B.8 L: Protection Function; L1: Motor Protection; L2: Momentary Power Loss Ride-Thru - YASKAWA iQpump1000 Quick Start Manual

B.8 L: Protection Function

L parameters provide protection to the drive and motor, including control during momentary power loss, Stall Prevention,
frequency detection, fault restarts, overtorque detection, and other types of hardware protection.
u

L1: Motor Protection

No.
(Addr. Name
Hex)
L1-01 Motor Overload
(0480) Protection Selection
L1-02 Motor Overload
(0481) Protection Time
Motor Overheat Alarm
L1-03 Operation Selection
(0482) (PTC input)
Motor Overheat Fault
L1-04 Operation Selection
(0483) (PTC input)
Motor Temperature
L1-05
Input Filter Time (PTC
(0484)
input)
Continuous
L1-13
Electrothermal
(046D)
Operation Selection
u

L2: Momentary Power Loss Ride-Thru

No.
(Addr. Name
Hex)
L2-01 Momentary Power Loss
(0485) Operation Selection
L2-02 Momentary Power Loss
(0486) Ride-Thru Time
Momentary Power Loss
L2-03
Minimum Baseblock
(0487)
Time
YASKAWA TOEP YAIP1W 01A YASKAWA AC Drive - iQpump1000 Quick Start Guide
LCD Display
0: Disabled
Mtr OL Charact 1: General purpose motor (standard fan cooled)
0: OL1 Disabled 2: Drive dedicated motor with a speed range of 1:10
1: VT Motor 3: Vector motor with a speed range of 1:100
2: CT Motor 6: General purpose motor (50 Hz)
3: Vector Motor The drive may not be able to provide protection when using
6: 50Hz VT Motor multiple motors, even if overload is enabled in L1-01. Set L1-01
to 0 and install separate thermal relays to each motor.
Sets the motor thermal overload protection (oL1) time.
MOL Time Const
Sets operation when the motor temperature analog input (H3-02,
Mtr OH Alarm Sel H3-10, or H3-06 = E) exceeds the oH3 alarm level.
0 : Ramp to Stop 0: Ramp to stop
1: Coast to Stop 1: Coast to stop
2: Fast-Stop 2: Fast Stop (decelerate to stop using the deceleration time in
3: Alarm only C1-09)
3: Alarm only ("oH3" will flash)
Sets stopping method when the motor temperature analog input
Mtr OH Fault Sel (H3-02, H3-10, or H3-06 = E) exceeds the oH4 fault level.
0 : Ramp to Stop 0: Ramp to stop
1: Coast to Stop 1: Coast to stop
2: Fast-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,
Mtr Temp Filter H3-10, or H3-06 = E).
Mtr OL Mem Sel 0: Disabled
0: Disabled 1: Enabled
1: Enabled 2: Enabled (RTC)
2: Enabled(RTC)
LCD Display
PwrL Selection 0: Disabled. Drive trips on Uv1 fault when power is lost.
0: Disabled 1: Recover within the time set in L2-02. Uv1 will be detected if
1: Enbl with Timer power loss is longer than L2-02.
2: Enbl whl CPU act 2: Recover as long as CPU has power. Uv1 is not detected.
3: KEB Mode 3: KEB deceleration for the time set to L2-02.
4: KEB Stop Mode 4: KEB deceleration as long as CPU has power.
5: KEB Decel Stop 5: KEB deceleration to stop.
Sets the Power Loss Ride-Thru time. Enabled only when
L2-01 = 1 or 3.
PwrL Ridethru t
Sets the minimum wait time for residual motor voltage decay
before the drive output reenergizes after performing Power Loss
Ride-Thru.
PwrL Baseblock t
Increasing the time set to L2-03 may help if overcurrent or
overvoltage occur during Speed Search or during DC Injection
Braking.
B.8 L: Protection Function
Description
Description
Values Page
Default: 1
–
Range: 0 to 3; 6
Default: 1.0 min
Min.: 0.1 –
Max.: 5.0
Default: 3
–
Range: 0 to 3
Default: 1
–
Range: 0 to 2
Default: 0.20 s
Min.: 0.00 –
Max.: 10.00
Default: 1
–
Range: 0 to 2
Values Page
Default: 2
–
Range: 0 to 5
<1>
Default:
–
Min.: 0.0 s
Max.: 25.5 s
<1>
Default:
–
Min.: 0.1 s
Max.: 5.0 s
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