L: Protection Function - YASKAWA A1000 Series Quick Start Manual

B Parameter List

◆ L: Protection Function

L parameters provide protection to the drive and motor, such as: control during momentary power loss, Stall Prevention,
frequency detection, fault restarts, 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
input)
Motor Overheat Fault
L1-04 Operation Selection (PTC
input)
Motor Temperature Input
L1-05
Filter Time (PTC input)
Continuous Electrothermal
L1-13
Operation Selection
<10> Default setting is determined by the control mode (A1-02).
L2: Momentary Power Loss Ride-Thru
■
No. Name
Momentary Power Loss
L2-01
Operation Selection
Momentary Power Loss
L2-02
Ride-Thru Time
Momentary Power Loss
L2-03
Minimum Baseblock Time
Momentary Power Loss
L2-04 Voltage Recovery Ramp
Time
Undervoltage Detection
L2-05
Level (Uv)
162
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
4: PM motor with variable torque
5: PM motor with constant torque control
6: General purpose motor (50 Hz)
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, H3-06, or H3-
10 = E) exceeds the oH3 alarm level.
0: Ramp to stop
1: Coast to stop
2: 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, H3-06,
or H3-10 = E) exceeds the oH4 fault level.
0: Ramp to stop
1: Coast to stop
2: Fast Stop (decelerate to stop using the deceleration time in C1-09)
Adjusts the filter for the motor temperature analog input (H3-02, H3-06, or H3-
10 = E).
0: Disabled
1: Enabled
0: Disabled. Drive trips on (Uv1) fault when power is lost.
1: Recover within the time set in L2-02. Uv1 will be detected if power loss is
longer than L2-02.
2: Recover as long as CPU has power. Uv1 is not detected.
3: KEB deceleration for the time set to L2-02.
4: KEB deceleration as long as CPU has power.
5: KEB deceleration to stop.
Sets the Power Loss Ride-Thru time. Enabled only when L2-01 = 1 or 3.
Sets the minimum wait time for residual motor voltage decay before the drive
output reenergizes after performing Power Loss Ride-Thru.
Increasing the time set to L2-03 may help if overcurrent or overvoltage occur
during Speed Search or during DC Injection Braking.
Sets the time for the output voltage to return to the preset V/f pattern during
Speed Search.
Sets the DC bus undervoltage trip level.
YASKAWA ELECTRIC TOEP C710616 21C YASKAWA AC Drive - A1000 Quick Start Guide
Description
Description
Setting
Default:
<10>
Min: 0
Max: 6
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: 0
Min: 0
Max: 5
Default:
<9>
Min: 0.0 s
Max: 25.5 s
Default:
<9>
Min: 0.1 s
Max: 5.0 s
Default:
<9>
Min: 0.0 s
Max: 5.0 s
Default:
<18> <33>
Min: 150 Vdc
Max: 210 Vdc
<18>