YASKAWA iQpump1000 User Manual page 391

No.
(Addr. Name
Hex)
Overvoltage
L3-11
Suppression Function
(04C7)
Selection
Target DC Bus Voltage
L3-17 for Overvoltage
(0462) Suppression and Stall
Prevention
L3-20 DC Bus Voltage
(0465) Adjustment Gain
L3-21 Accel/Decel Rate
(0466) Calculation Gain
Automatic Reduction
L3-23
Selection for Stall
(04FD)
Prevention during Run
Motor Acceleration
L3-24
Time for Inertia
(046E)
Calculations
L3-25
Load Inertia Ratio
(046F)
L3-26 Additional DC Bus
(0455) Capacitors
L3-27 Stall Prevention
(0456) Detection Time
Speed Agree Width at
L3-35 Intelligent Stall
(0747) Prevention during
Deceleration
<1> Upper limit is dependent on parameter L8-38, Frequency Reduction Selection.
<2> Default setting is dependent on parameter E1-01, Input voltage Setting.
<3> Values shown are specific to 200 V class drives. Double the value for 400 V class drives. Multiply the value by 2.875 for 600 V class drives, but
set the value below 1040 Vdc (overvoltage protection level).
<4> Parameter value changes automatically if E2-11 is manually changed or changed by Auto-Tuning.
<5> Default setting is dependent on parameter o2-04, Drive Model Selection.
u
L4: Speed Detection
No.
(Addr. Name
Hex)
L4-01 Speed Agreement
(0499) Detection Level
L4-02 Speed Agreement
(049A) Detection Width
L4-03 Speed Agreement
(049B) Detection Level (+/-)
YASKAWA TOEP YAIP1W 01F YASKAWA AC Drive - iQpump1000 User Manual
LCD Display
Enables or disables the ov suppression function, which allows
OV Inhibit Sel the drive to change the output frequency as the load changes to
0: Disabled prevent an ov fault.
1: Enabled 0: Disabled
1: Enabled
Sets the desired value for the DC bus voltage during overvoltage
suppression and Stall Prevention during deceleration.
DC Bus Reg Level
Sets the proportional gain for KEB Ride-Thru, Stall Prevention,
and overvoltage suppression.
DC Bus P Gain
Sets the proportional gain used to calculate the deceleration rate
Acc/Dec P Gain during KEB Ride-Thru, ov suppression function, and Stall
Prevention during deceleration (L3-04 = 2).
V/f V/f
CHP Stall P Sel
0: Sets the Stall Prevention level set in L3-06 that is used
0: Lv1 set in L3-06
throughout the entire frequency range.
1: Autom. Reduction
1: Automatic Stall Prevention level reduction in the constant
output range. The lower limit value is 40% of L3-06.
Sets the time needed to accelerate the uncoupled motor at rated
torque from stop to the maximum frequency.
Mtr Accel Time
Sets the ratio between the motor and machine inertia.
Load Inertia Rat
When DC bus capacitors have been added externally, be sure to
ExtDC busCapSize add those values to the internal capacitor table for proper DC
bus calculations.
Sets the time the current must exceed the Stall Prevention level
Stl Prev DetTime to activate Stall Prevention.
Sets the width of the speed agree when L3-04 = 2 (Intelligent
Stall Prevention during deceleration) in units of 0.01 Hz.
There is normally no need to change this parameter from the
IntDecSpdAgrWdth
default value.
Note:
LCD Display
L4-01 sets the frequency detection level for digital output
Spd Agree Level functions H2-oo = 2, 3, 4, 5.
L4-02 sets the hysteresis or allowable margin for speed
Spd Agree Width detection.
L4-03 sets the frequency detection level for digital output
Spd Agree Lvl+- functions H2-oo = 13, 14, 15, 16.
Description
This parameter is not available in models 4A0930
and 4A1200.
Description
B.9 L: Protection Function
Values Page
Default: 0
Range: 0, 1
Default: 375 Vdc
<2> <3>
Min.: 150
<3>
Max.: 400
Default: 1.00
(V/f)
0.30 (OLV)
Min.: 0.00
Max.: 5.00
Default: 1.00
Min.: 0.10
Max.: 10.00
Default: 0
Range: 0, 1
<4> <5>
Default:
Min: 0.001 s
Max: 10.000 s
Default: 1.0
Min.: 1.0
Max.: 1000.0
Default: 0 μF
Min: 0
Max: 65000
Default: 50 ms
Min.: 0
Max.: 5000
Default: 0.00 Hz
Min.: 0.00
Max.: 1.00
Values Page
Default: 0.0 Hz
Min.: 0.0
Max.: 400.0
Default: 2.0
Min.: 0.0
Max.: 20.0
Default: 0.0 Hz
Min.: -400.0
Max.: 400.0
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