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Chapter 5 Parameter Introductions
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119
P1.03 and P1.04 are only active when P1.00 is set to 1 (start mode 1 is selected), as
shown in Fig. 5-1-1.
The range of DC injection braking current and time are dependent on the ac drive model,
see Table 5-1-1.
DC injection braking current is a percentage value of ac drive rated current. When the
braking time is set to 0.0s, the DC injection braking process will not happen
Table 5-1-1 DC Injection braking function
Model
The range of current
The range of time
G
0.0
~
100.0%
0.0
~
30.0s
P
0.0
~
80.0%
0.0
~
30.0s
Note:
Refer to Fig. 5-1-1, the ac drive outputs DC injection braking current at start (P1.03),
during DC injection braking time at start.
Tips:
If the range of rated current of motor is smaller than the ac drive, this parameter value is
suggested to set as:
Motor rated current (A) / Ac drive rated current (A) * 100%
P1.05 Acc/Dec mode
Range: 0
~
3
【
0
】
0: Linearity
1:S-curve
2: Reserved
3: Reserved
Note:
◆
Linear Acc/Dec mode used for ordinary load: The output frequency increases or
decreases according to a constant rate. As shown in Fig. 5-1-4.
Output frequency(Hz)
Time
Preset Freq.
Acc time
Dec time
Fig. 5-1-4 Linear acceleration/deceleration
◆
Scurve change output frequency slowly at start of acceleration or end of deceleration,
in order to reduce mechanism noise and shake, lash of start and stop. It is suitable for
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