Motor overload: l1, Protection function parameters: l – Yaskawa G7 Drive User Manual
Page 172
User Parameter Tables
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Protection Function Parameters: L
The following settings are made with the protection function parameters (L parameters): Motor selection
function, power loss ridethrough function, stall prevention function, frequency detection, torque limits, and
hardware protection.
Motor Overload: L1
User parameters for motor overloads are shown in the following table.
Parameter
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Operation
Control Methods
MODBUS
Register
Display
V/f
V/f
with
PG
Open
Loop
Vector
1
Flux
Vector
Open
Loop
Vector
2
L1-01
Motor
Overload
Protection
Selection
Sets the motor thermal
overload protection (OL1)
based on the cooling capacity
of the motor.
0: Disabled
1: Standard Fan Cooled
(< 10:1 motor)
2: Standard Blower Cooled
(≥10:1 motor)
3: Vector Motor
(
≤1000:1 motor)
0 to 3
1
No
Q
Q
Q
Q
Q
480H
MOL Fault
Select
L1-02
Motor
Overload
Protection
Time
Sets the motor thermal
overload protection (OL1)
time. A larger L1-02 time will
increase the time before an
OL1 fault will occur.
0.1
to
5.0
1.0 min
No
A
A
A
A
A
481H
MOL Time
Const
L1-03
Motor
Overheat
Alarm
Operation
Selection
Sets operation selection when
the motor temperature analog
input (H3-09 = E) exceeds the
OH3 alarm level (1.17V)
0: Ramp to Stop
1: Coast to Stop
2: Fast-Stop
3: Alarm Only
0 to 3
3
No
A
A
A
A
A
482H
Mtr OH
Alarm Sel
L1-04
Motor
Overheat
Fault
Operation
Selection
Sets stopping method when
the motor temperature analog
input
(H3-09 = E) exceeds the OH4
fault level (2.34V).
0: Ramp to Stop
1: Coast to Stop
2: Fast-Stop
0 to 2
1
No
A
A
A
A
A
483H
Mtr OH
Fault Sel
L1-05
Motor
Temperatur
e Input
Filter Time
This parameter adjusts the filter
on the motor temperature
analog input (H3-09 = E).
Increase to add stability,
decrease to improve response.
0.00
to
10.00
0.20sec
No
A
A
A
A
A
484H
Mtr Temp
Filter