YASKAWA T1000A Technical Manual page 400

B.3 Parameter Table
No. (Addr.) Name
L3-05 Stall Prevention Selection during
(493H) Run
L3-06
(494H)
Stall Prevention Level during Run
L3-11 Overvoltage Suppression Function
(4C7H) Selection
L3-17
Target DC Bus Voltage for
(462H)
Overvoltage Suppression and Stall
Prevention
L3-22
(4F9H) Deceleration Time at Stall
Prevention during Acceleration
L3-23 Automatic Reduction Selection for
(4FDH) Stall Prevention during Run
L3-26
Additional DC Bus Capacitors
(455H)
L3-27
Stall Prevention Detection Time
(456H)
<4> The upper limit of the setting range is determined by the values set to C6-01 and L8-38.
<15> Values shown here are for 200 V class drives. Double the value when using a 400 V class drive.
<26> Setting range is dependent on the control mode (A1-02). When using OLV/PM, the setting range is 0 to 2 seconds. When using AOLV/PM or
CLV/PM, the setting range is 0 to 1 second.
<41> Changing the input voltage setting in E1-01 will reset this parameter back its default value.
n
L4: Speed Detection
No. (Addr.) Name
L4-01
(499H)
Speed Agreement Detection Level
L4-02
(49AH)
Speed Agreement Detection Width
L4-03
(49BH) Speed Agreement Detection Level
(+/-)
L4-04
(49CH)
Speed Agreement Detection Width
(+/-)
L4-05 Frequency Reference Loss
(49DH) Detection Selection
L4-06 Frequency Reference at Reference
(4C2H) Loss
L4-07 Speed Agreement Detection
(470H) Selection
400
V/f V/f w/PG
OLV/PM AOLV/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 w/PG
OLV/PM AOLV/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.
V/f V/f w/PG
OLV/PM AOLV/PM
Sets the deceleration time used for Stall Prevention during acceleration in OLV/PM.
V/f V/f w/PG
OLV/PM AOLV/PM
0: Sets the Stall Prevention level set in L3-06 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.
All Modes
When DC bus capacitors have been added externally, be sure to add those values to the internal
capacitor table for proper DC bus calculations.
V/f V/f w/PG
OLV/PM AOLV/PM
Sets the time the current must exceed the Stall Prevention level to activate Stall Prevention.
All Modes
L4-01 sets the frequency detection level for digital output functions H2-
L4-02 sets the hysteresis or allowable margin for speed detection.
All Modes
L4-03 sets the frequency detection level for digital output functions H2-
L4-04 sets the hysteresis or allowable margin for speed detection.
All Modes
0: Stop. Drive stops when the frequency reference is lost.
1: Run. Drive runs at a reduced speed when the frequency reference is lost.
All Modes
Sets the percentage of the frequency reference that the drive should run with when the
frequency reference is lost.
All Modes
0: During run only (no detection while drive output is shut off)
1: Detection always enabled.
YASKAWA ELECTRIC SIEP C710616 30B YASKAWA AC Drive T1000A Technical Manual
Description
OLV CLV
CLV/PM
OLV CLV
CLV/PM
OLV CLV
CLV/PM
OLV CLV
CLV/PM
OLV CLV
CLV/PM
Description
= 2, 3, 4, 5.
= 13, 14, 15, 16.
Setting Page
Default: 1
Min: 0 221
Max: 2
Default:
<4>
Min: 30% 221
Max: 150%
<4>
Default: 0
Min: 0 222
Max: 1
Default: 375 Vdc
<15> <41>
222
Min: 150 Vdc
<15>
Max: 400 Vdc
<15>
Default: 0.0 s
Min: 0.0 s 219
Max: 6000.0 s
Default: 0
Min: 0 221
Max: 1
Default: 0 μF
Min: 0 μF
222
Max: 65000 μF
Default: 50 ms
Min: 0 ms 222
Max: 5000 ms
Setting Page
Default: 0.0 Hz
Min: 0.0 Hz 223
Max: 400.0 Hz
<12>
Default:
<34>
Min: 0.0 Hz 223
Max: 20.0 Hz
<13>
Default: 0.0 Hz
Min: –400.0 Hz 223
Max: 400.0 Hz
<14>
Default:
<34>
Min: 0.0 Hz 223
Max: 20.0 Hz
<13>
Default: 0
Min: 0 223
Max: 1
Default: 80.0%
Min: 0.0% 224
Max: 100.0%
Default: 0
Min: 0 224
Max: 1