Omron V1000 User Manual page 108

Setting 9: Simple Positioning Stop
This method of stopping the motor always decelerates the same distance to stop as shown in
distance S1 is calculated using the maximum output frequency setting E1-04 and the selected deceleration time. If the
drive is stopped from a frequency lower than the maximum speed it keeps the current speed. When the distance traveled
becomes equal to S1 - S2, the drive decelerates to stop using the current deceleration time. The stopping accuracy can be
adjusted using the positioning gain set in parameter d4-12.
Motor speed
Max. output
frequency
Run command
Precautions when using Simple Positioning:
• Changing the deceleration time during the deceleration will result in inaccurate positioning as the calculation considers
the deceleration time that was active only when the Run command was removed.
• The Dwell function must be deactivated (b6-03 and b6-04 = 0).
• The KEB function can not be used (H1- must be different than 65/66/7A/7B).
• The Stall Prevention during stop must be deactivated (L3-04 = 0). For regenerative loads a braking option might be
necessary.
• The overvoltage suppression must be disabled (L3-11 = 1).
• High Slip Braking must be deactivated (H1- must be different from 68).
• The S-curves at deceleration start and deceleration end must be inactive (C2-03/04 = 0).
n b1-04: Reverse Operation Selection
For some applications, reverse motor rotation is not appropriate and may even cause problems (e.g., air handling units,
pumps, etc.). Setting parameter b1-04 to 1 instructs the drive to ignore any Reverse run commands.
No.
b1-04
Setting 0: Reverse Operation Enabled
Possible to operate the motor in both forward and reverse directions.
Setting 1: Reverse Operation Disabled
Drive disregards a Reverse run command or a negative frequency reference.
n b1-07: LOCAL/REMOTE Run Selection
The drive has the following three separate control sources that can be switched using digital inputs or the LO/RE key on
the digital operator (for details
Reference 1/2 Selection on page 161
214):
SIEP C710606 20 OYMC AC Drive - V1000 User Manual
Operation wait time t
Selected
decel time
Minimum
Baseblock Time
(L2-03)
Min. output
frequency
Figure 5.9 Operation Wait Time Depending on Output Frequency
Normal Deceleration
Deceleration
distance
S1
S2
t
Set deceleration time
Figure 5.10 Simple Positioning Deceleration
Parameter Name
Reverse Operation Selection
Refer to Setting 1: LOCAL/REMOTE Selection on page
and Refer to o2-01: LO/RE (LOCAL/REMOTE) Key Function Selection on page
100%
Output frequency
(Max. output
when Stop command
frequency)
is entered
Simple Positioning
Motor speed
Deceleration
Max. output
distance
frequency
S1
Set deceleration time
Run command
Setting Range
5.2 b: Application
Figure 5.10. The stopping
S1
t
Default
0 or 1 0
161, Refer to Setting 2: External
5
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