YASKAWA Varispeed E7 Instruction Manual And Parameter Description page 221

Related Constants
Con-
stant
Number
b5-01 PI control mode selection
b5-02 Proportional gain (P)
b5-03 Integral (I) time
b5-04 Integral (I) limit
b5-06 PI limit
b5-07 PI offset adjustment
b5-08 PI delay time constant
b5-09 PI output characteristics selection
b5-10 PI output gain
b5-11 PI reverse output selection
Selection of PI feedback signal
b5-12
loss detection
b5-13 PI feedback loss detection level
b5-14 PI feedback loss detection time
b5-15 Sleep function operation level
b5-16 Sleep operation delay time
b5-17 Accel/decel time for PI reference
b5-18 PI Setpoint Selection
b5-19 PI Setpoint
b5-20 PI Setpoint Scaling
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Name
0: Disabled
1: Enabled
3: PI control enabled (frequency reference + PI output)
Sets P-control proportional gain.
P-control is not performed when the setting is 0.00.
Sets I-control integral time in 1-second units.
I-control is not performed when the setting is 0.0.
Sets the I-control limit as a percentage of the maximum
output frequency.
Sets the limit after PI-control as a percentage of the maxi-
mum output frequency.
Sets the offset after PI-control as a percentage of the maxi-
mum output frequency.
Sets the time constant for low pass filter for PI-control out-
puts in 1-second units.
Usually not necessary to set.
Selects forward/reverse direction for PI output.
0: PI output is forward.
1: PI output is reverse
Sets output gain.
0: Limit to 0 when PI output is negative.
1: Reverses when PI output is negative.
Limit to 0 is also active when reverse prohibit is selected by
b1-04.
0: No detection of PI feedback loss.
1: Detection of PI feedback loss.
Operation continues during detection, the fault contact
is not operated.
2: Detection of PI feedback loss.
The motor coasts to stop at detection, and the fault
contact operates.
Sets the PI feedback loss detection level as percentage
using the maximum output frequency as 100%.
Sets the PI feedback loss detection time.
Sets the sleep function start level as a frequency.
Sets the delay time until the sleep function starts.
Sets the accel/decel time for the PI Softstarter (SFS).
0: Disabled
1: Enabled
PI-target value
Sets the unit for b5-19, U1-38 and U1-24
0: 0.01 Hz
1: 0.01% (the maximum output frequency E1-04 is taken as
100%.
2 – 39: rpm, set value is equal to motor poles
40 – 39999: User desired display
Setting
Description
Range
0, 1, 3
25.00
0.0 to
360.0
0.0 to
100.0
0.0 to
100.0
-100.0
+100.0
0.00 to
10.00
0 or 1
0.0 to
0 or 1
0 to 2
0 to 100
0.0 to
0.0 to
200.0
0.0 to
0.0 to
0 to 1
0.00 to
100.00%
0 to 39999
Sets the display value
for 100 %.
Sets the number of
decimal digits.
Change
Factory during Access
Setting Opera- Level
tion
0 No A
0.00
to 1.00 Yes A
1.0 s Yes A
100.0% Yes A
100.0% Yes A
to 0.0% Yes A
0.00 s Yes A
0 No A
1.0 No A
25.0
0 No A
0 No A
0% No A
1.0 s No A
25.5
0.0 Hz No A
0.0 s No A
25.5
0.0 s No A
25.5
0 No A
0 Yes A
0 No A