Omron SYSDRIVE 3G3FV, User Manual, Page: 284 / 400

6-110
•
This function detects changes in the main circuit’s DC voltage which indicate a power supply phase
loss, large imbalance in the power supply voltage, or deterioration of the main circuit condenser.
Setting Function
0 Disabled.
1
Enabled. (Detects input power supply phase loss, 3-phase imbalance, or de
t
erioration of the
main circuit condenser.)
Parameter Display name Setting Units Default Valid access levels
number
p y g
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
L8-07 Ph Loss Out Sel 0 or 1 --- 0 Advanced
Note This parameter cannot be changed during operation.
•
This function detects an Inverter output phase loss.
Setting Function
0 Disabled.
1 Enabled. (Detects an output phase loss at under 5% of the Inverter’s rated output current.)
•
False phase loss detections may occur when the motor’s capacity is small compared to the capacity of
the Inverter. In this case, disable the detection function by setting L8-07 to 0.
Parameter Display name Setting Units Default
Valid access levels
number
p y g
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
L8-10 Ground Fault Sel 0 or 1 --- 1 Advanced
Settings
Setting Function
0 Disabled. (No ground fault is protected.)
1 Enabled. (The ground fault is protected.)
•
The ground fault protective function can be enabled or disabled with the parameter.
•
The default setting does not normally need to be changed. Set the parameter to 0 if the output power
cable is as long as or longer than 100 m or the stray capacitance of the output cable is excessively high
and the ground fault protective function operates by mistake.
Parameter Display name Setting Units Default
Valid access levels
number
p y g
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
L8-17 L-Spd IGBD Prlcl 0 to 3 --- 1 Advanced Not ap-
plicable.
Parameter Display name Setting Units Default
Valid access levels
number
p y g
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
L8-19 OL2 Chara@L-
Spd 0 or 1 --- 0 Advanced
•
The inverter overload (OL2) characteristics can be set according to the application.
•
Set parameter L8-17 to 0 and parameter L8-10 to 1 if the motor has metal friction noise (or to increase
the carrier frequency).
Advanced Operation
Chapter 6