L: Protection Function - Omron V1000 User Manual

<39> If this parameter is set to 0, the drive will be unable to respond to MEMOBUS/Modbus commands.
<40> The availability of certain functions depends on the control method used.
Note: Cycle power to the drive to enable MEMOBUS/Modbus settings.
u

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.
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
Use L2 parameters to configure drive functions for momentary power loss conditions.
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
L2-05
Undervoltage Detection
<24>
Level (Uv)
L2-06 KEB Deceleration Time
L2-07 KEB Acceleration Time
SIEP C710606 20 OYMC AC Drive - V1000 User Manual
Description
L1: Motor Protection Functions
Use L1 parameters to configure motor protective functions.
Sets the motor thermal overload protection (oL1) based on
the cooling capacity of the motor.
0: Disabled
1: Standard Fan Cooled (speed range < 10:1)
2: Standard Blower Cooled (speed range ≥ 10:1)
3: Vector Motor (speed range 100:1)
4: PM motor with variable torque
NOTICE: When multiple motors are used the drive may not
be able to provide protection, even if it is enabled in L1-01.
Set L1-01 to "0" and ensure each motor has a thermal relay
installed.
Sets the motor thermal overload protection (oL1) time.
A larger L1-02 time will increase the time for an oL1 fault to
occur.
This parameter does not typically require adjustment. Should
be set in accordance with the overload tolerance of the motor.
Sets operation when the motor temperature analog input
(H3-02/10 = E) exceeds the oH3 alarm level.
0: Ramp to Stop
1: Coast to Stop
2: Fast-stop using C1-09
3: Alarm Only ("oH3" will flash)
Sets stopping method when the motor temperature analog
input (H3-02/10 = E) exceeds the oH4 fault level.
0: Ramp to Stop
1: Coast to Stop
2: Fast-stop
This parameter adjusts the filter on the motor temperature
analog input (H3-02 or H3-10 = E). Increase to add stability,
decrease to improve response.
Determines whether or not to hold the electrothermal value
when the power supply is interrupted.
0: Disabled
1: Enabled
L2: Momentary Power Loss
Enables and disables the momentary power loss function.
0: Disabled - Drive trips on (Uv1) fault when power is lost.
1: Power Loss Ride-Thru Time - Drive will restart if power
returns within the time set in L2-02.
2: CPU Power Active - Drive will restart if power returns as
long as the CPU is working.
Sets the Power Loss Ride-Thru time. Only effective when
L2-01 = 1.
Sets the minimum wait time for residual motor voltage decay
before the drive output reenergizes after power loss Ride-
Thru. If L2-03 is greater than L2-02, operation resumes after
the time set in L2-03.
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. If this is set lower
than the default setting, additional AC input impedance or
DC bus reactance may be necessary.
This value is used for KEB activation if L2-01 > 0.
Sets the time required to decelerate from the speed when KEB
was activated to zero speed.
Set the time to accelerate to the set speed after recovery from
a momentary power loss. If set to 0.0, the active acceleration
time is used.
B.2 Parameter Table
Control
Mode
Addr.
Range Def.
O P
V/f
LV M
1
0 to 4 S S S
<2>
1.0
0.1 to 5.0 A A A
min
0 to 3 3 A A A
0 to 2 1 A A A
0.00 to
0.20 s A A A
10.00
0 to 1 1 A A A
0 to 2 0 A A A
For a restart to occur, the run command
must be maintained throughout the
Ride-Thru period.
<12>
0.0 to 25.5 A A A
<57>
0.1 to 5.0 A A A
<12>
0.0 to 5.0 A A A
<9>
150 to 210 A A A
<12>
0.0 to
0.0 s A A A
200.0
0.0 to 25.5 0.0 s A A A
Pg.
Hex
480 185
481 186
482 188
483 188
484 188
46D 188
485
188
486 189
487 189
488 189
489 189
48A 191
B
48B 191
321