Omron Q2A Series Technical Manual page 521

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b1-04 Reverse Operation Selection
No.
Name
(Hex.)
b1-04 Reverse Operation
Selection
(0183)
When reverse operation is prohibited, the drive will not accept a Reverse operation command.
0 : Enabled
The drive will accept a Reverse operation command.
1 : Disabled
The drive will not accept a Reverse operation command.
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b1-05 Below Min. Freq. Operation
No.
Name
(Hex.)
b1-05 Below Min. Freq. Operation
(0184)
1 : Operate@FRef
When the frequency reference is less than the value set in E1-09, the drive will continue to operate the motor as
specified by the frequency reference.
If the motor speed is less than or equal to the value set in b2-01 [ZSpd/DCI Threshold] when you enter the Stop
command (or deactivate the Run command), the drive will do Zero Speed Control for the time set in b2-04 [DCInj
Time@Stop] and then turn OFF its output.
2 : Baseblock coast
If the frequency reference is less than the value set in E1-09, the drive stops motor voltage output and the motor
coasts to stop. If the motor speed is less than or equal to the value set in b2-01, then the drive will do Zero Speed
Control for the time set in b2-04.
3 : Min. Frequency
The drive operates the motor at the minimum frequency reference set in E1-09 and the Run command is still
enabled.
The drive decelerates the motor when the Stop command is entered (or when the Run command is switched OFF).
If the motor speed falls below or is equal to the value set in b2-01, then the drive will perform Zero Speed Control
for the time set in b2-04.
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
V/f CL-V/f OLV CLV AOLV
Sets the reverse operation function. Disable reverse operation in fan or pump applications where
reverse rotation is dangerous.
V/f CL-V/f OLV CLV AOLV
Sets the drive operation when the frequency reference decreases to less than the value set in E1-09
[Min Output Frequency].
Figure 12.12 Operate at the Frequency Reference
Figure 12.13 Baseblock (Motor Coasts)
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
12.2 b: APPLICATION
Default
(Range)
0
(0, 1)
Default
(Range)
1
(1 - 4)
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