YASKAWA U1000 - Page 551

No.
(Addr.
Hex)
Name LCD Display Description Values Page
L3-03
(0491)
Stall Prevention Limit
during Acceleration/
Deceleration
StallPAcc LowLim
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG OLV
Sets Stall Prevention lower limit during acceleration/deceleration
when operating in the constant power range. Set as a percentage
of drive rated current.
Default: 50%
Min.: 0
Max.: 100
317
L3-04
(0492)
Stall Prevention
Selection during
Deceleration
StallP Decel Sel
0: Disabled
1: General Purpose
4: High Flux Brake
6: iLim Mode
All Modes
0: Disabled. Deceleration at the active deceleration rate. An ov
fault may occur.
1: General purpose. Deceleration is paused when the output
current exceeds the Stall Prevention level.
4: Overexcitation Deceleration. Decelerates while increasing the
motor flux.
6: Enable (Current Limit). The deceleration rate is automatically
adjusted while limiting the regeneration current at the setting
value of the stall prevention level (L3-14).
Default: 1
Range: 0 to 6
<2>
318
L3-05
(0493)
Stall Prevention
Selection during Run
StallP Run Sel
0: Disabled
1: Decel Time 1
2: Decel Time 2
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PGV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG
0: Disabled. Drive runs at a set frequency. A heavy load may
cause stalling.
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
319
L3-06
(0494)
Stall Prevention Level
during Run
StallP Run Level
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PGV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG
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>
319
L3-14
(04E9)
Stall Prevention Level
during Deceleration
StallP Decel Lvl
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG OLV
Used when L3-04 = 1 or 6. 100% is equal to the drive rated
current.
Default:
<1>
Min.: 80%
Max.: 200%
<1>
317
L3-22
(04F9)
Deceleration Time at
Stall Prevention during
Acceleration
PM Acc Stall P T
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
OLV/PM
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
OLV/PM
Sets the deceleration time used for Stall Prevention during
acceleration in OLV/PM.
Default: 0.0 s
Min.: 0.0
Max.: 6000.0
319
L3-23
(04FD)
Automatic Reduction
Selection for Stall
Prevention during Run
CHP Stall P Sel
0: Lv1 set in L3-06
1: Autom. Reduction
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f V/f w PG
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
319
L3-27
(0456)
Stall Prevention
Detection Time
Stl Prev DetTime
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PGV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG
Sets the time the current must exceed the Stall Prevention level
to activate Stall Prevention.
Default: 50 ms
Min.: 0
Max.: 5000
320
L3-36
(11D0)
Vibration Suppression
Gain during
Acceleration (with
Current Limit)
ILim Acc Gain
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f V/f w PG OLV
Increase the setting value if oscillation occurs in the output
current during acceleration.
Default:
<3>
Min.: 0.0
Max.: 100.0
320
L3-39
(11D3)
Current-limited Integral
Time Constant during
Acceleration
ILim Acc I Time
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f V/f w PG OLV
Sets the time constant for acceleration rate adjustment for current-
limited acceleration.
Default: 100.0
ms
Min.: 1.0
Max.: 1000.0
320
L3-40
(11D6)
Current-limited
Maximum S-curve
Selection during
Acceleration
ILimAcc S-Curve
0: Disable
1: Enable
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f V/f w PG OLV
0: Disable
1: Enable
Default: 0
Range: 0, 1
320
B.10 L: Protection Function
YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual
551
B
Parameter List