Contents

Protection Function Parameters: L
•Motor Overload: L1
Parameter
Number
L1-01
Name
Display
Motor protection
selection
MOL Fault
Select
Motor protection
time constant
L1-02
MOL Time
Const
Description
Sets whether the motor thermal overload
protection function is enabled or
disabled.
0: Disabled
1: General-purpose motor protection
(fan cooled motor)
2: Inverter motor protection
(externally cooled motor)
3: Vector motor protection
When the Inverter power supply is
turned off, the thermal value is
reset, so even if this parameter is
set to 1, protection may not be
effective.
Sets the electric thermal detection time
in seconds units.
Usually changing this setting is not
necessary.
The factory setting is 150% overload
for one minute.
When the motor's overload capability
is known, also set the overload resistance
protection time for when the
motor is hot started.
Setting
Range
Factory
Setting
Control Methods
V/f
Open
Loop
Vector
Closed
Loop
Vector
Change
during
Operation
MEMO-
BUS
Register
Page
0 to 3 1 No Q Q Q 480H 5-38
0.1 to
5.0
1.0 min No A A A 481H 5-38
•Power Loss Settings: L2
Parameter
Number
Name
Display
Description
Setting
Range
Factory
Setting
Control Methods
V/f
Open
Loop
Vector
Closed
Loop
Vector
Change
during
Operation
MEMO-
BUS
Register
Page
L2-05
Undervoltage
detection level
PUV Det Level
Sets the DC bus undervoltage
(UV) detection level (DC bus
voltage).
Usually changing this setting is
not necessary.
150 to
210
*1
190VDC
*1
No A A A 489H --
Battery Voltage
L2-11
Volt@batterydr
Sets the battery voltage. 0 to 400 0VDC No A A A 4CBH 5-68-
* 1. These are values for a 200 V class Inverter. The value for a 400 V class Inverter is the double.
4-30