Omron SYSDRIVE 3G3RV, User Manual, Page: 182 / 446

5
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K K K K
Protection Function Parameters: L
The
following settings are made with the protection function parameters (L parameters): Motor selection func-
tion,
power loss ridethrough function, stall prevention function, frequency detection, torque limits, and hard-
ware
protection.
n
Motor Overload: L1
Parameters
for motor overloads are shown in the following table.
Param-
eter
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
Register Page LCD
Display
V/f
V/f
with
PG
Open
Loop
L1-01
Motor
pro-
tection
selection
Sets
whether the motor over-
load
function is enabled or
disabled
at electric thermal
overload
relay.
0: Disabled
1: General-purpose
motor
protection
2: Inverter
motor protection
3: Vector
motor protection
In
some applications 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.
When
several motors are
connected
to one Inverter,
set
to 0 and ensure that each
motor
is installed with a pro-
tection
device.
0
to 3
1 No Q Q Q 480H
4-8
6-47
MOL
Fault
Select
L1-02
Motor
pro-
tection
time
constant
Sets
the electric thermal
detection
time in seconds.
Usually
setting is not neces-
sary.
The
factory setting is 150%
overload
for one minute.
When
the motor's overload
resistance
is known, also set
the
overload resistance pro-
tection
time for when the
motor
is hot started.
0.1
to
5.0
(0.1
to
20.0)
1.0
min
(8.0
min)
No A A A 481H 6-47
MOL
Time
Const