YASKAWA E7LVD002 Technical Manual page 235

Parameter
Parameter Name
No.
LCD Digital Operator Display
Hunting Prevention Selection
n1-01
Hunt Prev Select
Hunting Prevention Gain Setting
n1-02
Hunt Prev Gain
High-Slip Braking Deceleration
n3-01 Frequency Width
HSB Decel Width
High-Slip Braking Current Limit
n3-02
HSB Current Ref
High-Slip Braking Dwell Time at
n3-03 Stop
HSB DwelTim@ Stp
High-Slip Braking Overload Time
n3-04
HSB OL Time
o1-01 User Monitor Selection
User Monitor Sel
User Monitor Selection After
o1-02 Power-Up
Power-On Monitor
Digital Operator Display Selection
o1-03
Display Scaling
LCD Brightness Adjustment
o1-05
LCD Contrast
** Factory setting changes to "2" when b5-01=1
Table A.1 Parameter List (Continued
Description
Hunting Prev
0: Disabled (Hunting prevention function disabled).
1: Enabled (Hunting prevention function enabled).
If the motor vibrates while lightly loaded, hunting
prevention may reduce the vibration. There is a loss of
responsiveness if hunting prevention is enabled.
Gain setting for the Hunting Prevention Function.
If the motor vibrates while lightly loaded and n1-01=1,
increase the gain by 0.1 until vibration ceases.
If the motor stalls while n1-01=1 decrease the gain by
0.1 until the stalling ceases.
High Slip
Sets how aggressively the drive decreases the output
frequency as it stops the motor. If overvoltage (OV)
faults occur during HSB, this parameter may need to be
increased.
Sets the maximum current to be drawn during a HSB
stop. Higher n3-02 settings will shorten motor stopping
times but cause increased motor current, and therefore
increased motor heating.
Sets the amount of time the Drive will dwell at E1-09
(Minimum Frequency). If this time is set too low, the
machine inertia can cause the motor to rotate slightly
after the HSB stop is complete and the Drive output is
shut off.
Sets the time required for a HSB Overload Fault to
occur when the Drive output frequency does not change
for some reason during a HSB stop. Normally this does
not need to be adjusted.
Monitor Select
Selects which monitor will be displayed upon power-up
when o1-02 = 4.
Selects which monitor will be displayed upon
power-up.
1: Frequency Ref
2: Output Freq
3: Output Current
4: User Monitor (set by o1-01)
Sets the units of the Frequency References (d1-01
through d1-17) and the Frequency Reference Monitor
(U1-01).
0: Hz
1: % (100%. = E1-04)
2 to 39: RPM. (Enter the number of motor poles.)
40 to 39999: User display
Desired set/display value is set at Max.
output frequency.
4 digit number.
The number of digits from the right
the decimal point is displayed.
Example: If "200.0 is displayed at Max. output
frequency, set "12000".
When o1-03≥40 (user units), the unit selected in
o1-09 will be displayed for D1-01 to D1-17, U1-01,
U1-02, and U1-20
Set Value Description
5 LCD display becomes dark
3 Standard setting
1 LCD display becomes light
Parameters A - 23
)
Setting Factory
Range Setting
0 or 1 1
0.00 to 2.50 1.00
1 to 20 5%
100 to 200 150%
0.0 to 10.0 1.0sec
30 to 1200 40sec
6 to 53 6
1 to 4 1**
0 to 39999 0
0 to 5 3
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