: Linear acceleration/deceleration
1: S-curve acceleration/deceleration A
2: S-curve acceleration/deceleration B
f
is always the inflexion point. This mode is
b
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Description of Function Codes
Setting Range
0%–100%
0.0–100.0s
Default
0%
0.0s
Default
0