YASKAWA Z1000 CIMR-ZU*A Series, User Manual

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L3: Stall Prevention
No.
(Addr.
Hex)
Name LCD Display Description Values Page
L3-01
(48F)
Stall Prevention
Selection during
Acceleration
StallP Accel Sel
0: Disabled
1: General purpose
2: Intelligent
0: Disabled.
1: General purpose. Acceleration is paused as long as the
current is above the L3-02 setting.
2: Intelligent. Accelerate in the shortest possible time without
exceeding the L3-02 level.
Note: Setting 2 is not available when using OLV/PM.
Default: 1
Range: 0 to 2
–
L3-02
(490)
Stall Prevention Level
during Acceleration
StallP Accel Lvl
Used when L3-01 = 1 or 2. 100% is equal to the drive rated
current.
Default:
<1>
Min.: 0%
Max.: 150%
<1>
–
L3-03
(491)
Stall Prevention Limit
during Acceleration
StallPAcc LowLim
Sets Stall Prevention lower limit during acceleration when
operating in the constant power range. Set as a percentage of
drive rated current.
Default: 50%
Min.: 0
Max.: 100
–
L3-04
(492)
Stall Prevention
Selection during
Deceleration
StallP Decel Sel
0: Disabled
1: General purpose
2: Intelligent
4: High Flux Brake
5: High Flux Brake2
0: Disabled. Deceleration at the active deceleration rate. An ov
fault may occur.
1: General purpose. Deceleration is paused when the DC bus
voltage exceeds the Stall Prevention level.
2: Intelligent. Decelerate as fast as possible while avoiding ov
faults.
4: Overexcitation Deceleration. Decelerates while increasing
the motor flux
5: Overexcitation Deceleration 2. Adjust the deceleration rate
according to the DC bus voltage.
Default: 1
Range: 0 to 2; 4,
5
<2>
–
L3-05
(493)
Stall Prevention
Selection during Run
StallP Run Sel
0: Disabled
1: Decel time
2: Decel time 2
0: Disabled. Drive runs at a set frequency. A heavy load may
cause speed loss.
1: Decel time 1. Uses the deceleration time set to C1-02 while
Stall Prevention is performed.
2: Decel time 2. Uses the deceleration time set to C1-04 while
Stall Prevention is performed.
Default: 1
Range: 0 to 2
–
L3-06
(494)
Stall Prevention Level
during Run
StallP Run Level
Enabled when L3-05 is set to 1 or 2. 100% is equal to the drive
rated current.
Default:
<1>
Min.: 30%
Max.: 150%
<1>
–
L3-11
(4C7)
Overvoltage
Suppression Function
Selection
OV Inhibit Sel
0: Disabled
1: Enabled
Enables or disables the ov suppression function, which allows
the drive to change the output frequency as the load changes to
prevent an ov fault.
0: Disabled
1: Enabled
Default: 0
Range: 0, 1
–
L3-17
(462)
Target DC Bus Voltage
for Overvoltage
Suppression and Stall
Prevention
DC Bus Reg Level
Sets the desired value for the DC bus voltage during overvoltage
suppression and Stall Prevention during deceleration.
Default: 370 Vdc
<3> <4>
Min.: 150
Max.: 400
<4>
–
L3-20
(465)
DC Bus Voltage
Adjustment Gain
DC Bus P Gain
Determines the proportional gain used by overvoltage
suppression (L3-11 = 1), Single drive KEB 2 (L2-29 = 1), KEB
Ride-Thru 2 (H1-
oo
= 7A or 7B), and Intelligent Stall
Prevention during Deceleration (L3-04 = 2) to control the DC
bus voltage in OLV/PM.
Default:
<5>
Min.: 0.00
Max.: 5.00
–
L3-21
(466)
Accel/Decel Rate
Calculation Gain
Acc/Dec P Gain
Sets the proportional gain used to calculate the deceleration rate
during KEB Ride-Thru, ov suppression function, and Stall
Prevention during deceleration (L3-04 = 2).
Default:
<5>
Min.: 0.00
Max.: 200.00
–
L3-22
(4F9)
Deceleration Time at
Stall Prevention during
Acceleration
PM Acc Stall P T
Sets the deceleration time used for Stall Prevention during
acceleration in OLV/PM.
Default: 0.0 s
Min.: 0.0
Max.: 6000
–
L3-23
(4FD)
Automatic Reduction
Selection for Stall
Prevention during Run
CHP Stall P Sel
0: Lv1 set in L3-06
1: Autom. Reduction
0: Sets the Stall Prevention level set in L3-04 that is used
throughout the entire frequency range.
1: Automatic Stall Prevention level reduction in the constant
output range. The lower limit value is 40% of L3-06.
Default: 0
Range: 0, 1
–
L3-24
(46E)
Motor Acceleration
Time for Inertia
Calculations
Mtr Accel Time
OLV/PM OLV/PM
Sets the time needed to accelerate the uncoupled motor at rated
torque from stop to the maximum frequency.
Default:
<6> <7>
Min: 0.001 s
Max: 10.000 s
–
L3-25
(46F)
Load Inertia Ratio Load Inertia Rat
OLV/PM OLV/PM
Sets the ratio between the motor and machine inertia.
Default: 1.0
Min.: 1.0
Max.: 1000.0
–
B.8 L: Protection Function
314 YASKAWA ELECTRIC TOEP C710616 45F YASKAWA AC Drive – Z1000 User Manual