L: Protection Functions - YASKAWA L1000A Quick Start Manual

B 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. Name
Motor Overload Protection
L1-01
Selection
Motor Overload Protection
L1-02
Time
Motor Overheat Alarm
L1-03
Operation Selection (PTC
<44>
thermistor input)
Motor Overheat Fault
L1-04
Operation Selection (PTC
<44>
thermistor input)
Motor Temperature Input
L1-05
Filter Time (PTC
<44>
thermistor input)
Continuous Electrothermal
L1-13
Operation Selection
<5> Default setting is determined by the control mode (A1-02).
<44> Available in drive software versions PRG: 7017 or later.
L2: Undervoltage Detection
■
No. Name
Undervoltage Detection
L2-05
Level (Uv)
<9> Values shown here are for 200 V class drives. Double the value when using a 400 V class drive. Multiply value by 2.875 for 600 V class drives.
<15> Default setting value is dependent on the setting for the input voltage (E1-01).
190
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
5: PM motor with constant torque characteristics
The drive may not be able to provide protection when multiple motors are used, even
if overload is enabled in L1-01. Set L1-01 to 0 and install separate thermal relay to
each motor.
Sets the motor thermal overload protection (oL1) time.
Sets operation when the motor temperature analog input (H3-02 or H3-10 = E)
exceeds the oH3 alarm level.
0: Ramp to stop
1: Coast to stop
2: Emergency Stop (Fast Stop) (decelerate to stop using the deceleration time in
C1-09)
3: Alarm only ("oH3" will flash)
Sets stopping method when the motor temperature analog input (H3-02 or H3-10 = E)
exceeds the oH4 fault level.
0: Ramp to stop
1: Coast to stop
2: Emergency Stop (Fast Stop) (decelerate to stop using the deceleration time in
C1-09)
Adjusts the filter for the motor temperature analog input (H3-02 or H3-10 = E).
0: Disabled
1: Enabled
Sets the DC bus undervoltage trip level.
YASKAWA ELECTRIC TOEP C710616 38H YASKAWA AC Drive-L1000A Quick Start Guide
Description
Description
Setting
Default:
<5>
Min: 0
Max: 5
Default: 1.0 min
Min: 0.1 min
Max: 5.0 min
Default: 3
Min: 0
Max: 3
Default: 1
Min: 0
Max: 2
Default: 0.20 s
Min: 0.00 s
Max: 10.00 s
Default: 1
Min: 0
Max: 1
Setting
Default:
<9> <15>
Min: 150 Vdc
Max: 210 Vdc
<9>