Yaskawa iQpump Manual Supplement - Manual (Page 69)

YASKAWA TM.iQp.10 Technical Manual Supplement 69
L8-15 04BB
OL2 Characteristic
Selection at Low Speeds
OL2 Sel @ L-Spd
This parameter assists in protecting the output transistor junctions from
overheating when output current is high and output frequency is low.
0: Disabled
1: Enabled (L8-18 is active)
0 ~ 1 1 Programming
L8-18 04BE
Soft CLA Selection
Soft CLA Sel
Enables and disables current limit “A”.
0: Disabled
1: Enabled
0 ~ 1 1 Programming
L8-19 04BF
OH Frequency Reference
Reduction Level
Fref During OH
Sets the amount of frequency reference reduction when an Overheat Pre-
alarm (OH) is detected. 0.0 ~
100.0 %
20.0 % Programming
Hunting Prevention
n1-01 0580
Hunting Prevention
Selection
Hunt Prev Select
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.
0 ~ 1 1 Programming
n1-02 0581
Hunting Prevention Gain
Setting
Hunt Prev Gain
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.
0.00 ~ 2.50 1.00 Programming
High-Slip Braking
n3-01 0588
High-Slip Braking
Deceleration Frequency
Width
HSB Decel Width 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.
Note: Function Deactivated
1.0 ~
20.0 %
5 % Programming
n3-02 0589
High-Slip Braking Current
Limit
HSB Current Ref
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.
Note: Function Deactivated
100.0 ~
200.0 %
150 % Programming
n3-03 058A
High-Slip Braking Dwell
Time at Stop
HSB DwelTim@ Stp
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 drive output is
shut off.
Note: Function Deactivated
0.00 ~
10.0 sec
1.0 sec Programming
n3-04 058B
High-Slip Braking
Overload Time
HSB OL Time
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.
Note: Function Deactivated
30.0 ~
1200.0 sec
40 sec Programming
Monitor Select
o1-01

0500
User Monitor Selection
User Monitor Sel Selects which monitor will be displayed upon power-up when
o1-02 = 4.
6 ~ 94 6 Programming
o1-02 0501
User Monitor Selection
After Power-Up
Power-On Monitor
Selects which monitor will be displayed upon power-up.
1: Auto: Set-point
2: Output Freq
3: Output Current
4: User Monitor (set by o1-01)
1 ~ 4 1 Programming
o1-05 0504
LCD Brightness
Adjustment
LCD Contrast
0 ~ 5 3 Programming
o1-06 0517
User Monitor Selection
Mode
Monitor Mode Sel
Selects the “U1” monitors displayed on the 4th and 5th lines of the digital
operator display.
0: 3 Mon Sequential (Displays the next 2 sequential U1 monitors.)
1: 3 Mon Selectable (Displays U1 monitors set by o1-07 and o1-08.)
0 ~ 1 1** Programming
 Denotes that parameter can be changed when the drive is running.
Parameter
No.
Addr.
Hex
Parameter Name
Digital Operator
Display
Description
Setting
Range
Factory
Setting
Menu
Location
Set Value Description
5 LCD display becomes dark
3 Standard setting
1 LCD display becomes light