Delta C200 Series User Manual page 200

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This parameter determines the frequency when DC Brake will begin during deceleration. When
this setting is less than start frequency (Pr.01-09), the start-point for DC brake will start from the
min. frequency.
DC Brake at Start-up is used for loads that may move before the AC drive starts, such as fans and
pumps. Under such circumstances, DC Brake can be used to hold the load in position before
setting it in motion.
DC Brake at stop is used to shorten the stopping time and also to hold a stopped load in position,
such as crane or cutting machine.
DC Brake at Start-up is used for loads that may move before the AC drive starts, such as fans and
pumps. Under such circumstances, DC Brake can be used to hold the load in position before
setting it in motion.
DC Brake at stop is used to shorten the stopping time and also to hold a stopped load in position,
such as crane or cutting machine.
Reserved
Restart after Momentary Power Loss
Settings 0: Stop operation
This parameter determines the operation mode when the AC motor drive restarts from a
momentary power loss.
The power connected to the drive may power off momentarily due to many reasons. This function
allows the drive to keep outputting after power is on again after power off and won't cause drive
stops.
Setting 1: Operation continues after momentary power loss, speed search starts with the Master
Frequency reference value after drive output frequency and motor rotator speed is synchronous.
The motor has the characteristics of big inertia and small obstruction. For example, in the
equipment with big inertia wheel, it doesn't need to wait to execute operation command until
wheel is complete stop after re-start to save time.
Setting 2: Operation continues after momentary power loss, speed search starts with the master
frequency after drive output frequency and motor rotator speed is synchronous. The motor has
the characteristics of small inertia and bigger obstruction.
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Output frequen cy
01-09
Minimum
out put
frequen cy
Run /Stop
1: Speed search for last frequency command
2: Speed search for the minimum output frequency
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Chapter 11 Description of Parameter Settings|C200 Series
DC Br ak Time
07-04
during St opping
Star t- point for
DC br ake
time during
stopping
OFF
ON
DC Brake Time
11-101
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Time
Factory Setting: 0
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