YASKAWA U1000 Series Technical Manual page 509

No. (Addr.) Name
L2-07 Momentary Power Loss Voltage
(48BH) Recovery Acceleration Time
L2-13 Power Supply Frequency Fault
(4F7H) Detection Gain
L2-21
Low Input Voltage Detection Level
(4F7H)
L2-27 Power Supply Frequency Fault
(4F7H) Detection Width
<9> Default setting is determined by the drive model (o2-04) and duty selection (C6-01).
<12> Setting range value is dependent on the units selected for the accel/decel time (C1-10). When C1-10 = 0 (units of 0.01 s), the setting range
becomes 0.00 to 600.00 s.
<18> Values shown here are for 200 V class drives. Double the value when using a 400 V class drive.
L3: Stall Prevention
■
No. (Addr.) Name
L3-01 Stall Prevention Selection during
(48FH) Acceleration
L3-02 Stall Prevention Level during
(490H) Acceleration
L3-03 Stall Prevention Limit during
(491H) Acceleration/Deceleration
L3-04 Stall Prevention Selection during
(492H) Deceleration
L3-05 Stall Prevention Selection during
(493H) Run
L3-06
Stall Prevention Level during Run
(494H)
L3-14 Stall Prevention Level during
(4E9H) Deceleration
L3-22 Deceleration Time at Stall
(4F9H) Prevention during Acceleration
L3-23 Automatic Reduction Selection for
(4FDH) Stall Prevention during Run
YASKAWA ELECTRIC SIEP C710636 02B YASKAWA U1000 Technical Manual
All Modes
Sets the time to accelerate to the frequency reference when momentary power loss is over. If set
to 0.0, the active acceleration time (C1-01, C1-03, C1-05, or C1-07) is used.
All Modes
Set the gain to use to detect power supply frequency fault (Fdv).
All Modes
Set the level at which to detect a low input voltage.
All Modes
There is normally no need to change this parameter from the default value. Set the frequency
width to use to detect power supply frequency fault (Fdv).
V/f V/f w/PG
OLV/PM AOLV/PM
0: Disabled
1: Enabled
General purpose. Acceleration is paused when the current is above the L3-02 setting.
3: Enabled (Current Limit)
The acceleration rate is automatically adjusted while limiting the output current at the setting
value of the stall prevention level (L3-02).
Note: Setting 3 is not available in OLV/PM.
V/f V/f w/PG
OLV/PM AOLV/PM
Used when L3-01 = 1, 3. 100% is equal to the drive rated current.
V/f V/f w/PG
OLV/PM AOLV/PM
Sets Stall Prevention lower limit during acceleration/Deceleration when operating in the
constant power range. Set as a percentage of the drive's rated current.
All Modes
0: Disabled
Deceleration at the active deceleration rate. An ov fault may occur.
1: General-purpose Stall Prevention
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).
V/f V/f w/PG
OLV/PM AOLV/PM
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.
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.
V/f V/f w/PG
OLV/PM AOLV/PM
Used when L3-04 = 1 or 6. 100% is equal to the drive rated current.
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.
Description
Description
OLV CLV
CLV/PM
OLV CLV
CLV/PM
OLV CLV
CLV/PM
OLV
CLV
CLV/PM
OLV CLV
CLV/PM
OLV CLV
CLV/PM
OLV CLV
CLV/PM
OLV
CLV
CLV/PM
B.3 Parameter Table
Setting Page
Default: 0.00 s
Min: 0.00 s 302
Max: 6000.0 s
<12>
Default: 1.0
Min: 0.1 303
Max: 2.0
Default: Determined by
o2-04, C6-01
303
Min: 100 V
<18>
Max: 200 V
<18>
Default: 6.0 Hz
Min: 3.0 Hz 303
Max: 20.0 Hz
Setting Page
Default: 1
Min: 0 303
Max: 3
Default:
<35>
Min: 0% 305
Max: 150%
<35>
Default: 50%
Min: 0% 305
Max: 100%
Default: 1
Min: 0 305
Max: 6
<34>
Default: 1
Min: 0 306
Max: 2
Default:
<35>
Min: 30% 307
Max: 150%
<35>
Default:
<35>
Min: 100% 305
Max: 200%
<35>
Default: 0.0 s
Min: 0.0 s 307
Max: 6000.0 s
Default: 0
Min: 0 307
Max: 1
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