L3: Stall Prevention - YASKAWA A1000 HHP Programming Manual

A.10 L: Protection Function
<2> Default setting is dependent on parameter E1-01, Input voltage Setting.
<3> Values shown are specific to 400 V class drives. Multiply the value by 1.4375 for 575 V class drives. Multiply the value by 1.725 for 690 V class
drives.
<4> Setting range value is dependent on parameter C1-10, Accel/Decel Time Setting Units. When C1-10 = 0 (units of 0.01 seconds), the setting range
becomes 0.00 to 600.00 seconds.
<5> Values shown are specific to 400 V class drives. Multiply the value by 1.4375 for 575 V class drives. Multiply the value by 1.725 for 690 V class
drives.
u

L3: Stall Prevention

No.
(Addr. Name
Hex)
L3-01 Stall Prevention Selection
(48F) during Acceleration
L3-02 Stall Prevention Level
(490) during Acceleration
L3-03 Stall Prevention Limit
(491) during Acceleration
L3-04 Stall Prevention Selection
(492) during Deceleration
L3-05 Stall Prevention Selection
(493) during Run
L3-06 Stall Prevention Level
(494) during Run
L3-11 Overvoltage Suppression
(4C7) Function Selection
Target DC Bus Voltage for
L3-17
Overvoltage Suppression
(462)
and Stall Prevention
284
V/f V/f V/f w PG V/f w PG OLV OLV
OLV/PM OLV/PM AOLV/PM CLV/PM
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.
V/f V/f V/f w PG V/f w PG OLV OLV
OLV/PM OLV/PM AOLV/PM CLV/PM
Used when L3-01 = 1 or 2. 100% is equal to the drive rated current.
V/f V/f V/f w PG V/f w PG OLV OLV
OLV/PM OLV/PM AOLV/PM CLV/PM
Sets Stall Prevention lower limit during acceleration when operating in the
constant power range. Set as a percentage of drive rated current.
All Modes
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.
3: Stall Prevention with braking resistor. Stall Prevention during deceleration
is enabled in coordination with dynamic braking.
4: Overexcitation Deceleration. Decelerates while increasing the motor flux.
5: Overexcitation Deceleration 2. Adjust the deceleration rate according to the
DC bus voltage.
Note: Setting 3 is not available in models CIMR-Ao4A0930 and
4A1200. A1000 HHP models only have settings 0, 1, 4, and 5.
V/f V/f V/f V/f V/f w PG V/f w PG V/f w PG V/f w PG OLV OLV
OLV/PM OLV/PM OLV/PM OLV/PM AOLV/PM AOLV/PM CLV/PM CLV/PM
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.
V/f V/f V/f V/f V/f w PG V/f w PG V/f w PG V/f w PG OLV OLV
OLV/PM OLV/PM OLV/PM OLV/PM AOLV/PM AOLV/PM CLV/PM CLV/PM
Enabled when L3-05 is set to 1 or 2. 100% is equal to the drive rated current.
All Modes
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
All Modes
Sets the desired value for the DC bus voltage during overvoltage suppression
and Stall Prevention during deceleration.
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
Description
CLV
CLV
CLV
CLV CLV
CLV CLV
Values Page
Default: 1
140
Range: 0 to 2
<1>
Default:
Min.: 0% 142
<1>
Max.: 150%
Default: 50%
Min.: 0 142
Max.: 100
Default: 1
142
<2>
Range: 0 to 5
Default: 1
143
Range: 0 to 2
<1>
Default:
Min.: 30% 144
<1>
Max.: 150%
Default: 0
144
Range: 0, 1
Default: 370 Vdc
<3> <8>
145
Min.: 150
<8>
Max.: 400