LS SV-iG5H Series, Manual, Page: 176 / 226

Protective functions
162
10.3 Stall prevention
Group Code Parameter Name Setting Range Default Unit
Function
group 1
F59 [Stall prevention select] - 0 - 7 4
F60 [Stall prevention level] - 30 - 200 130 %
I/O group
I54 [Multi-function relay1 select] 7
0 -30
12
I55 [Multi-function relay2 select] 7 17
During acceleration: Motor starts deceleration when current exceeding the value set in F60

flows.
During constant run: Motor decelerates when current exceeding the value set in F60 flows.

During deceleration: Motor deceleration is stopped when inverter DC link voltage rises

above a certain voltage level.
F60: The value is set as the percent of motor rated current (H33).

I54, I55: Inverter outputs signals through multi-function output terminal Relay1 or relay

output Relay2 or external sequence when stall prevention function is activated. Motor
stall status still can be monitored in these codes though F59 is not selected (000).
►
F59: Stall prevention can be set as the table below.
F59
Stall
prevention
Setting
During
Deceleration
During constant
speed
During
Acceleration
Bit 2 Bit 1 Bit 0
0 - - -
1 - -

2 -

-
3 -
 
4

- -
5

-

6
 
-
7
  
►
For example, set F59 to 3 to make stall prevention active during Acceleration and
constant run.
►
When stall prevention is executed during acceleration or deceleration, Accel/Decel time
may take longer than the user-setting time.