YASKAWA GA800 Technical Reference page 617

No.
Name
(Hex.)
L3-06 Stall Prevent Level during
Run
(0494)
L3-11 Overvoltage Suppression
Select
(04C7)
L3-17 DC Bus Regulation Level
(0462)
L3-20 DC Bus Voltage
Adjustment Gain
(0465)
Expert
L3-21 OVSuppression Accel/
Decel P Gain
(0466)
Expert
L3-22 PM Stall Prevention
Decel Time
(04F9)
L3-23 Stall P Reduction at
Constant HP
(04FD)
L3-24 Motor Accel Time @
Rated Torque
(046E)
Expert
L3-25 Load Inertia Ratio
(046F)
Expert
L3-26 Additional DC Bus
Capacitors
(0455)
Expert
L3-27 Stall Prevention
Detection Time
(0456)
L3-34 Torque Limit Delay Time
(016F)
Expert
L3-35 Speed Agree Width for
Auto Decel
(0747)
Expert
L3-36 Current Suppression
Gain@Accel
(11D0)
L3-37 Current Limit P Gain @
Accel
(11D1)
Expert
YASKAWA SIEPC71061737D GA800 Drive Technical Reference
Description
V/f CL-V/f OLV CLV AOLV
Sets the output current level to enable the Stall Prevention function during operation as a
percentage of the drive rated output current.
Note:
• This parameter is applicable when L3-05 = 1, 2 [Stall Prevention during RUN =
Deceleration Time 1 (C1-02), Deceleration Time 2 (C1-04)].
• The upper limit of the setting range changes when C6-01 [Normal / Heavy Duty
Selection] changes.
–150% when C6-01 = 0 [Heavy Duty Rating 1 (HD1) for Constant Torque
Applications].
–110% when C6-01 = 1 [Normal Duty Rating 1 (ND1) for Variable Torque
Applications].
V/f CL-V/f OLV CLV AOLV
Sets the overvoltage suppression function.
0 : Disabled
1 : Enabled
V/f CL-V/f OLV CLV AOLV
Sets the target value for the DC bus voltage when the overvoltage suppression function and
the Decel Stall Prevention function (Intelligent Stall Prevention) are active.
V/f CL-V/f OLV CLV AOLV
Sets the proportional gain used to control the DC bus voltage.
V/f CL-V/f OLV CLV AOLV
Sets the proportional gain to calculate acceleration and deceleration rates.
V/f CL-V/f OLV CLV AOLV
Sets the momentary deceleration time that the drive will use when it tries to accelerate a
PM motor and detected motor stalls. This function is applicable when L3-01 = 1 [Stall
Prevention during Accel = Enabled].
V/f CL-V/f OLV CLV AOLV
Sets the function to automatically decrease the Stall Prevention Level during Run for
Constant Horse Power (CHP) part of the speed range.
0 : Use L3-06 for Entire Speed Range
1 : Automatic Reduction @ CHP Region
V/f CL-V/f OLV CLV AOLV
Sets the motor acceleration time to reach the maximum frequency at the motor rated torque
for stopped single-drive motors.
V/f CL-V/f OLV CLV AOLV
Sets the ratio between motor inertia and machine inertia.
V/f CL-V/f OLV CLV AOLV
Sets the capacity for external main circuit capacitors. Usually it is not necessary to change
this setting. Sets this parameter when you use the KEB Ride-Thru function.
V/f CL-V/f OLV CLV AOLV
Sets a delay time between reaching the Stall Prevention level and starting the Stall
Prevention function.
V/f CL-V/f OLV CLV AOLV
Sets the filter time constant that returns the torque limit to its initial value when KEB
operation operates in Single Drive KEB Ride-Thru mode.
V/f CL-V/f OLV CLV AOLV
Sets the width for speed agreement when L3-04 = 2 [Stall Prevention during Decel =
Intelligent (Ignore Decel Ramp)]. Usually it is not necessary to change this setting.
V/f CL-V/f OLV CLV AOLV
Sets the gain to suppress current and motor speed hunting during operation when L3-01 =
3 [Stall Prevention during Accel = Current Limit Method]. Usually it is not necessary to
change this setting.
V/f CL-V/f OLV CLV AOLV
Suppresses current hunting during acceleration. Usually it is not necessary to change this
setting.
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
11.11 L: Protection Functions
Default
Ref.
(Range)
Determined by C6-01 and 980
L8-38
(5 - 150%)
0 981
(0, 1)
200 V Class: 375 V, 981
400 V Class: 750 V
(200 V Class: 150 to 400
V, 400 V Class: 300 to
800 V)
Determined by A1-02 981
(0.00 - 5.00)
Determined by A1-02 981
(0.10 - 10.00)
0.0 s 982
(0.0 - 6000.0 s)
0 982
(0, 1)
Determined by o2-04, 982
C6-01, E2-11, and E5-01
(0.001 - 10.000 s)
1.0 983
(0.1 - 1000.0)
0 μF 983
(0 to 65000 μF)
50 ms 983
(0 - 5000 ms)
Determined by A1-02 984
(0.000 - 1.000 s)
0.00 Hz 984
(0.00 - 1.00 Hz)
Determined by A1-02 984
(0.0 - 100.0)
5 ms 984
(0 - 100 ms)
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