YASKAWA GA800 Series, Technical Reference

Page: 664 / 1016

12.3 b: Application
664 YASKAWA SIEPC71061737B GA800 Drive Technical Reference
Figure 12.17 Run Wait Time and Output Frequency
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b1-04: Reverse Operation Selection
No.
(Hex.)
Name Description
Default
(Range)
b1-04
(0183)
Reverse Operation Selection
Sets the reverse operation function. Disable reverse operation in fan or pump applications where
reverse rotation is dangerous.
0
(0, 1)
When reverse operation is prohibited, the drive will not accept a Reverse operation command.
0 : Reverse Enabled
The drive will accept a Reverse operation command.
1 : Reverse Disabled
The drive will not accept a Reverse operation command.
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b1-05: Operation Below Minimum Freq
No.
(Hex.)
Name Description
Default
(Range)
b1-05
(0184)
Operation Below Minimum
Freq
Sets the drive operation when the frequency reference decreases to less than the value set in E1-09
[Minimum Output Frequency] .
0
(0 - 3)
0 : Operate at Frequency Reference
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 [DC Injection/Zero SpeedThreshold] 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
[DC Inject Braking Time at Stop] and then turn OFF its output.
Figure 12.18 Operate at the Frequency Reference
1 : Baseblock (Motor Coasts)
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 , the drive will do Zero Speed Control
for the time set in b2-04 .
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV