Protection Function Parameters: L - YASKAWA CIMR-G7U Technical Manual



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.
Name
Parameter
Number
Display
Motor Sets the motor thermal
Overload overload protection (OL1)
Protection based on the cooling capacity
Selection of the motor.
0: Disabled
L1-01
1: Standard Fan Cooled
MOL Fault
2: Standard Blower Cooled
Select 10:1 motor)
3: Vector Motor
Motor
Sets the motor thermal
Overload
overload protection (OL1)
Protection
L1-02 time. A larger L1-02 time will
Time
increase the time before an
MOL Time
OL1 fault will occur.
Const
Motor Sets operation selection when
Overheat
Alarm
Operation
L1-03
Selection 0: Ramp to Stop
1: Coast to Stop
Mtr OH
2: Fast-Stop
Alarm Sel
3: Alarm Only
Motor Sets stopping method when
Overheat
Fault
Operation (H3-09 = E) exceeds the OH4
L1-04
Selection
0: Ramp to Stop
Mtr OH
1: Coast to Stop
Fault Sel
2: Fast-Stop
Motor
This parameter adjusts the filter
Temperatur
on the motor temperature
e Input
L1-05 analog input (H3-09 = E).
Filter Time
Increase to add stability,
Mtr Temp
decrease to improve response.
Filter
Setting
Description
Range
0 to 3
(< 10:1 motor)
(1000:1 motor)
0.1
to
5.0
the motor temperature analog
input (H3-09 = E) exceeds the
OH3 alarm level (1.17V)
0 to 3
the motor temperature analog
input
0 to 2
fault level (2.34V).
0.00
to
10.00
Control Methods
Change
Open
Factory
V/f
during
Loop
Setting
V/f with
Operation
Vector
PG
1
1 No Q Q Q
1.0 min No A A A
3 No A A A
1 No A A A
0.20sec No A A A
User Parameter Tables
Open
MODBUS
Flux Loop
Register
Vector Vector
2
Q Q 480H
A A 481H
A A 482H
A A 483H
A A 484H
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