Omron SYSDRIVE 3G3JV Series User Manual page 142

List of Parameters
Parame- Name
ter No.
n32 Rated motor
current
n33 Motor protec-
tion characteris-
tics
n34 Motor protec-
tive time setting
n35 Cooling fan op-
eration function
Description
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.
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.
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.
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.
Chapter 9
Set- Unit Default Changes
setting
ting of set-
range ting
0.0 to 0.1 A Varies No
120% with
of the ca-
rated pacity.
output
cur-
rent of
the In-
verter.
0 to 2 1 0 No
1 to 60 1 min 8 No
0, 1 1 0 No
Refer-
during ence
opera- page
tion
5-3
6-14
6-14
6-15
9-5