Parameter Details
12
12.2 b: APPLICATION
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual 551
■ b5-38 PID SP User Scale for Display
No.
(Hex.)
Name Description
Default
(Range)
b5-38
(01FE)
PID SP User Scale for
Display
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 SP User digits for Display] together.
When b5-20 = 4 [PID Unit Selection = ], the drive applies user-set PID setpoint and display units to U5-01 [PID
Feedback] and U5-04 [PID Setpoint].
■ b5-39 PID SP User digits for Display
No.
(Hex.)
Name Description
Default
(Range)
b5-39
(01FF)
PID SP User digits for
Display
Sets the number of digits to set and show the PID setpoint.
2
(0 - 3)
The drive uses this parameter and b5-38 [PID SP User Scale for Display] together.
When parameter b5-20 = 4 [PID Unit Selection = ], the drive applies user-set PID setpoint and display units to
U5-01 [PID Feedback] and U5-04 [PID Setpoint]
0 : No Decimal Places
1 : 1 Decimal Place
2 : 2 decimal places
3 : 3 Decimal Places
■ b5-40 Fref Mon@PID
No.
(Hex.)
Name Description
Default
(Range)
b5-40
(017F)
Fref Mon@PID
Sets the contents for monitor U1-01 [Frequency Reference] in PID control.
0
(0, 1)
0 : U1-01 with PID Output
Monitor U1-01 shows the frequency reference that was increased or decreased by the PID output.
1 : U1-01 without PID Output
Monitor U1-01 shows the actual frequency reference.
■ b5-47 PID Out Rev Operation Mode
No.
(Hex.)
Name Description
Default
(Range)
b5-47
(017D)
PID Out Rev Operation
Mode
Sets reverse motor rotation when the PID control output is negative.
1
(0, 1)
Set b5-01 = 3 or 4 [PID Enable = 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
When the PID output is negative, the motor will rotate in reverse.
■ b5-53 PID I Ramp Limit
No.
(Hex.)
Name Description
Default
(Range)
b5-53
(0B8F)
RUN
PID I Ramp Limit
Sets the responsiveness of PID control when the PID feedback changes quickly.
0.0 Hz
(0.0 - 10.0 Hz)
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