Omron SYSDRIVE 3G3JV Series - Page 142

9-5
Parame-
ter No.
Refer-
ence
page
Changes
during
opera-
tion
Default
setting
Unit
of set-
ting
Set-
ting
range
DescriptionName
n32 Rated motor
current
Used to set the rated motor current for mo-
tor overload detection (OL1) based on the
rated motor current.
Note Motor overload detection (OL1) is
disabled by setting the parameter to
0.0.
Note The rated motor current is default to
the standard rated current of the
maximum applicable motor.
0.0 to
120%
of
rated
output
cur-
rent of
the In -
verter.
0.1 A Varies
with
the ca-
pacity.
No 5-3
n33 Motor protec-
tion characteris-
tics
Used to set the motor overload detection
(OL1) for the electronic thermal character-
istics of the motor.
0: Protection characteristics for general-
purpose induction motors
1: Protection characteristics for inverter-
dedicated motors
2: No protection
Note If a single Inverter is connected to
more
than one motor , set the param -
eter to 2 for no protection. The pa-
rameter is also disabled by setting
n32 for rated motor to 0.0.
0 to 2 1 0 No 6-14
n34 Motor protec-
tive time setting
Used to set the electric thermal character-
istics of the motor to be connected in
1-minute increments.
Note The default setting does not require
any changes in normal operation.
Note To
set the parameter according to the
characteristics of the motor, check
with
the motor manufacturer the ther -
mal
time constant and set the param -
eter with some margin. In other
words, set the value slightly shorter
than the thermal time constant.
Note To detect motor overloading quicker ,
reduce the set value, provided that it
does not cause any application prob -
lems.
1 to 60 1 min 8 No 6-14
n35 Cooling fan op -
eration function
Used to operate the Cooling Fan of the In-
verter while the Inverter is turned on or
only while the Inverter is in operation.
0: Rotates only while RUN command is
input and for 1 minute after Inverter
stops operating
1: Rotates while Inverter is turned on
Note This parameter is available only if the
Inverter incorporates a Cooling Fan.
Note If the operation frequency of the In-
verter
is low , the life of the fan can be
prolonged by setting the parameter
to
0.
0, 1 1 0 No 6-15
List of Parameters Chapter 9