Omron SYSDRIVE 3G3MV User Manual page 319

List of Parameters
Param- Regis- Name
eter ter No.
No.
n038 0126 Motor protec-
tive time
n039 0127 Cooling fan
operation
n040 0128 Direction for
motor rotation
Description
Used to set the electric thermal char-
acteristics of the motor to be con-
nected 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 thermal time
constant and set the parameter
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 problems.
Used to operate the Cooling Fan of
the Inverter 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
Inverter is low, the life of the fan
can be prolonged by setting the
parameter to 0.
0: CCW
1: CW
The motor output shaft rotates in the
counterclockwise ('0") or in the clock-
wise ("1") direction with a forward in-
verter reference.
Note Applicable for software version
No. 010024 or later.
Chapter 10
Set- Unit Default
setting
ting of
range set-
ting
1 to 60 1 min 8
0, 1 1 0
0, 1 1 0
Changes Ref-
during er-
opera- ence
tion page
No 6-41
No 6-42
10-9