Parameter Details
11
11.3 b: Application
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual 735
■ b5-37: PID High Feedback Detection Time
No.
(Hex.)
Name Description
Default
(Range)
b5-37
(01A2)
PID High Feedback
Detection Time
Sets the length of time that the feedback signal must be more than the level
set in b5-36 [PID High Feedback Detection Lvl] to cause Excessive PID
Feedback [FbH].
1.0 s
(0.0 - 25.5 s)
■ b5-38: PID User Unit Display Scaling
No.
(Hex.)
Name Description
Default
(Range)
b5-38
(01FE)
PID User Unit
Display Scaling
Sets the display for U5-01, U5-04 when the drive operates at the maximum
output frequency.
Determined by b5-20
(1 - 60000)
The drive uses this parameter and b5-39 [PID User Unit Display Digits] together.
When b5-20 = 3 [PID Unit Selection = User Units], the drive applies user-set PID setpoint and display units to
U5-01 [PID Feedback] and U5-04 [PID Setpoint].
■ b5-39: PID User Unit Display Digits
No.
(Hex.)
Name Description
Default
(Range)
b5-39
(01FF)
PID User Unit
Display Digits
Sets the number of digits to set and show the PID setpoint.
Determined by b5-20
(0 - 3)
The drive uses this parameter and b5-38 [PID User Unit Display Scaling] together.
When parameter b5-20 = 3 [PID Unit Selection = User Units], the drive applies user-set PID setpoint and display
units to U5-01 [PID Feedback] and U5-04 [PID Setpoint]
0 : No Decimal Places (XXXXX)
1 : One Decimal Places (XXXX.X)
2 : Two Decimal Places (XXX.XX)
3 : Three Decimal Places (XX.XXX)
■ b5-40: Frequency Reference Monitor @PID
No.
(Hex.)
Name Description
Default
(Range)
b5-40
(017F)
Frequency Reference
Monitor @PID
Sets the contents for monitor U1-01 [Frequency Reference] in PID control.
0
(0, 1)
0 : U1-01 Includes PID Output
Monitor U1-01 shows the frequency reference that was increased or decreased by the PID output.
1 : U1-01 Excludes PID Output
Monitor U1-01 shows the actual frequency reference.
■ b5-47: PID Trim Mode Output Reverse Sel
No.
(Hex.)
Name Description
Default
(Range)
b5-47
(017D)
PID Trim Mode
Output Reverse Sel
Sets reverse motor rotation when the PID control output is negative.
1
(0, 1)
Set b5-01 = 3 or 4 [PID Mode Setting = Fref + PID Trim, Fref + PID Trim (D on feedback)] to enable this
parameter.
0 : Lower Limit is Zero
When PID output is negative, PID output is limited to 0 and drive output is shut off.
1 : Negative Output Accepted
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