Protection Function Parameters: L - Omron VARISPEED F7 User Manual

Protection Function Parameters: L

Motor Overload: L1
Param-
Name
eter
Num-
Display
ber
Motor pro-
tection
selection
L1-01
MOL Fault
Select
5
Motor pro-
tection time
constant
L1-02
MOL Time
Const
Alarm oper-
ation selec-
tion during
motor over-
heating
L1-03
Mtr OH
Alarm Sel
Motor over-
heating
operation
selection
L1-04
Mtr OH
Fault Sel
52
5-
Setting
Description
Range
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 0 to 3
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 con-
nected to one Inverter, set to
L1-01 to 0 and ensure that each
motor is installed with a pro-
tection device.
Sets the electric thermal detec-
tion time in seconds units.
Usually changing this setting is
not necessary.
The factory setting is 150%
0.1 to
overload for one minute.
When the motor's overload
capability is known, also set
the overload resistance protec-
tion time for when the motor is
hot started.
Selects the operation when the
input motor temperature (ther-
mistor) input exceeds the alarm
detection level (1.17 V) (H3-09
must be set to E).
0: Decelerate to stop 0 to 3
1: Coast to stop
2: Fast stop using the
deceleration time in C1-09.
3: Continue operation (oH3
on the Operator flashes).
Selects the operation when the
motor temperature (ther-
mistor) input exceeds the over-
heating detection level (2.34
V) (H3-09 must be set to E). 0 to 2
0: Decelerate to stop
1: Coast to stop
2: Fast stop using the
deceleration time in C1-09.
Change
Factory during
Setting Opera-
V/f
tion
1 No Q
1.0 min No A
5.0
3 No A
1 No A
Control Methods
MEMO-
V/f Open Closed
BUS
with Loop Loop
Register
PG Vector Vector
Q Q Q 480H
A A A 481H
A A A 482H
A A A 483H
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