L: Protection Functions - YASKAWA L1000V Technical Manual

u L: Protection Functions
L parameters provide protection to the drive and motor, including control during momentary power loss, Stall
Prevention, frequency detection, fault reset, overtorque detection, torque limits, and other types of hardware protection.
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L1: Motor Protection
No. (Addr.) Name
L1-01 Motor Overload Protection
(480H) Selection
L1-02
Motor Overload Protection Time
(481H)
L1-13 Continuous Electrothermal
(46DH) Operation Selection
<5> Default setting is determined by the control mode (A1-02).
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L2: Undervoltage Detection
No. (Addr.) Name
L2-05 Undervoltage Detection Level
(489H) (Uv)
<9> Values shown here are for 200 V class drives. Double the value when using a 400 V class drive.
<15> Default setting value is dependent on the setting for the input voltage (E1-01).
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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
L3-05 Stall Prevention Selection during
(493H) Run
L3-06
Stall Prevention Level during Run
(494H)
<16> The setting value is dependent on the setting for the carrier frequency reduction (L8-38).
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L4: Speed Detection
No. (Addr.) Name
L4-01
Speed Agreement Detection Level
(499H)
L4-02
Speed Agreement Detection Width
(49AH)
L4-03 Speed Agreement Detection Level
(49BH) (+/-)
L4-04 Speed Agreement Detection Width
(49CH) (+/-)
YASKAWA EUROPE SIEP
All Modes
0: Disabled
1: General purpose motor (standard fan cooled)
2: Drive dedicated motor with a speed range of 1:10
3: Vector motor with a speed range of 1:100
All Modes
Sets the motor thermal overload protection (oL1) time.
All Modes
0: Disabled
1: Enabled
All Modes
Sets the DC bus undervoltage trip level.
All Modes
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.
All Modes
Used when L3-01 = 1 or 2. 100% is equal to the drive rated current.
All Modes
Sets the lower limit for Stall Prevention during acceleration as a percentage of drive rated
current.
V/f OLV
0: Disabled. Drive runs at a set frequency. A heavy load may cause speed loss.
1: Decel time 1. Uses the deceleration ramp set to C1-02 while Stall Prevention is performed.
2: Decel time 2. Uses the deceleration ramp set to C1-04 while Stall Prevention is performed.
V/f OLV
Enabled when L3-05 is set to 1 or 2. 100% is equal to the drive rated current.
All Modes
L4-01 sets the speed detection level for digital output functions H2-
L4-02 sets the hysteresis or allowable margin for speed detection.
All Modes
L4-03 sets the speed detection level for digital output functions H2-
L4-04 sets the hysteresis or allowable margin for speed detection.
YASKAWA AC Drive L1000V Technical Manual
Description
Description
Description
Description
= 3, 4, 5.
= 13, 14, 15, 16.
B.3 Parameter Table
Setting Page
common_
TMonly
Default:
<5>
Min: 0 136
Max: 5
common_ Default: 1.0 min
TMonly
Min: 0.1 min 137
Max: 5.0 min
common_
Default: 1
TMonly
Min: 0 138
Max: 1
Setting Page
Default:
common_ <9> <15>
TMonly
Min: 150 Vdc 138
Max: 210 Vdc
<9>
Setting Page
common_
TMonly
Default: 1
Min: 0 138
Max: 2
Default:
common_ <16>
TMonly
Min: 0% 139
Max: 165%
<16>
common_
Default: 50%
TMonly
Min: 0% 139
Max: 100%
common_
TMonly
Default: 1
Min: 0 139
Max: 2
common_ Default:
<16>
TMonly
Min: 30% 140
Max: 165%
Setting Page
Default: 0.0 Hz
Min: 0.0 Hz 140
common_
TMonly Max: 120.0 Hz
Default: 2.0 Hz
Min: 0.0 Hz 140
Max: 20.0 Hz
Default: 0.0 Hz
Min: –120.0 Hz 140
common_
Max: 120.0 Hz
TMonly
Default: 2.0 Hz
Min: 0.0 Hz 140
Max: 20.0 Hz
B
235