Omron SYSDRIVE 3G3MV - Cooling Fan Operation Function (N039); Momentary Power Interruption Compensation (N081)

6-42
n038 Motor Protection Time Register 0126
Hex
Changes during
operation
No
Setting
range
1 to 60 (min) Unit of
setting
1 min Default setting 8
Set Values
·Thisparameterisusedto settheelectronic thermalprotectionconstantof motorover-
load detection OL1.
·The default setting does not need any changes in normal operation.
·Toset the parameteraccordingtothecharacteristicsofthe motor, confirm thethermal
timeconstantwiththemotormanufacturerandsettheparameterwithsomemargin.In
other words, set the value a little shorter than the thermal time constant.
·To detect motor overloading more quickly, reduce the set value, provided that it does
not cause any application problems.
6-10-3 Cooling Fan Operation Function (n039)
·This parameter is used to operate the cooling fan of the Inverter while the Inverter is
turned ON or only while the Inverter is in operation.
n039 Cooling Fan Operation Register 0127
Hex
Changes during
operation
No
Setting
range
0, 1 Unit of
setting
1 Default setting 0
Set Values
Value Description
0 The fan rotates only while the RUN command is input and for 1 minute after
the Inverter stops operating.
1 The fan rotates while the Inverter is turned ON.
·This parameter is available only if the Inverter incorporates a cooling fan.
·If the operation frequency of the Inverter is low, the life of the fan can be prolonged by
setting the parameter to 0.
6-10-4 Momentary Power Interruption Compensation
(n081)
·The parameter specifies the processing that will be performed when a momentary
power interruption occurs.
Advanced Operation Chapter 6