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Delta VFD25AMS43AFSHA

Delta VFD25AMS43AFSHA
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Chapter 12 Description of Parameter SettingsMS300 (High Speed Model)
12-01-10
In V/F modes:
fmin
01-07
fou
t
0Hz
01-34=0
01-34=2
01-34=1
0Hz
stop output
0Hz operation
(DC brake)
stop waiting for output
V/F Curve Selection
Factory Setting: Read only
Settings 0: V/F curve determined by Pr. 01-00~01-08
When setting to 0, refer to Pr. 01-01~01-08 for motor 1 V/F curve. For motor 2, please refer to
Pr. 01-35~01-42.
Auto Acceleration / Deceleration Setting
Factory Setting: 0
Settings 0: Linear accel. / decel.
1: Auto accel., linear decel.
2: Linear accel., auto decel.
3: Auto accel. / decel.
4: Linear, stall prevention by auto accel. / decel. (limited by Pr. 01-12 to 01-21)
Setting 0 linear accel. / decel. : it will accel. / decel. according to the setting of Pr. 01-12~01-19.
Setting to auto accel. / decel. : it can reduce the mechanical vibration and prevent the
complicated auto-tuning processes. It will not stall during acceleration and no need to use brake
resistor. In addition, it can improve the operation efficiency and save energy.
Setting 3 auto accel. / decel. (Decelerate by actual load): it can auto detect the load torque and
accelerate from the fastest acceleration time and smoothest start current to the setting frequency.
When decelerating, it can auto detect the load re-generation and stop the motor smoothly with
the fastest decel. time.
Setting 4 stall prevention by auto accel. / decel. (Refer to accel. / decel. time) : if the acceleration /
deceleration is in the reasonable range, it will accelerate / decelerate by Pr. 01-12~01-19. If the
accel. /decel. time is too short, the actual accel./decel. time is greater than the setting of accel.
/decel. time.
1
2
01-00
01-12 01-14
01-16
01-18
01-13
01-15
01-17 01-19
1
2
When Pr.01-44 is set to 0.
Frequenc
y
Max.
Frequency
01-07
Min.
Frequency
accel. time
Time
decel. time
Accel./Decel. Time
When Pr.01-44 is set to 3.

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