B.3 Parameter Table
♦ 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.
■ L1: Motor Protection
No. (Addr.)
Name
|
Description
Setting
Page
L1-01
(480H)
Motor Overload Protection
Selection
1
Default: <5>
Min: 0
Max: 5
189
I All Modes
0
1
2
3
5
: Disabled
: General purpose motor (standard fan cooled)
: Drive dedicated motor with a speed range of 1:10
: Vector motor with a speed range of 1:100
: PM motor with constant torque characteristics
L1-02
(481H)
Motor Overload Protection Time
1
Default: 1.0 min
Min: 0.1 min
Max: 5.0 min
191
1 All Modes
| Sets the motor thermal overload protection (oL 1) time.
L1-13
(46D H )
Continuous Electrothermal
Operation Selection
1
Default: 1
Min: 0
Max: 1
191
1 All Modes
0: Disabled
1: Enabled
<5> D efault setting is determined by the control mode (A1-02).
■ L2: Undervoltage Detection
No. (Addr.)
Name
Description
Setting
Page
L2-05
(489H)
Undervoltage Detection Level
(U v)
Sets the D C bus undervoltage trip level.
Default: <9> <15>
Min: 150 Vdc
Max: 210 Vdc <9>
191
<9> Values shown here are for 200 V class drives. Double the value when using a 400 V class drive.
<15> D efault setting value is dependent on the setting for the input voltage (E1-01).
■ L3: Stall Prevention
No. (Addr.)
Name
L3-01
(48FH)
Stall Prevention Selection during
Acceleration
L3-02
(490H)
Stall Prevention L evel during
Acceleration
L3-05
(493H)
Stall Prevention Selection during
Run
L 3-06
(494H)
Stall Prevention L evel during Run
Description
CLV
■
CLV/PM
Disabled.
General purpose. Acceleration is paused as long as the current is above the L3-02 setting.
Intelligent. Accelerate in the shortest possible tim e without exceeding the L 3-02 level.
Setting
Page
Default: 1
Min: 0
192
Max: 2
Default: <16>
Min: 0%
192
Max: 150% <16>
Default: 1
Min: 0
193
Max: 2
Default: <16>
Min: 30%
193
Max: 150% <16>
CLV
■
CLV/PM
U sed when L3-01 = 1 or 2. 100% is equal to the drive rated current.
CLV
■
CLV/PM
Disabled. Drive runs at a set frequency. A heavy load may cause speed loss.
D ecel tim e 1. U ses the deceleration ramp set to C1-02 w hile Stall Prevention is performed.
D ecel tim e 2. U ses the deceleration ramp set to C 1-04 w hile Stall Prevention is performed.
CLV
В
CLV/PM
Enabled when L 3-05 is set to 1 or 2. 100% is equal to the drive rated current.
V/f
V/f
V/f
V/f
<16> The setting value is dependent on the setting for the carrier frequency reduction (L8-38).
■ L4: Speed Detection
No. (Addr.)
Name
|
Description
Setting
Page
L4-01
(499H)
Speed Agreem ent Detection Level
I All Modes
Default: 0.0%
Min: 0.0%
Max: 100.0%
193
L4-02
(49A H )
Speed Agreement Detection Width
L4-01 sets the speed detection level for digital output functions H 2 -D D = 3, 4, 5.
L 4-02 sets the hysteresis or allowable margin for speed detection.
Default: 4.0%
Min: 0.0%
Max: 40.0%
193
L4-03
(49B H )
Speed Agreem ent Detection Level
(+/-)
1 All Modes
Default: 0.0%
Min: -100.0%
Max: 100.0%
193
L 4-04
(49CH)
Speed Agreement Detection Width
(+/-)
L4-03 sets the speed detection level for digital output functions H 2 -D D = 13, 14, 15, 16.
L 4-04 sets the hysteresis or allowable margin for speed detection.
Default: 4.0%
Min: 0.0%
Max: 40.0%
193
L4-05
(49D H )
Speed Reference Loss Detection
Selection
1
0
1
: Stop. D rive st
: Run. Drive ru
ops when the speed reference is lost.
ns at a reduced speed when the speed reference is lost.
Default: 0
Min: 0
Max: 1
194
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YASKAWA ELECTRIC SIEP C710616 33D YASKAWA AC Drive L1000A Technical Manual