12.2 b: APPLICATION
450 SIEPCYEUOQ2V01A Q2V Technical Manual
■ b1-06: Double Scan DI Inputs Select
No.
(Hex.)
Name Description
Default
(Range)
b1-06
(0185)
Double Scan DI Inputs
Select
Sets the number of times that the drive reads the sequence input command to prevent malfunction
because of noise.
2
(1, 2)
1 : Single Scan
The drive reads the terminal status one time. The drive immediately reads all changes to the terminal status.
This setting lets the drive quickly respond to changes in the sequence, but noise can cause malfunction.
2 : Double Scan
The drive reads the terminal status two times. The drive reads all changes to the terminal status two times to make
sure that the reading is the same.
The drive responds slower than when it reads the sequence one time, but this setting prevents malfunction because
of noise.
■ b1-07: LO/RE Run Selection
No.
(Hex.)
Name Description
Default
(Range)
b1-07
(0186)
LO/RE Run Selection
Sets drive response to an existing Run command when the drive receives a second Run command
from a different location.
1
(1, 2)
This parameter interlocks the drive to help prevent accidents that can occur if the motor starts to rotate because the
Run command source changed.
To switch the RUN command source, push on the keypad or set H1-xx = 11, 9 [MFDI Function Select =
LOC/REM Sel., Ext Ref 1/2] and activate/deactivate the terminal.
1 : Cycle RUN
If a Run command is enabled when you switch between Run command sources, the drive will not operate the
motor.
When the drive is operating the motor, turn OFF the Run command to stop the motor. Enter the Run command
again to start operation.
2 : Accept RUN
If a Run command is enabled when you switch between Run command sources, the drive will start to operate the
motor or continue to operate the motor.
WARNING! Sudden Movement Hazard. When you use a 3-Wire sequence, set A1-03 = 3330 [Init Parameters = 3-Wire
Initialization] and make sure that b1-17 = 1 [RUN@PowerUp Selection = Disregard RUN] (default). If you do not correctly set
the drive parameters for 3-Wire operation before you energize the drive, the motor can suddenly rotate in reverse when you
energize the drive.
■ b1-08: RUN@PRG Mode Selection
No.
(Hex.)
Name Description
Default
(Range)
b1-08
(0187)
RUN@PRG Mode
Selection
Sets the conditions for the drive to accept a Run command entered from an external source when
using the keypad to set parameters.
1
(1 - 3)
As a safety precaution, when the drive is in Programming Mode, it will not respond to a Run command.
This parameter helps prevent accidents that can occur if the motor starts to rotate because the drive received a Run
command from an external source while the user is programming the drive. You can also set the drive to not show
the Programming Mode when a Run command is active.
1 : NoRUN@Program
The drive rejects the Run command while in Programming Mode.
2 : RUN@Program
The drive accepts a Run command entered from an external source while in Programming Mode.
3 : Program@Stop only
The drive does not let the user enter Programming Mode when the drive is operating. The drive does not show the
Programming Mode when a Run command is active.
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